linux-kernel - [PATCH 2/9] Add devicetree bindings for panels used by the Rockchip DRM

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Date:	Mon,  4 Aug 2014 12:47:00 +0800
From:	mark yao <yzq@...k-chips.com>
To:	heiko@...ech.de, Rob Clark <robdclark@...il.com>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	David Airlie <airlied@...ux.ie>,
	Grant Likely <grant.likely@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	John Stultz <john.stultz@...aro.org>,
	Rom Lemarchand <romlem@...gle.com>
Cc:	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
	linux-api@...r.kernel.org, olof@...om.net, djkurtz@...omium.org,
	xjq@...k-chips.com, kfx@...k-chips.com, cym@...k-chips.com,
	cf@...k-chips.com, zyw@...k-chips.com, zwl@...k-chips.com,
	xxm@...k-chips.com, huangtao@...k-chips.com,
	kever.yang@...k-chips.com, zhangqing@...k-chips.com,
	yxj@...k-chips.com, wxt@...k-chips.com, xw@...k-chips.com,
	mark yao <yzq@...k-chips.com>
Subject: [PATCH 2/9] Add devicetree bindings for panels used by the Rockchip DRM

Signed-off-by: mark yao <yzq@...k-chips.com>
---
 .../devicetree/bindings/video/rockchip-panel.txt   |   52 ++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/video/rockchip-panel.txt

diff --git a/Documentation/devicetree/bindings/video/rockchip-panel.txt b/Documentation/devicetree/bindings/video/rockchip-panel.txt
new file mode 100644
index 0000000..9fc200a
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/rockchip-panel.txt
@@ -0,0 +1,52 @@
+Rockchip LCD Display interface
+================================
+Required properties:
+-compatible: "rockchip,rockchip-panel";
+
+- rockchip,output-face: lcdc display mode value should set as following
+		"r8g8b8": 24bit display port, R8 G8 B8
+		"r6g6b6": 18bit display port, R6 G6 B6
+		"r5g6b5": 16bit display port, R5 G6 B5
+
+Optional properties:
+- display-timings: timings for the connected panel as described by
+	Documentation/devicetree/bindings/video/display-timing.txt
+Optional properties:
+- rockchip,power-gpios: gpio to power on or off the LCD (as many as needed)
+- lcdc-vcc18: Defined if power supply of lcd controller is 1.8v,
+		Not defined if power supply of lcd controller is 3.3v.
+- output-dither: support dithering the output color.
+- color-swap-rb: swap R and B color per pixel.
+- color-swap-rg: swap R and G color per pixel.
+- color-swap-bg: swap B and G color per pixel.
+
+Example:
+	panel {
+		compatible = "rockchip,rockchip-panel";
+		rockchip,output-face = "r6g6b6";
+
+		enable-gpios = <&gpio7 3 GPIO_ACTIVE_HIGH
+				&gpio7 4 GPIO_ACTIVE_HIGH>;
+		output-dither;
+
+		display-timings {
+			native-mode = <&timing_disp0>;
+
+			timing_disp0: 1280x800 {
+				clock-frequency = <71000000>;
+				hactive = <1280>;
+				vactive = <800>;
+				hback-porch = <100>;
+				hfront-porch = <18>;
+				vback-porch = <8>;
+				vfront-porch = <6>;
+				hsync-len = <10>;
+				vsync-len = <2>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <0>;
+				pixelclk-active = <0>;
+			};
+		};
+
+	};
-- 
1.7.9.5


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