From patchwork Tue Feb 23 17:56:06 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrien Grassein X-Patchwork-Id: 12100657 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 710F5C433DB for ; Tue, 23 Feb 2021 17:56:22 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 1971A64E85 for ; Tue, 23 Feb 2021 17:56:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1971A64E85 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 01B576EA0D; Tue, 23 Feb 2021 17:56:20 +0000 (UTC) Received: from mail-wr1-x433.google.com (mail-wr1-x433.google.com [IPv6:2a00:1450:4864:20::433]) by gabe.freedesktop.org (Postfix) with ESMTPS id 201436E995 for ; Tue, 23 Feb 2021 17:56:15 +0000 (UTC) Received: by mail-wr1-x433.google.com with SMTP id c7so6734440wru.8 for ; Tue, 23 Feb 2021 09:56:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Fz8JrLPMkT7XzSR8iw0swckFELH4bbKO9UQzLaHxj28=; b=sgYop5FXxSudUTh7RZpkxYiXIeFsJ4OZAz+iEv+4P1jE3SlvZy4hGFfF9aNU8SGmkO 7AwRJVwXz3mu8FwpZJGRRXFkVyCfx7HXFgn3lVk8xMuJzMGpdG1QcgEAab9ZhCq7ypYx cLveXMybtivlWB+h5qMuWFWZ6lJZrDsxSvkKNqVFWATbE+T3PQOFuWfT4wy6hw7KM8W5 IJcF511TLwtnHoHTQyZT9kDUZbIIHMwachrknuJJjfdgtMoVg9+yPMuOdeLEjn33CVcQ Ye3r70UxQB76peeHP5iJmh30LLfX/s9zowIyK02hA1aSgZts3/Vb+zCZ4dlNByxlzA91 fTIw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Fz8JrLPMkT7XzSR8iw0swckFELH4bbKO9UQzLaHxj28=; b=FT2O798CP1+OWvb14n5SM3JXThAd9hUFHbqKBaPgkgek3SDBLOxc5cZwVSkuU1NfuP aiS3wQr735sKtvKSL9AokCUBWQqJM4UGaAE+BPBx8NCQbCrgE9/7GSqmdKeSHMfIJJzS /A/udVENIuqc9CTOugKEltc1Ix5OEKcHyjqTm7Q8bj4g2rDQ5BGEQy//g+5NZwMHiQjK zK3IWIJ7cSRF/MeAyckIQZkCSATlpDk0izNC1idNMTzcTdsTQWeTloRw7U1rRVp4lmc0 A0fKTSTg2w8WxzbA7Yq5smayNUfmE+vAvUpAVU54p5zc6dy2IzEj9RTpvtvlGw3vbfcU aclg== X-Gm-Message-State: AOAM533RwIq4pyaTuJEu8kNVMK50or0J5kufmv7pgozUK2i0hREk/ESF 8nrLGgiw8om+ZbDefJgiAwM= X-Google-Smtp-Source: ABdhPJzjcIFilXskzGrhtEqfLv7/lVpHTYUnrt7FdEsPWWoPRLWjZWGinAOiZSuomQE1Tf7036xDWQ== X-Received: by 2002:adf:c101:: with SMTP id r1mr27793261wre.38.1614102973856; Tue, 23 Feb 2021 09:56:13 -0800 (PST) Received: from localhost.localdomain (2a01cb0008bd270084c09ff22cc10cb2.ipv6.abo.wanadoo.fr. [2a01:cb00:8bd:2700:84c0:9ff2:2cc1:cb2]) by smtp.gmail.com with ESMTPSA id g9sm2779815wrp.14.2021.02.23.09.56.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Feb 2021 09:56:13 -0800 (PST) From: Adrien Grassein To: Subject: [PATCH v4 1/2] dt-bindings: display: bridge: Add documentation for LT8912 Date: Tue, 23 Feb 2021 18:56:06 +0100 Message-Id: <20210223175607.431796-2-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210223175607.431796-1-adrien.grassein@gmail.com> References: <20210223175607.431796-1-adrien.grassein@gmail.com> 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@siol.net, narmstrong@baylibre.com, airlied@linux.ie, dri-devel@lists.freedesktop.org, jonas@kwiboo.se, linux-kernel@vger.kernel.org, robert.foss@linaro.org, a.hajda@samsung.com, robh+dt@kernel.org, Laurent.pinchart@ideasonboard.com, Adrien Grassein Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Lontium LT8912 is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein Reviewed-by: Rob Herring --- .../display/bridge/lontium,lt8912.yaml | 102 ++++++++++++++++++ MAINTAINERS | 5 + 2 files changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml new file mode 100644 index 000000000000..1e5a2ad5eb47 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT8912 MIPI to HDMI Bridge + +maintainers: + - Adrien Grassein + +description: | + The LT8912 is a bridge device which convert DSI to HDMI + +properties: + compatible: + enum: + - lontium,lt8912 + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI port for MIPI input + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + data-lanes: true + + required: + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: | + HDMI port, should be connected to a node compatible with the + hdmi-connector binding. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - reset-gpios + - ports + +additionalProperties: false + +examples: + - | + #include + + i2c4 { + #address-cells = <1>; + #size-cells = <0>; + + hdmi-bridge@48 { + compatible = "lontium,lt8912"; + reg = <0x48>; + reset-gpios = <&max7323 0 GPIO_ACTIVE_LOW>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + hdmi_out_in: endpoint { + data-lanes = <0 1 2 3>; + remote-endpoint = <&mipi_dsi_out>; + }; + }; + + port@1 { + reg = <1>; + + endpoint { + remote-endpoint = <&hdmi_in>; + }; + }; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 16ada1a4b751..1e4d49f9dfea 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10460,6 +10460,11 @@ S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git F: drivers/hid/hid-lg-g15.c +LONTIUM LT8912 MIPI TO HDMI BRIDGE +M: Adrien Grassein +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml + LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash M: Sreekanth Reddy From patchwork Tue Feb 23 17:56:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adrien Grassein X-Patchwork-Id: 12100659 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA4A4C43331 for ; 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[2a01:cb00:8bd:2700:84c0:9ff2:2cc1:cb2]) by smtp.gmail.com with ESMTPSA id g9sm2779815wrp.14.2021.02.23.09.56.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Feb 2021 09:56:14 -0800 (PST) From: Adrien Grassein To: Subject: [PATCH v4 2/2] drm/bridge: Introduce LT8912 DSI to HDMI bridge Date: Tue, 23 Feb 2021 18:56:07 +0100 Message-Id: <20210223175607.431796-3-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210223175607.431796-1-adrien.grassein@gmail.com> References: <20210223175607.431796-1-adrien.grassein@gmail.com> 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@siol.net, narmstrong@baylibre.com, airlied@linux.ie, dri-devel@lists.freedesktop.org, jonas@kwiboo.se, linux-kernel@vger.kernel.org, robert.foss@linaro.org, a.hajda@samsung.com, robh+dt@kernel.org, Laurent.pinchart@ideasonboard.com, Adrien Grassein Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Lontium Lt8912 is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein --- MAINTAINERS | 1 + drivers/gpu/drm/bridge/Kconfig | 14 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt8912.c | 764 ++++++++++++++++++++++++ 4 files changed, 780 insertions(+) create mode 100644 drivers/gpu/drm/bridge/lontium-lt8912.c diff --git a/MAINTAINERS b/MAINTAINERS index 1e4d49f9dfea..fda331610c35 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10464,6 +10464,7 @@ LONTIUM LT8912 MIPI TO HDMI BRIDGE M: Adrien Grassein S: Maintained F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml +F: drivers/gpu/drm/bridge/lontium-lt8912.c LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index e4110d6ca7b3..5b36d4b86e3c 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -48,6 +48,20 @@ 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_LT8912 + tristate "Lontium LT8912 DSI/HDMI bridge" + depends on OF + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select REGMAP_I2C + help + Driver for Lontium LT8912 DSI to HDMI bridge + chip driver. + Please say Y if you have such hardware. + + Say M here if you want to support this hardware as a module. + The module will be named "lontium-lt8912". + config DRM_LONTIUM_LT9611 tristate "Lontium LT9611 DSI/HDMI bridge" select SND_SOC_HDMI_CODEC if SND_SOC diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile index 86e7acc76f8d..5a1b201cea1f 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_DRM_CDNS_DSI) += cdns-dsi.o obj-$(CONFIG_DRM_CHRONTEL_CH7033) += chrontel-ch7033.o obj-$(CONFIG_DRM_DISPLAY_CONNECTOR) += display-connector.o +obj-$(CONFIG_DRM_LONTIUM_LT8912) += lontium-lt8912.o obj-$(CONFIG_DRM_LONTIUM_LT9611) += lontium-lt9611.o obj-$(CONFIG_DRM_LONTIUM_LT9611UXC) += lontium-lt9611uxc.o obj-$(CONFIG_DRM_LVDS_CODEC) += lvds-codec.o diff --git a/drivers/gpu/drm/bridge/lontium-lt8912.c b/drivers/gpu/drm/bridge/lontium-lt8912.c new file mode 100644 index 000000000000..11d94da73c37 --- /dev/null +++ b/drivers/gpu/drm/bridge/lontium-lt8912.c @@ -0,0 +1,764 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include