From patchwork Wed May 13 10:05:31 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 186582 Delivered-To: patch@linaro.org Received: by 2002:a92:5b0a:0:0:0:0:0 with SMTP id p10csp313636ilb; Wed, 13 May 2020 03:06:07 -0700 (PDT) X-Google-Smtp-Source: APiQypJ0ucePa8oDaUK8vyDT2Xi3ZKAgb677dgt/AHNnRqihP7Y6PehfSJ55Qh8Ae0cqaL/oOXJ7 X-Received: by 2002:a17:902:b088:: with SMTP id p8mr23804243plr.123.1589364367726; Wed, 13 May 2020 03:06:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589364367; cv=none; d=google.com; s=arc-20160816; b=Y7QF9De3zFS95kIHYDrhtecu7PAOjOj7E6LXueF84OD012d0ZSM8l/gpbqAjJ2ufPc Z2Ir8DX9d5U5Xapdk7MVtRB/uCwNRG7j3v3784+04v4KNUNTTod3lZmGkq+MwLQpWTl1 PDMw/W84T2WbweXH2OH5e7rpm5meOKVtY0cFSXBUGg6gT6hHtQLUFLiRtBsTPZVEXWdO C+Ux+EYh4RQOM2T1uBO1o/+ogEz6AV4nH4bwomzgnTJJNKwWaFV846JSmpJglVJB4a7V F9RrpB0AY+nr72y7zFA1EoeYh5oYoUshRdPW+SPzaiESrAghRnGdE76j/X4BuLZvTSqE b/vA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:cc:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:mime-version:references:in-reply-to:message-id:date :subject:to:from:dkim-signature:delivered-to; bh=AZ4UgiSuMJ73mcvDExqlbqmjCFirFw3kpP2YW3THbfs=; b=mLAHDDr2wmnmfVWSHuRLucXwJglxq69rGqNzVprExI4pnJU2idg5klB96x6EYulL9A rHU0Q95xYlEguYDzNuX6dW6Hu3SVCGQQ5DcnKmf4VTjoZus29O1KvhLEqJqdV9w//pxw bHn9TiExUNdkthcnYOfECd4+/1O8X8Q/9HGywR8/YdI3LuSnBZQUu5/ljwtGkgg7H+Gw ea6UcsDposLpZ+uFW6uSMmbPXEOFQUVuY2yRPMWfyjUm+FAICscBCbeajjc+5LwIr6rZ fymU/bkU+agHZXIL+UVszAaPqc3VzwzBNg/LMf4DG4EYwUvPcMjb0JRmD0L/G/X5NkGP z/Jw== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b=B3R1wJ7G; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from gabe.freedesktop.org (gabe.freedesktop.org. [2610:10:20:722:a800:ff:fe36:1795]) by mx.google.com with ESMTPS id ha3si442008pjb.28.2020.05.13.03.06.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2020 03:06:07 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) client-ip=2610:10:20:722:a800:ff:fe36:1795; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b=B3R1wJ7G; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D70896E135; Wed, 13 May 2020 10:06:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 69AF06E135 for ; Wed, 13 May 2020 10:06:04 +0000 (UTC) Received: from localhost.localdomain (unknown [106.200.233.149]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E968C206B8; Wed, 13 May 2020 10:05:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589364364; bh=f4a7jQYUGO+gefhtNwOgyxXu8SfY9ICLOZ0ZEWYfr1Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B3R1wJ7GK/L3htlT9FId9pUaXL7vqHSMvbj3xYa212Rc5lvpxqzSEgX0J8tzVX+qx y3EWZyr1iH3CcHGPbPlTOKIgxuJ+JhA1K7KHcw0H9ef7m0tDY8/PxA3eXnB00VkFla iF5y4dxlR7eumQ9SUZhvVnGbXx9b99GSPwmhWw74= From: Vinod Koul To: Daniel Vetter , David Airlie , Rob Clark Subject: [PATCH 1/3] dt-bindings: vendor-prefixes: Add Lontium vendor prefix Date: Wed, 13 May 2020 15:35:31 +0530 Message-Id: <20200513100533.42996-2-vkoul@kernel.org> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200513100533.42996-1-vkoul@kernel.org> References: <20200513100533.42996-1-vkoul@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jernej Skrabec , Neil Armstrong , linux-arm-msm@vger.kernel.org, Jonas Karlman , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , Andrzej Hajda , Vinod Koul , Rob Herring , Laurent Pinchart Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Add prefix for Lontium Semiconductor Corporation Signed-off-by: Vinod Koul --- Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++ 1 file changed, 2 insertions(+) -- 2.25.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel Acked-by: Rob Herring diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index d3891386d671..7294852bc47b 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -579,6 +579,8 @@ patternProperties: description: Logic Technologies Limited "^longcheer,.*": description: Longcheer Technology (Shanghai) Co., Ltd. + "^lontium,.*": + description: Lontium Semiconductor Corporation "^loongson,.*": description: Loongson Technology Corporation Limited "^lsi,.*": From patchwork Wed May 13 10:05:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 186583 Delivered-To: patch@linaro.org Received: by 2002:a92:5b0a:0:0:0:0:0 with SMTP id p10csp313703ilb; Wed, 13 May 2020 03:06:12 -0700 (PDT) X-Google-Smtp-Source: APiQypL+DMoDYkRx7YhQSziwRYdPbXpulv0tqkzHzPPv6w83Su1WAsl5zQMDptl0rJD8rztvmFNz X-Received: by 2002:a17:902:7204:: with SMTP id ba4mr17141239plb.161.1589364372704; Wed, 13 May 2020 03:06:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589364372; cv=none; d=google.com; s=arc-20160816; b=0wmhH88vgzg9wVe2/wH33jcBTmMpNucvK5tPrVaUf0oEa/rIkbs7B8Tyud954WCFGY SxRVaAbRnH53VLfNOMoy0eBElFNOjEUBnfpQt12NmX7r+RDJwr0BdMEkFJ5s+0lHRkM6 gRr3jbe33ouA4kKdqYksxETzg2ySzhdgPE05MiFU2gWE7j1GTIiJfD0lYP40NrxtAbq5 KZJb3j4yNePVrIKFGjI04ivHrOeZZqBkF8LS/0U9TqoPlnqO5GD/wAO11FE6sOGmKlbI PuIa04hflJxDRAsftqmZ+WmB8SJavpKVLN8h+6isfRcVswObmpOwiJ6E2ax9VPYWkljk SNSQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; 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[2610:10:20:722:a800:ff:fe36:1795]) by mx.google.com with ESMTPS id h67si3259215pjb.118.2020.05.13.03.06.