From patchwork Wed Mar 27 00:04:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782907 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CF51D7FF for ; Wed, 27 Mar 2024 00:05:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497928; cv=none; b=fmzervs6L2SstBncH1pdtxS/fcRMtAcjo0vek9SedKSi9yTVsUHLPAw5KfD+BK2l+ZCPYOKOwtcg4zP3aRXZh1QKp75chwWrTHWluX6+xQOo4bjaMu/FSzcJ3DtHUm9obm+w4ktmn1BzcoTB3W54axI21NDIFVU0SCV53km22BY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497928; c=relaxed/simple; bh=qZ8hI9dcLxcs2LNTuW7ubttGfSY7gQesjIcy0fF8B5A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=k8cA54Z+E86z5+ru3IzBRKAcn82Rkt79TaedIwcoFOS8af1Jf/PlH56d2DgsxAgQj4h2Y8zqHreu2uk2Zv+rOwCTVubWf8LDMZ2B4wvtKPU8899lBhaA9qQGO4oNjFiww1/wKezAKX3P3gubboq0Hcn9BlJCJUj9jhmhoNUtHeg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=jhvlW8Fp; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="jhvlW8Fp" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 0EC8B9CE; Wed, 27 Mar 2024 01:04:48 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497889; bh=qZ8hI9dcLxcs2LNTuW7ubttGfSY7gQesjIcy0fF8B5A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jhvlW8FpvrvKicCoGvNoUt1ZpV2yEvjr2qLlU70/MaIY0xssgQ6IGZ/uNTCz/PjKr NJu13KyCIucJoECKKtDgxSmRS2G+WaG79ZKr1llknFW+A9UZfRX/WOq/2bNdexbdRY HUp66aN99Y2Vwoy+rxuiKTuRbuBl7MqWg13nJdp4= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Jean-Michel Hautbois , Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com Subject: [PATCH v8 01/10] media: v4l: Add V4L2-PIX-FMT-Y12P format Date: Wed, 27 Mar 2024 02:04:59 +0200 Message-ID: <20240327000510.2541-2-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jean-Michel Hautbois This is a packed grey-scale image format with a depth of 12 bits per pixel. Two consecutive pixels are packed into 3 bytes. The first 2 bytes contain the 8 high order bits of the pixels, and the 3rd byte contains the 4 least significants bits of each pixel, in the same order. Add the entry in userspace API, and document it. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- .../userspace-api/media/v4l/pixfmt-yuv-luma.rst | 11 +++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 3 files changed, 13 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst index cf8e4dfbfbd4..a650ceda7cdb 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst @@ -114,6 +114,17 @@ are often referred to as greyscale formats. - ... - ... + * .. _V4L2-PIX-FMT-Y12P: + + - ``V4L2_PIX_FMT_Y12P`` + - 'Y12P' + + - Y'\ :sub:`0`\ [11:4] + - Y'\ :sub:`1`\ [11:4] + - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`0`\ [3:0] + - ... + - ... + * .. _V4L2-PIX-FMT-Y14: - ``V4L2_PIX_FMT_Y14`` diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 72cdea3c1316..01959d030b84 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1313,6 +1313,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_Y10BPACK: descr = "10-bit Greyscale (Packed)"; break; case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break; case V4L2_PIX_FMT_IPU3_Y10: descr = "10-bit greyscale (IPU3 Packed)"; break; + case V4L2_PIX_FMT_Y12P: descr = "12-bit Greyscale (MIPI Packed)"; break; case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break; case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break; case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index 8b5a8286f138..a7ff109cf8b3 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -599,6 +599,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_Y10BPACK v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */ #define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */ #define V4L2_PIX_FMT_IPU3_Y10 v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */ +#define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale, MIPI RAW12 packed */ /* Palette formats */ #define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */ From patchwork Wed Mar 27 00:05:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782906 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DC218EAD7 for ; Wed, 27 Mar 2024 00:05:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497931; cv=none; b=EnzuceiWo/7L66QJwqBNPdKKN3IPgjjrUhA+v2kFeMc0Cwx8vCDfr8eJ+q+JG1ztqy5SwoE9hRTYir937j8V9F5+WXrYTYfREpVaVPw783zPs5M1w4+3Mi9FdfOqmGtdMTEzdKM9W5nW5hsTuqb65+Bc2GhYMgnIIzTl4jnwrVE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497931; c=relaxed/simple; bh=cAnjR5HiVfKrnBRXDB4tDcOKkfTEOawbmBid6rkccCY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497891; bh=cAnjR5HiVfKrnBRXDB4tDcOKkfTEOawbmBid6rkccCY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=njeZGbRPCBgXw0yYqidg8O+0FgcTeDcXIK1L0V0nTUmzXWS8smo8DGJFIwBatbzS2 tFCtSKn6IJwyvCLdst2zjF1EdXeJxmatc+jh2VIEvEfKfWFXBCcl+mVO73bBgHEe3s DLl0GT1Thekloporg6iK3BdYqXX8uw42zJgQ4S4U= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Jean-Michel Hautbois , Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com Subject: [PATCH v8 02/10] media: v4l: Add V4L2-PIX-FMT-Y14P format Date: Wed, 27 Mar 2024 02:05:00 +0200 Message-ID: <20240327000510.2541-3-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jean-Michel Hautbois This is a packed grey-scale image format with a depth of 14 bits per pixel. Every four consecutive samples are packed into seven bytes. Each of the first four bytes contain the eight high order bits of the pixels, and the three following bytes contains the six least significants bits of each pixel, in the same order. As the other formats only needed 5 bytes before, append two bytes in the documentation array. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- .../media/v4l/pixfmt-yuv-luma.rst | 37 +++++++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 3 files changed, 39 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst index a650ceda7cdb..b3c5779521d8 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-yuv-luma.rst @@ -36,6 +36,8 @@ are often referred to as greyscale formats. - Byte 2 - Byte 3 - Byte 4 + - Byte 5 + - Byte 6 * .. _V4L2-PIX-FMT-GREY: @@ -47,6 +49,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-IPU3-Y10: @@ -58,6 +62,8 @@ are often referred to as greyscale formats. - Y'\ :sub:`2`\ [3:0] Y'\ :sub:`1`\ [9:6] - Y'\ :sub:`3`\ [1:0] Y'\ :sub:`2`\ [9:4] - Y'\ :sub:`3`\ [9:2] + - ... + - ... * .. _V4L2-PIX-FMT-Y10: @@ -69,6 +75,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-Y10BPACK: @@ -80,6 +88,8 @@ are often referred to as greyscale formats. - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`2`\ [9:6] - Y'\ :sub:`2`\ [5:0] Y'\ :sub:`3`\ [9:8] - Y'\ :sub:`3`\ [7:0] + - ... + - ... * .. _V4L2-PIX-FMT-Y10P: @@ -91,6 +101,8 @@ are often referred to as greyscale formats. - Y'\ :sub:`2`\ [9:2] - Y'\ :sub:`3`\ [9:2] - Y'\ :sub:`3`\ [1:0] Y'\ :sub:`2`\ [1:0] Y'\ :sub:`1`\ [1:0] Y'\ :sub:`0`\ [1:0] + - ... + - ... * .. _V4L2-PIX-FMT-Y12: @@ -102,6 +114,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-Y012: @@ -113,6 +127,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-Y12P: @@ -124,6 +140,8 @@ are often referred to as greyscale formats. - Y'\ :sub:`1`\ [3:0] Y'\ :sub:`0`\ [3:0] - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-Y14: @@ -135,6 +153,21 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... + + * .. _V4L2-PIX-FMT-Y14P: + + - ``V4L2_PIX_FMT_Y14P`` + - 'Y14P' + + - Y'\ :sub:`0`\ [13:6] + - Y'\ :sub:`1`\ [13:6] + - Y'\ :sub:`2`\ [13:6] + - Y'\ :sub:`3`\ [13:6] + - Y'\ :sub:`1`\ [1:0] Y'\ :sub:`0`\ [5:0] + - Y'\ :sub:`2`\ [3:0] Y'\ :sub:`1`\ [5:2] + - Y'\ :sub:`3`\ [5:0] Y'\ :sub:`2`\ [5:4] * .. _V4L2-PIX-FMT-Y16: @@ -146,6 +179,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... * .. _V4L2-PIX-FMT-Y16-BE: @@ -157,6 +192,8 @@ are often referred to as greyscale formats. - ... - ... - ... + - ... + - ... .. raw:: latex diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core/v4l2-ioctl.c index 01959d030b84..c38efaa848e2 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1314,6 +1314,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_Y10P: descr = "10-bit Greyscale (MIPI Packed)"; break; case V4L2_PIX_FMT_IPU3_Y10: descr = "10-bit greyscale (IPU3 Packed)"; break; case V4L2_PIX_FMT_Y12P: descr = "12-bit Greyscale (MIPI Packed)"; break; + case V4L2_PIX_FMT_Y14P: descr = "14-bit Greyscale (MIPI Packed)"; break; case V4L2_PIX_FMT_Y8I: descr = "Interleaved 8-bit Greyscale"; break; case V4L2_PIX_FMT_Y12I: descr = "Interleaved 12-bit Greyscale"; break; case V4L2_PIX_FMT_Z16: descr = "16-bit Depth"; break; diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index a7ff109cf8b3..1c9e1275c422 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -600,6 +600,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_Y10P v4l2_fourcc('Y', '1', '0', 'P') /* 10 Greyscale, MIPI RAW10 packed */ #define V4L2_PIX_FMT_IPU3_Y10 v4l2_fourcc('i', 'p', '3', 'y') /* IPU3 packed 10-bit greyscale */ #define V4L2_PIX_FMT_Y12P v4l2_fourcc('Y', '1', '2', 'P') /* 12 Greyscale, MIPI RAW12 packed */ +#define V4L2_PIX_FMT_Y14P v4l2_fourcc('Y', '1', '4', 'P') /* 14 Greyscale, MIPI RAW14 packed */ /* Palette formats */ #define V4L2_PIX_FMT_PAL8 v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */ From patchwork Wed Mar 27 00:05:01 2024 Content-Type: text/plain; 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a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497892; bh=YmUVX1SwfoSY32aabkz6u4KAs//CrwV2D9/oY7z+N28=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EJtEx5WyBkv97V6R6x5mwReTLNPB7xKz7qIFqxZ/NVwFs5Lmhzgm/a3lbBzzSPDsE ObyUvsRkmW2DUtgj2ZgKBjnDfDAimDXWJH9sCE96kX0fYezxEaRmPAdWlnKoT0bVpF WJnygLEUBI4IODJ4tTPn7lxItLAfcOH0bDJkzqm8= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 03/10] dt-bindings: media: Add bindings for bcm2835-unicam Date: Wed, 27 Mar 2024 02:05:01 +0200 Message-ID: <20240327000510.2541-4-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Dave Stevenson Introduce the dt-bindings documentation for bcm2835 CCP2/CSI2 Unicam camera interface. Signed-off-by: Dave Stevenson Co-developed-by: Naushir Patuck Signed-off-by: Naushir Patuck Co-developed-by: Jean-Michel Hautbois Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Reviewed-by: Rob Herring Signed-off-by: Laurent Pinchart --- Changes since v7: - Make bus-type mandatory - Refuse additional properties for endpoint Changes since v5: - Squash MAINTAINERS changes in Changes since v3: - Make MAINTAINERS its own patch - Describe the reg and clocks correctly - Use a vendor entry for the number of data lanes --- .../bindings/media/brcm,bcm2835-unicam.yaml | 127 ++++++++++++++++++ MAINTAINERS | 6 + 2 files changed, 133 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml diff --git a/Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml b/Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml new file mode 100644 index 000000000000..5fb5d60f069a --- /dev/null +++ b/Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml @@ -0,0 +1,127 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/brcm,bcm2835-unicam.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM283x Camera Interface (Unicam) + +maintainers: + - Raspberry Pi Kernel Maintenance + +description: |- + The Unicam block on BCM283x SoCs is the receiver for either + CSI-2 or CCP2 data from image sensors or similar devices. + + The main platform using this SoC is the Raspberry Pi family of boards. On + the Pi the VideoCore firmware can also control this hardware block, and + driving it from two different processors will cause issues. To avoid this, + the firmware checks the device tree configuration during boot. If it finds + device tree nodes whose name starts with 'csi' then it will stop the firmware + accessing the block, and it can then safely be used via the device tree + binding. + +properties: + compatible: + const: brcm,bcm2835-unicam + + reg: + items: + - description: Unicam block. + - description: Clock Manager Image (CMI) block. + + reg-names: + items: + - const: unicam + - const: cmi + + interrupts: + maxItems: 1 + + clocks: + items: + - description: Clock to drive the LP state machine of Unicam. + - description: Clock for the VPU (core clock). + + clock-names: + items: + - const: lp + - const: vpu + + power-domains: + items: + - description: Unicam power domain + + brcm,num-data-lanes: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [ 2, 4 ] + description: | + Number of CSI-2 data lanes supported by this Unicam instance. The number + of data lanes actively used is specified with the data-lanes endpoint + property. + + port: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + additionalProperties: false + + properties: + bus-type: + enum: [ 3, 4 ] + + clock-noncontinuous: true + data-lanes: true + remote-endpoint: true + + required: + - bus-type + - data-lanes + - remote-endpoint + + required: + - endpoint + +required: + - compatible + - reg + - reg-names + - interrupts + - clocks + - clock-names + - power-domains + - brcm,num-data-lanes + - port + +additionalProperties: False + +examples: + - | + #include + #include + #include + #include + + csi1: csi@7e801000 { + compatible = "brcm,bcm2835-unicam"; + reg = <0x7e801000 0x800>, + <0x7e802004 0x4>; + reg-names = "unicam", "cmi"; + interrupts = ; + clocks = <&clocks BCM2835_CLOCK_CAM1>, + <&firmware_clocks 4>; + clock-names = "lp", "vpu"; + power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>; + brcm,num-data-lanes = <2>; + port { + csi1_ep: endpoint { + remote-endpoint = <&imx219_0>; + bus-type = ; + data-lanes = <1 2>; + }; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 63c42cc6748b..ee7ee1ec6370 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4035,6 +4035,12 @@ N: bcm113* N: bcm216* N: kona +BROADCOM BCM2835 CAMERA DRIVERS +M: Raspberry Pi Kernel Maintenance +L: linux-media@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml + BROADCOM BCM47XX MIPS ARCHITECTURE M: Hauke Mehrtens M: Rafał Miłecki From patchwork Wed Mar 27 00:05:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 783862 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B86A168B7; 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arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="AWFJI7Cx" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 5EDAA2D6B; Wed, 27 Mar 2024 01:04:54 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497894; bh=BT+db5WhT0lXRrGIPRj7YHGcFXEAWAG8AVp4UBWwG1Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AWFJI7CxDajyvmlDFxnOvXaKbyU95FWeZvCMjJAjvU3qb7vWo3jxv1x2l4YBbI8rq RtTk4q52atEumsIaQ1Uc73pxPU7GEQtTHN7iGxJId1h+RfSZquyKmaDlyIShWnph1j TrkKWsoY/72mIW8zshbNmMqnWkPQXCJ6vxsvyO7I= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 04/10] media: bcm2835-unicam: Add support for CCP2/CSI2 camera interface Date: Wed, 27 Mar 2024 02:05:02 +0200 Message-ID: <20240327000510.2541-5-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Dave Stevenson Add a driver for the Unicam camera receiver block on BCM283x processors. It is represented as two video device