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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,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, wenst@chromium.org
Subject: [PATCH 04/16] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators
Date: Wed,  8 Feb 2023 11:45:15 +0100	[thread overview]
Message-ID: <20230208104527.118929-5-angelogioacchino.delregno@collabora.com> (raw)
In-Reply-To: <20230208104527.118929-1-angelogioacchino.delregno@collabora.com>

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-pumpkin.dts | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
index a1d01639df30..c228f04d086b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
@@ -71,7 +71,6 @@ &auxadc {
 
 &gpu {
 	mali-supply = <&mt6358_vgpu_reg>;
-	sram-supply = <&mt6358_vsram_gpu_reg>;
 };
 
 &i2c0 {
@@ -176,6 +175,16 @@ &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{
-- 
2.39.1


WARNING: multiple messages have this Message-ID (diff)
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,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, wenst@chromium.org
Subject: [PATCH 04/16] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators
Date: Wed,  8 Feb 2023 11:45:15 +0100	[thread overview]
Message-ID: <20230208104527.118929-5-angelogioacchino.delregno@collabora.com> (raw)
In-Reply-To: <20230208104527.118929-1-angelogioacchino.delregno@collabora.com>

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-pumpkin.dts | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
index a1d01639df30..c228f04d086b 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8183-pumpkin.dts
@@ -71,7 +71,6 @@ &auxadc {
 
 &gpu {
 	mali-supply = <&mt6358_vgpu_reg>;
-	sram-supply = <&mt6358_vsram_gpu_reg>;
 };
 
 &i2c0 {
@@ -176,6 +175,16 @@ &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{
-- 
2.39.1


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  parent reply	other threads:[~2023-02-08 10:46 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-08 10:45 [PATCH 00/16] Enable GPU with DVFS support on MediaTek SoCs AngeloGioacchino Del Regno
2023-02-08 10:45 ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 01/16] arm64: dts: mediatek: mt8183-kukui: Couple VGPU and VSRAM_GPU regulators AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 02/16] arm64: dts: mediatek: mt8183-kukui: Override vgpu/vsram_gpu constraints AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 03/16] arm64: dts: mediatek: mt8183: Remove second opp-microvolt entries from gpu table AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` AngeloGioacchino Del Regno [this message]
2023-02-08 10:45   ` [PATCH 04/16] arm64: dts: mt8183-pumpkin: Couple VGPU and VSRAM_GPU regulators AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 05/16] arm64: dts: mediatek: mt8183-evb: " AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 06/16] arm64: dts: mediatek: mt8183: Use mediatek,mt8183b-mali as GPU compatible AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 07/16] arm64: dts: mediatek: mt8192: Add GPU nodes AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 08/16] arm64: dts: mediatek: mt8192: Add mfg_ref_sel clock to MFG0 domain AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 09/16] arm64: dts: mediatek: mt8192-asurada: Add MFG0 domain supply AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 10/16] arm64: dts: mediatek: mt8192-asurada: Assign sram supply to MFG1 pd AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 11/16] arm64: dts: mediatek: mt8192-asurada: Couple VGPU and VSRAM_OTHER regulators AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 12/16] arm64: dts: mediatek: mt8192-asurada: Enable GPU AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 13/16] arm64: dts: mediatek: mt8195: Add mfg_core_tmp clock to MFG1 domain AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 14/16] arm64: dts: mt8195: Add panfrost node for Mali-G57 Valhall Natt GPU AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 15/16] arm64: dts: mediatek: mt8195-cherry: Enable Mali-G57 GPU AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-08 10:45 ` [PATCH 16/16] arm64: dts: mediatek: mt8186: Add GPU node AngeloGioacchino Del Regno
2023-02-08 10:45   ` AngeloGioacchino Del Regno
2023-02-09  9:11 ` [PATCH 00/16] Enable GPU with DVFS support on MediaTek SoCs Chen-Yu Tsai
2023-02-09  9:11   ` Chen-Yu Tsai

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