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| author | Songjun Wu <songjun.wu@microchip.com> | 2017-04-11 16:33:31 +0800 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2017-04-14 15:42:42 +0200 |
| commit | e6a419c5f772f3379fdf834352190a90358022ab (patch) | |
| tree | 32750045c2abd8a1f775b0968b69532f6789fc9e /doc | |
| parent | 7927831e21a1ec2f44e0e0eb142ca24be807d202 (diff) | |
| download | u-boot-e6a419c5f772f3379fdf834352190a90358022ab.zip u-boot-e6a419c5f772f3379fdf834352190a90358022ab.tar.gz u-boot-e6a419c5f772f3379fdf834352190a90358022ab.tar.bz2 | |
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')
| -rw-r--r-- | doc/device-tree-bindings/video/atmel-hlcdc.txt | 42 |
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 0000000..b378cbf --- /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>; + }; + }; +}; |