nodes: unicam-image and unicam-embedded which are connected to an internal subdev (named unicam-subdev) in order to manage streams routing. Signed-off-by: Dave Stevenson Co-developed-by: Naushir Patuck Signed-off-by: Naushir Patuck Co-developed-by: Jean-Michel Hautbois Signed-off-by: Jean-Michel Hautbois Co-developed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- Changes since v7: - Indentation, line wrap and white space fixes - Add copyright notice for Ideas on Board - Use unsigned values for shifts in macro - Replace condition and assignment with max() - Don't set the serial to an empty string manually - Don't use loop for lane clocks setting - Store PUM value in struct unicam_format_info Changes since v6: - Fix typos in comments - Drop outdated comment - Indentation fixes - Turn UNICAM_SD_PAD_* into an enum - Drop unicam_format_info.metadata_fmt - Remove unneeded dev_dbg() - Report meta frame sizes as V4L2_FRMSIZE_TYPE_STEPWISE - Drop stray semicolons - Set V4L2_FMT_FLAG_META_LINE_BASED for metadata format - Rename error label - Use .get_mbus_config() to get number of data lanes - Drop minimum of 3 buffers in .queue_setup() - Merge locks for the two video nodes - Rework start/stop to avoid race conditions Changes since v5: - Move to drivers/media/platform/broadcom/ - Port to the upstream V4L2 streams API - Rebase on latest metadata API proposal - Add missing error message - Drop unneeded documentation block for unicam_isr() - Drop unneeded dev_dbg() and dev_err() messages - Drop unneeded streams_mask and fmt checks - Drop unused unicam_sd_pad_is_sink() - Drop unneeded includes - Drop v4l2_ctrl_subscribe_event() call - Use pm_runtime_resume_and_get() - Indentation and line wrap fixes - Let the framework set bus_info - Use v4l2_fwnode_endpoint_parse() - Fix media device cleanup - Drop lane reordering checks - Fix subdev state locking - Drop extra debug messages - Move clock handling to runtime PM handlers - Reorder functions - Rename init functions for more clarity - Initialize runtime PM earlier - Clarify error messages - Simplify subdev init with local variable - Fix subdev cleanup - Fix typos and indentation - Don't initialize local variables needlessly - Simplify num lanes check - Fix metadata handling in subdev set_fmt - Drop manual fallback to .s_stream() - Pass v4l2_pix_format to unicam_calc_format_size_bpl() - Simplify unicam_set_default_format() - Fix default format settings - Add busy check in unicam_s_fmt_meta() - Add missing \n at end of format strings - Fix metadata handling in subdev set_fmt - Fix locking when starting streaming - Return buffers from start streaming fails - Fix format validation for metadata node - Use video_device_pipeline_{start,stop}() helpers - Simplify format enumeration - Drop unset variable - Update MAINTAINERS entry - Update to the upstream v4l2_async_nf API - Update to the latest subdev routing API - Update to the latest subdev state API - Move from subdev .init_cfg() to .init_state() - Update to the latest videobuf2 API - Fix v4l2_subdev_enable_streams() error check - Use correct pad for the connected subdev - Return buffers to vb2 when start streaming fails - Improve debugging in start streaming handler - Simplify DMA address management - Drop comment about bcm2835-camera driver - Clarify comments that explain min/max sizes - Pass v4l2_pix_format to unicam_try_fmt() - Drop unneeded local variables - Rename image-related constants and functions - Turn unicam_fmt.metadata_fmt into bool - Rename unicam_fmt to unicam_format_info - Rename unicam_format_info variables to fmtinfo - Rename unicam_node.v_fmt to fmt - Add metadata formats for RAW10, RAW12 and RAW14 - Make metadata formats line-based - Validate format on metadata video device - Add Co-devlopped-by tags Changes since v3: - Add the vendor prefix for DT name - Use the reg-names in DT parsing - Remove MAINTAINERS entry Changes since v2: - Change code organization - Remove unused variables - Correct the fmt_meta functions - Rewrite the start/stop streaming - You can now start the image node alone, but not the metadata one - The buffers are allocated per-node - only the required stream is started, if the route exists and is enabled - Prefix the macros with UNICAM_ to not have too generic names - Drop colorspace support Changes since v1: - Replace the unicam_{info,debug,error} macros with dev_*() --- MAINTAINERS | 1 + drivers/media/platform/Kconfig | 1 + drivers/media/platform/Makefile | 1 + drivers/media/platform/broadcom/Kconfig | 23 + drivers/media/platform/broadcom/Makefile | 3 + .../platform/broadcom/bcm2835-unicam-regs.h | 246 ++ .../media/platform/broadcom/bcm2835-unicam.c | 2671 +++++++++++++++++ 7 files changed, 2946 insertions(+) create mode 100644 drivers/media/platform/broadcom/Kconfig create mode 100644 drivers/media/platform/broadcom/Makefile create mode 100644 drivers/media/platform/broadcom/bcm2835-unicam-regs.h create mode 100644 drivers/media/platform/broadcom/bcm2835-unicam.c diff --git a/MAINTAINERS b/MAINTAINERS index ee7ee1ec6370..a61203ea1104 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4040,6 +4040,7 @@ M: Raspberry Pi Kernel Maintenance L: linux-media@vger.kernel.org S: Maintained F: Documentation/devicetree/bindings/media/brcm,bcm2835-unicam.yaml +F: drivers/media/platform/bcm2835/ BROADCOM BCM47XX MIPS ARCHITECTURE M: Hauke Mehrtens diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 91e54215de3a..2d79bfc68c15 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -67,6 +67,7 @@ source "drivers/media/platform/amlogic/Kconfig" source "drivers/media/platform/amphion/Kconfig" source "drivers/media/platform/aspeed/Kconfig" source "drivers/media/platform/atmel/Kconfig" +source "drivers/media/platform/broadcom/Kconfig" source "drivers/media/platform/cadence/Kconfig" source "drivers/media/platform/chips-media/Kconfig" source "drivers/media/platform/intel/Kconfig" diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile index 3296ec1ebe16..da17301f7439 100644 --- a/drivers/media/platform/Makefile +++ b/drivers/media/platform/Makefile @@ -10,6 +10,7 @@ obj-y += amlogic/ obj-y += amphion/ obj-y += aspeed/ obj-y += atmel/ +obj-y += broadcom/ obj-y += cadence/ obj-y += chips-media/ obj-y += intel/ diff --git a/drivers/media/platform/broadcom/Kconfig b/drivers/media/platform/broadcom/Kconfig new file mode 100644 index 000000000000..cc2c9afcc948 --- /dev/null +++ b/drivers/media/platform/broadcom/Kconfig @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 + +config VIDEO_BCM2835_UNICAM + tristate "Broadcom BCM283x/BCM271x Unicam video capture driver" + depends on ARCH_BCM2835 || COMPILE_TEST + depends on PM + depends on VIDEO_DEV + select MEDIA_CONTROLLER + select V4L2_FWNODE + select VIDEO_V4L2_SUBDEV_API + select VIDEOBUF2_DMA_CONTIG + help + Say Y here to enable support for the BCM283x/BCM271x CSI-2 receiver. + This is a V4L2 driver that controls the CSI-2 receiver directly, + independently from the VC4 firmware. + + This driver is mutually exclusive with the use of bcm2835-camera. The + firmware will disable all access to the peripheral from within the + firmware if it finds a DT node using it, and bcm2835-camera will + therefore fail to probe. + + To compile this driver as a module, choose M here. The module will be + called bcm2835-unicam. diff --git a/drivers/media/platform/broadcom/Makefile b/drivers/media/platform/broadcom/Makefile new file mode 100644 index 000000000000..03d2045aba2e --- /dev/null +++ b/drivers/media/platform/broadcom/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-$(CONFIG_VIDEO_BCM2835_UNICAM) += bcm2835-unicam.o diff --git a/drivers/media/platform/broadcom/bcm2835-unicam-regs.h b/drivers/media/platform/broadcom/bcm2835-unicam-regs.h new file mode 100644 index 000000000000..fce6fa92707c --- /dev/null +++ b/drivers/media/platform/broadcom/bcm2835-unicam-regs.h @@ -0,0 +1,246 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* + * Copyright (C) 2017-2020 Raspberry Pi Trading. + * Dave Stevenson + */ + +#ifndef VC4_REGS_UNICAM_H +#define VC4_REGS_UNICAM_H + +#include + +/* + * The following values are taken from files found within the code drop + * made by Broadcom for the BCM21553 Graphics Driver, predominantly in + * brcm_usrlib/dag/vmcsx/vcinclude/hardware_vc4.h. + * They have been modified to be only the register offset. + */ +#define UNICAM_CTRL 0x000 +#define UNICAM_STA 0x004 +#define UNICAM_ANA 0x008 +#define UNICAM_PRI 0x00c +#define UNICAM_CLK 0x010 +#define UNICAM_CLT 0x014 +#define UNICAM_DAT0 0x018 +#define UNICAM_DAT1 0x01c +#define UNICAM_DAT2 0x020 +#define UNICAM_DAT3 0x024 +#define UNICAM_DLT 0x028 +#define UNICAM_CMP0 0x02c +#define UNICAM_CMP1 0x030 +#define UNICAM_CAP0 0x034 +#define UNICAM_CAP1 0x038 +#define UNICAM_ICTL 0x100 +#define UNICAM_ISTA 0x104 +#define UNICAM_IDI0 0x108 +#define UNICAM_IPIPE 0x10c +#define UNICAM_IBSA0 0x110 +#define UNICAM_IBEA0 0x114 +#define UNICAM_IBLS 0x118 +#define UNICAM_IBWP 0x11c +#define UNICAM_IHWIN 0x120 +#define UNICAM_IHSTA 0x124 +#define UNICAM_IVWIN 0x128 +#define UNICAM_IVSTA 0x12c +#define UNICAM_ICC 0x130 +#define UNICAM_ICS 0x134 +#define UNICAM_IDC 0x138 +#define UNICAM_IDPO 0x13c +#define UNICAM_IDCA 0x140 +#define UNICAM_IDCD 0x144 +#define UNICAM_IDS 0x148 +#define UNICAM_DCS 0x200 +#define UNICAM_DBSA0 0x204 +#define UNICAM_DBEA0 0x208 +#define UNICAM_DBWP 0x20c +#define UNICAM_DBCTL 0x300 +#define UNICAM_IBSA1 0x304 +#define UNICAM_IBEA1 0x308 +#define UNICAM_IDI1 0x30c +#define UNICAM_DBSA1 0x310 +#define UNICAM_DBEA1 0x314 +#define UNICAM_MISC 0x400 + +/* + * The following bitmasks are from the kernel released by Broadcom + * for Android - https://android.googlesource.com/kernel/bcm/ + * The Rhea, Hawaii, and Java chips all contain the same VideoCore4 + * Unicam block as BCM2835, as defined in eg + * arch/arm/mach-rhea/include/mach/rdb_A0/brcm_rdb_cam.h and similar. + * Values reworked to use the kernel BIT and GENMASK macros. + * + * Some of the bit mnenomics have been amended to match the datasheet. + */ +/* UNICAM_CTRL Register */ +#define UNICAM_CPE BIT(0) +#define UNICAM_MEM BIT(1) +#define UNICAM_CPR BIT(2) +#define UNICAM_CPM_MASK GENMASK(3, 3) +#define UNICAM_CPM_CSI2 0 +#define UNICAM_CPM_CCP2 1 +#define UNICAM_SOE BIT(4) +#define UNICAM_DCM_MASK GENMASK(5, 5) +#define UNICAM_DCM_STROBE 0 +#define UNICAM_DCM_DATA 1 +#define UNICAM_SLS BIT(6) +#define UNICAM_PFT_MASK GENMASK(11, 8) +#define UNICAM_OET_MASK GENMASK(20, 12) + +/* UNICAM_STA Register */ +#define UNICAM_SYN BIT(0) +#define UNICAM_CS BIT(1) +#define UNICAM_SBE BIT(2) +#define UNICAM_PBE BIT(3) +#define UNICAM_HOE BIT(4) +#define UNICAM_PLE BIT(5) +#define UNICAM_SSC BIT(6) +#define UNICAM_CRCE BIT(7) +#define UNICAM_OES BIT(8) +#define UNICAM_IFO BIT(9) +#define UNICAM_OFO BIT(10) +#define UNICAM_BFO BIT(11) +#define UNICAM_DL BIT(12) +#define UNICAM_PS BIT(13) +#define UNICAM_IS BIT(14) +#define UNICAM_PI0 BIT(15) +#define UNICAM_PI1 BIT(16) +#define UNICAM_FSI_S BIT(17) +#define UNICAM_FEI_S BIT(18) +#define UNICAM_LCI_S BIT(19) +#define UNICAM_BUF0_RDY BIT(20) +#define UNICAM_BUF0_NO BIT(21) +#define UNICAM_BUF1_RDY BIT(22) +#define UNICAM_BUF1_NO BIT(23) +#define UNICAM_DI BIT(24) + +#define UNICAM_STA_MASK_ALL \ + (UNICAM_SBE | UNICAM_PBE | UNICAM_HOE | UNICAM_PLE | UNICAM_SSC | \ + UNICAM_CRCE | UNICAM_IFO | UNICAM_OFO | UNICAM_DL | UNICAM_PS | \ + UNICAM_PI0 | UNICAM_PI1) + +/* UNICAM_ANA Register */ +#define UNICAM_APD BIT(0) +#define UNICAM_BPD BIT(1) +#define UNICAM_AR BIT(2) +#define UNICAM_DDL BIT(3) +#define UNICAM_CTATADJ_MASK GENMASK(7, 4) +#define UNICAM_PTATADJ_MASK GENMASK(11, 8) + +/* UNICAM_PRI Register */ +#define UNICAM_PE BIT(0) +#define UNICAM_PT_MASK GENMASK(2, 1) +#define UNICAM_NP_MASK GENMASK(7, 4) +#define UNICAM_PP_MASK GENMASK(11, 8) +#define UNICAM_BS_MASK GENMASK(15, 12) +#define UNICAM_BL_MASK GENMASK(17, 16) + +/* UNICAM_CLK Register */ +#define UNICAM_CLE BIT(0) +#define UNICAM_CLPD BIT(1) +#define UNICAM_CLLPE BIT(2) +#define UNICAM_CLHSE BIT(3) +#define UNICAM_CLTRE BIT(4) +#define UNICAM_CLAC_MASK GENMASK(8, 5) +#define UNICAM_CLSTE BIT(29) + +/* UNICAM_CLT Register */ +#define UNICAM_CLT1_MASK GENMASK(7, 0) +#define UNICAM_CLT2_MASK GENMASK(15, 8) + +/* UNICAM_DATn Registers */ +#define UNICAM_DLE BIT(0) +#define UNICAM_DLPD BIT(1) +#define UNICAM_DLLPE BIT(2) +#define UNICAM_DLHSE BIT(3) +#define UNICAM_DLTRE BIT(4) +#define UNICAM_DLSM BIT(5) +#define UNICAM_DLFO BIT(28) +#define UNICAM_DLSTE BIT(29) + +#define UNICAM_DAT_MASK_ALL (UNICAM_DLSTE | UNICAM_DLFO) + +/* UNICAM_DLT Register */ +#define UNICAM_DLT1_MASK GENMASK(7, 0) +#define UNICAM_DLT2_MASK GENMASK(15, 8) +#define UNICAM_DLT3_MASK GENMASK(23, 16) + +/* UNICAM_ICTL Register */ +#define UNICAM_FSIE BIT(0) +#define UNICAM_FEIE BIT(1) +#define UNICAM_IBOB BIT(2) +#define UNICAM_FCM BIT(3) +#define UNICAM_TFC BIT(4) +#define UNICAM_LIP_MASK GENMASK(6, 5) +#define UNICAM_LCIE_MASK GENMASK(28, 16) + +/* UNICAM_IDI0/1 Register */ +#define UNICAM_ID0_MASK GENMASK(7, 0) +#define UNICAM_ID1_MASK GENMASK(15, 8) +#define UNICAM_ID2_MASK GENMASK(23, 16) +#define UNICAM_ID3_MASK GENMASK(31, 24) + +/* UNICAM_ISTA Register */ +#define UNICAM_FSI BIT(0) +#define UNICAM_FEI BIT(1) +#define UNICAM_LCI BIT(2) + +#define UNICAM_ISTA_MASK_ALL (UNICAM_FSI | UNICAM_FEI | UNICAM_LCI) + +/* UNICAM_IPIPE Register */ +#define UNICAM_PUM_MASK GENMASK(2, 0) +/* Unpacking modes */ +#define UNICAM_PUM_NONE 0 +#define UNICAM_PUM_UNPACK6 1 +#define UNICAM_PUM_UNPACK7 2 +#define UNICAM_PUM_UNPACK8 3 +#define UNICAM_PUM_UNPACK10 4 +#define UNICAM_PUM_UNPACK12 5 +#define UNICAM_PUM_UNPACK14 6 +#define UNICAM_PUM_UNPACK16 7 +#define UNICAM_DDM_MASK GENMASK(6, 3) +#define UNICAM_PPM_MASK GENMASK(9, 7) +/* Packing modes */ +#define UNICAM_PPM_NONE 0 +#define UNICAM_PPM_PACK8 1 +#define UNICAM_PPM_PACK10 2 +#define UNICAM_PPM_PACK12 3 +#define UNICAM_PPM_PACK14 4 +#define UNICAM_PPM_PACK16 5 +#define UNICAM_DEM_MASK GENMASK(11, 10) +#define UNICAM_DEBL_MASK GENMASK(14, 12) +#define UNICAM_ICM_MASK GENMASK(16, 15) +#define UNICAM_IDM_MASK GENMASK(17, 17) + +/* UNICAM_ICC Register */ +#define UNICAM_ICFL_MASK GENMASK(4, 0) +#define UNICAM_ICFH_MASK GENMASK(9, 5) +#define UNICAM_ICST_MASK GENMASK(12, 10) +#define UNICAM_ICLT_MASK GENMASK(15, 13) +#define UNICAM_ICLL_MASK GENMASK(31, 16) + +/* UNICAM_DCS Register */ +#define UNICAM_DIE BIT(0) +#define UNICAM_DIM BIT(1) +#define UNICAM_DBOB BIT(3) +#define UNICAM_FDE BIT(4) +#define UNICAM_LDP BIT(5) +#define UNICAM_EDL_MASK GENMASK(15, 8) + +/* UNICAM_DBCTL Register */ +#define UNICAM_DBEN BIT(0) +#define UNICAM_BUF0_IE BIT(1) +#define UNICAM_BUF1_IE BIT(2) + +/* UNICAM_CMP[0,1] register */ +#define UNICAM_PCE BIT(31) +#define UNICAM_GI BIT(9) +#define UNICAM_CPH BIT(8) +#define UNICAM_PCVC_MASK GENMASK(7, 6) +#define UNICAM_PCDT_MASK GENMASK(5, 0) + +/* UNICAM_MISC register */ +#define UNICAM_FL0 BIT(6) +#define UNICAM_FL1 BIT(9) + +#endif diff --git a/drivers/media/platform/broadcom/bcm2835-unicam.c b/drivers/media/platform/broadcom/bcm2835-unicam.c new file mode 100644 index 000000000000..37cb47cfac9d --- /dev/null +++ b/drivers/media/platform/broadcom/bcm2835-unicam.c @@ -0,0 +1,2671 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * BCM283x / BCM271x Unicam Capture Driver + * + * Copyright (C) 2017-2020 - Raspberry Pi (Trading) Ltd. + * Copyright (C) 2024 - Ideas on Board + * + * Dave Stevenson + * + * Based on TI am437x driver by + * Benoit Parrot + * Lad, Prabhakar + * + * and TI CAL camera interface driver by + * Benoit Parrot + * + * + * There are two camera drivers in the kernel for BCM283x - this one and + * bcm2835-camera (currently in staging). + * + * This driver directly controls the Unicam peripheral - there is no + * involvement with the VideoCore firmware. Unicam receives CSI-2 or CCP2 data + * and writes it into SDRAM. The only potential processing options are to + * repack Bayer data into an alternate format, and applying windowing. The + * repacking does not shift the data, so can repack V4L2_PIX_FMT_Sxxxx10P to + * V4L2_PIX_FMT_Sxxxx10, or V4L2_PIX_FMT_Sxxxx12P to V4L2_PIX_FMT_Sxxxx12, but + * not generically up to V4L2_PIX_FMT_Sxxxx16. Support for windowing may be + * added later. + * + * It should be possible to connect this driver to any sensor with a suitable + * output interface and V4L2 subdevice driver. