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[188.175.152.238]) by smtp.gmail.com with ESMTPSA id f70sm11887595wme.22.2019.07.08.07.56.37 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 08 Jul 2019 07:56:38 -0700 (PDT) From: Josef Lusticky To: sam@ravnborg.org, robh@kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: panel: Add parallel RGB mode for Ilitek ILI9341 panels Date: Mon, 8 Jul 2019 16:56:17 +0200 Message-Id: <20190708145618.26031-2-josef@lusticky.cz> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190708145618.26031-1-josef@lusticky.cz> References: <20190304125033.28841-1-josef@lusticky.cz> <20190708145618.26031-1-josef@lusticky.cz> MIME-Version: 1.0 X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lusticky.cz; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=IPMwGdezaY5SSN4Z7IrPzRqdzP/7qRU/T2EzDQTM89Q=; b=UaRmP7pyvRKI7fEfVZj8wp0XoU5+5R7NcTQ66diOvWxUR4mbg2jRgZJydOXTnuJioP uk+MaVyPlvOpjbxmktiTo1EnOtaleyY6DXkMNDNTwBvzj7jAmxcc/IKc8Qg2iu4TiRsP NF8OeE0e4go4j+K5o2wGBkfFoXZf7txZHviXlQuiIgaKx295EoV7G6vwvBGnYYiGKqKq /+0owAsnNToJXv94gEAeWlxYmQbda4LA31sTrj4SBZPeD+fX1Z8hf8NIQCz+pS6uxak9 JvnzB2na03PnWgNUGGHU8hWlGKpRmmAIczRiPiTNTizNABj2Nq8Ms5KQCy84zalKxFgG FIKw== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: airlied@linux.ie, thierry.reding@gmail.com, Josef Lusticky Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP ILI9341 supports both SPI input mode and parallel RGB input mode. This commit adds parallel RGB input mode bindings. Signed-off-by: Josef Lusticky Reviewed-by: Sam Ravnborg --- .../bindings/display/ilitek,ili9341.txt | 67 ++++++++++++++++--- 1 file changed, 56 insertions(+), 11 deletions(-) diff --git a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt index 169b32e4ee4e..629f38a1d0cd 100644 --- a/Documentation/devicetree/bindings/display/ilitek,ili9341.txt +++ b/Documentation/devicetree/bindings/display/ilitek,ili9341.txt @@ -1,27 +1,72 @@ Ilitek ILI9341 display panels -This binding is for display panels using an Ilitek ILI9341 controller in SPI -mode. +This binding is for display panels using an Ilitek ILI9341 controller. +The display panels are supported in the following graphical input modes: +- SPI input mode + MIPI-DBI Type 3 Option 1 or Option 3 is used to transfer + commands and graphical data +- parallel RGB input mode + MIPI-DBI Type 3 Option 1 or Option 3 is used for commands + MIPI-DPI 18-bit parallel RGB connection is used to transfer + graphical data -Required properties: -- compatible: "adafruit,yx240qv29", "ilitek,ili9341" -- dc-gpios: D/C pin -- reset-gpios: Reset pin + +SPI input mode: The node for this driver must be a child node of a SPI controller, hence -all mandatory properties described in ../spi/spi-bus.txt must be specified. +all mandatory properties described in spi/spi-bus.txt must be specified. + +Required properties in SPI input mode: +- compatible: "adafruit,yx240qv29", "ilitek,ili9341" +- backlight: phandle of the backlight device attached to the panel + +Optional properties in SPI input mode: +- rotation: panel rotation in degrees counter clockwise (0,90,180,270) +- dc-gpios: GPIO spec for the D/C pin, see gpio/gpio.txt +- reset-gpios: GPIO spec for the reset pin, see gpio/gpio.txt + + +Parallel RGB input mode: + +The node for this driver must be a child node of a SPI controller, hence +all mandatory properties described in spi/spi-bus.txt must be specified. + +Required properties in parallel RGB input mode: +- compatible: "displaytech,dt024ctft", "ilitek,ili9341" +- backlight: phandle of the backlight device attached to the panel + +Optional properties in parallel RGB input mode: +- dc-gpios: GPIO spec for the D/C pin, see gpio/gpio.txt +- reset-gpios: GPIO spec for the reset pin, see gpio/gpio.txt -Optional properties: -- rotation: panel rotation in degrees counter clockwise (0,90,180,270) -- backlight: phandle of the backlight device attached to the panel +In parallel RGB input mode, +the device node can contain one 'port' child node with one child +'endpoint' node, according to the bindings defined in +media/video-interfaces.txt. This node should describe panel's video bus. -Example: + +Example in SPI input mode: display@0{ compatible = "adafruit,yx240qv29", "ilitek,ili9341"; reg = <0>; spi-max-frequency = <32000000>; dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>; + backlight = <&backlight>; rotation = <270>; + }; + +Example in parallel RGB input mode: + panel@{ + compatible = "displaytech,dt024ctft", "ilitek,ili9341"; + reg = <0>; + spi-max-frequency = <32000000>; + dc-gpios = <&gpio0 9 GPIO_ACTIVE_HIGH>; + reset-gpios = <&gpio0 8 GPIO_ACTIVE_HIGH>; backlight = <&backlight>; + port { + panel_in: endpoint { + remote-endpoint = <&display_out>; + }; + }; };