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2020 03:06:12 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) client-ip=2610:10:20:722:a800:ff:fe36:1795; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b="Hd9/GFqM"; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 2610:10:20:722:a800:ff:fe36:1795 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 523E56E9F4; Wed, 13 May 2020 10:06:11 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 73EE86E9F4 for ; Wed, 13 May 2020 10:06:09 +0000 (UTC) Received: from localhost.localdomain (unknown [106.200.233.149]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id DBC9520575; Wed, 13 May 2020 10:06:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589364369; bh=n8ibRyccY5zE8PGYkmSz/Wdr+0AV8UG6ty9nZ2zTvco=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hd9/GFqMHfctSqzB+U00ibTjR3mPqoDRRY2l3pf1Vov3p5vNZ2jqxzuTO4qBxBVlr /5DQefdb6CybxLrCvozrjws3m2Kvea0jjsoN/vzM/fjh5P5/eAbOh/ElZ+HIaHF47V YIVAup3OvpdvfOBi8SxlOPxlSeeO2A+VpcEtFOZE= From: Vinod Koul To: Daniel Vetter , David Airlie , Rob Clark Subject: [PATCH 2/3] dt-bindings: display: bridge: Add documentation for LT9611 Date: Wed, 13 May 2020 15:35:32 +0530 Message-Id: <20200513100533.42996-3-vkoul@kernel.org> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200513100533.42996-1-vkoul@kernel.org> References: <20200513100533.42996-1-vkoul@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jernej Skrabec , Neil Armstrong , linux-arm-msm@vger.kernel.org, Jonas Karlman , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , Andrzej Hajda , Vinod Koul , Rob Herring , Laurent Pinchart Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Lontium LT9611 is a DSI to HDMI bridge which supports 2 DSI ports and I2S port as input and one HDMI port as output Signed-off-by: Vinod Koul --- .../display/bridge/lontium,lt9611.yaml | 178 ++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml -- 2.25.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel Reviewed-by: Rob Herring diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml new file mode 100644 index 000000000000..77ee8cc35cd8 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt9611.yaml @@ -0,0 +1,178 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt9611.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT9611 2 Port MIPI to HDMI Bridge + +maintainers: + - Vinod Koul + +description: | + The LT9611 is a bridge device which converts DSI to HDMI + +properties: + compatible: + enum: + - lontium,lt9611 + + reg: + maxItems: 1 + description: base I2C address of the device. + + "#sound-dai-cells": + const: 1 + + interrupts: + maxItems: 1 + description: interrupt line for the chip + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + vdd-supply: + description: Regulator for 1.8V MIPI phy power. + + vcc-supply: + description: Regulator for 3.3V IO power. + + ports: + type: object + + properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + port@0: + type: object + additionalProperties: false + + description: | + HDMI port for HDMI output + + properties: + reg: + const: 0 + + patternProperties: + endpoint: + type: object + additionalProperties: false + + properties: + remote-endpoint: true + + required: + - reg + + port@1: + type: object + additionalProperties: false + + description: | + MIPI port-1 for MIPI input + + properties: + reg: + const: 1 + + patternProperties: + endpoint: + type: object + additionalProperties: false + + properties: + remote-endpoint: true + + required: + - reg + + port@2: + type: object + additionalProperties: false + + description: | + MIPI port-2 for MIPI input + + properties: + reg: + const: 2 + + patternProperties: + endpoint: + type: object + additionalProperties: false + + properties: + remote-endpoint: true + + required: + - reg + + required: + - "#address-cells" + - "#size-cells" + - port@0 + - port@1 + +required: + - compatible + - reg + - interrupts + - vdd-supply + - vcc-supply + - ports + +additionalProperties: false + +examples: + - | + #include + #include + + i2c10 { + #address-cells = <1>; + #size-cells = <0>; + + lt9611_codec: hdmi-bridge@3b { + compatible = "lontium,lt9611"; + reg = <0x3b>; + + reset-gpios = <&tlmm 128 GPIO_ACTIVE_HIGH>; + interrupts-extended = <&tlmm 84 IRQ_TYPE_EDGE_FALLING>; + + vdd-supply = <<9611_1v8>; + vcc-supply = <<9611_3v3>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + lt9611_out: endpoint { + remote-endpoint = <&hdmi_con>; + }; + }; + + port@1 { + reg = <1>; + lt9611_a: endpoint { + remote-endpoint = <&dsi0_out>; + }; + }; + + port@2 { + reg = <2>; + lt9611_b: endpoint { + remote-endpoint = <&dsi1_out>; + }; + }; + }; + }; + }; From patchwork Wed May 13 10:05:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vinod Koul X-Patchwork-Id: 186584 Delivered-To: patch@linaro.org Received: by 2002:a92:5b0a:0:0:0:0:0 with SMTP id p10csp313746ilb; Wed, 13 May 2020 03:06:17 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwQ3upLdh/029beYLrpHosRlFyhcat4ZDTLtqVe2uCvZGHxbTo+iMPMq5TZdEQcNNA4gzt1 X-Received: by 2002:a17:90a:df03:: with SMTP id gp3mr3116708pjb.50.1589364377543; 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[131.252.210.177]) by mx.google.com with ESMTPS id az2si2981705pjb.170.2020.05.13.03.06.