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "bcm2835-unicam-regs.h" + +#define UNICAM_MODULE_NAME "unicam" + +/* + * Unicam must request a minimum of 250Mhz from the VPU clock. + * Otherwise the input FIFOs overrun and cause image corruption. + */ +#define UNICAM_MIN_VPU_CLOCK_RATE (250 * 1000 * 1000) + +/* Unicam has an internal DMA alignment constraint of 16 bytes for each line. */ +#define UNICAM_DMA_BPL_ALIGNMENT 16 + +/* + * The image stride is stored in a 16 bit register, and needs to be aligned to + * the DMA constraint. As the ISP in the same SoC has a 32 bytes alignment + * constraint on its input, set the image stride alignment to 32 bytes here as + * well to avoid incompatible configurations. + */ +#define UNICAM_IMAGE_BPL_ALIGNMENT 32 +#define UNICAM_IMAGE_MAX_BPL ((1U << 16) - UNICAM_IMAGE_BPL_ALIGNMENT) + +/* + * Max width is therefore determined by the max stride divided by the number of + * bits per pixel. Take 32bpp as a worst case. No imposed limit on the height, + * so adopt a square image for want of anything better. + */ +#define UNICAM_IMAGE_MIN_WIDTH 16 +#define UNICAM_IMAGE_MIN_HEIGHT 16 +#define UNICAM_IMAGE_MAX_WIDTH (UNICAM_IMAGE_MAX_BPL / 4) +#define UNICAM_IMAGE_MAX_HEIGHT UNICAM_IMAGE_MAX_WIDTH + +/* + * There's no intrinsic limits on the width and height for embedded data. Use + * the same maximum values as for the image, to avoid overflows in the image + * size computation. + */ +#define UNICAM_META_MIN_WIDTH 1 +#define UNICAM_META_MIN_HEIGHT 1 +#define UNICAM_META_MAX_WIDTH UNICAM_IMAGE_MAX_WIDTH +#define UNICAM_META_MAX_HEIGHT UNICAM_IMAGE_MAX_HEIGHT + +/* + * Size of the dummy buffer. Can be any size really, but the DMA + * allocation works in units of page sizes. + */ +#define UNICAM_DUMMY_BUF_SIZE PAGE_SIZE + +enum unicam_pad { + UNICAM_SD_PAD_SINK, + UNICAM_SD_PAD_SOURCE_IMAGE, + UNICAM_SD_PAD_SOURCE_METADATA, + UNICAM_SD_NUM_PADS +}; + +enum unicam_node_type { + UNICAM_IMAGE_NODE, + UNICAM_METADATA_NODE, + UNICAM_MAX_NODES +}; + +/* + * struct unicam_format_info - Unicam media bus format information + * @fourcc: V4L2 pixel format FCC identifier. 0 if n/a. + * @unpacked_fourcc: V4L2 pixel format FCC identifier if the data is expanded + * out to 16bpp. 0 if n/a. + * @code: V4L2 media bus format code. + * @depth: Bits per pixel as delivered from the source. + * @csi_dt: CSI data type. + * @unpack: PUM value when unpacking to @unpacked_fourcc + */ +struct unicam_format_info { + u32 fourcc; + u32 unpacked_fourcc; + u32 code; + u8 depth; + u8 csi_dt; + u8 unpack; +}; + +struct unicam_buffer { + struct vb2_v4l2_buffer vb; + struct list_head list; + dma_addr_t dma_addr; + unsigned int size; +}; + +static inline struct unicam_buffer *to_unicam_buffer(struct vb2_buffer *vb) +{ + return container_of(vb, struct unicam_buffer, vb.vb2_buf); +} + +struct unicam_node { + bool registered; + bool streaming; + unsigned int id; + + /* Pointer to the current v4l2_buffer */ + struct unicam_buffer *cur_frm; + /* Pointer to the next v4l2_buffer */ + struct unicam_buffer *next_frm; + /* video capture */ + const struct unicam_format_info *fmtinfo; + /* Used to store current pixel format */ + struct v4l2_format fmt; + /* Buffer queue used in video-buf */ + struct vb2_queue buffer_queue; + /* Queue of filled frames */ + struct list_head dma_queue; + /* IRQ lock for DMA queue */ + spinlock_t dma_queue_lock; + /* Identifies video device for this channel */ + struct video_device video_dev; + /* Pointer to the parent handle */ + struct unicam_device *dev; + struct media_pad pad; + /* + * Dummy buffer intended to be used by unicam + * if we have no other queued buffers to swap to. + */ + struct unicam_buffer dummy_buf; + void *dummy_buf_cpu_addr; +}; + +struct unicam_device { + struct kref kref; + + /* peripheral base address */ + void __iomem *base; + /* clock gating base address */ + void __iomem *clk_gate_base; + /* lp clock handle */ + struct clk *clock; + /* vpu clock handle */ + struct clk *vpu_clock; + /* V4l2 device */ + struct v4l2_device v4l2_dev; + struct media_device mdev; + + /* parent device */ + struct device *dev; + /* subdevice async notifier */ + struct v4l2_async_notifier notifier; + unsigned int sequence; + + /* Sensor node */ + struct { + struct v4l2_subdev *subdev; + struct media_pad *pad; + } sensor; + + /* Internal subdev */ + struct { + struct v4l2_subdev sd; + struct media_pad pads[UNICAM_SD_NUM_PADS]; + unsigned int enabled_streams; + } subdev; + + enum v4l2_mbus_type bus_type; + /* + * Stores bus.mipi_csi2.flags for CSI2 sensors, or + * bus.mipi_csi1.strobe for CCP2. + */ + unsigned int bus_flags; + unsigned int max_data_lanes; + + struct { + struct media_pipeline pipe; + unsigned int num_data_lanes; + unsigned int nodes; + } pipe; + + /* Lock used for the video devices of both nodes */ + struct mutex lock; + struct unicam_node node[UNICAM_MAX_NODES]; +}; + +static inline struct unicam_device * +notifier_to_unicam_device(struct v4l2_async_notifier *notifier) +{ + return container_of(notifier, struct unicam_device, notifier); +} + +static inline struct unicam_device * +sd_to_unicam_device(struct v4l2_subdev *sd) +{ + return container_of(sd, struct unicam_device, subdev.sd); +} + +static void unicam_release(struct kref *kref) +{ + struct unicam_device *unicam = + container_of(kref, struct unicam_device, kref); + + if (unicam->mdev.dev) + media_device_cleanup(&unicam->mdev); + + mutex_destroy(&unicam->lock); + kfree(unicam); +} + +static struct unicam_device *unicam_get(struct unicam_device *unicam) +{ + kref_get(&unicam->kref); + + return unicam; +} + +static void unicam_put(struct unicam_device *unicam) +{ + kref_put(&unicam->kref, unicam_release); +} + +/* ----------------------------------------------------------------------------- + * Misc helper functions + */ + +static inline bool unicam_sd_pad_is_source(u32 pad) +{ + /* Camera RX has 1 sink pad, and N source pads */ + return pad != UNICAM_SD_PAD_SINK; +} + +static inline bool is_metadata_node(struct unicam_node *node) +{ + return node->video_dev.device_caps & V4L2_CAP_META_CAPTURE; +} + +static inline bool is_image_node(struct unicam_node *node) +{ + return node->video_dev.device_caps & V4L2_CAP_VIDEO_CAPTURE; +} + +/* ----------------------------------------------------------------------------- + * Format data table and helper functions + */ + +static const struct v4l2_mbus_framefmt unicam_default_image_format = { + .width = 640, + .height = 480, + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, + .ycbcr_enc = V4L2_YCBCR_ENC_601, + .quantization = V4L2_QUANTIZATION_LIM_RANGE, + .xfer_func = V4L2_XFER_FUNC_SRGB, + .flags = 0, +}; + +static const struct v4l2_mbus_framefmt unicam_default_meta_format = { + .width = 640, + .height = 2, + .code = MEDIA_BUS_FMT_META_8, + .field = V4L2_FIELD_NONE, +}; + +static const struct unicam_format_info unicam_image_formats[] = { + /* YUV Formats */ + { + .fourcc = V4L2_PIX_FMT_YUYV, + .code = MEDIA_BUS_FMT_YUYV8_1X16, + .depth = 16, + .csi_dt = 0x1e, + }, { + .fourcc = V4L2_PIX_FMT_UYVY, + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .depth = 16, + .csi_dt = 0x1e, + }, { + .fourcc = V4L2_PIX_FMT_YVYU, + .code = MEDIA_BUS_FMT_YVYU8_1X16, + .depth = 16, + .csi_dt = 0x1e, + }, { + .fourcc = V4L2_PIX_FMT_VYUY, + .code = MEDIA_BUS_FMT_VYUY8_1X16, + .depth = 16, + .csi_dt = 0x1e, + }, { + /* RGB Formats */ + .fourcc = V4L2_PIX_FMT_RGB565, /* gggbbbbb rrrrrggg */ + .code = MEDIA_BUS_FMT_RGB565_1X16, + .depth = 16, + .csi_dt = 0x22, + }, { + .fourcc = V4L2_PIX_FMT_RGB24, /* rgb */ + .code = MEDIA_BUS_FMT_RGB888_1X24, + .depth = 24, + .csi_dt = 0x24, + }, { + .fourcc = V4L2_PIX_FMT_BGR24, /* bgr */ + .code = MEDIA_BUS_FMT_BGR888_1X24, + .depth = 24, + .csi_dt = 0x24, + }, { + /* Bayer Formats */ + .fourcc = V4L2_PIX_FMT_SBGGR8, + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .depth = 8, + .csi_dt = 0x2a, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG8, + .code = MEDIA_BUS_FMT_SGBRG8_1X8, + .depth = 8, + .csi_dt = 0x2a, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG8, + .code = MEDIA_BUS_FMT_SGRBG8_1X8, + .depth = 8, + .csi_dt = 0x2a, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB8, + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .depth = 8, + .csi_dt = 0x2a, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR10P, + .unpacked_fourcc = V4L2_PIX_FMT_SBGGR10, + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .depth = 10, + .csi_dt = 0x2b, + .unpack = UNICAM_PUM_UNPACK10, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG10P, + .unpacked_fourcc = V4L2_PIX_FMT_SGBRG10, + .code = MEDIA_BUS_FMT_SGBRG10_1X10, + .depth = 10, + .csi_dt = 0x2b, + .unpack = UNICAM_PUM_UNPACK10, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG10P, + .unpacked_fourcc = V4L2_PIX_FMT_SGRBG10, + .code = MEDIA_BUS_FMT_SGRBG10_1X10, + .depth = 10, + .csi_dt = 0x2b, + .unpack = UNICAM_PUM_UNPACK10, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB10P, + .unpacked_fourcc = V4L2_PIX_FMT_SRGGB10, + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .depth = 10, + .csi_dt = 0x2b, + .unpack = UNICAM_PUM_UNPACK10, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR12P, + .unpacked_fourcc = V4L2_PIX_FMT_SBGGR12, + .code = MEDIA_BUS_FMT_SBGGR12_1X12, + .depth = 12, + .csi_dt = 0x2c, + .unpack = UNICAM_PUM_UNPACK12, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG12P, + .unpacked_fourcc = V4L2_PIX_FMT_SGBRG12, + .code = MEDIA_BUS_FMT_SGBRG12_1X12, + .depth = 12, + .csi_dt = 0x2c, + .unpack = UNICAM_PUM_UNPACK12, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG12P, + .unpacked_fourcc = V4L2_PIX_FMT_SGRBG12, + .code = MEDIA_BUS_FMT_SGRBG12_1X12, + .depth = 12, + .csi_dt = 0x2c, + .unpack = UNICAM_PUM_UNPACK12, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB12P, + .unpacked_fourcc = V4L2_PIX_FMT_SRGGB12, + .code = MEDIA_BUS_FMT_SRGGB12_1X12, + .depth = 12, + .csi_dt = 0x2c, + .unpack = UNICAM_PUM_UNPACK12, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR14P, + .unpacked_fourcc = V4L2_PIX_FMT_SBGGR14, + .code = MEDIA_BUS_FMT_SBGGR14_1X14, + .depth = 14, + .csi_dt = 0x2d, + .unpack = UNICAM_PUM_UNPACK14, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG14P, + .unpacked_fourcc = V4L2_PIX_FMT_SGBRG14, + .code = MEDIA_BUS_FMT_SGBRG14_1X14, + .depth = 14, + .csi_dt = 0x2d, + .unpack = UNICAM_PUM_UNPACK14, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG14P, + .unpacked_fourcc = V4L2_PIX_FMT_SGRBG14, + .code = MEDIA_BUS_FMT_SGRBG14_1X14, + .depth = 14, + .csi_dt = 0x2d, + .unpack = UNICAM_PUM_UNPACK14, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB14P, + .unpacked_fourcc = V4L2_PIX_FMT_SRGGB14, + .code = MEDIA_BUS_FMT_SRGGB14_1X14, + .depth = 14, + .csi_dt = 0x2d, + .unpack = UNICAM_PUM_UNPACK14, + }, { + /* 16 bit Bayer formats could be supported. */ + + /* Greyscale formats */ + .fourcc = V4L2_PIX_FMT_GREY, + .code = MEDIA_BUS_FMT_Y8_1X8, + .depth = 8, + .csi_dt = 0x2a, + }, { + .fourcc = V4L2_PIX_FMT_Y10P, + .unpacked_fourcc = V4L2_PIX_FMT_Y10, + .code = MEDIA_BUS_FMT_Y10_1X10, + .depth = 10, + .csi_dt = 0x2b, + .unpack = UNICAM_PUM_UNPACK10, + }, { + .fourcc = V4L2_PIX_FMT_Y12P, + .unpacked_fourcc = V4L2_PIX_FMT_Y12, + .code = MEDIA_BUS_FMT_Y12_1X12, + .depth = 12, + .csi_dt = 0x2c, + .unpack = UNICAM_PUM_UNPACK12, + }, { + .fourcc = V4L2_PIX_FMT_Y14P, + .unpacked_fourcc = V4L2_PIX_FMT_Y14, + .code = MEDIA_BUS_FMT_Y14_1X14, + .depth = 14, + .csi_dt = 0x2d, + .unpack = UNICAM_PUM_UNPACK14, + }, +}; + +static const struct unicam_format_info unicam_meta_formats[] = { + { + .fourcc = V4L2_META_FMT_GENERIC_8, + .code = MEDIA_BUS_FMT_META_8, + .depth = 8, + }, { + .fourcc = V4L2_META_FMT_GENERIC_CSI2_10, + .code = MEDIA_BUS_FMT_META_10, + .depth = 10, + }, { + .fourcc = V4L2_META_FMT_GENERIC_CSI2_12, + .code = MEDIA_BUS_FMT_META_12, + .depth = 12, + }, { + .fourcc = V4L2_META_FMT_GENERIC_CSI2_14, + .code = MEDIA_BUS_FMT_META_14, + .depth = 14, + }, +}; + +/* Format setup functions */ +static const struct unicam_format_info * +unicam_find_format_by_code(u32 code, u32 pad) +{ + const struct unicam_format_info *formats; + unsigned int num_formats; + unsigned int i; + + if (pad == UNICAM_SD_PAD_SOURCE_IMAGE) { + formats = unicam_image_formats; + num_formats = ARRAY_SIZE(unicam_image_formats); + } else { + formats = unicam_meta_formats; + num_formats = ARRAY_SIZE(unicam_meta_formats); + } + + for (i = 0; i < num_formats; i++) { + if (formats[i].code == code) + return &formats[i]; + } + + return NULL; +} + +static const struct unicam_format_info * +unicam_find_format_by_fourcc(u32 fourcc, u32 pad) +{ + const struct unicam_format_info *formats; + unsigned int num_formats; + unsigned int i; + + if (pad == UNICAM_SD_PAD_SOURCE_IMAGE) { + formats = unicam_image_formats; + num_formats = ARRAY_SIZE(unicam_image_formats); + } else { + formats = unicam_meta_formats; + num_formats = ARRAY_SIZE(unicam_meta_formats); + } + + for (i = 0; i < num_formats; ++i) { + if (formats[i].fourcc == fourcc) + return &formats[i]; + } + + return NULL; +} + +static void unicam_calc_image_size_bpl(struct unicam_device *unicam, + const struct unicam_format_info *fmtinfo, + struct v4l2_pix_format *pix) +{ + u32 min_bpl; + + v4l_bound_align_image(&pix->width, UNICAM_IMAGE_MIN_WIDTH, + UNICAM_IMAGE_MAX_WIDTH, 2, + &pix->height, UNICAM_IMAGE_MIN_HEIGHT, + UNICAM_IMAGE_MAX_HEIGHT, 0, 0); + + /* Unpacking always goes to 16bpp */ + if (pix->pixelformat == fmtinfo->unpacked_fourcc) + min_bpl = pix->width * 2; + else + min_bpl = pix->width * fmtinfo->depth / 8; + min_bpl = ALIGN(min_bpl, UNICAM_IMAGE_BPL_ALIGNMENT); + + pix->bytesperline = ALIGN(pix->bytesperline, UNICAM_IMAGE_BPL_ALIGNMENT); + pix->bytesperline = clamp_t(unsigned int, pix->bytesperline, min_bpl, + UNICAM_IMAGE_MAX_BPL); + + pix->sizeimage = pix->height * pix->bytesperline; +} + +static void unicam_calc_meta_size_bpl(struct unicam_device *unicam, + const struct unicam_format_info *fmtinfo, + struct v4l2_meta_format *meta) +{ + v4l_bound_align_image(&meta->width, UNICAM_META_MIN_WIDTH, + UNICAM_META_MAX_WIDTH, 0, + &meta->height, UNICAM_META_MIN_HEIGHT, + UNICAM_META_MAX_HEIGHT, 0, 0); + + meta->bytesperline = ALIGN(meta->width * fmtinfo->depth / 8, + UNICAM_DMA_BPL_ALIGNMENT); + meta->buffersize = meta->height * meta->bytesperline; +} + +/* ----------------------------------------------------------------------------- + * Hardware handling + */ + +static inline void unicam_clk_write(struct unicam_device *unicam, u32 val) +{ + /* Pass the CM_PASSWORD along with the value. */ + writel(val | 0x5a000000, unicam->clk_gate_base); +} + +static inline u32 unicam_reg_read(struct unicam_device *unicam, u32 offset) +{ + return readl(unicam->base + offset); +} + +static inline void unicam_reg_write(struct unicam_device *unicam, u32 offset, u32 val) +{ + writel(val, unicam->base + offset); +} + +static inline int unicam_get_field(u32 value, u32 mask) +{ + return (value & mask) >> __ffs(mask); +} + +static inline void unicam_set_field(u32 *valp, u32 field, u32 mask) +{ + u32 val = *valp; + + val &= ~mask; + val |= (field << __ffs(mask)) & mask; + *valp = val; +} + +static inline void unicam_reg_write_field(struct unicam_device *unicam, u32 offset, + u32 field, u32 mask) +{ + u32 val = unicam_reg_read(unicam, offset); + + unicam_set_field(&val, field, mask); + unicam_reg_write(unicam, offset, val); +} + +static void unicam_wr_dma_addr(struct unicam_node *node, + struct unicam_buffer *buf) +{ + dma_addr_t endaddr = buf->dma_addr + buf->size; + + if (node->id == UNICAM_IMAGE_NODE) { + unicam_reg_write(node->dev, UNICAM_IBSA0, buf->dma_addr); + unicam_reg_write(node->dev, UNICAM_IBEA0, endaddr); + } else { + unicam_reg_write(node->dev, UNICAM_DBSA0, buf->dma_addr); + unicam_reg_write(node->dev, UNICAM_DBEA0, endaddr); + } +} + +static unsigned int unicam_get_lines_done(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_IMAGE_NODE]; + unsigned int stride = node->fmt.fmt.pix.bytesperline; + struct unicam_buffer *frm = node->cur_frm; + dma_addr_t cur_addr; + + if (!frm) + return 0; + + cur_addr = unicam_reg_read(unicam, UNICAM_IBWP); + return (unsigned int)(cur_addr - frm->dma_addr) / stride; +} + +static void unicam_schedule_next_buffer(struct unicam_node *node) +{ + struct unicam_buffer *buf; + + buf = list_first_entry(&node->dma_queue, struct unicam_buffer, list); + node->next_frm = buf; + list_del(&buf->list); + + unicam_wr_dma_addr(node, buf); +} + +static void unicam_schedule_dummy_buffer(struct unicam_node *node) +{ + int node_id = is_image_node(node) ? UNICAM_IMAGE_NODE : UNICAM_METADATA_NODE; + + dev_dbg(node->dev->dev, "Scheduling dummy buffer for node %d\n", node_id); + + unicam_wr_dma_addr(node, &node->dummy_buf); + + node->next_frm = NULL; +} + +static void unicam_process_buffer_complete(struct unicam_node *node, + unsigned int sequence) +{ + node->cur_frm->vb.field = node->fmt.fmt.pix.field; + node->cur_frm->vb.sequence = sequence; + + vb2_buffer_done(&node->cur_frm->vb.vb2_buf, VB2_BUF_STATE_DONE); +} + +static void unicam_queue_event_sof(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_IMAGE_NODE]; + struct v4l2_event event = { + .type = V4L2_EVENT_FRAME_SYNC, + .u.frame_sync.frame_sequence = unicam->sequence, + }; + + v4l2_event_queue(&node->video_dev, &event); +} + +static irqreturn_t unicam_isr(int irq, void *dev) +{ + struct unicam_device *unicam = dev; + unsigned int lines_done = unicam_get_lines_done(dev); + unsigned int sequence = unicam->sequence; + unsigned int i; + u32 ista, sta; + bool fe; + u64 ts; + + sta = unicam_reg_read(unicam, UNICAM_STA); + /* Write value back to clear the interrupts */ + unicam_reg_write(unicam, UNICAM_STA, sta); + + ista = unicam_reg_read(unicam, UNICAM_ISTA); + /* Write value back to clear the interrupts */ + unicam_reg_write(unicam, UNICAM_ISTA, ista); + + dev_dbg(unicam->dev, "ISR: ISTA: 0x%X, STA: 0x%X, sequence %d, lines done %d\n", + ista, sta, sequence, lines_done); + + if (!(sta & (UNICAM_IS | UNICAM_PI0))) + return IRQ_HANDLED; + + /* + * Look for either the Frame End interrupt or the Packet Capture status + * to signal a frame end. + */ + fe = ista & UNICAM_FEI || sta & UNICAM_PI0; + + /* + * We must run the frame end handler first. If we have a valid next_frm + * and we get a simultaneout FE + FS interrupt, running the FS handler + * first would null out the next_frm ptr and we would have lost the + * buffer forever. + */ + if (fe) { + /* + * Ensure we have swapped buffers already as we can't + * stop the peripheral. If no buffer is available, use a + * dummy buffer to dump out frames until we get a new buffer + * to use. + */ + for (i = 0; i < ARRAY_SIZE(unicam->node); i++) { + if (!unicam->node[i].streaming) + continue; + + /* + * If cur_frm == next_frm, it means we have not had + * a chance to swap buffers, likely due to having + * multiple interrupts occurring simultaneously (like FE + * + FS + LS). In this case, we cannot signal the buffer + * as complete, as the HW will reuse that buffer. + */ + if (unicam->node[i].cur_frm && + unicam->node[i].cur_frm != unicam->node[i].next_frm) + unicam_process_buffer_complete(&unicam->node[i], + sequence); + unicam->node[i].cur_frm = unicam->node[i].next_frm; + } + unicam->sequence++; + } + + if (ista & UNICAM_FSI) { + /* + * Timestamp is to be when the first data byte was captured, + * aka frame start. + */ + ts = ktime_get_ns(); + for (i = 0; i < ARRAY_SIZE(unicam->node); i++) { + if (!unicam->node[i].streaming) + continue; + + if (unicam->node[i].cur_frm) + unicam->node[i].cur_frm->vb.vb2_buf.timestamp = + ts; + else + dev_dbg(unicam->v4l2_dev.dev, + "ISR: [%d] Dropping frame, buffer not available at FS\n", + i); + /* + * Set the next frame output to go to a dummy frame + * if we have not managed to obtain another frame + * from the queue. + */ + unicam_schedule_dummy_buffer(&unicam->node[i]); + } + + unicam_queue_event_sof(unicam); + } + + /* + * Cannot swap buffer at frame end, there may be a race condition + * where the HW does not actually swap it if the new frame has + * already started. + */ + if (ista & (UNICAM_FSI | UNICAM_LCI) && !fe) { + for (i = 0; i < ARRAY_SIZE(unicam->node); i++) { + if (!unicam->node[i].streaming) + continue; + + spin_lock(&unicam->node[i].dma_queue_lock); + if (!list_empty(&unicam->node[i].dma_queue) && + !unicam->node[i].next_frm) + unicam_schedule_next_buffer(&unicam->node[i]); + spin_unlock(&unicam->node[i].dma_queue_lock); + } + } + + if (unicam_reg_read(unicam, UNICAM_ICTL) & UNICAM_FCM) { + /* Switch out of trigger mode if selected */ + unicam_reg_write_field(unicam, UNICAM_ICTL, 1, UNICAM_TFC); + unicam_reg_write_field(unicam, UNICAM_ICTL, 0, UNICAM_FCM); + } + return IRQ_HANDLED; +} + +static void unicam_set_packing_config(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_IMAGE_NODE]; + u32 pack, unpack; + u32 val; + + if (node->fmt.fmt.pix.pixelformat == node->fmtinfo->fourcc) { + unpack = UNICAM_PUM_NONE; + pack = UNICAM_PPM_NONE; + } else { + unpack = node->fmtinfo->unpack; + /* Repacking is always to 16bpp */ + pack = UNICAM_PPM_PACK16; + } + + val = 0; + unicam_set_field(&val, unpack, UNICAM_PUM_MASK); + unicam_set_field(&val, pack, UNICAM_PPM_MASK); + unicam_reg_write(unicam, UNICAM_IPIPE, val); +} + +static void unicam_cfg_image_id(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_IMAGE_NODE]; + + if (unicam->bus_type == V4L2_MBUS_CSI2_DPHY) { + /* CSI2 mode, hardcode VC 0 for now. */ + unicam_reg_write(unicam, UNICAM_IDI0, + (0 << 6) | node->fmtinfo->csi_dt); + } else { + /* CCP2 mode */ + unicam_reg_write(unicam, UNICAM_IDI0, + 0x80 | node->fmtinfo->csi_dt); + } +} + +static void unicam_enable_ed(struct unicam_device *unicam) +{ + u32 val = unicam_reg_read(unicam, UNICAM_DCS); + + unicam_set_field(&val, 2, UNICAM_EDL_MASK); + /* Do not wrap at the end of the embedded data buffer */ + unicam_set_field(&val, 0, UNICAM_DBOB); + + unicam_reg_write(unicam, UNICAM_DCS, val); +} + +static void unicam_start_rx(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_IMAGE_NODE]; + int line_int_freq = node->fmt.fmt.pix.height >> 2; + u32 val; + + line_int_freq = max(line_int_freq, 128); + + /* + * Enable lane clocks. The register is structured as follows: + * + * [9:8] - DAT3 + * [7:6] - DAT2 + * [5:4] - DAT1 + * [3:2] - DAT0 + * [1:0] - CLK + * + * Enabled lane must be set to b01, and disabled lanes to b00. The clock + * lane is always enabled. + */ + val = 0x155 & GENMASK(unicam->pipe.num_data_lanes * 2 + 1, 0); + unicam_clk_write(unicam, val); + + /* Basic init */ + unicam_reg_write(unicam, UNICAM_CTRL, UNICAM_MEM); + + /* Enable analogue control, and leave in reset. */ + val = UNICAM_AR; + unicam_set_field(&val, 7, UNICAM_CTATADJ_MASK); + unicam_set_field(&val, 7, UNICAM_PTATADJ_MASK); + unicam_reg_write(unicam, UNICAM_ANA, val); + usleep_range(1000, 2000); + + /* Come out of reset */ + unicam_reg_write_field(unicam, UNICAM_ANA, 0, UNICAM_AR); + + /* Peripheral reset */ + unicam_reg_write_field(unicam, UNICAM_CTRL, 1, UNICAM_CPR); + unicam_reg_write_field(unicam, UNICAM_CTRL, 0, UNICAM_CPR); + + unicam_reg_write_field(unicam, UNICAM_CTRL, 0, UNICAM_CPE); + + /* Enable Rx control. */ + val = unicam_reg_read(unicam, UNICAM_CTRL); + if (unicam->bus_type == V4L2_MBUS_CSI2_DPHY) { + unicam_set_field(&val, UNICAM_CPM_CSI2, UNICAM_CPM_MASK); + unicam_set_field(&val, UNICAM_DCM_STROBE, UNICAM_DCM_MASK); + } else { + unicam_set_field(&val, UNICAM_CPM_CCP2, UNICAM_CPM_MASK); + unicam_set_field(&val, unicam->bus_flags, UNICAM_DCM_MASK); + } + /* Packet framer timeout */ + unicam_set_field(&val, 0xf, UNICAM_PFT_MASK); + unicam_set_field(&val, 128, UNICAM_OET_MASK); + unicam_reg_write(unicam, UNICAM_CTRL, val); + + unicam_reg_write(unicam, UNICAM_IHWIN, 0); + unicam_reg_write(unicam, UNICAM_IVWIN, 0); + + /* AXI bus access QoS setup */ + val = unicam_reg_read(unicam, UNICAM_PRI); + unicam_set_field(&val, 0, UNICAM_BL_MASK); + unicam_set_field(&val, 0, UNICAM_BS_MASK); + unicam_set_field(&val, 0xe, UNICAM_PP_MASK); + unicam_set_field(&val, 8, UNICAM_NP_MASK); + unicam_set_field(&val, 2, UNICAM_PT_MASK); + unicam_set_field(&val, 1, UNICAM_PE); + unicam_reg_write(unicam, UNICAM_PRI, val); + + unicam_reg_write_field(unicam, UNICAM_ANA, 0, UNICAM_DDL); + + /* Always start in trigger frame capture mode (UNICAM_FCM set) */ + val = UNICAM_FSIE | UNICAM_FEIE | UNICAM_FCM | UNICAM_IBOB; + unicam_set_field(&val, line_int_freq, UNICAM_LCIE_MASK); + unicam_reg_write(unicam, UNICAM_ICTL, val); + unicam_reg_write(unicam, UNICAM_STA, UNICAM_STA_MASK_ALL); + unicam_reg_write(unicam, UNICAM_ISTA, UNICAM_ISTA_MASK_ALL); + + /* tclk_term_en */ + unicam_reg_write_field(unicam, UNICAM_CLT, 2, UNICAM_CLT1_MASK); + /* tclk_settle */ + unicam_reg_write_field(unicam, UNICAM_CLT, 6, UNICAM_CLT2_MASK); + /* td_term_en */ + unicam_reg_write_field(unicam, UNICAM_DLT, 2, UNICAM_DLT1_MASK); + /* ths_settle */ + unicam_reg_write_field(unicam, UNICAM_DLT, 6, UNICAM_DLT2_MASK); + /* trx_enable */ + unicam_reg_write_field(unicam, UNICAM_DLT, 0, UNICAM_DLT3_MASK); + + unicam_reg_write_field(unicam, UNICAM_CTRL, 0, UNICAM_SOE); + + /* Packet compare setup - required to avoid missing frame ends */ + val = 0; + unicam_set_field(&val, 1, UNICAM_PCE); + unicam_set_field(&val, 1, UNICAM_GI); + unicam_set_field(&val, 1, UNICAM_CPH); + unicam_set_field(&val, 0, UNICAM_PCVC_MASK); + unicam_set_field(&val, 1, UNICAM_PCDT_MASK); + unicam_reg_write(unicam, UNICAM_CMP0, val); + + /* Enable clock lane and set up terminations */ + val = 0; + if (unicam->bus_type == V4L2_MBUS_CSI2_DPHY) { + /* CSI2 */ + unicam_set_field(&val, 1, UNICAM_CLE); + unicam_set_field(&val, 1, UNICAM_CLLPE); + if (!(unicam->bus_flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)) { + unicam_set_field(&val, 1, UNICAM_CLTRE); + unicam_set_field(&val, 1, UNICAM_CLHSE); + } + } else { + /* CCP2 */ + unicam_set_field(&val, 1, UNICAM_CLE); + unicam_set_field(&val, 1, UNICAM_CLHSE); + unicam_set_field(&val, 1, UNICAM_CLTRE); + } + unicam_reg_write(unicam, UNICAM_CLK, val); + + /* + * Enable required data lanes with appropriate terminations. + * The same value needs to be written to UNICAM_DATn registers for + * the active lanes, and 0 for inactive ones. + */ + val = 0; + if (unicam->bus_type == V4L2_MBUS_CSI2_DPHY) { + /* CSI2 */ + unicam_set_field(&val, 1, UNICAM_DLE); + unicam_set_field(&val, 1, UNICAM_DLLPE); + if (!