From: yxj <yxj@rock-chips.com>
Date: Wed, 7 May 2014 03:23:49 +0000 (+0800)
Subject: add devicetree bindings for rk screen
X-Git-Tag: firefly_0821_release~5337
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3bb54a06c7d3dbca7015f846f1ec3798c4202765;p=firefly-linux-kernel-4.4.55.git

add devicetree bindings for rk screen
---

diff --git a/Documentation/devicetree/bindings/video/display-timing.txt b/Documentation/devicetree/bindings/video/display-timing.txt
index 150038552bc3..c6c1830ff9c5 100644
--- a/Documentation/devicetree/bindings/video/display-timing.txt
+++ b/Documentation/devicetree/bindings/video/display-timing.txt
@@ -21,7 +21,13 @@ required properties:
    vfront-porch, vback-porch, vsync-len: vertical display timing parameters in
    lines
  - clock-frequency: display clock in Hz
-
+ - screen-type: screen interface type,such as SCREEN_LVDS/SCREEN_RGB/SCREEN_DEP/SCREEN_MIPI,
+		defined in include/dt-bindings/rkfb/rk_fb.h,this is used on RockChip platform
+ - out-face :   screen data width, such as OUT_P888/OUT_D888_P666/OUT_P666/OUT_P565,
+		defined in include/dt-bindings/rkfb/rk_fb.h,this is used on RockChip platform
+ - lvds-format: lvds data format for lvds screen,such as LVDS_8BIT_1/2/3/LVDS_6BIT,
+		defined in include/dt-bindings/rkfb/rk_fb.h,this is used on RockChip platform
+ - swap-rb/rg/gb: set to 1 if some screen rgb need to swap,this is used on RockChip platform
 optional properties:
  - hsync-active: hsync pulse is active low/high/ignored
  - vsync-active: vsync pulse is active low/high/ignored
diff --git a/Documentation/devicetree/bindings/video/rockchip_fb.txt b/Documentation/devicetree/bindings/video/rockchip_fb.txt
index 9fff601c67b9..4b86bb657086 100755
--- a/Documentation/devicetree/bindings/video/rockchip_fb.txt
+++ b/Documentation/devicetree/bindings/video/rockchip_fb.txt
@@ -12,4 +12,54 @@ DT entry:
 		compatible = "rockchip,rk-fb";
 		rockchip,disp-mode = <DUAL>;
 	};
-        
+ 
+Device-Tree bindings for RockChip screen driver
+
+Required properties:
+- compatible: value should be "rockchip,screen"
+- display-timings: value should be disp_timings, which defined in
+		lcd-xxx.dtsi file,the file should include by your board dts
+
+Example:
+	creen: rk_screen{
+                        compatible = "rockchip,screen";
+			display-timings = <&disp_timings>;
+        };
+
+/*
+ * RockChip. LCD_B101ew05 lcd-b101ew05.dtsi
+ *
+ */
+
+/ {
+
+                disp_timings: display-timings {
+                        native-mode = <&timing0>;
+                        timing0: timing0 {
+                                screen-type = <SCREEN_LVDS>;
+                                lvds-format = <LVDS_8BIT_2>;
+                                out-face    = <OUT_D888_P666>;
+                                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>;
+                                swap-rb = <0>;
+                                swap-rg = <0>;
+                                swap-gb = <0>;
+                        };
+               };
+};
+
+
+
+
+note: reference for display-timing.txt for display-timing bindings