From patchwork Fri Jan 21 01:05:40 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar Mahadev Lad X-Patchwork-Id: 534415 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B70AC43219 for ; Fri, 21 Jan 2022 01:06:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233999AbiAUBGJ (ORCPT ); Thu, 20 Jan 2022 20:06:09 -0500 Received: from relmlor1.renesas.com ([210.160.252.171]:18363 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229499AbiAUBGJ (ORCPT ); Thu, 20 Jan 2022 20:06:09 -0500 X-IronPort-AV: E=Sophos;i="5.88,303,1635174000"; d="scan'208";a="107143417" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie5.idc.renesas.com with ESMTP; 21 Jan 2022 10:06:05 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 1E528417762A; Fri, 21 Jan 2022 10:06:01 +0900 (JST) From: Lad Prabhakar To: =?utf-8?q?Niklas_S=C3=B6derlund?= , Jacopo Mondi , Philipp Zabel , Mauro Carvalho Chehab , Rob Herring , Laurent Pinchart , Sakari Ailus , Hans Verkuil Cc: Geert Uytterhoeven , linux-media@vger.kernel.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [RFC PATCH v2 1/4] media: dt-bindings: media: Document RZ/G2L CSI-2 block Date: Fri, 21 Jan 2022 01:05:40 +0000 Message-Id: <20220121010543.31385-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20220121010543.31385-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20220121010543.31385-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Document the CSI-2 block which is part of CRU found in Renesas RZ/G2L SoC. Signed-off-by: Lad Prabhakar --- Hi Geert/All, vclk and pclk clocks are shared with CRU both CSI and CRU driver are using pm_runtime. pclk clock is necessary for register access where as vclk clock is only used for calculations. So would you suggest passing vclk as part of clocks (as currently implemented) or pass the vclk clock rate as a dt property. Cheers, Prabhakar v1->v2 * New patch --- .../bindings/media/renesas,rzg2l-csi2.yaml | 151 ++++++++++++++++++ 1 file changed, 151 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml diff --git a/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml new file mode 100644 index 000000000000..bf907768a157 --- /dev/null +++ b/Documentation/devicetree/bindings/media/renesas,rzg2l-csi2.yaml @@ -0,0 +1,151 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (C) 2022 Renesas Electronics Corp. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/renesas,rzg2l-csi2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Renesas RZ/G2L MIPI CSI-2 receiver + +maintainers: + - Lad Prabhakar + +description: + The RZ/G2L CSI-2 receiver device provides MIPI CSI-2 capabilities for the + Renesas RZ/G2L family of devices. MIPI CSI-2 is part of the CRU block which + is used in conjunction with the Image Processing module, which provides the + video capture capabilities. + +properties: + compatible: + oneOf: + - items: + - enum: + - renesas,r9a07g044-csi2 # RZ/G2{L,LC} + - const: renesas,rzg2l-csi2 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-names: + items: + - const: csi2_link + + clocks: + items: + - description: Internal clock for connecting CRU and MIPI + - description: CRU Main clock + - description: CPU Register access clock + + clock-names: + items: + - const: sysclk + - const: vclk + - const: pclk + + power-domains: + maxItems: 1 + + resets: + items: + - description: CRU_CMN_RSTB reset terminal + + reset-names: + items: + - const: cmn-rstb + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: + Input port node, single endpoint describing the CSI-2 transmitter. + + properties: + endpoint: + $ref: video-interfaces.yaml# + unevaluatedProperties: false + + properties: + data-lanes: + minItems: 1 + maxItems: 4 + items: + maximum: 4 + + required: + - clock-lanes + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: + Output port node, Image Processing block connected to the CSI-2 receiver. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - power-domains + - resets + - reset-names + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + csi20: csi2@10830400 { + compatible = "renesas,r9a07g044-csi2", "renesas,rzg2l-csi2"; + reg = <0x10830400 0xfc00>; + interrupts = ; + clocks = <&cpg CPG_MOD R9A07G044_CRU_SYSCLK>, + <&cpg CPG_MOD R9A07G044_CRU_VCLK>, + <&cpg CPG_MOD R9A07G044_CRU_PCLK>; + clock-names = "sysclk", "vclk", "pclk"; + power-domains = <&cpg>; + resets = <&cpg R9A07G044_CRU_CMN_RSTB>; + reset-names = "cmn-rstb"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + csi2_in: endpoint { + clock-lanes = <0>; + data-lanes = <1 2>; + remote-endpoint = <&ov5645_ep>; + }; + }; + + port@1 { + #address-cells = <1>; + #size-cells = <0>; + + reg = <1>; + + csi2cru: endpoint@0 { + reg = <0>; + remote-endpoint = <&crucsi2>; + }; + }; + }; + };