linux-kernel - [PATCH 1/2] dt-bindings: regulator: Add stm32mp1 pwr regulators

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Message-ID: <1554737044-9460-2-git-send-email-p.paillet@st.com>
Date:   Mon, 8 Apr 2019 15:24:07 +0000
From:   Pascal PAILLET-LME <p.paillet@...com>
To:     "lgirdwood@...il.com" <lgirdwood@...il.com>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "mcoquelin.stm32@...il.com" <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>
CC:     Pascal PAILLET-LME <p.paillet@...com>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH 1/2] dt-bindings: regulator: Add stm32mp1 pwr regulators

Document devicetree bindings for stm32mp1 pwr regulators.

Signed-off-by: Pascal Paillet <p.paillet@...com>
---
 .../bindings/regulator/st,stm32mp1-pwr-reg.txt     | 43 ++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt

diff --git a/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt b/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt
new file mode 100644
index 0000000..e372dd3
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/st,stm32mp1-pwr-reg.txt
@@ -0,0 +1,43 @@
+STM32MP1 PWR Regulators
+-----------------------
+
+Available Regulators in STM32MP1 PWR block are:
+  - reg11 for regulator 1V1
+  - reg18 for regulator 1V8
+  - usb33 for the swtich USB3V3
+
+Required properties:
+- compatible: Must be "st,stm32mp1,pwr-reg"
+- list of child nodes that specify the regulator reg11, reg18 or usb33
+  initialization data for defined regulators. The definition for each of
+  these nodes is defined using the standard binding for regulators found at
+  Documentation/devicetree/bindings/regulator/regulator.txt.
+- vdd-supply: phandle to the parent supply/regulator node for vdd input
+- vdd_3v3_usbfs-supply: phandle to the parent supply/regulator node for usb33
+
+Example:
+
+pwr_regulators: pwr@...01000 {
+	compatible = "st,stm32mp1,pwr-reg";
+	reg = <0x50001000 0x10>;
+	vdd-supply = <&vdd>;
+	vdd_3v3_usbfs-supply = <&vdd_usb>;
+
+	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>;
+	};
+};
-- 
1.9.1