Add documentation for the PXA frambuffer devicetree binding.
Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
---
Since v1: Philipp's review on the whole binding
---
.../devicetree/bindings/video/marvell,pxafb.txt | 80 ++++++++++++++++++++++
1 file changed, 80 insertions(+)
create mode 100644 Documentation/devicetree/bindings/video/marvell,pxafb.txt
diff --git a/Documentation/devicetree/bindings/video/marvell,pxafb.txt b/Documentation/devicetree/bindings/video/marvell,pxafb.txt
new file mode 100644
index 000000000000..4d6bd490680d
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/marvell,pxafb.txt
@@ -0,0 +1,80 @@
+PXA LCDC Framebuffer
+--------------------
+
+Required properties:
+ - compatible :
+ "marvell,pxa2xx-lcdc",
+ - reg : Should contain 1 register ranges(address and length).
+ Can contain an additional register range(address and length)
+ for fixed framebuffer memory. Useful for dedicated memories.
+ - interrupts : framebuffer controller interrupt
+
+Required nodes:
+ - clocks: phandle to input clocks.
+ - port: connection to the LCD panel (see video-interfaces.txt)
+ This nodes must have its properties bus-width and remote-endpoint set.
+ This should be in the board dts.
+
+Example:
+
+ lcd-controller@40500000 {
+ compatible = "marvell,pxa2xx-lcdc";
+ reg = <0x44000000 0x10000>;
+ interrupts = <17>;
+ clocks = <&clks CLK_LCD>;
+ interrupts = <23>;
+ status = "okay";
+
+ port {
+ lcdc_out: endpoint {
+ remote-endpoint = <&panel_in>;
+ bus-width = <16>;
+ };
+ };
+ };
+
+PXA LCDC Display
+----------------
+Required properties (as per of_videomode_helper):
+ - lcd-type: either "mono-stn", "mono-dstn", "color-stn", "color-dstn",
+ "color-tft", "smart-panel"
+
+Optional properties (as per of_videomode_helper):
+ - power-supply: power supply regulator to the LCD to power it on or off
+ (see regulator.txt)
+ - backlight: backlight control (see backlight.txt)
+
+Required nodes:
+ - port: connection to the LCD controller
+ - display-timings: panel timings (see display-timing.txt)
+
+Example:
+ panel {
+ compatible = "toshiba,ltm0305a776";
+ lcd-type = "color-tft";
+
+ power-supply = <&lcd_supply>;
+ backlight = <&lcd_backlight>;
+
+ port {
+ panel_in: endpoint {
+ remote-endpoint = <&lcdc_out>;
+ };
+ };
+
+ display-timings {
+ native-mode = <&timing0>;
+ timing0: 240p {
+ /* 240x320p24 */
+ clock-frequency = <4545000>;
+ hactive = <240>;
+ vactive = <320>;
+ hfront-porch = <4>;
+ hback-porch = <6>;
+ hsync-len = <4>;
+ vback-porch = <5>;
+ vfront-porch = <3>;
+ vsync-len = <2>;
+ };
+ };
+ };
--
2.1.4
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