Re: [PATCH V8 05/12] arm64: dts: imx8mp: add HDMI power-domains

[Alexander Stein]

Hi Adam,

thanks for working on this.

Am Samstag, 3. Februar 2024, 17:52:45 CET schrieb Adam Ford:
> From: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> 
> This adds the PGC and HDMI blk-ctrl nodes providing power control for
> HDMI subsystem peripherals.
> 
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> Signed-off-by: Lucas Stach <l.stach@xxxxxxxxxxxxxx>
> ---
> V2:  Add missing power-domains hdcp and hrv
> ---
>  arch/arm64/boot/dts/freescale/imx8mp.dtsi | 38 +++++++++++++++++++++++
>  1 file changed, 38 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> b/arch/arm64/boot/dts/freescale/imx8mp.dtsi index
> 76c73daf546b..5c54073de615 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
> @@ -836,6 +836,23 @@ pgc_mediamix: power-domain@10 {
>  							 <&clk 
IMX8MP_CLK_MEDIA_APB_ROOT>;
>  					};
> 
> +					pgc_hdmimix: power-
domains@14 {

As per Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml the node 
should be called power-domain@.

> +						#power-domain-
cells = <0>;
> +						reg = 
<IMX8MP_POWER_DOMAIN_HDMIMIX>;
> +						clocks = <&clk 
IMX8MP_CLK_HDMI_ROOT>,
> +							 <&clk 
IMX8MP_CLK_HDMI_APB>;
> +						assigned-clocks = 
<&clk IMX8MP_CLK_HDMI_AXI>,
> +								
  <&clk IMX8MP_CLK_HDMI_APB>;
> +						assigned-clock-
parents = <&clk IMX8MP_SYS_PLL2_500M>,
> +								
	 <&clk IMX8MP_SYS_PLL1_133M>;
> +						assigned-clock-
rates = <500000000>, <133000000>;
> +					};
> +
> +					pgc_hdmi_phy: power-
domains@15 {

As per Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml the node 
should be called power-domain@.

> +						#power-domain-
cells = <0>;
> +						reg = 
<IMX8MP_POWER_DOMAIN_HDMI_PHY>;
> +					};
> +
>  					pgc_mipi_phy2: power-
domain@16 {
>  						#power-domain-
cells = <0>;
>  						reg = 
<IMX8MP_POWER_DOMAIN_MIPI_PHY2>;
> @@ -1361,6 +1378,27 @@ eqos: ethernet@30bf0000 {
>  				intf_mode = <&gpr 0x4>;
>  				status = "disabled";
>  			};
> +
> +			hdmi_blk_ctrl: blk-ctrl@32fc0000 {
> +				compatible = "fsl,imx8mp-hdmi-blk-
ctrl", "syscon";
> +				reg = <0x32fc0000 0x23c>;
> +				clocks = <&clk IMX8MP_CLK_HDMI_APB>,
> +					 <&clk 
IMX8MP_CLK_HDMI_ROOT>,
> +					 <&clk 
IMX8MP_CLK_HDMI_REF_266M>,
> +					 <&clk IMX8MP_CLK_HDMI_24M>,
> +					 <&clk 
IMX8MP_CLK_HDMI_FDCC_TST>;
> +				clock-names = "apb", "axi", 
"ref_266m", "ref_24m", "fdcc";
> +				power-domains = <&pgc_hdmimix>, 
<&pgc_hdmimix>,
> +						<&pgc_hdmimix>, 
<&pgc_hdmimix>,
> +						<&pgc_hdmimix>, 
<&pgc_hdmimix>,
> +						<&pgc_hdmimix>, 
<&pgc_hdmi_phy>,
> +						<&pgc_hdmimix>, 
<&pgc_hdmimix>;
> +				power-domain-names = "bus", 
"irqsteer", "lcdif",
> +						     "pai", "pvi", 
"trng",
> +						     "hdmi-tx", 
"hdmi-tx-phy",
> +						     "hdcp", 
"hrv";
> +				#power-domain-cells = <1>;
> +			};
>  		};
> 

According to RM this block is part of AIPS4, so it should be below 
hsio_blk_ctrl.

Best regards,
Alexander

>  		aips5: bus@30c00000 {


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