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2020 03:06:17 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 131.252.210.177 as permitted sender) client-ip=131.252.210.177; Authentication-Results: mx.google.com; dkim=neutral (body hash did not verify) header.i=@kernel.org header.s=default header.b=BYZLqemt; spf=pass (google.com: best guess record for domain of dri-devel-bounces@lists.freedesktop.org designates 131.252.210.177 as permitted sender) smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 461356E9F5; Wed, 13 May 2020 10:06:16 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by gabe.freedesktop.org (Postfix) with ESMTPS id 269856E9F5 for ; Wed, 13 May 2020 10:06:15 +0000 (UTC) Received: from localhost.localdomain (unknown [106.200.233.149]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id CE438206B8; Wed, 13 May 2020 10:06:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589364375; bh=JnVRWc1OBaAcQaafuPR5RodkuhnLhvTsYfNLTRBeGLc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=BYZLqemt+aNvjuyMUJpswPAApfUPSoXfK8sOaT2pV8deZWmvKsZYfrX7gtu1gN5+p bLMIvJ+pGU3vDaADccGEt03gNSgum5gPdQIwzQ1CreSNrHenUik1wUYqXAMDp31hMF Snsi6AVmxO9ykD5tvjb4cjd27kEfQN5oTHkfpGjA= From: Vinod Koul To: Daniel Vetter , David Airlie , Rob Clark Subject: [PATCH 3/3] drm/bridge: Introduce LT9611 DSI to HDMI bridge Date: Wed, 13 May 2020 15:35:33 +0530 Message-Id: <20200513100533.42996-4-vkoul@kernel.org> X-Mailer: git-send-email 2.25.4 In-Reply-To: <20200513100533.42996-1-vkoul@kernel.org> References: <20200513100533.42996-1-vkoul@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jernej Skrabec , Neil Armstrong , linux-arm-msm@vger.kernel.org, Jonas Karlman , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Bjorn Andersson , Andrzej Hajda , Vinod Koul , Rob Herring , Laurent Pinchart Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Lontium Lt9611 is a DSI to HDMI bridge which supports two DSI ports and I2S port as an input and HDMI port as output Co-developed-by: Bjorn Andersson Signed-off-by: Bjorn Andersson Signed-off-by: Vinod Koul --- drivers/gpu/drm/bridge/Kconfig | 13 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lt9611.c | 1113 +++++++++++++++++++++++++++++++ 3 files changed, 1127 insertions(+) create mode 100644 drivers/gpu/drm/bridge/lt9611.c -- 2.25.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel Reported-by: kbuild test robot Reported-by: kbuild test robot diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index aaed2347ace9..5cac15ce2027 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -38,6 +38,19 @@ config DRM_DISPLAY_CONNECTOR on ARM-based platforms. Saying Y here when this driver is not needed will not cause any issue. +config DRM_LONTIUM_LT9611 + tristate "Lontium LT9611 DSI/HDMI bridge" + select SND_SOC_HDMI_CODEC if SND_SOC + depends on OF + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select REGMAP_I2C + help + Driver for Lontium LT9611 DSI to HDMI bridge + chip driver that converts dual DSI and I2S to + HDMI signals + Please say Y if you have such hardware. + config DRM_LVDS_CODEC tristate "Transparent LVDS encoders and decoders support" depends on OF diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile index 6fb062b5b0f0..d2a696e8ca5d 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -1,6 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 obj-$(CONFIG_DRM_CDNS_DSI) += cdns-dsi.o obj-$(CONFIG_DRM_DISPLAY_CONNECTOR) += display-connector.o +obj-$(CONFIG_DRM_LONTIUM_LT9611) += lt9611.o obj-$(CONFIG_DRM_LVDS_CODEC) += lvds-codec.o obj-$(CONFIG_DRM_MEGACHIPS_STDPXXXX_GE_B850V3_FW) += megachips-stdpxxxx-ge-b850v3-fw.o obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o diff --git a/drivers/gpu/drm/bridge/lt9611.c b/drivers/gpu/drm/bridge/lt9611.c new file mode 100644 index 000000000000..e6e7ce43980d --- /dev/null +++ b/drivers/gpu/drm/bridge/lt9611.c @@ -0,0 +1,1113 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + * Copyright (c) 2019-2020. Linaro Limited. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define EDID_SEG_SIZE 256 + +#define LT9611_4LANES 0 + +struct lt9611 { + struct device *dev; + struct drm_bridge bridge; + struct drm_connector connector; + + struct regmap *regmap; + + struct device_node *dsi0_node; + struct device_node *dsi1_node; + struct mipi_dsi_device *dsi0; + struct mipi_dsi_device *dsi1; + + bool ac_mode; + + struct gpio_desc *reset_gpio; + struct gpio_desc *enable_gpio; + + bool power_on; + bool sleep; + + struct regulator_bulk_data supplies[2]; + + struct i2c_client *client; + + enum drm_connector_status status; + + u8 edid_buf[EDID_SEG_SIZE]; + u32 vic; +}; + +#define LT9611_PAGE_CONTROL 0xff + +static const struct regmap_range_cfg lt9611_ranges[] = { + { + .name = "register_range", + .range_min = 0, + .range_max = 0x85ff, + .selector_reg = LT9611_PAGE_CONTROL, + .selector_mask = 0xff, + .selector_shift = 0, + .window_start = 0, + .window_len = 