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From: AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
To: matthias.bgg@gmail.com
Cc: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org,
angelogioacchino.delregno@collabora.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
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linux-mediatek@lists.infradead.org, wenst@chromium.org
Subject: [PATCH 05/16] arm64: dts: mediatek: mt8183-evb: Couple VGPU and
VSRAM_GPU regulators
Date: Wed, 8 Feb 2023 11:45:16 +0100
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| Series |
Enable GPU with DVFS support on MediaTek SoCs
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Commit Message
AngeloGioacchino Del Regno
Feb. 8, 2023, 10:45 a.m. UTC
Add coupling for these regulators, as they have a strict voltage output
relation to satisfy in order to ensure GPU stable operation.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts index 52dc4a50e34d..fd327437e932 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183-evb.dts +++ b/arch/arm64/boot/dts/mediatek/mt8183-evb.dts @@ -52,7 +52,6 @@ &auxadc { &gpu { mali-supply = <&mt6358_vgpu_reg>; - sram-supply = <&mt6358_vsram_gpu_reg>; }; &i2c0 { @@ -138,6 +137,16 @@ &mmc1 { non-removable; }; +&mt6358_vgpu_reg { + regulator-coupled-with = <&mt6358_vsram_gpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + +&mt6358_vsram_gpu_reg { + regulator-coupled-with = <&mt6358_vgpu_reg>; + regulator-coupled-max-spread = <100000>; +}; + &pio { i2c_pins_0: i2c0{ pins_i2c{