(unicam->bus_flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK)) { + unicam_set_field(&val, 1, UNICAM_DLTRE); + unicam_set_field(&val, 1, UNICAM_DLHSE); + } + } else { + /* CCP2 */ + unicam_set_field(&val, 1, UNICAM_DLE); + unicam_set_field(&val, 1, UNICAM_DLHSE); + unicam_set_field(&val, 1, UNICAM_DLTRE); + } + unicam_reg_write(unicam, UNICAM_DAT0, val); + + if (unicam->pipe.num_data_lanes == 1) + val = 0; + unicam_reg_write(unicam, UNICAM_DAT1, val); + + if (unicam->max_data_lanes > 2) { + /* + * Registers UNICAM_DAT2 and UNICAM_DAT3 only valid if the + * instance supports more than 2 data lanes. + */ + if (unicam->pipe.num_data_lanes == 2) + val = 0; + unicam_reg_write(unicam, UNICAM_DAT2, val); + + if (unicam->pipe.num_data_lanes == 3) + val = 0; + unicam_reg_write(unicam, UNICAM_DAT3, val); + } + + unicam_reg_write(unicam, UNICAM_IBLS, + node->fmt.fmt.pix.bytesperline); + unicam_wr_dma_addr(node, node->cur_frm); + unicam_set_packing_config(unicam); + unicam_cfg_image_id(unicam); + + val = unicam_reg_read(unicam, UNICAM_MISC); + unicam_set_field(&val, 1, UNICAM_FL0); + unicam_set_field(&val, 1, UNICAM_FL1); + unicam_reg_write(unicam, UNICAM_MISC, val); + + /* Enable peripheral */ + unicam_reg_write_field(unicam, UNICAM_CTRL, 1, UNICAM_CPE); + + /* Load image pointers */ + unicam_reg_write_field(unicam, UNICAM_ICTL, 1, UNICAM_LIP_MASK); + + /* + * Enable trigger only for the first frame to + * sync correctly to the FS from the source. + */ + unicam_reg_write_field(unicam, UNICAM_ICTL, 1, UNICAM_TFC); +} + +static void unicam_start_metadata(struct unicam_device *unicam) +{ + struct unicam_node *node = &unicam->node[UNICAM_METADATA_NODE]; + + unicam_enable_ed(unicam); + unicam_wr_dma_addr(node, node->cur_frm); + unicam_reg_write_field(unicam, UNICAM_DCS, 1, UNICAM_LDP); +} + +static void unicam_disable(struct unicam_device *unicam) +{ + /* Analogue lane control disable */ + unicam_reg_write_field(unicam, UNICAM_ANA, 1, UNICAM_DDL); + + /* Stop the output engine */ + unicam_reg_write_field(unicam, UNICAM_CTRL, 1, UNICAM_SOE); + + /* Disable the data lanes. */ + unicam_reg_write(unicam, UNICAM_DAT0, 0); + unicam_reg_write(unicam, UNICAM_DAT1, 0); + + if (unicam->max_data_lanes > 2) { + unicam_reg_write(unicam, UNICAM_DAT2, 0); + unicam_reg_write(unicam, UNICAM_DAT3, 0); + } + + /* Peripheral reset */ + unicam_reg_write_field(unicam, UNICAM_CTRL, 1, UNICAM_CPR); + usleep_range(50, 100); + unicam_reg_write_field(unicam, UNICAM_CTRL, 0, UNICAM_CPR); + + /* Disable peripheral */ + unicam_reg_write_field(unicam, UNICAM_CTRL, 0, UNICAM_CPE); + + /* Clear ED setup */ + unicam_reg_write(unicam, UNICAM_DCS, 0); + + /* Disable all lane clocks */ + unicam_clk_write(unicam, 0); +} + +/* ----------------------------------------------------------------------------- + * V4L2 subdev operations + */ + +static int __unicam_subdev_set_routing(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_krouting *routing) +{ + struct v4l2_subdev_route *route; + int ret; + + ret = v4l2_subdev_routing_validate(sd, routing, + V4L2_SUBDEV_ROUTING_ONLY_1_TO_1); + if (ret) + return ret; + + ret = v4l2_subdev_set_routing(sd, state, routing); + if (ret) + return ret; + + for_each_active_route(&state->routing, route) { + const struct v4l2_mbus_framefmt *def_fmt; + struct v4l2_mbus_framefmt *fmt; + + if (route->source_pad == UNICAM_SD_PAD_SOURCE_IMAGE) + def_fmt = &unicam_default_image_format; + else + def_fmt = &unicam_default_meta_format; + + fmt = v4l2_subdev_state_get_format(state, route->sink_pad, + route->sink_stream); + *fmt = *def_fmt; + fmt = v4l2_subdev_state_get_format(state, route->source_pad, + route->source_stream); + *fmt = *def_fmt; + } + + return 0; +} + +static int unicam_subdev_init_state(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_route routes[] = { + { + .sink_pad = UNICAM_SD_PAD_SINK, + .sink_stream = 0, + .source_pad = UNICAM_SD_PAD_SOURCE_IMAGE, + .source_stream = 0, + .flags = V4L2_SUBDEV_ROUTE_FL_ACTIVE, + }, + }; + + struct v4l2_subdev_krouting routing = { + .len_routes = ARRAY_SIZE(routes), + .num_routes = ARRAY_SIZE(routes), + .routes = routes, + }; + + /* Initialize routing to single route to the fist source pad. */ + return __unicam_subdev_set_routing(sd, state, &routing); +} + +static int unicam_subdev_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_mbus_code_enum *code) +{ + u32 pad, stream; + int ret; + + ret = v4l2_subdev_routing_find_opposite_end(&state->routing, + code->pad, code->stream, + &pad, &stream); + if (ret) + return ret; + + if (unicam_sd_pad_is_source(code->pad)) { + /* No transcoding, source and sink codes must match. */ + const struct v4l2_mbus_framefmt *fmt; + + fmt = v4l2_subdev_state_get_format(state, pad, stream); + if (!fmt) + return -EINVAL; + + if (code->index > 0) + return -EINVAL; + + code->code = fmt->code; + } else { + const struct unicam_format_info *formats; + unsigned int num_formats; + + if (pad == UNICAM_SD_PAD_SOURCE_IMAGE) { + formats = unicam_image_formats; + num_formats = ARRAY_SIZE(unicam_image_formats); + } else { + formats = unicam_meta_formats; + num_formats = ARRAY_SIZE(unicam_meta_formats); + } + + if (code->index >= num_formats) + return -EINVAL; + + code->code = formats[code->index].code; + } + + return 0; +} + +static int unicam_subdev_enum_frame_size(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_frame_size_enum *fse) +{ + u32 pad, stream; + int ret; + + if (fse->index > 0) + return -EINVAL; + + ret = v4l2_subdev_routing_find_opposite_end(&state->routing, fse->pad, + fse->stream, &pad, + &stream); + if (ret) + return ret; + + if (unicam_sd_pad_is_source(fse->pad)) { + /* No transcoding, source and sink formats must match. */ + const struct v4l2_mbus_framefmt *fmt; + + fmt = v4l2_subdev_state_get_format(state, pad, stream); + if (!fmt) + return -EINVAL; + + if (fse->code != fmt->code) + return -EINVAL; + + fse->min_width = fmt->width; + fse->max_width = fmt->width; + fse->min_height = fmt->height; + fse->max_height = fmt->height; + } else { + const struct unicam_format_info *fmtinfo; + + fmtinfo = unicam_find_format_by_code(fse->code, pad); + if (!fmtinfo) + return -EINVAL; + + if (pad == UNICAM_SD_PAD_SOURCE_IMAGE) { + fse->min_width = UNICAM_IMAGE_MIN_WIDTH; + fse->max_width = UNICAM_IMAGE_MAX_WIDTH; + fse->min_height = UNICAM_IMAGE_MIN_HEIGHT; + fse->max_height = UNICAM_IMAGE_MAX_HEIGHT; + } else { + fse->min_width = UNICAM_META_MIN_WIDTH; + fse->max_width = UNICAM_META_MAX_WIDTH; + fse->min_height = UNICAM_META_MIN_HEIGHT; + fse->max_height = UNICAM_META_MAX_HEIGHT; + } + } + + return 0; +} + +static int unicam_subdev_set_format(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct unicam_device *unicam = sd_to_unicam_device(sd); + struct v4l2_mbus_framefmt *sink_format, *source_format; + const struct unicam_format_info *fmtinfo; + u32 source_pad, source_stream; + int ret; + + if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE && + unicam->subdev.enabled_streams) + return -EBUSY; + + /* No transcoding, source and sink formats must match. */ + if (unicam_sd_pad_is_source(format->pad)) + return v4l2_subdev_get_fmt(sd, state, format); + + /* + * Allowed formats for the stream on the sink pad depend on what source + * pad the stream is routed to. Find the corresponding source pad and + * use it to validate the media bus code. + */ + ret = v4l2_subdev_routing_find_opposite_end(&state->routing, + format->pad, format->stream, + &source_pad, &source_stream); + if (ret) + return ret; + + fmtinfo = unicam_find_format_by_code(format->format.code, source_pad); + if (!fmtinfo) { + fmtinfo = source_pad == UNICAM_SD_PAD_SOURCE_IMAGE + ? &unicam_image_formats[0] : &unicam_meta_formats[0]; + format->format.code = fmtinfo->code; + } + + if (source_pad == UNICAM_SD_PAD_SOURCE_IMAGE) { + format->format.width = clamp_t(unsigned int, + format->format.width, + UNICAM_IMAGE_MIN_WIDTH, + UNICAM_IMAGE_MAX_WIDTH); + format->format.height = clamp_t(unsigned int, + format->format.height, + UNICAM_IMAGE_MIN_HEIGHT, + UNICAM_IMAGE_MAX_HEIGHT); + format->format.field = V4L2_FIELD_NONE; + } else { + format->format.width = clamp_t(unsigned int, + format->format.width, + UNICAM_META_MIN_WIDTH, + UNICAM_META_MAX_WIDTH); + format->format.height = clamp_t(unsigned int, + format->format.height, + UNICAM_META_MIN_HEIGHT, + UNICAM_META_MAX_HEIGHT); + format->format.field = V4L2_FIELD_NONE; + + /* Colorspace don't apply to metadata. */ + format->format.colorspace = 0; + format->format.ycbcr_enc = 0; + format->format.quantization = 0; + format->format.xfer_func = 0; + } + + sink_format = v4l2_subdev_state_get_format(state, format->pad, + format->stream); + source_format = v4l2_subdev_state_get_format(state, source_pad, + source_stream); + *sink_format = format->format; + *source_format = format->format; + + return 0; +} + +static int unicam_subdev_set_routing(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, + enum v4l2_subdev_format_whence which, + struct v4l2_subdev_krouting *routing) +{ + struct unicam_device *unicam = sd_to_unicam_device(sd); + + if (which == V4L2_SUBDEV_FORMAT_ACTIVE && unicam->subdev.enabled_streams) + return -EBUSY; + + return __unicam_subdev_set_routing(sd, state, routing); +} + +static int unicam_sd_enable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct unicam_device *unicam = sd_to_unicam_device(sd); + u32 other_pad, other_stream; + int ret; + + ret = v4l2_subdev_routing_find_opposite_end(&state->routing, pad, 0, + &other_pad, &other_stream); + if (ret) + return ret; + + ret = v4l2_subdev_enable_streams(unicam->sensor.subdev, + unicam->sensor.pad->index, + BIT(other_stream)); + if (ret) { + dev_err(unicam->dev, "stream on failed in subdev\n"); + return ret; + } + + unicam->subdev.enabled_streams |= BIT(other_stream); + + return 0; +} + +static int unicam_sd_disable_streams(struct v4l2_subdev *sd, + struct v4l2_subdev_state *state, u32 pad, + u64 streams_mask) +{ + struct unicam_device *unicam = sd_to_unicam_device(sd); + u32 other_pad, other_stream; + int ret; + + ret = v4l2_subdev_routing_find_opposite_end(&state->routing, pad, 0, + &other_pad, &other_stream); + if (ret) + return ret; + + v4l2_subdev_disable_streams(unicam->sensor.subdev, + unicam->sensor.pad->index, + BIT(other_stream)); + + unicam->subdev.enabled_streams &= ~BIT(other_stream); + + return 0; +} + +static const struct v4l2_subdev_pad_ops unicam_subdev_pad_ops = { + .enum_mbus_code = unicam_subdev_enum_mbus_code, + .enum_frame_size = unicam_subdev_enum_frame_size, + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = unicam_subdev_set_format, + .set_routing = unicam_subdev_set_routing, + .enable_streams = unicam_sd_enable_streams, + .disable_streams = unicam_sd_disable_streams, +}; + +static const struct v4l2_subdev_ops unicam_subdev_ops = { + .pad = &unicam_subdev_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops unicam_subdev_internal_ops = { + .init_state = unicam_subdev_init_state, +}; + +static const struct media_entity_operations unicam_subdev_media_ops = { + .link_validate = v4l2_subdev_link_validate, + .has_pad_interdep = v4l2_subdev_has_pad_interdep, +}; + +static int unicam_subdev_init(struct unicam_device *unicam) +{ + struct v4l2_subdev *sd = &unicam->subdev.sd; + int ret; + + v4l2_subdev_init(sd, &unicam_subdev_ops); + sd->internal_ops = &unicam_subdev_internal_ops; + v4l2_set_subdevdata(sd, unicam); + + sd->entity.function = MEDIA_ENT_F_VID_IF_BRIDGE; + sd->entity.ops = &unicam_subdev_media_ops; + sd->dev = unicam->dev; + sd->owner = THIS_MODULE; + sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_STREAMS; + + strscpy(sd->name, "unicam", sizeof(sd->name)); + + unicam->subdev.pads[UNICAM_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK; + unicam->subdev.pads[UNICAM_SD_PAD_SOURCE_IMAGE].flags = MEDIA_PAD_FL_SOURCE; + unicam->subdev.pads[UNICAM_SD_PAD_SOURCE_METADATA].flags = MEDIA_PAD_FL_SOURCE; + + ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(unicam->subdev.pads), + unicam->subdev.pads); + if (ret) { + dev_err(unicam->dev, "Failed to initialize media entity: %d\n", + ret); + return ret; + } + + ret = v4l2_subdev_init_finalize(sd); + if (ret) { + dev_err(unicam->dev, "Failed to initialize subdev: %d\n", ret); + goto err_entity; + } + + ret = v4l2_device_register_subdev(&unicam->v4l2_dev, sd); + if (ret) { + dev_err(unicam->dev, "Failed to register subdev: %d\n", ret); + goto err_subdev; + } + + return 0; + +err_subdev: + v4l2_subdev_cleanup(sd); +err_entity: + media_entity_cleanup(&sd->entity); + return ret; +} + +static void unicam_subdev_cleanup(struct unicam_device *unicam) +{ + v4l2_subdev_cleanup(&unicam->subdev.sd); + media_entity_cleanup(&unicam->subdev.sd.entity); +} + +/* ----------------------------------------------------------------------------- + * Videobuf2 queue operations + */ + +static int unicam_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct unicam_node *node = vb2_get_drv_priv(vq); + u32 size = is_image_node(node) ? node->fmt.fmt.pix.sizeimage + : node->fmt.fmt.meta.buffersize; + + if (*nplanes) { + if (sizes[0] < size) { + dev_dbg(node->dev->dev, "sizes[0] %i < size %u\n", + sizes[0], size); + return -EINVAL; + } + size = sizes[0]; + } + + *nplanes = 1; + sizes[0] = size; + + return 0; +} + +static int unicam_buffer_prepare(struct vb2_buffer *vb) +{ + struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue); + struct unicam_buffer *buf = to_unicam_buffer(vb); + u32 size = is_image_node(node) ? node->fmt.fmt.pix.sizeimage + : node->fmt.fmt.meta.buffersize; + + if (vb2_plane_size(vb, 0) < size) { + dev_dbg(node->dev->dev, + "data will not fit into plane (%lu < %u)\n", + vb2_plane_size(vb, 0), size); + return -EINVAL; + } + + buf->dma_addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0); + buf->size = size; + + vb2_set_plane_payload(&buf->vb.vb2_buf, 0, size); + + return 0; +} + +static void unicam_return_buffers(struct unicam_node *node, + enum vb2_buffer_state state) +{ + struct unicam_buffer *buf, *tmp; + + list_for_each_entry_safe(buf, tmp, &node->dma_queue, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, state); + } + + if (node->cur_frm) + vb2_buffer_done(&node->cur_frm->vb.vb2_buf, + state); + if (node->next_frm && node->cur_frm != node->next_frm) + vb2_buffer_done(&node->next_frm->vb.vb2_buf, + state); + + node->cur_frm = NULL; + node->next_frm = NULL; +} + +static int unicam_num_data_lanes(struct unicam_device *unicam) +{ + struct v4l2_mbus_config mbus_config = { 0 }; + unsigned int num_data_lanes; + int ret; + + if (unicam->bus_type != V4L2_MBUS_CSI2_DPHY) + return unicam->max_data_lanes; + + ret = v4l2_subdev_call(unicam->sensor.subdev, pad, get_mbus_config, + unicam->sensor.pad->index, &mbus_config); + if (ret == -ENOIOCTLCMD) + return unicam->max_data_lanes; + + if (ret < 0) { + dev_err(unicam->dev, "Failed to get mbus config: %d\n", ret); + return ret; + } + + num_data_lanes = mbus_config.bus.mipi_csi2.num_data_lanes; + + if (num_data_lanes != 1 && num_data_lanes != 2 && num_data_lanes != 4) { + dev_err(unicam->dev, + "Device %s has requested %u data lanes, invalid\n", + unicam->sensor.subdev->name, num_data_lanes); + return -EINVAL; + } + + if (num_data_lanes > unicam->max_data_lanes) { + dev_err(unicam->dev, + "Device %s has requested %u data lanes, >%u configured in DT\n", + unicam->sensor.subdev->name, num_data_lanes, + unicam->max_data_lanes); + return -EINVAL; + } + + return num_data_lanes; +} + +static int unicam_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct unicam_node *node = vb2_get_drv_priv(vq); + struct unicam_device *unicam = node->dev; + struct unicam_buffer *buf; + struct media_pipeline_pad_iter iter; + struct media_pad *pad; + unsigned long flags; + int ret; + + dev_dbg(unicam->dev, "Starting stream on %s device\n", + is_metadata_node(node) ? "metadata" : "image"); + + /* + * Start the pipeline. This validates all links, and populates the + * pipeline structure. + */ + ret = video_device_pipeline_start(&node->video_dev, &unicam->pipe.pipe); + if (ret < 0) { + dev_dbg(unicam->dev, "Failed to start media pipeline: %d\n", ret); + goto err_buffers; + } + + /* + * Determine which video nodes are included in the pipeline, and get the + * number of data lanes. + */ + if (unicam->pipe.pipe.start_count == 1) { + unicam->pipe.nodes = 0; + + media_pipeline_for_each_pad(&unicam->pipe.pipe, &iter, pad) { + if (pad->entity != &unicam->subdev.sd.entity) + continue; + + if (pad->index == UNICAM_SD_PAD_SOURCE_IMAGE) + unicam->pipe.nodes |= BIT(UNICAM_IMAGE_NODE); + else if (pad->index == UNICAM_SD_PAD_SOURCE_METADATA) + unicam->pipe.nodes |= BIT(UNICAM_METADATA_NODE); + } + + if (!