0x100, + }, +}; + +static const struct regmap_config lt9611_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .max_register = 0xffff, + .ranges = lt9611_ranges, + .num_ranges = ARRAY_SIZE(lt9611_ranges), +}; + +struct lt9611_mode { + u16 hdisplay; + u16 vdisplay; + u8 fps; + u8 lanes; + u8 intfs; +}; + +static struct lt9611_mode lt9611_modes[] = { + { 3840, 2160, 30, 4, 2 }, /* 3840x2160 24bit 30Hz 4Lane 2ports */ + { 1920, 1080, 60, 4, 1 }, /* 1080P 24bit 60Hz 4lane 1port */ + { 1920, 1080, 30, 3, 1 }, /* 1080P 24bit 30Hz 3lane 1port */ + { 1920, 1080, 24, 3, 1 }, + { 720, 480, 60, 4, 1 }, + { 720, 576, 50, 2, 1 }, + { 640, 480, 60, 2, 1 }, +}; + +static struct lt9611 *bridge_to_lt9611(struct drm_bridge *bridge) +{ + return container_of(bridge, struct lt9611, bridge); +} + +static struct lt9611 *connector_to_lt9611(struct drm_connector *connector) +{ + return container_of(connector, struct lt9611, connector); +} + +static int lt9611_mipi_input_analog(struct lt9611 *lt9611) +{ + struct reg_sequence reg_cfg[] = { + { 0x8106, 0x40 }, /*port A rx current*/ + { 0x810a, 0xfe }, /*port A ldo voltage set*/ + { 0x810b, 0xbf }, /*enable port A lprx*/ + { 0x8111, 0x40 }, /*port B rx current*/ + { 0x8115, 0xfe }, /*port B ldo voltage set*/ + { 0x8116, 0xbf }, /*enable port B lprx*/ + + { 0x811c, 0x03 }, /*PortA clk lane no-LP mode*/ + { 0x8120, 0x03 }, /*PortB clk lane with-LP mode*/ + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + return 0; +} + +static int lt9611_mipi_input_digital(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + regmap_write(lt9611->regmap, 0x8300, LT9611_4LANES); + + if (mode->hdisplay == 3840) + regmap_write(lt9611->regmap, 0x830a, 0x03); + else + regmap_write(lt9611->regmap, 0x830a, 0x00); + + regmap_write(lt9611->regmap, 0x824f, 0x80); + regmap_write(lt9611->regmap, 0x8250, 0x10); + regmap_write(lt9611->regmap, 0x8302, 0x0a); + regmap_write(lt9611->regmap, 0x8306, 0x0a); + + return 0; +} + +static void lt9611_mipi_video_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + u32 h_total, h_act, hpw, hfp, hss; + u32 v_total, v_act, vpw, vfp, vss; + + h_total = mode->htotal; + v_total = mode->vtotal; + + h_act = mode->hdisplay; + hpw = mode->hsync_end - mode->hsync_start; + hfp = mode->hsync_start - mode->hdisplay; + hss = (mode->hsync_end - mode->hsync_start) + + (mode->htotal - mode->hsync_end); + + v_act = mode->vdisplay; + vpw = mode->vsync_end - mode->vsync_start; + vfp = mode->vsync_start - mode->vdisplay; + vss = (mode->vsync_end - mode->vsync_start) + + (mode->vtotal - mode->vsync_end); + + regmap_write(lt9611->regmap, 0x830d, (u8)(v_total / 256)); + regmap_write(lt9611->regmap, 0x830e, (u8)(v_total % 256)); + + regmap_write(lt9611->regmap, 0x830f, (u8)(v_act / 256)); + regmap_write(lt9611->regmap, 0x8310, (u8)(v_act % 256)); + + regmap_write(lt9611->regmap, 0x8311, (u8)(h_total / 256)); + regmap_write(lt9611->regmap, 0x8312, (u8)(h_total % 256)); + + regmap_write(lt9611->regmap, 0x8313, (u8)(h_act / 256)); + regmap_write(lt9611->regmap, 0x8314, (u8)(h_act % 256)); + + regmap_write(lt9611->regmap, 0x8315, (u8)(vpw % 256)); + regmap_write(lt9611->regmap, 0x8316, (u8)(hpw % 256)); + + regmap_write(lt9611->regmap, 0x8317, (u8)(vfp % 256)); + + regmap_write(lt9611->regmap, 0x8318, (u8)(vss % 256)); + + regmap_write(lt9611->regmap, 0x8319, (u8)(hfp % 256)); + + regmap_write(lt9611->regmap, 0x831a, (u8)(hss / 256)); + regmap_write(lt9611->regmap, 0x831b, (u8)(hss % 256)); +} + +static int lt9611_pcr_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + struct reg_sequence reg_cfg[] = { + { 0x830b, 0x01 }, + { 0x830c, 0x10 }, + { 0x8348, 0x00 }, + { 0x8349, 0x81 }, + + /* stage 1 */ + { 0x8321, 0x4a }, + { 0x8324, 0x71 }, + { 0x8325, 0x30 }, + { 0x832a, 0x01 }, + + /* stage 2 */ + { 0x834a, 0x40 }, + { 0x831d, 0x10 }, + + /* MK limit */ + { 0x832d, 0x38 }, + { 0x8331, 0x08 }, + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + switch (mode->hdisplay) { + case 640: + regmap_write(lt9611->regmap, 0x8326, 0x14); + break; + case 1920: + regmap_write(lt9611->regmap, 0x8326, 0x37); + break; + case 3840: + regmap_write(lt9611->regmap, 0x830b, 0x03); + regmap_write(lt9611->regmap, 0x830c, 0xd0); + regmap_write(lt9611->regmap, 0x8348, 0x03); + regmap_write(lt9611->regmap, 0x8349, 0xe0); + regmap_write(lt9611->regmap, 0x8324, 0x72); + regmap_write(lt9611->regmap, 0x8325, 0x00); + regmap_write(lt9611->regmap, 0x832a, 0x01); + regmap_write(lt9611->regmap, 0x834a, 0x10); + regmap_write(lt9611->regmap, 0x831d, 0x10); + regmap_write(lt9611->regmap, 0x8326, 0x37); + break; + } + + /* pcr rst */ + regmap_write(lt9611->regmap, 0x8011, 0x5a); + regmap_write(lt9611->regmap, 0x8011, 0xfa); + + return 0; +} + +static int lt9611_pll_setup(struct lt9611 *lt9611, + const struct drm_display_mode *mode) +{ + unsigned int pclk = mode->clock; + struct reg_sequence reg_cfg[] = { + /* txpll init */ + { 0x8123, 0x40 }, + { 0x8124, 0x64 }, + { 0x8125, 0x80 }, + { 0x8126, 0x55 }, + { 0x812c, 0x37 }, + { 0x812f, 0x01 }, + { 0x8126, 0x55 }, + { 0x8127, 0x66 }, + { 0x8128, 0x88 }, + }; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); + + if (pclk > 150000) + regmap_write(lt9611->regmap, 0x812d, 0x88); + else if (pclk > 70000) + regmap_write(lt9611->regmap, 0x812d, 0x99); + else + regmap_write(lt9611->regmap, 0x812d, 0xaa); + + regmap_write(lt9611->regmap, 0x82e3, pclk >> 17); /* pclk[19:16] */ + regmap_write(lt9611->regmap, 0x82e4, pclk >> 9); /* pclk[15:8] */ + regmap_write(lt9611->regmap, 0x82e5, pclk >> 1); /* pclk[7:0] */ + + regmap_write(lt9611->regmap, 0x82de, 0x20); + regmap_write(lt9611->regmap, 0x82de, 0xe0); + + regmap_write(lt9611->regmap, 0x8016, 0xf1); + regmap_write(lt9611->regmap, 0x8016, 0xf3); + + return 0; +} + +static int lt9611_video_check(struct lt9611 *lt9611) +{ + u32 v_total, v_act, h_act_a, h_act_b, h_total_sysclk; + unsigned int temp; + int ret; + + /* top module video check */ + + /* v_act */ + ret = regmap_read(lt9611->regmap, 0x8282, &temp); + if (ret) + goto end; + + v_act = temp << 8; + ret = regmap_read(lt9611->regmap, 0x8283, &temp); + if (ret) + goto end; + v_act = v_act + temp; + + /* v_total */ + ret = regmap_read(lt9611->regmap, 0x826c, &temp); + if (ret) + goto end; + v_total = temp << 8; + ret = regmap_read(lt9611->regmap, 0x826d, &temp); + if (ret) + goto end; + v_total = v_total + temp; + + /* h_total_sysclk */ + ret = regmap_read(lt9611->regmap, 0x8286, &temp); + if (ret) + goto end; + h_total_sysclk = temp << 8; + ret = regmap_read(lt9611->regmap, 0x8287, &temp); + if (ret) + goto end; + h_total_sysclk = h_total_sysclk + temp; + + /* h_act_a */ + ret = regmap_read(lt9611->regmap, 0x8382, &temp); + if (ret) + goto end; + h_act_a = temp << 8; + ret = regmap_read(lt9611->regmap, 0x8383, &temp); + if (ret) + goto end; + h_act_a = (h_act_a + temp) / 3; + + /* h_act_b */ + ret = regmap_read(lt9611->regmap, 0x8386, &temp); + if (ret) + goto end; + h_act_b = temp << 8; + ret = regmap_read(lt9611->regmap, 0x8387, &temp); + if (ret) + goto end; + h_act_b = (h_act_b + temp) / 3; + + dev_info(lt9611->dev, + "video check: h_act_a=%d, h_act_b=%d, v_act=%d, v_total=%d, h_total_sysclk=%d\n", + h_act_a, h_act_b, v_act, v_total, h_total_sysclk); + + return 0; + +end: + dev_err(lt9611->dev, "read video check error\n"); + return ret; +} + +static void lt9611_hdmi_tx_digital(struct lt9611 *lt9611) +{ + regmap_write(lt9611->regmap, 0x8443, 0x46 - lt9611->vic); + regmap_write(lt9611->regmap, 0x8447, lt9611->vic); + regmap_write(lt9611->regmap, 0x843d, 0x0a); /* UD1 infoframe */ + + regmap_write(lt9611->regmap, 0x82d6, 0x8c); + regmap_write(lt9611->regmap, 0x82d7, 0x04); +} + +static void lt9611_hdmi_tx_phy(struct lt9611 *lt9611) +{ + struct reg_sequence reg_cfg[] = { + { 0x8130, 0x6a }, + { 0x8131, 0x44 }, /* HDMI DC mode */ + { 0x8132, 0x4a }, + { 0x8133, 0x0b }, + { 0x8134, 0x00 }, + { 0x8135, 0x00 }, + { 0x8136, 0x00 }, + { 0x8137, 0x44 }, + { 0x813f, 0x0f }, + { 0x8140, 0xa0 }, + { 0x8141, 0xa0 }, + { 0x8142, 0xa0 }, + { 0x8143, 0xa0 }, + { 0x8144, 0x0a }, + }; + + /* HDMI AC mode */ + if (lt9611->ac_mode) + reg_cfg[2].def = 0x73; + + regmap_multi_reg_write(lt9611->regmap, reg_cfg, ARRAY_SIZE(reg_cfg)); +} + +static irqreturn_t lt9611_irq_thread_handler(int irq, void *dev_id) +{ + struct lt9611 *lt9611 = dev_id; + unsigned int irq_flag0 = 0; + unsigned int irq_flag3 = 0; + + regmap_read(lt9611->regmap, 0x820f, &irq_flag3); + regmap_read(lt9611->regmap, 0x820c, &irq_flag0); + + pr_debug("%s() irq_flag0: %#x irq_flag3: %#x\n", + __func__, irq_flag0, irq_flag3); + + /* hpd changed low */ + if (irq_flag3 & 0x80) { + dev_info(lt9611->dev, "hdmi cable disconnected\n"); + + regmap_write(lt9611->regmap, 0x8207, 0xbf); + regmap_write(lt9611->regmap, 0x8207, 0x3f); + } + /* hpd changed high */ + if (irq_flag3 & 0x40) { + dev_info(lt9611->dev, "hdmi cable connected\n"); + + regmap_write(lt9611->regmap, 0x8207, 0x7f); + regmap_write(lt9611->regmap, 0x8207, 0x3f); + } + + if (irq_flag3 & 0xc0) + drm_kms_helper_hotplug_event(lt9611->bridge.dev); + + /* video input changed */ + if (irq_flag0 & 0x01) { + dev_info(lt9611->dev, "video input changed\n"); + regmap_write(lt9611->regmap, 0x829e, 0xff); + regmap_write(lt9611->regmap, 0x829e, 0xf7); + regmap_write(lt9611->regmap, 0x8204, 0xff); + regmap_write(lt9611->regmap, 0x8204, 0xfe); + } + + return IRQ_HANDLED; +} + +static void lt9611_enable_hpd_interrupts(struct lt9611 *lt9611) +{ + unsigned int val; + + dev_dbg(lt9611->dev, "enabling hpd interrupts\n"); + + regmap_read(lt9611->regmap, 0x8203, &val); + + val &= ~0xc0; + regmap_write(lt9611->regmap, 0x8203, val); + regmap_write(lt9611->regmap, 0x8207, 0xff); //clear + regmap_write(lt9611->regmap, 0x8207, 0x3f); +} + +static void lt9611_sleep_setup(struct lt9611 *lt9611) +{ + struct reg_sequence sleep_setup[] = { + { 0x8024, 0x76 }, + { 0x8023, 0x01 }, + { 0x8157, 0x03 }, //set addr pin as output + { 0x8149, 0x0b }, + { 0x8151, 0x30 }, //disable IRQ + { 0x8102, 0x48 }, //MIPI Rx power down + { 0x8123, 0x80 }, + { 0x8130, 0x00 }, + { 0x8100, 0x01 }, //bandgap power down + { 0x8101, 0x00 }, //system clk power down + }; + + dev_dbg(lt9611->dev, "sleep\n"); + + regmap_multi_reg_write(lt9611->regmap, + sleep_setup, ARRAY_SIZE(sleep_setup)); + lt9611->sleep = true; +} + +static int lt9611_power_on(struct lt9611 *lt9611) +{ + int ret; + const struct reg_sequence seq[] = { + /* LT9611_System_Init */ + { 0x8101, 0x18 }, /* sel xtal clock */ + + /* timer for frequency meter */ + { 0x821b, 0x69 }, /*timer 2*/ + { 0x821c, 0x78 }, + { 0x82cb, 0x69 }, /*timer 1 */ + { 0x82cc, 0x78 }, + + /* irq init */ + { 0x8251, 0x01 }, + { 0x8258, 0x0a }, /* hpd irq */ + { 0x8259, 0x80 }, /* hpd debounce width */ + { 0x829e, 0xf7 }, /* video check irq */ + + /* power consumption for work */ + { 0x8004, 0xf0 }, + { 0x8006, 0xf0 }, + { 0x800a, 0x80 }, + { 0x800b, 0x40 }, + { 0x800d, 0xef }, + { 0x8011, 0xfa }, + }; + + if (lt9611->power_on) + return 0; + + dev_dbg(lt9611->dev, "power on\n"); + + ret = regmap_multi_reg_write(lt9611->regmap, seq, ARRAY_SIZE(seq)); + if (!ret) + lt9611->power_on = true; + + return ret; +} + +static int lt9611_power_off(struct lt9611 *lt9611) +{ + int ret; + + dev_dbg(lt9611->dev, "power off\n"); + + ret = regmap_write(lt9611->regmap, 0x8130, 0x6a); + if (!ret) + lt9611->power_on = false; + + return ret; +} + +static void lt9611_reset(struct lt9611 *lt9611) +{ + gpiod_set_value_cansleep(lt9611->reset_gpio, 1); + msleep(20); + gpiod_set_value_cansleep(lt9611->reset_gpio, 0); + msleep(20); + gpiod_set_value_cansleep(lt9611->reset_gpio, 1); + msleep(100); +} + +static void lt9611_assert_5v(struct lt9611 *lt9611) +{ + if (!lt9611->enable_gpio) + return; + + gpiod_set_value_cansleep(lt9611->enable_gpio, 1); + msleep(20); +} + +static int lt9611_regulator_init(struct lt9611 *lt9611) +{ + int ret; + + lt9611->supplies[0].supply = "vdd"; + lt9611->supplies[1].supply = "vcc"; + ret = devm_regulator_bulk_get(lt9611->dev, 2, lt9611->supplies); + if (ret < 0) + return ret; + + return regulator_set_load(lt9611->supplies[0].consumer, 300000); +} + +static int lt9611_regulator_enable(struct lt9611 *lt9611) +{ + int ret; + + ret = regulator_enable(lt9611->supplies[0].consumer); + if (ret < 0) + return ret; + + usleep_range(1000, 10000); + + ret = regulator_enable(lt9611->supplies[1].consumer); + if (ret < 0) { + regulator_disable(lt9611->supplies[0].consumer); + return ret; + } + + return 0; +} + +static struct lt9611_mode *lt9611_find_mode(const struct drm_display_mode *mode) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(lt9611_modes); i++) { + if (lt9611_modes[i].hdisplay == mode->hdisplay && + lt9611_modes[i].vdisplay == mode->vdisplay && + lt9611_modes[i].fps == drm_mode_vrefresh(mode)) { + return <9611_modes[i]; + } + } + + return NULL; +} + +/* connector funcs */ +static enum drm_connector_status +lt9611_connector_detect(struct drm_connector *connector, bool force) +{ + struct lt9611 *lt9611 = connector_to_lt9611(connector); + unsigned int reg_val = 0; + int connected = 0; + + regmap_read(lt9611->regmap, 0x825e, ®_val); + connected = (reg_val & BIT(2)); + dev_dbg(lt9611->dev, "connected = %x\n", connected); + + lt9611->status = connected ? connector_status_connected : + connector_status_disconnected; + + return lt9611->status; +} + +static int lt9611_read_edid(struct lt9611 *lt9611) +{ + unsigned int temp; + int ret = 0; + int i, j; + + memset(lt9611->edid_buf, 0, EDID_SEG_SIZE); + + regmap_write(lt9611->regmap, 0x8503, 0xc9); + + /* 0xA0 is EDID device address */ + regmap_write(lt9611->regmap, 0x8504, 0xa0); + /* 0x00 is EDID offset address */ + regmap_write(lt9611->regmap, 0x8505, 0x00); + /* length for read */ + regmap_write(lt9611->regmap, 0x8506, 0x20); + regmap_write(lt9611->regmap, 0x8514, 0x7f); + + for (i = 0 ; i < 8 ; i++) { + /* offset address */ + regmap_write(lt9611->regmap, 0x8505, i * 32); + regmap_write(lt9611->regmap, 0x8507, 0x36); + regmap_write(lt9611->regmap, 0x8507, 0x31); + regmap_write(lt9611->regmap, 0x8507, 0x37); + usleep_range(5000, 10000); + + regmap_read(lt9611->regmap, 0x8540, &temp); + + if (temp & 0x02) { /*KEY_DDC_ACCS_DONE=1*/ + for (j = 0; j < 32; j++) { + regmap_read(lt9611->regmap, 0x8583, &temp); + lt9611->edid_buf[i * 32 + j] = temp; + } + } else if (temp & 0x50) { /* DDC No Ack or Abitration lost */ + dev_err(lt9611->dev, "read edid failed: no ack\n"); + ret = -EIO; + goto end; + } else { + dev_err(lt9611->dev, + "read edid failed: access not done\n"); + ret = -EIO; + goto end; + } + } + + dev_dbg(lt9611->dev, "read edid succeeded, checksum = 0x%x\n", + lt9611->edid_buf[255]); + +end: + regmap_write(lt9611->regmap, 0x8507, 0x1f); + return ret; +} + +/* TODO: add support for more extension blocks */ +static int +lt9611_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len) +{ + struct lt9611 *lt9611 = data; + int ret; + + dev_dbg(lt9611->dev, "get edid block: block=%d, len=%d\n", + block, (int)len); + + if (len > 128) + return -EINVAL; + + /* support up to 1 extension block */ + if (block > 1) + return -EINVAL; + + if (block == 0) { + /* always read 2 edid blocks once */ + ret = lt9611_read_edid(lt9611); + if (ret) { + dev_err(lt9611->dev, "edid read failed\n"); + return ret; + } + } + + if (block % 2 == 0) + memcpy(buf, lt9611->edid_buf, len); + else + memcpy(buf, lt9611->edid_buf + 