linux-kernel - [PATCH] ARM: dts: stm32: add PWR regulators support on stm32mp131

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Date: Tue, 19 Mar 2024 05:05:06 +0100
From: Marek Vasut <marex@...x.de>
To: linux-arm-kernel@...ts.infradead.org
Cc: Marek Vasut <marex@...x.de>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Rob Herring <robh@...nel.org>,
	devicetree@...r.kernel.org,
	kernel@...electronics.com,
	linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH] ARM: dts: stm32: add PWR regulators support on stm32mp131

This patch adds STM32 PWR regulators DT support on stm32mp131.
This requires TFA to clear RCC_SECCFGR, is disabled by default
and can only be enabled on board DT level.

Signed-off-by: Marek Vasut <marex@...x.de>
---
Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>
Cc: Conor Dooley <conor+dt@...nel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Maxime Coquelin <mcoquelin.stm32@...il.com>
Cc: Rob Herring <robh@...nel.org>
Cc: devicetree@...r.kernel.org
Cc: kernel@...electronics.com
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Cc: linux-stm32@...md-mailman.stormreply.com
---
 arch/arm/boot/dts/st/stm32mp131.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/st/stm32mp131.dtsi b/arch/arm/boot/dts/st/stm32mp131.dtsi
index 3900f32da797b..58b8ae759998d 100644
--- a/arch/arm/boot/dts/st/stm32mp131.dtsi
+++ b/arch/arm/boot/dts/st/stm32mp131.dtsi
@@ -1092,6 +1092,30 @@ rcc: rcc@...00000 {
 				 <&scmi_clk CK_SCMI_LSI>;
 		};
 
+		pwr_regulators: pwr@...01000 {
+			compatible = "st,stm32mp1,pwr-reg";
+			reg = <0x50001000 0x10>;
+			status = "disabled";
+
+			reg11: reg11 {
+				regulator-name = "reg11";
+				regulator-min-microvolt = <1100000>;
+				regulator-max-microvolt = <1100000>;
+			};
+
+			reg18: reg18 {
+				regulator-name = "reg18";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+			};
+
+			usb33: usb33 {
+				regulator-name = "usb33";
+				regulator-min-microvolt = <3300000>;
+				regulator-max-microvolt = <3300000>;
+			};
+		};
+
 		exti: interrupt-controller@...0d000 {
 			compatible = "st,stm32mp13-exti", "syscon";
 			interrupt-controller;
-- 
2.43.0