linux-kernel - [PATCH 3/4] ARM: dts: stm32: add SCMI PMIC regulators on stm32mp135f-dk board

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Date:   Wed, 12 Jul 2023 16:24:31 +0200
From:   <p.paillet@...s.st.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Russell King <linux@...linux.org.uk>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Claudiu Beznea <claudiu.beznea@...rochip.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
        Alexander Stein <alexander.stein@...tq-group.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <p.paillet@...s.st.com>,
        Etienne Carriere <etienne.carriere@...s.st.com>
Subject: [PATCH 3/4] ARM: dts: stm32: add SCMI PMIC regulators on stm32mp135f-dk board

From: Etienne Carriere <etienne.carriere@...s.st.com>

Since OP-TEE release tag 3.22.0, OP-TEE SCMI service for STM32MP13x
SoC family exposes PMIC voltage regulators. This change defines
them in the platform DTS file and removes the fixed regulators that
were previously defined to abstract them before OP-TEE firmware was
ready.

Signed-off-by: Etienne Carriere <etienne.carriere@...s.st.com>
Signed-off-by: Pascal Paillet <p.paillet@...s.st.com>
---
 arch/arm/boot/dts/st/stm32mp135f-dk.dts | 68 +++++++++++--------------
 1 file changed, 30 insertions(+), 38 deletions(-)

diff --git a/arch/arm/boot/dts/st/stm32mp135f-dk.dts b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
index f0900ca672b5..eea740d097c7 100644
--- a/arch/arm/boot/dts/st/stm32mp135f-dk.dts
+++ b/arch/arm/boot/dts/st/stm32mp135f-dk.dts
@@ -9,6 +9,7 @@
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/regulator/st,stm32mp13-regulator.h>
 #include "stm32mp135.dtsi"
 #include "stm32mp13xf.dtsi"
 #include "stm32mp13-pinctrl.dtsi"
@@ -65,45 +66,13 @@ led-blue {
 			default-state = "off";
 		};
 	};
-
-	v3v3_sw: v3v3-sw {
-		compatible = "regulator-fixed";
-		regulator-name = "v3v3_sw";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		regulator-always-on;
-	};
-
-	vdd_adc: vdd-adc {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd_adc";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		regulator-always-on;
-	};
-
-	vdd_sd: vdd-sd {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd_sd";
-		regulator-min-microvolt = <2900000>;
-		regulator-max-microvolt = <2900000>;
-		regulator-always-on;
-	};
-
-	vdd_usb: vdd-usb {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd_usb";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		regulator-always-on;
-	};
 };
 
 &adc_1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&adc1_usb_cc_pins_a>;
-	vdda-supply = <&vdd_adc>;
-	vref-supply = <&vdd_adc>;
+	vdda-supply = <&scmi_vdd_adc>;
+	vref-supply = <&scmi_vdd_adc>;
 	status = "okay";
 	adc1: adc@0 {
 		status = "okay";
@@ -195,6 +164,29 @@ &rtc {
 	status = "okay";
 };
 
+&scmi_regu {
+	scmi_vdd_adc: regulator@10 {
+		reg = <VOLTD_SCMI_STPMIC1_LDO1>;
+		regulator-name = "vdd_adc";
+	};
+	scmi_vdd_usb: regulator@13 {
+		reg = <VOLTD_SCMI_STPMIC1_LDO4>;
+		regulator-name = "vdd_usb";
+	};
+	scmi_vdd_sd: regulator@14 {
+		reg = <VOLTD_SCMI_STPMIC1_LDO5>;
+		regulator-name = "vdd_sd";
+	};
+	scmi_v1v8_periph: regulator@15 {
+		reg = <VOLTD_SCMI_STPMIC1_LDO6>;
+		regulator-name = "v1v8_periph";
+	};
+	scmi_v3v3_sw: regulator@19 {
+		reg = <VOLTD_SCMI_STPMIC1_PWR_SW2>;
+		regulator-name = "v3v3_sw";
+	};
+};
+
 &sdmmc1 {
 	pinctrl-names = "default", "opendrain", "sleep";
 	pinctrl-0 = <&sdmmc1_b4_pins_a &sdmmc1_clk_pins_a>;
@@ -204,7 +196,7 @@ &sdmmc1 {
 	disable-wp;
 	st,neg-edge;
 	bus-width = <4>;
-	vmmc-supply = <&vdd_sd>;
+	vmmc-supply = <&scmi_vdd_sd>;
 	status = "okay";
 };
 
@@ -321,7 +313,7 @@ &usbh_ehci {
 	hub@1 {
 		compatible = "usb424,2514";
 		reg = <1>;
-		vdd-supply = <&v3v3_sw>;
+		vdd-supply = <&scmi_v3v3_sw>;
 	};
 };
 
@@ -342,7 +334,7 @@ &usbphyc {
 };
 
 &usbphyc_port0 {
-	phy-supply = <&vdd_usb>;
+	phy-supply = <&scmi_vdd_usb>;
 	st,current-boost-microamp = <1000>;
 	st,decrease-hs-slew-rate;
 	st,tune-hs-dc-level = <2>;
@@ -356,7 +348,7 @@ &usbphyc_port0 {
 };
 
 &usbphyc_port1 {
-	phy-supply = <&vdd_usb>;
+	phy-supply = <&scmi_vdd_usb>;
 	st,current-boost-microamp = <1000>;
 	st,decrease-hs-slew-rate;
 	st,tune-hs-dc-level = <2>;
-- 
2.25.1