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Date: Fri, 24 Feb 2023 17:55:31 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com>
Cc: matthias.bgg@...il.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-mediatek@...ts.infradead.org,
Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>,
Nícolas F . R . A . Prado
<nfraprado@...labora.com>
Subject: Re: [PATCH v2 07/16] arm64: dts: mediatek: mt8192: Add GPU nodes
On Thu, Feb 23, 2023 at 9:44 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> From: Alyssa Rosenzweig <alyssa.rosenzweig@...labora.com>
>
> 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@...labora.com>
> [nfraprado: removed sram supply, tweaked opp node name, adjusted commit message]
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
> [wenst@: disable GPU by default; adjusted prefix; split out board change]
> Signed-off-by: Chen-Yu Tsai <wenst@...omium.org>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> ---
> 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@...70000 {
> status = "disabled";
> };
>
> + gpu: gpu@...00000 {
> + 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@...omium.org>
> + 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@...bf000 {
> compatible = "mediatek,mt8192-mfgcfg";
> reg = <0 0x13fbf000 0 0x1000>;
> --
> 2.39.2
>
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