(unicam->pipe.nodes & BIT(UNICAM_IMAGE_NODE))) { + dev_dbg(unicam->dev, + "Pipeline does not include image node\n"); + ret = -EPIPE; + goto err_pipeline; + } + + ret = unicam_num_data_lanes(unicam); + if (ret < 0) + goto err_pipeline; + + unicam->pipe.num_data_lanes = ret; + + dev_dbg(unicam->dev, "Running with %u data lanes, nodes %u\n", + unicam->pipe.num_data_lanes, unicam->pipe.nodes); + } + + node->streaming = true; + + /* Arm the node with the first buffer from the DMA queue. */ + spin_lock_irqsave(&node->dma_queue_lock, flags); + buf = list_first_entry(&node->dma_queue, struct unicam_buffer, list); + node->cur_frm = buf; + node->next_frm = buf; + list_del(&buf->list); + spin_unlock_irqrestore(&node->dma_queue_lock, flags); + + /* + * Wait for all the video devices in the pipeline to have been started + * before starting the hardware. In the general case, this would + * prevent capturing multiple streams independently. However, the + * Unicam DMA engines are not generic, they have been designed to + * capture image data and embedded data from the same camera sensor. + * Not only does the main use case not benefit from independent + * capture, it requires proper synchronization of the streams at start + * time. + */ + if (unicam->pipe.pipe.start_count < hweight32(unicam->pipe.nodes)) + return 0; + + /* Configure and start Unicam. */ + ret = pm_runtime_resume_and_get(unicam->dev); + if (ret < 0) { + dev_err(unicam->dev, "PM runtime resume failed: %d\n", ret); + goto err_pipeline; + } + + unicam->sequence = 0; + + if (unicam->pipe.nodes & BIT(UNICAM_METADATA_NODE)) + unicam_start_metadata(unicam); + + unicam_start_rx(unicam); + + /* Enable the streams on the source. */ + ret = v4l2_subdev_enable_streams(&unicam->subdev.sd, + UNICAM_SD_PAD_SOURCE_IMAGE, + BIT(0)); + if (ret < 0) { + dev_err(unicam->dev, "stream on failed in subdev\n"); + goto err_pm_put; + } + + if (unicam->pipe.nodes & BIT(UNICAM_METADATA_NODE)) { + ret = v4l2_subdev_enable_streams(&unicam->subdev.sd, + UNICAM_SD_PAD_SOURCE_METADATA, + BIT(0)); + if (ret < 0) { + dev_err(unicam->dev, "stream on failed in subdev\n"); + goto err_pm_put; + } + } + + return 0; + +err_pm_put: + pm_runtime_put_sync(unicam->dev); +err_pipeline: + video_device_pipeline_stop(&node->video_dev); +err_buffers: + unicam_return_buffers(node, VB2_BUF_STATE_QUEUED); + node->streaming = false; + return ret; +} + +static void unicam_stop_streaming(struct vb2_queue *vq) +{ + struct unicam_node *node = vb2_get_drv_priv(vq); + struct unicam_device *unicam = node->dev; + + /* Stop the hardware when the first video device gets stopped. */ + if (unicam->pipe.pipe.start_count == hweight32(unicam->pipe.nodes)) { + if (unicam->pipe.nodes & BIT(UNICAM_METADATA_NODE)) + v4l2_subdev_disable_streams(&unicam->subdev.sd, + UNICAM_SD_PAD_SOURCE_METADATA, + BIT(0)); + + v4l2_subdev_disable_streams(&unicam->subdev.sd, + UNICAM_SD_PAD_SOURCE_IMAGE, + BIT(0)); + + unicam_disable(unicam); + + pm_runtime_put(unicam->dev); + } + + node->streaming = false; + + video_device_pipeline_stop(&node->video_dev); + + /* Clear all queued buffers for the node */ + unicam_return_buffers(node, VB2_BUF_STATE_ERROR); +} + +static void unicam_buffer_queue(struct vb2_buffer *vb) +{ + struct unicam_node *node = vb2_get_drv_priv(vb->vb2_queue); + struct unicam_buffer *buf = to_unicam_buffer(vb); + + spin_lock_irq(&node->dma_queue_lock); + list_add_tail(&buf->list, &node->dma_queue); + spin_unlock_irq(&node->dma_queue_lock); +} + +static const struct vb2_ops unicam_video_qops = { + .queue_setup = unicam_queue_setup, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, + .buf_prepare = unicam_buffer_prepare, + .start_streaming = unicam_start_streaming, + .stop_streaming = unicam_stop_streaming, + .buf_queue = unicam_buffer_queue, +}; + +/* ----------------------------------------------------------------------------- + * V4L2 video device operations + */ + +static int unicam_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, UNICAM_MODULE_NAME, sizeof(cap->driver)); + strscpy(cap->card, UNICAM_MODULE_NAME, sizeof(cap->card)); + + cap->capabilities |= V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_META_CAPTURE; + + return 0; +} + +static int unicam_enum_fmt_vid(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + unsigned int index; + unsigned int i; + + for (i = 0, index = 0; i < ARRAY_SIZE(unicam_image_formats); i++) { + if (f->mbus_code && unicam_image_formats[i].code != f->mbus_code) + continue; + + if (index == f->index) { + f->pixelformat = unicam_image_formats[i].fourcc; + return 0; + } + + index++; + + if (!unicam_image_formats[i].unpacked_fourcc) + continue; + + if (index == f->index) { + f->pixelformat = unicam_image_formats[i].unpacked_fourcc; + return 0; + } + + index++; + } + + return -EINVAL; +} + +static int unicam_g_fmt_vid(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + *f = node->fmt; + + return 0; +} + +static const struct unicam_format_info * +__unicam_try_fmt_vid(struct unicam_node *node, struct v4l2_pix_format *pix) +{ + const struct unicam_format_info *fmtinfo; + + /* + * Default to the first format if the requested pixel format code isn't + * supported. + */ + fmtinfo = unicam_find_format_by_fourcc(pix->pixelformat, + UNICAM_SD_PAD_SOURCE_IMAGE); + if (!fmtinfo) { + fmtinfo = &unicam_image_formats[0]; + pix->pixelformat = fmtinfo->fourcc; + } + + unicam_calc_image_size_bpl(node->dev, fmtinfo, pix); + + if (pix->field == V4L2_FIELD_ANY) + pix->field = V4L2_FIELD_NONE; + + return fmtinfo; +} + +static int unicam_try_fmt_vid(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + __unicam_try_fmt_vid(node, &f->fmt.pix); + return 0; +} + +static int unicam_s_fmt_vid(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + if (vb2_is_busy(&node->buffer_queue)) + return -EBUSY; + + node->fmtinfo = __unicam_try_fmt_vid(node, &f->fmt.pix); + node->fmt = *f; + + return 0; +} + +static int unicam_enum_fmt_meta(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + unsigned int i, index; + + for (i = 0, index = 0; i < ARRAY_SIZE(unicam_meta_formats); i++) { + if (f->mbus_code && unicam_meta_formats[i].code != f->mbus_code) + continue; + + if (index == f->index) { + f->pixelformat = unicam_meta_formats[i].fourcc; + f->type = V4L2_BUF_TYPE_META_CAPTURE; + f->flags = V4L2_FMT_FLAG_META_LINE_BASED; + return 0; + } + + index++; + } + + return -EINVAL; +} + +static int unicam_g_fmt_meta(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + f->fmt.meta = node->fmt.fmt.meta; + + return 0; +} + +static const struct unicam_format_info * +__unicam_try_fmt_meta(struct unicam_node *node, struct v4l2_meta_format *meta) +{ + const struct unicam_format_info *fmtinfo; + + /* + * Default to the first format if the requested pixel format code isn't + * supported. + */ + fmtinfo = unicam_find_format_by_fourcc(meta->dataformat, + UNICAM_SD_PAD_SOURCE_METADATA); + if (!fmtinfo) { + fmtinfo = &unicam_meta_formats[0]; + meta->dataformat = fmtinfo->fourcc; + } + + unicam_calc_meta_size_bpl(node->dev, fmtinfo, meta); + + return fmtinfo; +} + +static int unicam_try_fmt_meta(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + __unicam_try_fmt_vid(node, &f->fmt.pix); + return 0; +} + +static int unicam_s_fmt_meta(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct unicam_node *node = video_drvdata(file); + + if (vb2_is_busy(&node->buffer_queue)) + return -EBUSY; + + node->fmtinfo = __unicam_try_fmt_meta(node, &f->fmt.meta); + node->fmt = *f; + + return 0; +} + +static int unicam_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + struct unicam_node *node = video_drvdata(file); + int ret = -EINVAL; + + if (fsize->index > 0) + return ret; + + if (is_image_node(node)) { + if (!unicam_find_format_by_fourcc(fsize->pixel_format, + UNICAM_SD_PAD_SOURCE_IMAGE)) + return ret; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = UNICAM_IMAGE_MIN_WIDTH; + fsize->stepwise.max_width = UNICAM_IMAGE_MAX_WIDTH; + fsize->stepwise.step_width = 1; + fsize->stepwise.min_height = UNICAM_IMAGE_MIN_HEIGHT; + fsize->stepwise.max_height = UNICAM_IMAGE_MAX_HEIGHT; + fsize->stepwise.step_height = 1; + } else { + if (!unicam_find_format_by_fourcc(fsize->pixel_format, + UNICAM_SD_PAD_SOURCE_METADATA)) + return ret; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = UNICAM_META_MIN_WIDTH; + fsize->stepwise.max_width = UNICAM_META_MAX_WIDTH; + fsize->stepwise.step_width = 1; + fsize->stepwise.min_height = UNICAM_META_MIN_HEIGHT; + fsize->stepwise.max_height = UNICAM_META_MAX_HEIGHT; + fsize->stepwise.step_height = 1; + } + + return 0; +} + +static int unicam_log_status(struct file *file, void *fh) +{ + struct unicam_node *node = video_drvdata(file); + struct unicam_device *unicam = node->dev; + u32 reg; + + /* status for sub devices */ + v4l2_device_call_all(&unicam->v4l2_dev, 0, core, log_status); + + dev_info(unicam->dev, "-----Receiver status-----\n"); + dev_info(unicam->dev, "V4L2 width/height: %ux%u\n", + node->fmt.fmt.pix.width, node->fmt.fmt.pix.height); + dev_info(unicam->dev, "Mediabus format: %08x\n", + node->fmtinfo->code); + dev_info(unicam->dev, "V4L2 format: %08x\n", + node->fmt.fmt.pix.pixelformat); + reg = unicam_reg_read(unicam, UNICAM_IPIPE); + dev_info(unicam->dev, "Unpacking/packing: %u / %u\n", + unicam_get_field(reg, UNICAM_PUM_MASK), + unicam_get_field(reg, UNICAM_PPM_MASK)); + dev_info(unicam->dev, "----Live data----\n"); + dev_info(unicam->dev, "Programmed stride: %4u\n", + unicam_reg_read(unicam, UNICAM_IBLS)); + dev_info(unicam->dev, "Detected resolution: %ux%u\n", + unicam_reg_read(unicam, UNICAM_IHSTA), + unicam_reg_read(unicam, UNICAM_IVSTA)); + dev_info(unicam->dev, "Write pointer: %08x\n", + unicam_reg_read(unicam, UNICAM_IBWP)); + + return 0; +} + +static int unicam_subscribe_event(struct v4l2_fh *fh, + const struct v4l2_event_subscription *sub) +{ + switch (sub->type) { + case V4L2_EVENT_FRAME_SYNC: + return v4l2_event_subscribe(fh, sub, 2, NULL); + default: + return -EINVAL; + } +} + +static const struct v4l2_ioctl_ops unicam_ioctl_ops = { + .vidioc_querycap = unicam_querycap, + + .vidioc_enum_fmt_vid_cap = unicam_enum_fmt_vid, + .vidioc_g_fmt_vid_cap = unicam_g_fmt_vid, + .vidioc_try_fmt_vid_cap = unicam_try_fmt_vid, + .vidioc_s_fmt_vid_cap = unicam_s_fmt_vid, + + .vidioc_enum_fmt_meta_cap = unicam_enum_fmt_meta, + .vidioc_g_fmt_meta_cap = unicam_g_fmt_meta, + .vidioc_try_fmt_meta_cap = unicam_try_fmt_meta, + .vidioc_s_fmt_meta_cap = unicam_s_fmt_meta, + + .vidioc_enum_framesizes = unicam_enum_framesizes, + + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, + + .vidioc_log_status = unicam_log_status, + .vidioc_subscribe_event = unicam_subscribe_event, + .vidioc_unsubscribe_event = v4l2_event_unsubscribe, +}; + +/* unicam capture driver file operations */ +static const struct v4l2_file_operations unicam_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vb2_fop_mmap, +}; + +static int unicam_video_link_validate(struct media_link *link) +{ + struct video_device *vdev = + media_entity_to_video_device(link->sink->entity); + struct v4l2_subdev *sd = + media_entity_to_v4l2_subdev(link->source->entity); + struct unicam_node *node = video_get_drvdata(vdev); + const u32 pad = is_image_node(node) ? UNICAM_SD_PAD_SOURCE_IMAGE + : UNICAM_SD_PAD_SOURCE_METADATA; + const struct v4l2_mbus_framefmt *format; + struct v4l2_subdev_state *state; + int ret = 0; + + state = v4l2_subdev_lock_and_get_active_state(sd); + + format = v4l2_subdev_state_get_format(state, pad, 0); + if (!format) { + ret = -EINVAL; + goto out; + } + + if (is_image_node(node)) { + const struct v4l2_pix_format *fmt = &node->fmt.fmt.pix; + + if (node->fmtinfo->code != format->code || + fmt->height != format->height || + fmt->width != format->width || + fmt->field != format->field) { + dev_dbg(node->dev->dev, + "image: (%u x %u) 0x%08x %s != (%u x %u) 0x%08x %s\n", + fmt->width, fmt->height, node->fmtinfo->code, + v4l2_field_names[fmt->field], + format->width, format->height, format->code, + v4l2_field_names[format->field]); + ret = -EPIPE; + } + } else { + const struct v4l2_meta_format *fmt = &node->fmt.fmt.meta; + + if (node->fmtinfo->code != format->code || + fmt->height != format->height || + fmt->width != format->width) { + dev_dbg(node->dev->dev, + "meta: (%u x %u) 0x%04x != (%u x %u) 0x%04x\n", + fmt->width, fmt->height, node->fmtinfo->code, + format->width, format->height, format->code); + ret = -EPIPE; + } + } + +out: + v4l2_subdev_unlock_state(state); + return ret; +} + +static const struct media_entity_operations unicam_video_media_ops = { + .link_validate = unicam_video_link_validate, +}; + +static void unicam_node_release(struct video_device *vdev) +{ + struct unicam_node *node = video_get_drvdata(vdev); + + unicam_put(node->dev); +} + +static void unicam_set_default_format(struct unicam_node *node) +{ + if (is_image_node(node)) { + struct v4l2_pix_format *fmt = &node->fmt.fmt.pix; + + node->fmtinfo = &unicam_image_formats[0]; + node->fmt.type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + + v4l2_fill_pix_format(fmt, &unicam_default_image_format); + fmt->pixelformat = node->fmtinfo->fourcc; + unicam_calc_image_size_bpl(node->dev, node->fmtinfo, fmt); + } else { + struct v4l2_meta_format *fmt = &node->fmt.fmt.meta; + + node->fmtinfo = &unicam_meta_formats[0]; + node->fmt.type = V4L2_BUF_TYPE_META_CAPTURE; + + fmt->dataformat = node->fmtinfo->fourcc; + fmt->width = unicam_default_meta_format.width; + fmt->height = unicam_default_meta_format.height; + unicam_calc_meta_size_bpl(node->dev, node->fmtinfo, fmt); + } +} + +static int unicam_register_node(struct unicam_device *unicam, + enum unicam_node_type type) +{ + const u32 pad_index = type == UNICAM_IMAGE_NODE + ? UNICAM_SD_PAD_SOURCE_IMAGE + : UNICAM_SD_PAD_SOURCE_METADATA; + struct unicam_node *node = &unicam->node[type]; + struct video_device *vdev = &node->video_dev; + struct vb2_queue *q = &node->buffer_queue; + int ret; + + node->dev = unicam_get(unicam); + node->id = type; + + spin_lock_init(&node->dma_queue_lock); + + INIT_LIST_HEAD(&node->dma_queue); + + /* Initialize the videobuf2 queue. */ + q->type = type == UNICAM_IMAGE_NODE ? V4L2_BUF_TYPE_VIDEO_CAPTURE + : V4L2_BUF_TYPE_META_CAPTURE; + q->io_modes = VB2_MMAP | VB2_DMABUF; + q->drv_priv = node; + q->ops = &unicam_video_qops; + q->mem_ops = &vb2_dma_contig_memops; + q->buf_struct_size = sizeof(struct unicam_buffer); + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->lock = &unicam->lock; + q->min_queued_buffers = 1; + q->dev = unicam->dev; + + ret = vb2_queue_init(q); + if (ret) { + dev_err(unicam->dev, "vb2_queue_init() failed\n"); + goto err_unicam_put; + } + + /* Initialize the video device. */ + vdev->release = unicam_node_release; + vdev->fops = &unicam_fops; + vdev->ioctl_ops = &unicam_ioctl_ops; + vdev->v4l2_dev = &unicam->v4l2_dev; + vdev->vfl_dir = VFL_DIR_RX; + vdev->queue = q; + vdev->lock = &unicam->lock; + vdev->device_caps = type == UNICAM_IMAGE_NODE + ? V4L2_CAP_VIDEO_CAPTURE : V4L2_CAP_META_CAPTURE; + vdev->device_caps |= V4L2_CAP_STREAMING | V4L2_CAP_IO_MC; + vdev->entity.ops = &unicam_video_media_ops; + + snprintf(vdev->name, sizeof(vdev->name), "%s-%s", UNICAM_MODULE_NAME, + type == UNICAM_IMAGE_NODE ? "image" : "embedded"); + + video_set_drvdata(vdev, node); + + if (type == UNICAM_IMAGE_NODE) + vdev->entity.flags |= MEDIA_ENT_FL_DEFAULT; + + node->pad.flags = MEDIA_PAD_FL_SINK; + + ret = media_entity_pads_init(&vdev->entity, 1, &node->pad); + if (ret) + goto err_unicam_put; + + node->dummy_buf.size = UNICAM_DUMMY_BUF_SIZE; + node->dummy_buf_cpu_addr = dma_alloc_coherent(unicam->dev, + node->dummy_buf.size, + &node->dummy_buf.dma_addr, + GFP_KERNEL); + if (!node->dummy_buf_cpu_addr) { + dev_err(unicam->dev, "Unable to allocate dummy buffer.