summaryrefslogtreecommitdiff
path: root/doc/device-tree-bindings
diff options
context:
space:
mode:
authorSongjun Wu <songjun.wu@microchip.com>2017-04-11 16:33:31 +0800
committerAnatolij Gustschin <agust@denx.de>2017-04-14 15:42:42 +0200
commite6a419c5f772f3379fdf834352190a90358022ab (patch)
tree32750045c2abd8a1f775b0968b69532f6789fc9e /doc/device-tree-bindings
parent7927831e21a1ec2f44e0e0eb142ca24be807d202 (diff)
at91: video: DT binding for HLCDC driver
DT binding documentation for atmel HLCDC driver. Signed-off-by: Songjun Wu <songjun.wu@microchip.com>
Diffstat (limited to 'doc/device-tree-bindings')
-rw-r--r--doc/device-tree-bindings/video/atmel-hlcdc.txt42
1 files changed, 42 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/video/atmel-hlcdc.txt b/doc/device-tree-bindings/video/atmel-hlcdc.txt
new file mode 100644
index 00000000000..b378cbf9de8
--- /dev/null
+++ b/doc/device-tree-bindings/video/atmel-hlcdc.txt
@@ -0,0 +1,42 @@
+Atmel HLCDC Framebuffer
+-----------------------------------------------------
+Required properties:
+- compatible :
+ "atmel,sama5d2-hlcdc", "atmel,at91sam9x5-hlcdc".
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- clocks: phandles to input clocks.
+- atmel,vl-bpix: Bits per pixel.
+- atmel,output-mode: LCD Controller Output Mode,
+ The unit is bits per pixel, there are four values,
+ <12>, <16>, <18>, <24>, the default value is <24>.
+- atmel,guard-time: lcd guard time (Delay in frame periods).
+- display-timings: please refer the displaymode.txt.
+
+Example:
+hlcdc: hlcdc@f0000000 {
+ u-boot,dm-pre-reloc;
+ compatible = "atmel,sama5d2-hlcdc";
+ reg = <0xf0000000 0x2000>;
+ clocks = <&lcdc_clk>;
+ atmel,vl-bpix = <4>;
+ atmel,output-mode = <24>;
+ atmel,guard-time = <1>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_pwm &pinctrl_lcd_rgb666>;
+ status = "okay";
+
+ display-timings {
+ 480x272 {
+ clock-frequency = <9000000>;
+ hactive = <480>;
+ vactive = <272>;
+ hsync-len = <41>;
+ hfront-porch = <2>;
+ hback-porch = <2>;
+ vfront-porch = <2>;
+ vback-porch = <2>;
+ vsync-len = <11>;
+ };
+ };
+};