Re: (EXT) [PATCH v0 09/10] arm64: dts: imx8mp: add HDMI display pipeline

[Alexander Stein <alexander.stein@ew.tq-group.com>]

Hi Lucas,

Am Mittwoch, 6. April 2022, 18:01:22 CEST schrieb Lucas Stach:
> This adds the DT nodes for all the peripherals that make up the
> HDMI display pipeline.
> 
> Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 80 +++++++++++++++++++++++
>  1 file changed, 80 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index
> 6b7b5ba32b48..a41da99e9537 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -1087,6 +1087,86 @@ irqsteer_hdmi: interrupt-controller@32fc2000 {
>  				clock-names = "ipg";
>  				power-domains = <&hdmi_blk_ctrl 
IMX8MP_HDMIBLK_PD_IRQSTEER>;
>  			};
> +
> +			hdmi_pvi: display-bridge@32fc4000 {
> +				compatible = "fsl,imx8mp-hdmi-
pvi";
> +				reg = <0x32fc4000 0x40>;
> +				power-domains = <&hdmi_blk_ctrl 
IMX8MP_HDMIBLK_PD_PVI>;

This should be disabled by default as well. Unless 'hdmi_tx: hdmi@32fd8000' is 
enabled, this results in the warning:
imx-hdmi-pvi: probe of 32fc4000.display-bridge failed with error -22

Best regards
Alexander

> +
> +				ports {
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +
> +					port@0 {
> +						reg = <0>;
> +						
pvi_from_lcdif3: endpoint {
> +							
remote-endpoint = <&lcdif3_to_pvi>;
> +						};
> +					};
> +
> +					port@1 {
> +						reg = <1>;
> +						
pvi_to_hdmi_tx: endpoint {
> +							
remote-endpoint = <&hdmi_tx_from_pvi>;
> +						};
> +					};
> +				};
> +			};
> +
> +			lcdif3: display-controller@32fc6000 {
> +				compatible = "fsl,imx8mp-lcdif";
> +				reg = <0x32fc6000 0x238>;
> +				interrupts = <8 
IRQ_TYPE_LEVEL_HIGH>;
> +				interrupt-parent = 
<&irqsteer_hdmi>;
> +				clocks = <&hdmi_tx_phy>,
> +					 <&clk 
IMX8MP_CLK_HDMI_APB>,
> +					 <&clk 
IMX8MP_CLK_HDMI_ROOT>;
> +				clock-names = "pix", "axi", 
"disp_axi";
> +				power-domains = <&hdmi_blk_ctrl 
IMX8MP_HDMIBLK_PD_LCDIF>;
> +
> +				port {
> +					lcdif3_to_pvi: endpoint 
{
> +						remote-
endpoint = <&pvi_from_lcdif3>;
> +					};
> +				};
> +			};
> +
> +			hdmi_tx: hdmi@32fd8000 {
> +				compatible = "fsl,imx8mp-hdmi";
> +				reg = <0x32fd8000 0x7eff>;
> +				interrupts = <0 
IRQ_TYPE_LEVEL_HIGH>;
> +				interrupt-parent = 
<&irqsteer_hdmi>;
> +				clocks = <&clk 
IMX8MP_CLK_HDMI_APB>,
> +					 <&clk 
IMX8MP_CLK_HDMI_REF_266M>,
> +					 <&clk IMX8MP_CLK_32K>,
> +					 <&hdmi_tx_phy>;
> +				clock-names = "iahb", "isfr", 
"cec", "pix";
> +				assigned-clocks = <&clk 
IMX8MP_CLK_HDMI_REF_266M>;
> +				assigned-clock-parents = <&clk 
IMX8MP_SYS_PLL1_266M>;
> +				power-domains = <&hdmi_blk_ctrl 
IMX8MP_HDMIBLK_PD_HDMI_TX>;
> +				reg-io-width = <1>;
> +				status = "disabled";
> +
> +				port {
> +					hdmi_tx_from_pvi: 
endpoint {
> +						remote-
endpoint = <&pvi_to_hdmi_tx>;
> +					};
> +				};
> +			};
> +
> +			hdmi_tx_phy: phy@32fdff00 {
> +				compatible = "fsl,imx8mp-hdmi-
phy";
> +				reg = <0x32fdff00 0x100>;
> +				clocks = <&clk 
IMX8MP_CLK_HDMI_APB>,
> +					 <&clk 
IMX8MP_CLK_HDMI_24M>;
> +				clock-names = "apb", "ref";
> +				assigned-clocks = <&clk 
IMX8MP_CLK_HDMI_24M>;
> +				assigned-clock-parents = <&clk 
IMX8MP_CLK_24M>;
> +				power-domains = <&hdmi_blk_ctrl 
IMX8MP_HDMIBLK_PD_HDMI_TX_PHY>;
> +				#clock-cells = <0>;
> +				#phy-cells = <0>;
> +				status = "disabled";
> +			};
>  		};
> 
>  		gpu3d: gpu@38000000 {