linux-kernel - Re: [PATCH v2 20/23] arm64: dts: mt8192: Add display nodes

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Date:   Tue, 22 Feb 2022 18:24:29 +0800
From:   Chen-Yu Tsai <wenst@...omium.org>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Cc:     Matthias Brugger <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        "--to=Krzysztof Kozlowski" <krzysztof.kozlowski@...onical.com>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Ryder Lee <ryder.lee@...nel.org>
Subject: Re: [PATCH v2 20/23] arm64: dts: mt8192: Add display nodes

Hi,

On Fri, Feb 18, 2022 at 5:16 PM Allen-KH Cheng
<allen-kh.cheng@...iatek.com> wrote:
>
> Add display nodes for mt8192 SoC.
>
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
> ---
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 115 +++++++++++++++++++++++
>  1 file changed, 115 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index e3314cdc7c1a..026f2d8141b0 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -32,6 +32,11 @@
>                 i2c7 = &i2c7;
>                 i2c8 = &i2c8;
>                 i2c9 = &i2c9;
> +               ovl0 = &ovl0;
> +               ovl-2l0 = &ovl_2l0;
> +               ovl-2l2 = &ovl_2l2;
> +               rdma0 = &rdma0;
> +               rdma4 = &rdma4;
>         };
>
>         clk26m: oscillator0 {
> @@ -1224,6 +1229,13 @@
>                         #clock-cells = <1>;
>                 };
>
> +               mutex: mutex@...01000 {
> +                       compatible = "mediatek,mt8192-disp-mutex";
> +                       reg = <0 0x14001000 0 0x1000>;
> +                       interrupts = <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       clocks = <&mmsys CLK_MM_DISP_MUTEX0>;
> +               };
> +
>                 smi_common: smi@...02000 {
>                         compatible = "mediatek,mt8192-smi-common";
>                         reg = <0 0x14002000 0 0x1000>;
> @@ -1255,6 +1267,109 @@
>                         power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
>                 };
>
> +               ovl0: ovl@...05000 {
> +                       compatible = "mediatek,mt8192-disp-ovl";
> +                       reg = <0 0x14005000 0 0x1000>;
> +                       interrupts = <GIC_SPI 254 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       clocks = <&mmsys CLK_MM_DISP_OVL0>;
> +                       iommus = <&iommu0 M4U_PORT_L0_OVL_RDMA0>,
> +                                <&iommu0 M4U_PORT_L0_OVL_RDMA0_HDR>;
> +                       power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
> +               };
> +
> +               ovl_2l0: ovl@...06000 {
> +                       compatible = "mediatek,mt8192-disp-ovl-2l";
> +                       reg = <0 0x14006000 0 0x1000>;
> +                       interrupts = <GIC_SPI 255 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
> +                       clocks = <&mmsys CLK_MM_DISP_OVL0_2L>;
> +                       iommus = <&iommu0 M4U_PORT_L1_OVL_2L_RDMA0>,
> +                                <&iommu0 M4U_PORT_L1_OVL_2L_RDMA0_HDR>;
> +               };
> +
> +               rdma0: rdma@...07000 {
> +                       compatible = "mediatek,mt8192-disp-rdma";
> +                       reg = <0 0x14007000 0 0x1000>;
> +                       interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       clocks = <&mmsys CLK_MM_DISP_RDMA0>;
> +                       iommus = <&iommu0 M4U_PORT_L0_DISP_RDMA0>;
> +                       mediatek,larb = <&larb0>;
> +                       mediatek,rdma-fifo-size = <5120>;
> +                       power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
> +               };
> +
> +               color0: color@...09000 {
> +                       compatible = "mediatek,mt8192-disp-color",
> +                                    "mediatek,mt8173-disp-color";
> +                       reg = <0 0x14009000 0 0x1000>;
> +                       interrupts = <GIC_SPI 258 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
> +                       clocks = <&mmsys CLK_MM_DISP_COLOR0>;
> +               };
> +
> +               ccorr0: ccorr@...0a000 {
> +                       compatible = "mediatek,mt8192-disp-ccorr";
> +                       reg = <0 0x1400a000 0 0x1000>;
> +                       interrupts = <GIC_SPI 259 IRQ_TYPE_LEVEL_HIGH 0>;
> +                       power-domains = <&spm MT8192_POWER_DOMAIN_DISP>;
> +                       clocks = <&mmsys CLK_MM_DISP_CCORR0>;
> +               };
> +
> +               aal0: aal@...0b000 {
> +                       compatible = "mediatek,mt8192-disp-aal";

git.kernel.org/chunkuang.hu/c/4ed545e7d10049b5492afc184e61a67e478a2cfd

suggests that there should be a fallback compatible? Otherwise this
doesn't probe.

ChenYu