70 lines
2.3 KiB
Plaintext
Executable File
70 lines
2.3 KiB
Plaintext
Executable File
Device-Tree bindings for Rockchip SoC display controller (VOP / LCDC)
|
|
VOP (Video Output Process) / LCDC is the Display Controller for the
|
|
ROCKCHIP series of SoCs which transfers the image data from a video memory
|
|
buffer to an external LCD interface.
|
|
|
|
Required properties:
|
|
- compatible: value should be one of the following
|
|
"rockchip,rk3288-lcdc"; /* for RK3288 SoCs */
|
|
"rockchip,rk3368-lcdc"; /* for RK3368 SoCs */
|
|
"rockchip,rk322x-lcdc"; /* for RK322X SoCs */
|
|
"rockchip,rk3399-lcdc"; /* for RK3399 SoCs */
|
|
- rockchip,prop: set the lcdc as primary or extend display.
|
|
- rochchip,pwr18: set the controller IO voltage,0 is 3.3v,1 is 1.8v.
|
|
- reg: physical base address and length of the LCDC registers set.
|
|
- interrupts: interrupt number to the cpu and interrupt proterties.
|
|
- pinctrl-names: must contain a "default" entry.
|
|
- pinctrl-0: pin control group to be used for this controller.
|
|
- pinctrl-1: pin control group to be used for gpio.
|
|
- clocks: must include clock specifiers corresponding to entries in the
|
|
clock-names property.
|
|
- clock-names: list of clock names sorted in the same order as the clocks
|
|
property..
|
|
|
|
Optional Properties:
|
|
- rockchip,debug: printk debug message.
|
|
- rockchip,mirror: the lcdc mirror function.
|
|
- lcd_en:lcd_en: contain power control for lcd.
|
|
- rockchip,power_type: power type,GPIO or REGULATOR.
|
|
- gpios: pin number for gpio.
|
|
- rockchip,delay: delay time after set power.
|
|
|
|
Example:
|
|
|
|
SoC specific DT entry:
|
|
lcdc1: lcdc@ff940000 {
|
|
compatible = "rockchip,rk3288-lcdc";
|
|
rockchip,prop = <PRMRY>;
|
|
rochchip,pwr18 = <0>;
|
|
reg = <0xff940000 0x10000>;
|
|
interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
|
|
pinctrl-names = "default", "gpio";
|
|
pinctrl-0 = <&lcdc0_lcdc>;
|
|
pinctrl-1 = <&lcdc0_gpio>;
|
|
status = "disabled";
|
|
clocks = <&clk_gates15 7>, <&dclk_lcdc1>, <&clk_gates15 8>, <&pd_vop1>;
|
|
clock-names = "aclk_lcdc", "dclk_lcdc", "hclk_lcdc", "pd_lcdc";
|
|
};
|
|
|
|
|
|
Board specific DT entry:
|
|
|
|
&lcdc1 {
|
|
status = "okay";
|
|
power_ctr: power_ctr {
|
|
rockchip,debug = <0>;
|
|
rockchip,mirror = <NO_MIRROR>;
|
|
lcd_en:lcd_en {
|
|
rockchip,power_type = <GPIO>;
|
|
gpios = <&gpio7 GPIO_A3 GPIO_ACTIVE_HIGH>;
|
|
rockchip,delay = <10>;
|
|
};
|
|
lcd_cs:lcd_cs {
|
|
rockchip,power_type = <GPIO>;
|
|
gpios = <&gpio7 GPIO_A4 GPIO_ACTIVE_HIGH>;
|
|
rockchip,delay = <10>;
|
|
};
|
|
};
|
|
};
|
|
|