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From:   Pascal PAILLET-LME <p.paillet@st.com>
To:     "mcoquelin.stm32@gmail.com" <mcoquelin.stm32@gmail.com>,
        Alexandre TORGUE <alexandre.torgue@st.com>,
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CC:     Pascal PAILLET-LME <p.paillet@st.com>,
        "linux-stm32@st-md-mailman.stormreply.com" 
        <linux-stm32@st-md-mailman.stormreply.com>
Subject: [PATCH v2 2/3] ARM: dts: stm32: add stpmic1 support on stm32mp157a
 dk1 board
Thread-Topic: [PATCH v2 2/3] ARM: dts: stm32: add stpmic1 support on
 stm32mp157a dk1 board
Thread-Index: AQHU7rOZC+/rg+MUg028eou+9g6Okw==
Date:   Tue, 9 Apr 2019 09:07:03 +0000
Message-ID: <1554800820-5412-3-git-send-email-p.paillet@st.com>
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This patch adds stpmic1 support on stm32mp157a dk1 board.
The STPMIC1 is a PMIC from STMicroelectronics. The STPMIC1 integrates 10
regulators, 3 power switches, a watchdog and an input for a power on key.
The DMAs are disabled because the PMIC generates a very few traffic and
DMA channels may lack for other usage.

Signed-off-by: Pascal Paillet <p.paillet@st.com>
---
 arch/arm/boot/dts/stm32mp157a-dk1.dts | 158 ++++++++++++++++++++++++++++++=
++--
 1 file changed, 150 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/stm32mp157a-dk1.dts b/arch/arm/boot/dts/stm3=
2mp157a-dk1.dts
index 1b1886d..4bb91ab 100644
--- a/arch/arm/boot/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/boot/dts/stm32mp157a-dk1.dts
@@ -9,6 +9,7 @@
 #include "stm32mp157c.dtsi"
 #include "stm32mp157-pinctrl.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/mfd/st,stpmic1.h>
=20
 / {
 	model =3D "STMicroelectronics STM32MP157A-DK1 Discovery Board";
@@ -36,14 +37,6 @@
 			default-state =3D "off";
 		};
 	};
-
-	v3v3: regulator-3v3 {
-		compatible =3D "regulator-fixed";
-		regulator-name =3D "v3v3";
-		regulator-min-microvolt =3D <3300000>;
-		regulator-max-microvolt =3D <3300000>;
-		regulator-always-on;
-	};
 };
=20
 &ethernet0 {
@@ -65,6 +58,155 @@
 	};
 };
=20
+
+&i2c4 {
+	pinctrl-names =3D "default";
+	pinctrl-0 =3D <&i2c4_pins_a>;
+	i2c-scl-rising-time-ns =3D <185>;
+	i2c-scl-falling-time-ns =3D <20>;
+	status =3D "okay";
+	/* spare dmas for other usage */
+	/delete-property/dmas;
+	/delete-property/dma-names;
+
+	pmic: stpmic@33 {
+		compatible =3D "st,stpmic1";
+		reg =3D <0x33>;
+		interrupts-extended =3D <&gpioa 0 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-controller;
+		#interrupt-cells =3D <2>;
+		status =3D "okay";
+
+		regulators {
+			compatible =3D "st,stpmic1-regulators";
+			ldo1-supply =3D <&v3v3>;
+			ldo3-supply =3D <&vdd_ddr>;
+			ldo6-supply =3D <&v3v3>;
+			pwr_sw1-supply =3D <&bst_out>;
+			pwr_sw2-supply =3D <&bst_out>;
+
+			vddcore: buck1 {
+				regulator-name =3D "vddcore";
+				regulator-min-microvolt =3D <800000>;
+				regulator-max-microvolt =3D <1350000>;
+				regulator-always-on;
+				regulator-initial-mode =3D <0>;
