Re: [PATCH v2 07/16] arm64: dts: mediatek: mt8192: Add GPU nodes

[Chen-Yu Tsai]

On Thu, Feb 23, 2023 at 9:44 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@xxxxxxxxxxxxx> wrote:
>
> From: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx>
>
> The MediaTek MT8192 includes a Mali-G57 GPU supported in Panfrost. Add
> the GPU node to the device tree to enable 3D acceleration.
>
> The GPU node is disabled by default. It should be enabled by board with
> its power supplies correctly assigned.
>
> Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@xxxxxxxxxxxxx>
> [nfraprado: removed sram supply, tweaked opp node name, adjusted commit message]
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> [wenst@: disable GPU by default; adjusted prefix; split out board change]
> Signed-off-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>
> ---
>  arch/arm64/boot/dts/mediatek/mt8192.dtsi | 109 +++++++++++++++++++++++
>  1 file changed, 109 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> index 87b91c8feaf9..2a3606f68ae4 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
> @@ -312,6 +312,91 @@ timer: timer {
>                 clock-frequency = <13000000>;
>         };
>
> +       gpu_opp_table: opp-table-0 {
> +               compatible = "operating-points-v2";
> +               opp-shared;
> +
> +               opp-358000000 {
> +                       opp-hz = /bits/ 64 <358000000>;
> +                       opp-microvolt = <606250>;
> +               };
> +
> +               opp-399000000 {
> +                       opp-hz = /bits/ 64 <399000000>;
> +                       opp-microvolt = <618750>;
> +               };
> +
> +               opp-440000000 {
> +                       opp-hz = /bits/ 64 <440000000>;
> +                       opp-microvolt = <631250>;
> +               };
> +
> +               opp-482000000 {
> +                       opp-hz = /bits/ 64 <482000000>;
> +                       opp-microvolt = <643750>;
> +               };
> +
> +               opp-523000000 {
> +                       opp-hz = /bits/ 64 <523000000>;
> +                       opp-microvolt = <656250>;
> +               };
> +
> +               opp-564000000 {
> +                       opp-hz = /bits/ 64 <564000000>;
> +                       opp-microvolt = <668750>;
> +               };
> +
> +               opp-605000000 {
> +                       opp-hz = /bits/ 64 <605000000>;
> +                       opp-microvolt = <681250>;
> +               };
> +
> +               opp-647000000 {
> +                       opp-hz = /bits/ 64 <647000000>;
> +                       opp-microvolt = <693750>;
> +               };
> +
> +               opp-688000000 {
> +                       opp-hz = /bits/ 64 <688000000>;
> +                       opp-microvolt = <706250>;
> +               };
> +
> +               opp-724000000 {
> +                       opp-hz = /bits/ 64 <724000000>;
> +                       opp-microvolt = <725000>;
> +               };
> +
> +               opp-748000000 {
> +                       opp-hz = /bits/ 64 <748000000>;
> +                       opp-microvolt = <737500>;
> +               };
> +
> +               opp-772000000 {
> +                       opp-hz = /bits/ 64 <772000000>;
> +                       opp-microvolt = <750000>;
> +               };
> +
> +               opp-795000000 {
> +                       opp-hz = /bits/ 64 <795000000>;
> +                       opp-microvolt = <762500>;
> +               };
> +
> +               opp-819000000 {
> +                       opp-hz = /bits/ 64 <819000000>;
> +                       opp-microvolt = <775000>;
> +               };
> +
> +               opp-843000000 {
> +                       opp-hz = /bits/ 64 <843000000>;
> +                       opp-microvolt = <787500>;
> +               };
> +
> +               opp-866000000 {
> +                       opp-hz = /bits/ 64 <866000000>;
> +                       opp-microvolt = <800000>;
> +               };
> +       };
> +
>         soc {
>                 #address-cells = <2>;
>                 #size-cells = <2>;
> @@ -1266,6 +1351,30 @@ mmc1: mmc@11f70000 {
>                         status = "disabled";
>                 };
>
> +               gpu: gpu@13000000 {
> +                       compatible = "mediatek,mt8192-mali", "arm,mali-valhall-jm";
> +                       reg = <0 0x13000000 0 0x4000>;
> +                       interrupts =
> +                               <GIC_SPI 365 IRQ_TYPE_LEVEL_HIGH 0>,
> +                               <GIC_SPI 364 IRQ_TYPE_LEVEL_HIGH 0>,
> +                               <GIC_SPI 363 IRQ_TYPE_LEVEL_HIGH 0>;

Nit: Move the first entry to the same line as the property, and align
the following lines' angle brackets?

Same for the power-domains.

Otherwise,

Reviewed-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>

> +                       interrupt-names = "job", "mmu", "gpu";
> +
> +                       clocks = <&apmixedsys CLK_APMIXED_MFGPLL>;
> +
> +                       power-domains =
> +                               <&spm MT8192_POWER_DOMAIN_MFG2>,
> +                               <&spm MT8192_POWER_DOMAIN_MFG3>,
> +                               <&spm MT8192_POWER_DOMAIN_MFG4>,
> +                               <&spm MT8192_POWER_DOMAIN_MFG5>,
> +                               <&spm MT8192_POWER_DOMAIN_MFG6>;
> +                       power-domain-names = "core0", "core1", "core2", "core3", "core4";
> +
> +                       operating-points-v2 = <&gpu_opp_table>;
> +
> +                       status = "disabled";
> +               };
> +
>                 mfgcfg: clock-controller@13fbf000 {
>                         compatible = "mediatek,mt8192-mfgcfg";
>                         reg = <0 0x13fbf000 0 0x1000>;
> --
> 2.39.2
>