\n"); + ret = -ENOMEM; + goto err_entity_cleanup; + } + + unicam_set_default_format(node); + + ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); + if (ret) { + dev_err(unicam->dev, "Unable to register video device %s\n", + vdev->name); + goto err_dma_free; + } + + node->registered = true; + + ret = media_create_pad_link(&unicam->subdev.sd.entity, + pad_index, + &node->video_dev.entity, + 0, + MEDIA_LNK_FL_ENABLED | + MEDIA_LNK_FL_IMMUTABLE); + if (ret) { + /* + * No need for cleanup, the caller will unregister the + * video device, which will drop the reference on the + * device and trigger the cleanup. + */ + dev_err(unicam->dev, "Unable to create pad link for %s\n", + unicam->sensor.subdev->name); + return ret; + } + + return 0; + +err_dma_free: + dma_free_coherent(unicam->dev, node->dummy_buf.size, + node->dummy_buf_cpu_addr, + node->dummy_buf.dma_addr); +err_entity_cleanup: + media_entity_cleanup(&vdev->entity); +err_unicam_put: + unicam_put(unicam); + return ret; +} + +static void unicam_unregister_nodes(struct unicam_device *unicam) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(unicam->node); i++) { + struct unicam_node *node = &unicam->node[i]; + + if (node->dummy_buf_cpu_addr) + dma_free_coherent(unicam->dev, node->dummy_buf.size, + node->dummy_buf_cpu_addr, + node->dummy_buf.dma_addr); + + if (node->registered) { + video_unregister_device(&node->video_dev); + node->registered = false; + } + } +} + +/* ----------------------------------------------------------------------------- + * Power management + */ + +static int unicam_runtime_resume(struct device *dev) +{ + struct unicam_device *unicam = dev_get_drvdata(dev); + int ret; + + ret = clk_set_min_rate(unicam->vpu_clock, UNICAM_MIN_VPU_CLOCK_RATE); + if (ret) { + dev_err(unicam->dev, "failed to set up VPU clock\n"); + return ret; + } + + ret = clk_prepare_enable(unicam->vpu_clock); + if (ret) { + dev_err(unicam->dev, "Failed to enable VPU clock: %d\n", ret); + goto err_vpu_clock; + } + + ret = clk_set_rate(unicam->clock, 100 * 1000 * 1000); + if (ret) { + dev_err(unicam->dev, "failed to set up CSI clock\n"); + goto err_vpu_prepare; + } + + ret = clk_prepare_enable(unicam->clock); + if (ret) { + dev_err(unicam->dev, "Failed to enable CSI clock: %d\n", ret); + goto err_vpu_prepare; + } + + return 0; + +err_vpu_prepare: + clk_disable_unprepare(unicam->vpu_clock); +err_vpu_clock: + if (clk_set_min_rate(unicam->vpu_clock, 0)) + dev_err(unicam->dev, "failed to reset the VPU clock\n"); + + return ret; +} + +static int unicam_runtime_suspend(struct device *dev) +{ + struct unicam_device *unicam = dev_get_drvdata(dev); + + clk_disable_unprepare(unicam->clock); + + if (clk_set_min_rate(unicam->vpu_clock, 0)) + dev_err(unicam->dev, "failed to reset the VPU clock\n"); + + clk_disable_unprepare(unicam->vpu_clock); + + return 0; +} + +static const struct dev_pm_ops unicam_pm_ops = { + RUNTIME_PM_OPS(unicam_runtime_suspend, unicam_runtime_resume, NULL) +}; + +/* ----------------------------------------------------------------------------- + * V4L2 async notifier + */ + +static int unicam_async_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *subdev, + struct v4l2_async_connection *asc) +{ + struct unicam_device *unicam = notifier_to_unicam_device(notifier); + struct media_pad *sink = &unicam->subdev.pads[UNICAM_SD_PAD_SINK]; + struct media_pad *source; + int ret; + + dev_dbg(unicam->dev, "Using sensor %s for capture\n", + subdev->name); + + ret = v4l2_create_fwnode_links_to_pad(subdev, sink, MEDIA_LNK_FL_ENABLED | + MEDIA_LNK_FL_IMMUTABLE); + if (ret) + return ret; + + source = media_pad_remote_pad_unique(sink); + if (!source) { + dev_err(unicam->dev, "No connected sensor pad\n"); + return -ENOTCONN; + } + + unicam->sensor.subdev = subdev; + unicam->sensor.pad = source; + + return 0; +} + +static int unicam_async_complete(struct v4l2_async_notifier *notifier) +{ + struct unicam_device *unicam = notifier_to_unicam_device(notifier); + int ret; + + ret = unicam_register_node(unicam, UNICAM_IMAGE_NODE); + if (ret) { + dev_err(unicam->dev, "Unable to register image video device.\n"); + goto unregister; + } + + ret = unicam_register_node(unicam, UNICAM_METADATA_NODE); + if (ret) { + dev_err(unicam->dev, "Unable to register metadata video device.\n"); + goto unregister; + } + + ret = v4l2_device_register_subdev_nodes(&unicam->v4l2_dev); + if (ret) { + dev_err(unicam->dev, "Unable to register subdev nodes.\n"); + goto unregister; + } + + return 0; + +unregister: + unicam_unregister_nodes(unicam); + unicam_put(unicam); + + return ret; +} + +static const struct v4l2_async_notifier_operations unicam_async_ops = { + .bound = unicam_async_bound, + .complete = unicam_async_complete, +}; + +static int unicam_async_nf_init(struct unicam_device *unicam) +{ + struct v4l2_fwnode_endpoint ep = { }; + struct fwnode_handle *ep_handle; + struct v4l2_async_connection *asc; + int ret; + + ret = of_property_read_u32(unicam->dev->of_node, "brcm,num-data-lanes", + &unicam->max_data_lanes); + if (ret < 0) { + dev_err(unicam->dev, "Missing %s DT property\n", + "brcm,num-data-lanes"); + return -EINVAL; + } + + /* Get and parse the local endpoint. */ + ep_handle = fwnode_graph_get_endpoint_by_id(dev_fwnode(unicam->dev), 0, 0, + FWNODE_GRAPH_ENDPOINT_NEXT); + if (!ep_handle) { + dev_err(unicam->dev, "No endpoint found\n"); + return -ENODEV; + } + + ret = v4l2_fwnode_endpoint_parse(ep_handle, &ep); + if (ret) { + dev_err(unicam->dev, "Failed to parse endpoint: %d\n", ret); + goto error; + } + + unicam->bus_type = ep.bus_type; + + switch (ep.bus_type) { + case V4L2_MBUS_CSI2_DPHY: { + unsigned int num_data_lanes = ep.bus.mipi_csi2.num_data_lanes; + + if (num_data_lanes != 1 && num_data_lanes != 2 && + num_data_lanes != 4) { + dev_err(unicam->dev, "%u data lanes not supported\n", + num_data_lanes); + goto error; + } + + if (num_data_lanes > unicam->max_data_lanes) { + dev_err(unicam->dev, + "Endpoint uses %u data lanes when %u are supported\n", + num_data_lanes, unicam->max_data_lanes); + goto error; + } + + unicam->max_data_lanes = num_data_lanes; + unicam->bus_flags = ep.bus.mipi_csi2.flags; + break; + } + + case V4L2_MBUS_CCP2: + unicam->max_data_lanes = 1; + unicam->bus_flags = ep.bus.mipi_csi1.strobe; + break; + + default: + /* Unsupported bus type */ + dev_err(unicam->dev, "Unsupported bus type %u\n", ep.bus_type); + goto error; + } + + /* Initialize and register the async notifier. */ + v4l2_async_nf_init(&unicam->notifier, &unicam->v4l2_dev); + + asc = v4l2_async_nf_add_fwnode_remote(&unicam->notifier, ep_handle, + struct v4l2_async_connection); + fwnode_handle_put(ep_handle); + ep_handle = NULL; + + if (IS_ERR(asc)) { + ret = PTR_ERR(asc); + dev_err(unicam->dev, "Failed to add entry to notifier: %d\n", + ret); + goto error; + } + + unicam->notifier.ops = &unicam_async_ops; + + ret = v4l2_async_nf_register(&unicam->notifier); + if (ret) { + dev_err(unicam->dev, "Error registering device notifier: %d\n", + ret); + goto error; + } + + return 0; + +error: + fwnode_handle_put(ep_handle); + return ret; +} + +/* ----------------------------------------------------------------------------- + * Probe & remove + */ + +static int unicam_media_init(struct unicam_device *unicam) +{ + int ret; + + unicam->mdev.dev = unicam->dev; + strscpy(unicam->mdev.model, UNICAM_MODULE_NAME, + sizeof(unicam->mdev.model)); + unicam->mdev.hw_revision = 0; + + media_device_init(&unicam->mdev); + + unicam->v4l2_dev.mdev = &unicam->mdev; + + ret = v4l2_device_register(unicam->dev, &unicam->v4l2_dev); + if (ret < 0) { + dev_err(unicam->dev, "Unable to register v4l2 device\n"); + goto err_media_cleanup; + } + + ret = media_device_register(&unicam->mdev); + if (ret < 0) { + dev_err(unicam->dev, + "Unable to register media-controller device\n"); + goto err_v4l2_unregister; + } + + return 0; + +err_v4l2_unregister: + v4l2_device_unregister(&unicam->v4l2_dev); +err_media_cleanup: + media_device_cleanup(&unicam->mdev); + return ret; +} + +static int unicam_probe(struct platform_device *pdev) +{ + struct unicam_device *unicam; + int ret; + + unicam = kzalloc(sizeof(*unicam), GFP_KERNEL); + if (!unicam) + return -ENOMEM; + + kref_init(&unicam->kref); + mutex_init(&unicam->lock); + + unicam->dev = &pdev->dev; + platform_set_drvdata(pdev, unicam); + + unicam->base = devm_platform_ioremap_resource_byname(pdev, "unicam"); + if (IS_ERR(unicam->base)) { + ret = PTR_ERR(unicam->base); + goto err_unicam_put; + } + + unicam->clk_gate_base = devm_platform_ioremap_resource_byname(pdev, "cmi"); + if (IS_ERR(unicam->clk_gate_base)) { + ret = PTR_ERR(unicam->clk_gate_base); + goto err_unicam_put; + } + + unicam->clock = devm_clk_get(&pdev->dev, "lp"); + if (IS_ERR(unicam->clock)) { + dev_err(unicam->dev, "Failed to get lp clock\n"); + ret = PTR_ERR(unicam->clock); + goto err_unicam_put; + } + + unicam->vpu_clock = devm_clk_get(&pdev->dev, "vpu"); + if (IS_ERR(unicam->vpu_clock)) { + dev_err(unicam->dev, "Failed to get vpu clock\n"); + ret = PTR_ERR(unicam->vpu_clock); + goto err_unicam_put; + } + + ret = platform_get_irq(pdev, 0); + if (ret <= 0) { + dev_err(&pdev->dev, "No IRQ resource\n"); + ret = -EINVAL; + goto err_unicam_put; + } + + ret = devm_request_irq(&pdev->dev, ret, unicam_isr, 0, + "unicam_capture0", unicam); + if (ret) { + dev_err(&pdev->dev, "Unable to request interrupt\n"); + ret = -EINVAL; + goto err_unicam_put; + } + + /* Enable the block power domain. */ + pm_runtime_enable(&pdev->dev); + + ret = unicam_media_init(unicam); + if (ret) + goto err_pm_runtime; + + ret = unicam_subdev_init(unicam); + if (ret) + goto err_media_unregister; + + ret = unicam_async_nf_init(unicam); + if (ret) + goto err_subdev_unregister; + + return 0; + +err_subdev_unregister: + unicam_subdev_cleanup(unicam); +err_media_unregister: + media_device_unregister(&unicam->mdev); +err_pm_runtime: + pm_runtime_disable(&pdev->dev); +err_unicam_put: + unicam_put(unicam); + + return ret; +} + +static int unicam_remove(struct platform_device *pdev) +{ + struct unicam_device *unicam = platform_get_drvdata(pdev); + + unicam_unregister_nodes(unicam); + v4l2_device_unregister(&unicam->v4l2_dev); + media_device_unregister(&unicam->mdev); + v4l2_async_nf_unregister(&unicam->notifier); + + unicam_subdev_cleanup(unicam); + + unicam_put(unicam); + + pm_runtime_disable(&pdev->dev); + + return 0; +} + +static const struct of_device_id unicam_of_match[] = { + { .compatible = "brcm,bcm2835-unicam", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, unicam_of_match); + +static struct platform_driver unicam_driver = { + .probe = unicam_probe, + .remove = unicam_remove, + .driver = { + .name = UNICAM_MODULE_NAME, + .pm = pm_ptr(&unicam_pm_ops), + .of_match_table = of_match_ptr(unicam_of_match), + }, +}; + +module_platform_driver(unicam_driver); + +MODULE_AUTHOR("Dave Stevenson "); +MODULE_DESCRIPTION("BCM2835 Unicam driver"); +MODULE_LICENSE("GPL"); From patchwork Wed Mar 27 00:05:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782905 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 78A1C179AE; Wed, 27 Mar 2024 00:05:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497936; cv=none; b=KiFBaUTX1S8cgUw398WX45ySXQDZhloLyxjsOyvg7kZxzWNESdwXINsRDjyCa4bROufOcqJ54EP5uckc23ir1AnbsJ2IOn48V1pJnpR6nVezPe68PVZXUJzSaPDbIgajxfeHWhOfWADatcl2M8+cVAVj4pSqRZ8qK8/TSzBrd3I= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497936; c=relaxed/simple; bh=ybZbbZqQ1ELODTrSxhED6Hxme53qUpP5ozWnwQo8f1M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497896; bh=ybZbbZqQ1ELODTrSxhED6Hxme53qUpP5ozWnwQo8f1M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Syx+ZAz5Ue7uvkAvS7CwRIGv+3ms9sngMBw2k38wr7ZPkHQBBaAmxyv0iieNC2DbM cVrBuqF/Bfx47Tkv/SbWQEcePHffoHRAjEtfC2En1CqbqW9mskAa4Dntm2l1ifV6JA LSHp6VlvxtbPsI81j6nrk8kUnTSuOUXZ/b1HMRGw= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 05/10] ARM: dts: bcm2835-rpi: Move firmware-clocks from bcm2711 to bcm2835 Date: Wed, 27 Mar 2024 02:05:03 +0200 Message-ID: <20240327000510.2541-6-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The Raspberry Pi firmware handles clocks on all BCM2835-derived SoCs, not just on the BCM2711. Move the corresponding DT node from bcm2711-rpi.dtsi to bcm2835-rpi.dtsi. Signed-off-by: Laurent Pinchart Reviewed-by: Dave Stevenson --- arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi | 5 ----- arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi | 5 +++++ 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi index d233a191c139..86188eabeb24 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi @@ -20,11 +20,6 @@ aliases { }; &firmware { - firmware_clocks: clocks { - compatible = "raspberrypi,firmware-clocks"; - #clock-cells = <1>; - }; - expgpio: gpio { compatible = "raspberrypi,firmware-gpio"; gpio-controller; diff --git a/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi index 761a9da97bd0..6e6dc109f0c2 100644 --- a/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi @@ -5,6 +5,11 @@ soc { firmware: firmware { compatible = "raspberrypi,bcm2835-firmware", "simple-mfd"; mboxes = <&mailbox>; + + firmware_clocks: clocks { + compatible = "raspberrypi,firmware-clocks"; + #clock-cells = <1>; + }; }; power: power { From patchwork Wed Mar 27 00:05:04 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782904 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FD2029A8; Wed, 27 Mar 2024 00:05:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497939; cv=none; b=ILcU08I6caLoBqJ4bvgRwCnHzZKfDdgpiyW/Ek33RivpYgbu8b2xzyyQH47CgdOwglKPd2Wythht/W2GMN/IADOnHPERwVRU13heoZxgVswz4S8qwnHUMVtHyBzeIqhcVC/2CO7PjMwJfUoTUK71hE6LlYVtILIcfNjsYtOdAC4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497939; c=relaxed/simple; bh=mtnOGIDcBG5OGj3awvJlSrQuL3PVIusLG2rt8IMyvuY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=udsrQ/dFbnHq1hyMPZCH1f/pEVMxSm2O/pa87lvAiwydWLiHJSvmg8CMZLQwmaFHlLTX7+NpKyfgMw+2laH190KkJjhz8pEZJuqx8TOzjS2QtwbE4e3Mu2ccFYB5lSbuPc685eX9w2cjPxJ+AndSwUmWp0Ripx0ZwsRhRTVok+I= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=SdaTXCEa; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="SdaTXCEa" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 523013372; Wed, 27 Mar 2024 01:04:58 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497898; bh=mtnOGIDcBG5OGj3awvJlSrQuL3PVIusLG2rt8IMyvuY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SdaTXCEa/IgkzL3XDShEN0CZ7nzC5zKlHxQ2tfYNKL74SOnPhrwGYb+1nxE7DbUPg lFPGWJ6z++38YWB5m7GVhLuOpR8tg9N6VdClYacoJqaew1LLnMm0l+Q/nWvjzeaVr8 lFkxBSRu063WolUXCz/NcI1/HaU6xlE7gGD3lGmQ= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Jean-Michel Hautbois , Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 06/10] ARM: dts: bcm2835: Add Unicam CSI nodes Date: Wed, 27 Mar 2024 02:05:04 +0200 Message-ID: <20240327000510.2541-7-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Jean-Michel Hautbois Add both MIPI CSI-2 nodes in the bcm283x tree and take care of the Raspberry Pi / BCM2711 specific in the related files. Signed-off-by: Jean-Michel Hautbois Reviewed-by: Laurent Pinchart Signed-off-by: Stefan Wahren --- arch/arm/boot/dts/broadcom/bcm2711.dtsi | 8 +++++++ arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi | 14 ++++++++++++ arch/arm/boot/dts/broadcom/bcm283x.dtsi | 24 +++++++++++++++++++++ 3 files changed, 46 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm2711.dtsi b/arch/arm/boot/dts/broadcom/bcm2711.dtsi index 22c7f1561344..1d8f9f80f935 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2711.dtsi @@ -1114,6 +1114,14 @@ &rmem { #address-cells = <2>; }; +&csi0 { + interrupts = ; +}; + +&csi1 { + interrupts = ; +}; + &cma { /* * arm64 reserves the CMA by default somewhere in ZONE_DMA32, diff --git a/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi index 6e6dc109f0c2..e9bf41b9f5c1 100644 --- a/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi @@ -26,6 +26,20 @@ vchiq: mailbox@7e00b840 { }; }; +&csi0 { + clocks = <&clocks BCM2835_CLOCK_CAM0>, + <&firmware_clocks 4>; + clock-names = "lp", "vpu"; + power-domains = <&power RPI_POWER_DOMAIN_UNICAM0>; +}; + +&csi1 { + clocks = <&clocks BCM2835_CLOCK_CAM1>, + <&firmware_clocks 4>; + clock-names = "lp", "vpu"; + power-domains = <&power RPI_POWER_DOMAIN_UNICAM1>; +}; + &gpio { gpioout: gpioout { brcm,pins = <6>; diff --git a/arch/arm/boot/dts/broadcom/bcm283x.dtsi b/arch/arm/boot/dts/broadcom/bcm283x.dtsi index 2ca8a2505a4d..69b0919f1324 100644 --- a/arch/arm/boot/dts/broadcom/bcm283x.