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From: Chen-Yu Tsai <wenst@chromium.org>
To: Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>
Cc: Chen-Yu Tsai <wenst@chromium.org>,
	linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 13/13] arm64: dts: mediatek: mt8188-geralt: Add little core CPU power supplies
Date: Fri, 20 Mar 2026 16:43:45 +0800	[thread overview]
Message-ID: <20260320084351.2461060-14-wenst@chromium.org> (raw)
In-Reply-To: <20260320084351.2461060-1-wenst@chromium.org>

The device tree for the MT8188 Geralt is missing power supplies for all
the CPU cores. Power for the little cores is fed from the MT6359 PMIC.
Power for the big cores is fed from an MT6319 PMIC on SPMI. The latter
is currently not working in Linux.

Add the power supplies for the little cores.

Supplies for the big cores will be added once the issue with SPMI is
resolved.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
---
 .../boot/dts/mediatek/mt8188-geralt.dtsi      | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi b/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
index fc84dfedab03..7108bfa53ad0 100644
--- a/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188-geralt.dtsi
@@ -217,6 +217,30 @@ &cam_vcore {
 	domain-supply = <&mt6359_vproc1_buck_reg>;
 };
 
+&cpu0 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu1 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu2 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu3 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu4 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
+&cpu5 {
+	cpu-supply = <&mt6359_vcore_buck_reg>;
+};
+
 /*
  * Geralt is the reference design and doesn't have target TDP.
  * Ciri is (currently) the only device following Geralt, and its
-- 
2.53.0.959.g497ff81fa9-goog



  parent reply	other threads:[~2026-03-20  8:44 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-20  8:43 arm64: dts: mediatek: Regulator cleanup for Chromebooks Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 01/13] arm64: dts: mediatek: mt6359: Drop ldo_vcn33_[12]_wifi regulators Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 02/13] arm64: dts: mediatek: mt6359: Add label for regulator sub-node Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 03/13] arm64: dts: mediatek: mt8192-asurada: Add MT6359 PMIC supplies Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 04/13] arm64: dts: mediatek: mt8192-asurada: Add MT6315 " Chen-Yu Tsai
2026-03-20 15:24   ` Fei Shao
2026-03-20  8:43 ` [PATCH 05/13] arm64: dts: mediatek: mt8192-asurada: Add supplies for ChromeOS EC regulators Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 06/13] arm64: dts: mediatek: mt8192-asurada: Add CPU power supplies Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 07/13] arm64: dts: mediatek: mt8192-asurada: Add SPI NOR flash power supply Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 08/13] arm64: dts: mediatek: mt8192-asurada: Fix WiFi regulator description Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 09/13] arm64: dts: mediatek: mt8195-cherry: Add MT6359 PMIC supplies Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 10/13] arm64: dts: mediatek: mt8195-cherry: Add MT6315 " Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 11/13] arm64: dts: mediatek: mt8195-cherry: Fix VBUS regulator description Chen-Yu Tsai
2026-03-20  8:43 ` [PATCH 12/13] arm64: dts: mediatek: mt8188-geralt: Add MT6359 PMIC supplies Chen-Yu Tsai
2026-03-24  8:08   ` Fei Shao
2026-03-20  8:43 ` Chen-Yu Tsai [this message]
2026-03-24  8:09   ` [PATCH 13/13] arm64: dts: mediatek: mt8188-geralt: Add little core CPU power supplies Fei Shao

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