+				regulator-over-current-protection;
+			};
+
+			vdd_ddr: buck2 {
+				regulator-name =3D "vdd_ddr";
+				regulator-min-microvolt =3D <1350000>;
+				regulator-max-microvolt =3D <1350000>;
+				regulator-always-on;
+				regulator-initial-mode =3D <0>;
+				regulator-over-current-protection;
+			};
+
+			vdd: buck3 {
+				regulator-name =3D "vdd";
+				regulator-min-microvolt =3D <3300000>;
+				regulator-max-microvolt =3D <3300000>;
+				regulator-always-on;
+				st,mask-reset;
+				regulator-initial-mode =3D <0>;
+				regulator-over-current-protection;
+			};
+
+			v3v3: buck4 {
+				regulator-name =3D "v3v3";
+				regulator-min-microvolt =3D <3300000>;
+				regulator-max-microvolt =3D <3300000>;
+				regulator-always-on;
+				regulator-over-current-protection;
+				regulator-initial-mode =3D <0>;
+			};
+
+			v1v8_audio: ldo1 {
+				regulator-name =3D "v1v8_audio";
+				regulator-min-microvolt =3D <1800000>;
+				regulator-max-microvolt =3D <1800000>;
+				regulator-always-on;
+				interrupts =3D <IT_CURLIM_LDO1 0>;
+			};
+
+			v3v3_hdmi: ldo2 {
+				regulator-name =3D "v3v3_hdmi";
+				regulator-min-microvolt =3D <3300000>;
+				regulator-max-microvolt =3D <3300000>;
+				regulator-always-on;
+				interrupts =3D <IT_CURLIM_LDO2 0>;
+			};
+
+			vtt_ddr: ldo3 {
+				regulator-name =3D "vtt_ddr";
+				regulator-min-microvolt =3D <500000>;
+				regulator-max-microvolt =3D <750000>;
+				regulator-always-on;
+				regulator-over-current-protection;
+			};
+
+			vdd_usb: ldo4 {
+				regulator-name =3D "vdd_usb";
+				regulator-min-microvolt =3D <3300000>;
+				regulator-max-microvolt =3D <3300000>;
+				interrupts =3D <IT_CURLIM_LDO4 0>;
+			};
+
+			vdda: ldo5 {
+				regulator-name =3D "vdda";
+				regulator-min-microvolt =3D <2900000>;
+				regulator-max-microvolt =3D <2900000>;
+				interrupts =3D <IT_CURLIM_LDO5 0>;
+				regulator-boot-on;
+			};
+
+			v1v2_hdmi: ldo6 {
+				regulator-name =3D "v1v2_hdmi";
+				regulator-min-microvolt =3D <1200000>;
+				regulator-max-microvolt =3D <1200000>;
+				regulator-always-on;
+				interrupts =3D <IT_CURLIM_LDO6 0>;
+			};
+
+			vref_ddr: vref_ddr {
+				regulator-name =3D "vref_ddr";
+				regulator-always-on;
+				regulator-over-current-protection;
+			};
+
+			 bst_out: boost {
+				regulator-name =3D "bst_out";
+				interrupts =3D <IT_OCP_BOOST 0>;
+			 };
+
+			vbus_otg: pwr_sw1 {
+				regulator-name =3D "vbus_otg";
+				interrupts =3D <IT_OCP_OTG 0>;
+			 };
+
+			 vbus_sw: pwr_sw2 {
+				regulator-name =3D "vbus_sw";
+				interrupts =3D <IT_OCP_SWOUT 0>;
+				regulator-active-discharge;
+			 };
+		};
+
+		onkey {
+			compatible =3D "st,stpmic1-onkey";
+			interrupts =3D <IT_PONKEY_F 0>, <IT_PONKEY_R 0>;
+			interrupt-names =3D "onkey-falling", "onkey-rising";
+			power-off-time-sec =3D <10>;
+			status =3D "okay";
+		};
+
+		watchdog {
+			compatible =3D "st,stpmic1-wdt";
+			status =3D "disabled";
+		};
+	};
+};
+
 &ipcc {
 	status =3D "okay";
 };
--=20
1.9.1