128, len); + + return 0; +} + +static int lt9611_connector_get_modes(struct drm_connector *connector) +{ + struct lt9611 *lt9611 = connector_to_lt9611(connector); + unsigned int count; + struct edid *edid; + + dev_dbg(lt9611->dev, "get modes\n"); + + lt9611_power_on(lt9611); + edid = drm_do_get_edid(connector, lt9611_get_edid_block, lt9611); + drm_connector_update_edid_property(connector, edid); + count = drm_add_edid_modes(connector, edid); + kfree(edid); + + return count; +} + +static enum drm_mode_status +lt9611_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + + return lt9611_mode ? MODE_OK : MODE_BAD; +} + +/* bridge funcs */ +static void lt9611_bridge_enable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + dev_dbg(lt9611->dev, "bridge enable\n"); + + if (lt9611_power_on(lt9611)) { + dev_err(lt9611->dev, "power on failed\n"); + return; + } + + dev_dbg(lt9611->dev, "video on\n"); + + lt9611_mipi_input_analog(lt9611); + lt9611_hdmi_tx_digital(lt9611); + lt9611_hdmi_tx_phy(lt9611); + + msleep(500); + + lt9611_video_check(lt9611); + + /* Enable HDMI output */ + regmap_write(lt9611->regmap, 0x8130, 0xea); +} + +static void lt9611_bridge_disable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + int ret; + + dev_dbg(lt9611->dev, "bridge disable\n"); + + /* Disable HDMI output */ + ret = regmap_write(lt9611->regmap, 0x8130, 0x6a); + if (ret) { + dev_err(lt9611->dev, "video on failed\n"); + return; + } + + if (lt9611_power_off(lt9611)) { + dev_err(lt9611->dev, "power on failed\n"); + return; + } +} + +static struct +drm_connector_helper_funcs lt9611_bridge_connector_helper_funcs = { + .get_modes = lt9611_connector_get_modes, + .mode_valid = lt9611_connector_mode_valid, +}; + +static const struct drm_connector_funcs lt9611_bridge_connector_funcs = { + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = lt9611_connector_detect, + .destroy = drm_connector_cleanup, + .reset = drm_atomic_helper_connector_reset, + .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, +}; + +static struct mipi_dsi_device *lt9611_attach_dsi(struct lt9611 *lt9611, + struct device_node *dsi_node) +{ + const struct mipi_dsi_device_info info = { "lt9611", 0, NULL }; + struct mipi_dsi_device *dsi; + struct mipi_dsi_host *host; + int ret; + + host = of_find_mipi_dsi_host_by_node(dsi_node); + if (!host) { + dev_err(lt9611->dev, "failed to find dsi host\n"); + return ERR_PTR(-EPROBE_DEFER); + } + + dsi = mipi_dsi_device_register_full(host, &info); + if (IS_ERR(dsi)) { + dev_err(lt9611->dev, "failed to create dsi device\n"); + return dsi; + } + + dsi->lanes = 4; + dsi->format = MIPI_DSI_FMT_RGB888; + dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE | + MIPI_DSI_MODE_VIDEO_HSE; + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(lt9611->dev, "failed to attach dsi to host\n"); + mipi_dsi_device_unregister(dsi); + return ERR_PTR(ret); + } + + return dsi; +} + +static int lt9611_bridge_attach(struct drm_bridge *bridge, + enum drm_bridge_attach_flags flags) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + int ret; + + dev_dbg(lt9611->dev, "bridge attach\n"); + + ret = drm_connector_init(bridge->dev, <9611->connector, + <9611_bridge_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA); + if (ret) { + DRM_ERROR("Failed to initialize connector with drm\n"); + return ret; + } + + drm_connector_helper_add(<9611->connector, + <9611_bridge_connector_helper_funcs); + drm_connector_attach_encoder(<9611->connector, bridge->encoder); + + if (!bridge->encoder) { + DRM_ERROR("Parent encoder object not found"); + return -ENODEV; + } + + /* Attach primary DSI */ + lt9611->dsi0 = lt9611_attach_dsi(lt9611, lt9611->dsi0_node); + if (IS_ERR(lt9611->dsi0)) + return PTR_ERR(lt9611->dsi0); + + /* Attach secondary DSI, if specified */ + if (lt9611->dsi1_node) { + lt9611->dsi1 = lt9611_attach_dsi(lt9611, lt9611->dsi1_node); + if (IS_ERR(lt9611->dsi1)) { + ret = PTR_ERR(lt9611->dsi1); + goto err_unregister_dsi0; + } + } + + return 0; + +err_unregister_dsi0: + mipi_dsi_device_unregister(lt9611->dsi0); + + return ret; +} + +static void lt9611_bridge_detach(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + if (lt9611->dsi1) { + mipi_dsi_detach(lt9611->dsi1); + mipi_dsi_device_unregister(lt9611->dsi1); + } + + mipi_dsi_detach(lt9611->dsi0); + mipi_dsi_device_unregister(lt9611->dsi0); +} + +static enum drm_mode_status +lt9611_bridge_mode_valid(struct drm_bridge *bridge, + const struct drm_display_mode *mode) +{ + struct lt9611_mode *lt9611_mode = lt9611_find_mode(mode); + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + if (lt9611_mode->intfs > 1 && !lt9611->dsi1) + return MODE_PANEL; + else + return MODE_OK; +} + +static void lt9611_bridge_pre_enable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + dev_dbg(lt9611->dev, "bridge pre_enable\n"); + + if (!lt9611->sleep) + return; + + lt9611_reset(lt9611); + regmap_write(lt9611->regmap, 0x80ee, 0x01); + + lt9611->sleep = false; +} + +static void lt9611_bridge_post_disable(struct drm_bridge *bridge) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + + dev_dbg(lt9611->dev, "bridge