linux-kernel - Re: [PATCH v1 2/6] dts: arm64: mt8195: add MMSYS and MUTEX configuration for VPPSYS

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Date:   Tue, 4 Oct 2022 11:46:53 +0000
From:   Allen-KH Cheng (程冠勳) 
        <Allen-KH.Cheng@...iatek.com>
To:     "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Roy-CW Yeh (葉中瑋) 
        <Roy-CW.Yeh@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH v1 2/6] dts: arm64: mt8195: add MMSYS and MUTEX
 configuration for VPPSYS

Hi Moudy,

On Tue, 2022-10-04 at 17:33 +0800, Moudy Ho wrote:
> From: "Roy-CW.Yeh" <roy-cw.yeh@...iatek.com>
> 
> Compatible names of VPPSYS0 and VPPSYS1 should be renamed to
> "mediatek,mt8195-mmsys" to match the description of the binding file.
> Also, add two nodes for MT8195 VPPSYS0/1 MUTEX.
> 
> Signed-off-by: Roy-CW.Yeh <roy-cw.yeh@...iatek.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8195.dtsi | 22 ++++++++++++++++++++--
>  1 file changed, 20 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> index 905d1a90b406..7f54fa7d0185 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> @@ -1477,11 +1477,20 @@
>  		};
>  
>  		vppsys0: clock-controller@...00000 {
> -			compatible = "mediatek,mt8195-vppsys0";
> +			compatible = "mediatek,mt8195-mmsys";
>  			reg = <0 0x14000000 0 0x1000>;
> +			mediatek,gce-client-reg = <&gce1
> SUBSYS_1400XXXX 0 0x1000>;
>  			#clock-cells = <1>;
>  		};
>  

I run "ARCH=arm64 make dtbs check" and some of the tests failed.

The node name should be 'syscon' from mediatek/mediatek,mmsys.yaml.


> +		vpp0-mutex@...0f000 {
> +			compatible = "mediatek,mt8195-vpp-mutex";
> +			reg = <0 0x1400f000 0 0x1000>;
> +			mediatek,gce-client-reg = <&gce1
> SUBSYS_1400XXXX 0xf000 0x1000>;
> +			clocks = <&vppsys0 CLK_VPP0_MUTEX>;
> +			power-domains = <&spm
> MT8195_POWER_DOMAIN_VPPSYS0>;
> +		};
> +

'interrupts' is a required property from mediatek/mediatek,mutex.yaml


>  		smi_sub_common_vpp0_vpp1_2x1: smi@...10000 {
>  			compatible = "mediatek,mt8195-smi-sub-common";
>  			reg = <0 0x14010000 0 0x1000>;
> @@ -1582,11 +1591,20 @@
>  		};
>  
>  		vppsys1: clock-controller@...00000 {
> -			compatible = "mediatek,mt8195-vppsys1";
> +			compatible = "mediatek,mt8195-mmsys";
>  			reg = <0 0x14f00000 0 0x1000>;
> +			mediatek,gce-client-reg = <&gce1
> SUBSYS_14f0XXXX 0 0x1000>;

Node name: syscon.

>  			#clock-cells = <1>;
>  		};
>  
> +		vpp1-mutex@...01000 {
> +			compatible = "mediatek,mt8195-vpp-mutex";
> +			reg = <0 0x14f01000 0 0x1000>;
> +			mediatek,gce-client-reg = <&gce1
> SUBSYS_14f0XXXX 0x1000 0x1000>;
> +			clocks = <&vppsys1 CLK_VPP1_DISP_MUTEX>;
> +			power-domains = <&spm
> MT8195_POWER_DOMAIN_VPPSYS1>;
> +		};
> +

'interrupts' is a required property

Thanks,
Allen

>  		larb5: larb@...02000 {
>  			compatible = "mediatek,mt8195-smi-larb";
>  			reg = <0 0x14f02000 0 0x1000>;