[PATCH v6 14/14] arm64: dts: rockchip: Enable eDP0 display on RK3588S EVB1 board

[Dmitry Baryshkov]

On Thu, Jan 23, 2025 at 06:07:47PM +0800, Damon Ding wrote:
> Add the necessary DT changes to enable eDP0 on RK3588S EVB1 board:
> - Set pinctrl of pwm12 for backlight
> - Enable edp0/hdptxphy0/vp2
> - Assign the parent of DCLK_VOP2_SRC to PLL_V0PLL
> - Add aux-bus/panel nodes
> 
> For RK3588, the PLL_V0PLL is specifically designed for the VOP2. This
> means the clock rate of PLL_V0PLL can be adjusted according to the dclk
> rate of relevant VP. It is typically assigned as the dclk source of a
> specific VP when the clock of relevant display mode is unusual, such as
> the eDP panel 'lg,lp079qx1-sp0v' paired with RK3588S EVB1, which has a
> clock rate of 202.02MHz.
> 
> Signed-off-by: Damon Ding <damon.ding at rock-chips.com>
> 
> ---
> 
> Changes in v2:
> - Remove brightness-levels and default-brightness-level properties in
>   backlight node.
> - Add the detail DT changes to commit message.
> 
> Changes in v3:
> - Use aux-bus instead of platform bus for edp-panel.
> 
> Changes in v4:
> - Add comments related to the use of panel compatible "lg,lp079qx1-sp0v"
>   in the commit message.
> 
> Changes in v5:
> - Use "edp-panel" instead of "lg,lp079qx1-sp0v"
> - Remove unnecessary comments in commit message
> - Assign the parent of DCLK_VOP2_SRC to PLL_V0PLL
> 
> Changes in v6:
> - Add PLL_V0PLL related descriptions in commit message
> ---
>  .../boot/dts/rockchip/rk3588s-evb1-v10.dts    | 54 +++++++++++++++++++
>  1 file changed, 54 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-evb1-v10.dts b/arch/arm64/boot/dts/rockchip/rk3588s-evb1-v10.dts
> index bc4077575beb..a8c151b41e21 100644
> --- a/arch/arm64/boot/dts/rockchip/rk3588s-evb1-v10.dts
> +++ b/arch/arm64/boot/dts/rockchip/rk3588s-evb1-v10.dts
> @@ -9,6 +9,7 @@
>  #include <dt-bindings/gpio/gpio.h>
>  #include <dt-bindings/input/input.h>
>  #include <dt-bindings/pinctrl/rockchip.h>
> +#include <dt-bindings/soc/rockchip,vop2.h>
>  #include <dt-bindings/usb/pd.h>
>  #include "rk3588s.dtsi"
>  
> @@ -238,6 +239,41 @@ &combphy2_psu {
>  	status = "okay";
>  };
>  
> +&edp0 {
> +	force-hpd;

Why? Please mention the reason in the commit message.

> +	status = "okay";
> +
> +	aux-bus {
> +		panel {
> +			compatible = "edp-panel";
> +			backlight = <&backlight>;
> +			power-supply = <&vcc3v3_lcd_edp>;
> +
> +			port {
> +				panel_in_edp: endpoint {
> +					remote-endpoint = <&edp_out_panel>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&edp0_in {
> +	edp0_in_vp2: endpoint {
> +		remote-endpoint = <&vp2_out_edp0>;
> +	};
> +};
> +
> +&edp0_out {
> +	edp_out_panel: endpoint {
> +		remote-endpoint = <&panel_in_edp>;
> +	};
> +};
> +
> +&hdptxphy0 {
> +	status = "okay";
> +};
> +
>  &i2c3 {
>  	status = "okay";
>  
> @@ -399,6 +435,7 @@ usbc0_int: usbc0-int {
>  };
>  
>  &pwm12 {
> +	pinctrl-0 = <&pwm12m1_pins>;
>  	status = "okay";
>  };
>  
> @@ -1168,3 +1205,20 @@ usbdp_phy0_dp_altmode_mux: endpoint at 1 {
>  		};
>  	};
>  };
> +
> +&vop_mmu {
> +	status = "okay";
> +};
> +
> +&vop {
> +	assigned-clocks = <&cru DCLK_VOP2_SRC>;
> +	assigned-clock-parents = <&cru PLL_V0PLL>;
> +	status = "okay";
> +};
> +
> +&vp2 {
> +	vp2_out_edp0: endpoint at ROCKCHIP_VOP2_EP_EDP0 {
> +		reg = <ROCKCHIP_VOP2_EP_EDP0>;
> +		remote-endpoint = <&edp0_in_vp2>;
> +	};
> +};
> -- 
> 2.34.1
> 

-- 
With best wishes
Dmitry