post_disable\n"); + + lt9611_sleep_setup(lt9611); +} + +static void lt9611_bridge_mode_set(struct drm_bridge *bridge, + const struct drm_display_mode *mode, + const struct drm_display_mode *adj_mode) +{ + struct lt9611 *lt9611 = bridge_to_lt9611(bridge); + struct hdmi_avi_infoframe avi_frame; + int ret; + + dev_dbg(lt9611->dev, "bridge mode_set: hdisplay=%d, vdisplay=%d, vrefresh=%d, clock=%d\n", + adj_mode->hdisplay, adj_mode->vdisplay, + adj_mode->vrefresh, adj_mode->clock); + + lt9611_bridge_pre_enable(bridge); + + lt9611_mipi_input_digital(lt9611, mode); + lt9611_pll_setup(lt9611, mode); + lt9611_mipi_video_setup(lt9611, mode); + lt9611_pcr_setup(lt9611, mode); + + ret = drm_hdmi_avi_infoframe_from_display_mode(&avi_frame, + <9611->connector, + mode); + if (!ret) + lt9611->vic = avi_frame.video_code; +} + +static const struct drm_bridge_funcs lt9611_bridge_funcs = { + .attach = lt9611_bridge_attach, + .detach = lt9611_bridge_detach, + .mode_valid = lt9611_bridge_mode_valid, + .enable = lt9611_bridge_enable, + .disable = lt9611_bridge_disable, + .post_disable = lt9611_bridge_post_disable, + .mode_set = lt9611_bridge_mode_set, +}; + +static int lt9611_parse_dt(struct device *dev, + struct lt9611 *lt9611) +{ + lt9611->dsi0_node = of_graph_get_remote_node(dev->of_node, 1, -1); + if (!lt9611->dsi0_node) { + DRM_DEV_ERROR(dev, "failed to get remote node for primary dsi\n"); + return -ENODEV; + } + + lt9611->dsi1_node = of_graph_get_remote_node(dev->of_node, 2, -1); + + lt9611->ac_mode = of_property_read_bool(dev->of_node, "lt,ac-mode"); + dev_dbg(lt9611->dev, "ac_mode=%d\n", lt9611->ac_mode); + + return 0; +} + +static int lt9611_gpio_init(struct lt9611 *lt9611) +{ + struct device *dev = lt9611->dev; + + lt9611->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); + if (IS_ERR(lt9611->reset_gpio)) { + dev_err(dev, "failed to acquire reset gpio\n"); + return PTR_ERR(lt9611->reset_gpio); + } + + lt9611->enable_gpio = devm_gpiod_get_optional(dev, "enable", + GPIOD_OUT_LOW); + if (IS_ERR(lt9611->enable_gpio)) { + dev_err(dev, "failed to acquire enable gpio\n"); + return PTR_ERR(lt9611->enable_gpio); + } + + return 0; +} + +static int lt9611_read_device_rev(struct lt9611 *lt9611) +{ + unsigned int rev; + int ret; + + regmap_write(lt9611->regmap, 0x80ee, 0x01); + ret = regmap_read(lt9611->regmap, 0x8002, &rev); + if (ret) + dev_err(lt9611->dev, "failed to read revision: %d\n", ret); + + dev_info(lt9611->dev, "LT9611 revision: 0x%x\n", rev); + + return ret; +} + +static int lt9611_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct lt9611 *lt9611; + struct device *dev = &client->dev; + int ret; + + if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) { + dev_err(dev, "device doesn't support I2C\n"); + return -ENODEV; + } + + lt9611 = devm_kzalloc(dev, sizeof(*lt9611), GFP_KERNEL); + if (!lt9611) + return -ENOMEM; + + lt9611->dev = &client->dev; + lt9611->client = client; + lt9611->sleep = false; + + lt9611->regmap = devm_regmap_init_i2c(client, <9611_regmap_config); + if (IS_ERR(lt9611->regmap)) { + DRM_ERROR("regmap i2c init failed\n"); + return PTR_ERR(lt9611->regmap); + } + + ret = lt9611_parse_dt(&client->dev, lt9611); + if (ret) { + dev_err(dev, "failed to parse device tree\n"); + return ret; + } + + ret = lt9611_gpio_init(lt9611); + if (ret < 0) + return ret; + + ret = lt9611_regulator_init(lt9611); + if (ret < 0) + return ret; + + lt9611_assert_5v(lt9611); + + ret = lt9611_regulator_enable(lt9611); + if (ret) + return ret; + + lt9611_reset(lt9611); + + ret = lt9611_read_device_rev(lt9611); + if (ret) { + dev_err(dev, "failed to read chip rev\n"); + goto err_disable_regulators; + } + + ret = devm_request_threaded_irq(dev, client->irq, NULL, + lt9611_irq_thread_handler, + IRQF_ONESHOT, "lt9611", lt9611); + if (ret) { + dev_err(dev, "failed to request irq\n"); + goto err_disable_regulators; + } + + i2c_set_clientdata(client, lt9611); + + lt9611->bridge.funcs = <9611_bridge_funcs; + lt9611->bridge.of_node = client->dev.of_node; + + drm_bridge_add(<9611->bridge); + + lt9611_enable_hpd_interrupts(lt9611); + + return 0; + +err_disable_regulators: + regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies); + + of_node_put(lt9611->dsi0_node); + of_node_put(lt9611->dsi1_node); + + return ret; +} + +static int lt9611_remove(struct i2c_client *client) +{ + struct lt9611 *lt9611 = i2c_get_clientdata(client); + + disable_irq(client->irq); + drm_bridge_remove(<9611->bridge); + + regulator_bulk_disable(ARRAY_SIZE(lt9611->supplies), lt9611->supplies); + + of_node_put(lt9611->dsi0_node); + of_node_put(lt9611->dsi1_node); + + return 0; +} + +static struct i2c_device_id lt9611_id[] = { + { "lontium,lt9611", 0}, + {} +}; + +static const struct of_device_id lt9611_match_table[] = { + {.compatible = "lontium,lt9611"}, + {} +}; +MODULE_DEVICE_TABLE(of, lt9611_match_table); + +static struct i2c_driver lt9611_driver = { + .driver = { + .name = "lt9611", + .of_match_table = lt9611_match_table, + }, + .probe = lt9611_probe, + .remove = lt9611_remove, + .id_table = lt9611_id, +}; +module_i2c_driver(lt9611_driver); + +MODULE_LICENSE("GPL v2");