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm283x.dtsi @@ -454,6 +454,30 @@ dsi1: dsi@7e700000 { status = "disabled"; }; + csi0: csi@7e800000 { + compatible = "brcm,bcm2835-unicam"; + reg = <0x7e800000 0x800>, + <0x7e802000 0x4>; + reg-names = "unicam", "cmi"; + interrupts = <2 6>; + brcm,num-data-lanes = <2>; + status = "disabled"; + port { + }; + }; + + csi1: csi@7e801000 { + compatible = "brcm,bcm2835-unicam"; + reg = <0x7e801000 0x800>, + <0x7e802004 0x4>; + reg-names = "unicam", "cmi"; + interrupts = <2 7>; + brcm,num-data-lanes = <4>; + status = "disabled"; + port { + }; + }; + i2c1: i2c@7e804000 { compatible = "brcm,bcm2835-i2c"; reg = <0x7e804000 0x1000>; From patchwork Wed Mar 27 00:05:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 783861 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BDBBC1D529; Wed, 27 Mar 2024 00:05:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497941; cv=none; b=nDBPQGW7cWcM/jrJB4AuFNTdyjrPNdy3Pq89IawydcAzf75kQl60f3WOnGv3J3b2YuABMpyzzwIICHB1aQ//XXftopodiJSX6MahBpkxVBuqVcX2/QouSSBlsljCiv44H7i37IlDMeMXMTGzChdXxKsWu8GUHF63GUshRuNgONk= ARC-Message-Signature: i=1; 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Wed, 27 Mar 2024 01:05:00 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497900; bh=ndys2svSg9cK6eMDpWAf6Ot6tAYHyHGSNq5sgUYubWc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nk/YJhyKCMjVYD0BSRMjBcf49mWwSbjrxvFIFKeZSlodBFJ4FXOJQUflFcmrPpSTe w2JnWzGCxDYJ8mG0Nhpb7DgQJa813mN82DrIBlNoAxfpkKZ5twCg2DD6RViMXW7VpZ awRloLou9JIyLjp5gmrfrWMegWDqvQoEYC0FPMQs= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 07/10] ARM: dts: bcm2711-rpi: Add pinctrl-based multiplexing for I2C0 Date: Wed, 27 Mar 2024 02:05:05 +0200 Message-ID: <20240327000510.2541-8-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Uwe Kleine-König BCM2711-based Raspberry Pi boards (4B, CM4 and 400) multiplex the I2C0 controller over two sets of pins, GPIO0+1 and GPIO44+45. The former is exposed on the 40-pin header, while the latter is used for the CSI and DSI connectors. Add a pinctrl-based I2C bus multiplexer to bcm2711-rpi.dtsi to model this multiplexing. The two child buses are named i2c0_0 and i2c0_1. Note that if you modified the dts before to add devices to the i2c bus appearing on pins gpio0 + gpio1 (either directly in the dts or using an overlay), you have to put these into the i2c0_0 node introduced here now. Signed-off-by: Uwe Kleine-König Signed-off-by: Laurent Pinchart Acked-by: Dave Stevenson --- Changes since v7: - Rename i2c0mux to i2c-mux0 Changes since v6: - Don't disable i2c0mux by default Changes since v3: - Split addition of the RTC to a separate patch - Move the mux to bcm2711-rpi.dtsi --- arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi | 29 +++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi index 86188eabeb24..6bf4241fe3b7 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi.dtsi @@ -17,6 +17,30 @@ aliases { pcie0 = &pcie0; blconfig = &blconfig; }; + + i2c0mux: i2c-mux0 { + compatible = "i2c-mux-pinctrl"; + #address-cells = <1>; + #size-cells = <0>; + + i2c-parent = <&i2c0>; + + pinctrl-names = "i2c0", "i2c0-vc"; + pinctrl-0 = <&i2c0_gpio0>; + pinctrl-1 = <&i2c0_gpio44>; + + i2c0_0: i2c@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + i2c0_1: i2c@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; + }; }; &firmware { @@ -49,6 +73,11 @@ &hvs { clocks = <&firmware_clocks 4>; }; +&i2c0 { + /delete-property/ pinctrl-names; + /delete-property/ pinctrl-0; +}; + &rmem { /* * RPi4's co-processor will copy the board's bootloader configuration From patchwork Wed Mar 27 00:05:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782903 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8AB817FF; Wed, 27 Mar 2024 00:05:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497942; cv=none; b=Qtx68Zwt1C2E0QykJzP5QrYMzpQcntnbbuJZRJ/yVztKrj9/YUC+okT0T/lPhbTUHKl3NPW8j+MOQzGcL1PW1QmqrnEqpEo69nD/1eYFaM8givcgfS38U7z0Wcc1fVVon+nd5bTO0Nw64WqAviOHTy4E5erd6bSnYD8sMBallCM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497942; c=relaxed/simple; bh=nfmG66xJVQgl7ZManiXHS7ko/Ld2MVqZXQSBho/7z/o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aqHgymx8+S4rgFvRsQ0VRfoFB2VLmUvNEmHMXxdIWDDublJnV6BmpdCUnQn/NzFdiEGIqcHzwTaK1cIpysvHh4qli/kp2TqbMPB+8DPXDT5ytjfKC6xRz0oV3/ek4fR/S8aw1otAMBBlnkjfPMbdpFr8uMUyNOpg0oiBDs0qXds= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=pRaZRyfw; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="pRaZRyfw" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id DE96E505; Wed, 27 Mar 2024 01:05:01 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497902; bh=nfmG66xJVQgl7ZManiXHS7ko/Ld2MVqZXQSBho/7z/o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pRaZRyfwuuTZtvrFhuuwyFivVmnQ/lnCMybx6uejSTinVN1FXj14UDEqFjQx28nn7 thErkVhrmBsX2yGXve7u2aYAaHWkXgDoyAow9Eym9Kr/DLALT39atCzzPWpVAwi+HU PkjVA88vKqV4K2gTEs/wj68KkxQBj/xy8Zy5gh0k= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= , Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 08/10] ARM: dts: bcm2711-rpi-cm4-io: Add RTC on I2C0 Date: Wed, 27 Mar 2024 02:05:06 +0200 Message-ID: <20240327000510.2541-9-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Uwe Kleine-König The cm4-io board comes with a PCF85063 on I2C0, connected to the GPIO44 and GPIO45 pins. Add it to the device tree. Signed-off-by: Uwe Kleine-König Signed-off-by: Laurent Pinchart Acked-by: Dave Stevenson --- Changes since v6: - Drop unneeded status = "okay" Changes since v4: - Use the right part number in the compatible string - Add the quartz-load-femtofarads property Changes since v3: - Separate addition of the RTC to a patch of its own --- arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts index d7ba02f586d3..7c6a5bdf48aa 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-cm4-io.dts @@ -101,6 +101,15 @@ &genet { status = "okay"; }; +&i2c0_1 { + rtc@51 { + /* Attention: An alarm resets the machine */ + compatible = "nxp,pcf85063a"; + reg = <0x51>; + quartz-load-femtofarads = <7000>; + }; +}; + &led_act { gpios = <&gpio 42 GPIO_ACTIVE_HIGH>; }; From patchwork Wed Mar 27 00:05:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 783860 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AD4D61DFC4; Wed, 27 Mar 2024 00:05:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497944; cv=none; b=I3mhpBRlWfetx0QWnk9MXFjlXTTOpyMc7cFyuJiwNeOA4/pt1nU1riIz466KXpsvng82q8J5waWpL9oFKD7Xt+GpHBznFfFN1dwkPdzW8oxkrwZKUmKTI/mzWeW4TV4G1a3CNNqj2jk/+TXN2cy4daIDO76dx5t3JmUJhKVL6Xc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497944; c=relaxed/simple; bh=bTlomEbFEaMjNB1os7nE/kUPnTy1me7NtAgvAHE/ilc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iwTtHWg57Y6dJOCc/YjxJDRE1n/qlmTWJEvIbQ+te61zXFv7A5RVIuJHY7oQEVsKP9cSLypr17P9mMDgPFLEfTE+RFuLnILP8L+JrUXdEewbhvmcLQI8YzeY5myypPgUegco7CcsmTVOGtPl7kd6IypBk6KV8xVARNuSIrJjJZc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=Csvg5a9T; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="Csvg5a9T" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id A60542CFB; Wed, 27 Mar 2024 01:05:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497903; bh=bTlomEbFEaMjNB1os7nE/kUPnTy1me7NtAgvAHE/ilc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Csvg5a9TKze1jiz6ZU/esvf9BRrYzvcf9YmCsI41VA2xopBonOABkCemxl8JCU8I5 CauQ/08NRkSAAmgsIPb5wcNj67qr0lEZM7T8cX+X8b3M+wvLIy+rUA6rLrwM8zUftd 9CmEPhS4c1LgxbLIzf1cqzU+2nkvhxB0M/U2rhrE= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 09/10] ARM: dts: bcm2711-rpi-4-b: Add CAM1 regulator Date: Wed, 27 Mar 2024 02:05:07 +0200 Message-ID: <20240327000510.2541-10-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Add a fixed regulator to model the power supply to the camera connector. Signed-off-by: Laurent Pinchart --- arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts index d5f8823230db..cfc8cb5e10ba 100644 --- a/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/broadcom/bcm2711-rpi-4-b.dts @@ -15,6 +15,13 @@ chosen { stdout-path = "serial1:115200n8"; }; + cam1_reg: regulator-cam1 { + compatible = "regulator-fixed"; + regulator-name = "cam1-reg"; + enable-active-high; + gpio = <&expgpio 5 GPIO_ACTIVE_HIGH>; + }; + sd_io_1v8_reg: regulator-sd-io-1v8 { compatible = "regulator-gpio"; regulator-name = "vdd-sd-io"; From patchwork Wed Mar 27 00:05:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 782902 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C5D3F7FF; Wed, 27 Mar 2024 00:05:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497945; cv=none; b=Cd9OTTDYjbkIjRLzylQz0u+dYyf2gXjsfXJ9F2HRHbLXjdcruQc1/gyTztdZ/mdyl103k6/xyUhR9mpODMf9+NlrIurMbP7Zc3U73+FzlZZlMGc0jaCxhLeTZlo/PVL80apTwQFWwgOodg3oiWl6pn2hsGc32F8hMrryki9Nc9Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711497945; c=relaxed/simple; bh=JZ4AsAS6QEH6p78N1Ia+NHkaUGclH/Q+FhYPQorjdas=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bI2JwDIhNyso5igreLekFitVBhU+ER1IZFv9WC3Ha13JWWCgaxcdTBUkew1aEDUH5xxqQ9YJRaocAM1PgPQe1hK4BkQafPY17CXi73jJNrO6cdMvT+McB4Cx3PN1a+7NNR2lVLHs4UqVVNi5QTJ3F14k/s8o3UTM9iF3a9j10w4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=m2pA0xQ4; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="m2pA0xQ4" Received: from pendragon.ideasonboard.com (81-175-209-231.bb.dnainternet.fi [81.175.209.231]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 79F9C1890; Wed, 27 Mar 2024 01:05:05 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1711497905; bh=JZ4AsAS6QEH6p78N1Ia+NHkaUGclH/Q+FhYPQorjdas=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=m2pA0xQ4EOzgqJ9oAUKA1BcZpDzB/qlgAZBaR9ZwFCfn5FSDqgk4OTr5BO7BXI+Jb A32y8FU+mADiIP4xKeUQdUoQ5a/fEEnKCvenCeTRFUvKidDitAGv+wXKvTkbL4F6Vc o5Oas4O8gVK9SFf+fzcWEVx5ql1QXOU0g51mkGkU= From: Laurent Pinchart To: linux-media@vger.kernel.org Cc: Dave Stevenson , David Plowman , Jean-Michel Hautbois , Hans Verkuil , Naushir Patuck , Sakari Ailus , kernel-list@raspberrypi.com, linux-rpi-kernel@lists.infradead.org, Florian Fainelli , Ray Jui , Scott Branden , bcm-kernel-feedback-list@broadcom.com, Conor Dooley , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v8 10/10] [DNI] arm64: dts: broadcom: Add overlay for Raspberry Pi 4B IMX219 camera Date: Wed, 27 Mar 2024 02:05:08 +0200 Message-ID: <20240327000510.2541-11-laurent.pinchart@ideasonboard.com> X-Mailer: git-send-email 2.43.2 In-Reply-To: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> References: <20240327000510.2541-1-laurent.pinchart@ideasonboard.com> Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 For testing only at this point. Signed-off-by: Laurent Pinchart --- Changes since v6: - Add combined DTB to dtbs --- arch/arm64/boot/dts/broadcom/Makefile | 4 ++ .../dts/broadcom/bcm2711-rpi-4-b-imx219.dtso | 65 +++++++++++++++++++ 2 files changed, 69 insertions(+) create mode 100644 arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b-imx219.dtso diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile index 8b4591ddd27c..59bf2891241b 100644 --- a/arch/arm64/boot/dts/broadcom/Makefile +++ b/arch/arm64/boot/dts/broadcom/Makefile @@ -12,6 +12,10 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \ bcm2837-rpi-cm3-io3.dtb \ bcm2837-rpi-zero-2-w.dtb +bcm2711-rpi-4-b-imx219-dtbs := bcm2711-rpi-4-b.dtb bcm2711-rpi-4-b-imx219.dtbo + +dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-4-b-imx219.dtb + subdir-y += bcmbca subdir-y += northstar2 subdir-y += stingray diff --git a/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b-imx219.dtso b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b-imx219.dtso new file mode 100644 index 000000000000..33c3219ca4c3 --- /dev/null +++ b/arch/arm64/boot/dts/broadcom/bcm2711-rpi-4-b-imx219.dtso @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Definitions for IMX219 camera module on VC I2C bus + +/dts-v1/; +/plugin/; + +&{/} { + cam1_clk: cam1_clk { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <24000000>; + }; +}; + +&csi1 { + status = "okay"; + + port { + csi_ep: endpoint { + remote-endpoint = <&cam_endpoint>; + clock-lanes = <0>; + data-lanes = <1 2>; + clock-noncontinuous; + }; + }; +}; + +&i2c0 { + status = "okay"; +}; + +&i2c0_1 { + #address-cells = <1>; + #size-cells = <0>; + status = "okay"; + + camera@10 { + compatible = "sony,imx219"; + reg = <0x10>; + + clocks = <&cam1_clk>; + clock-names = "xclk"; + + VANA-supply = <&cam1_reg>; /* 2.8v */ + VDIG-supply = <&cam1_reg>; /* 1.8v */ + VDDL-supply = <&cam1_reg>; /* 1.2v */ + + rotation = <180>; + orientation = <2>; + + port { + cam_endpoint: endpoint { + remote-endpoint = <&csi_ep>; + clock-lanes = <0>; + data-lanes = <1 2>; + clock-noncontinuous; + link-frequencies = /bits/ 64 <456000000>; + }; + }; + }; +}; + +&i2c0mux { + status = "okay"; +};