mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 18:59:44 +00:00
67 lines
2.1 KiB
Text
67 lines
2.1 KiB
Text
|
Device-Tree bindings for tilcdc DRM generic panel output driver
|
||
|
|
|
||
|
|
Required properties:
|
||
|
|
- compatible: value should be "ti,tilcdc,panel".
|
||
|
|
- panel-info: configuration info to configure LCDC correctly for the panel
|
||
|
|
- ac-bias: AC Bias Pin Frequency
|
||
|
|
- ac-bias-intrpt: AC Bias Pin Transitions per Interrupt
|
||
|
|
- dma-burst-sz: DMA burst size
|
||
|
|
- bpp: Bits per pixel
|
||
|
|
- fdd: FIFO DMA Request Delay
|
||
|
|
- sync-edge: Horizontal and Vertical Sync Edge: 0=rising 1=falling
|
||
|
|
- sync-ctrl: Horizontal and Vertical Sync: Control: 0=ignore
|
||
|
|
- raster-order: Raster Data Order Select: 1=Most-to-least 0=Least-to-most
|
||
|
|
- fifo-th: DMA FIFO threshold
|
||
|
|
- display-timings: typical videomode of lcd panel. Multiple video modes
|
||
|
|
can be listed if the panel supports multiple timings, but the 'native-mode'
|
||
|
|
should be the preferred/default resolution. Refer to
|
||
|
|
Documentation/devicetree/bindings/display/panel/display-timing.txt for display
|
||
|
|
timing binding details.
|
||
|
|
|
||
|
|
Optional properties:
|
||
|
|
- backlight: phandle of the backlight device attached to the panel
|
||
|
|
- enable-gpios: GPIO pin to enable or disable the panel
|
||
|
|
|
||
|
|
Recommended properties:
|
||
|
|
- pinctrl-names, pinctrl-0: the pincontrol settings to configure
|
||
|
|
muxing properly for pins that connect to TFP410 device
|
||
|
|
|
||
|
|
Example:
|
||
|
|
|
||
|
|
/* Settings for CDTech_S035Q01 / LCD3 cape: */
|
||
|
|
lcd3 {
|
||
|
|
compatible = "ti,tilcdc,panel";
|
||
|
|
pinctrl-names = "default";
|
||
|
|
pinctrl-0 = <&bone_lcd3_cape_lcd_pins>;
|
||
|
|
backlight = <&backlight>;
|
||
|
|
enable-gpios = <&gpio3 19 0>;
|
||
|
|
|
||
|
|
panel-info {
|
||
|
|
ac-bias = <255>;
|
||
|
|
ac-bias-intrpt = <0>;
|
||
|
|
dma-burst-sz = <16>;
|
||
|
|
bpp = <16>;
|
||
|
|
fdd = <0x80>;
|
||
|
|
sync-edge = <0>;
|
||
|
|
sync-ctrl = <1>;
|
||
|
|
raster-order = <0>;
|
||
|
|
fifo-th = <0>;
|
||
|
|
};
|
||
|
|
display-timings {
|
||
|
|
native-mode = <&timing0>;
|
||
|
|
timing0: 320x240 {
|
||
|
|
hactive = <320>;
|
||
|
|
vactive = <240>;
|
||
|
|
hback-porch = <21>;
|
||
|
|
hfront-porch = <58>;
|
||
|
|
hsync-len = <47>;
|
||
|
|
vback-porch = <11>;
|
||
|
|
vfront-porch = <23>;
|
||
|
|
vsync-len = <2>;
|
||
|
|
clock-frequency = <8000000>;
|
||
|
|
hsync-active = <0>;
|
||
|
|
vsync-active = <0>;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
};
|