linux-kernel - [PATCHv4 1/3] arm64: dts: meson: odroid-c2: p5v0 is the main 5V power input

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Message-Id: <20190824184912.795-2-linux.amoon@gmail.com>
Date:   Sat, 24 Aug 2019 18:49:10 +0000
From:   Anand Moon <linux.amoon@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Kevin Hilman <khilman@...libre.com>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCHv4 1/3] arm64: dts: meson: odroid-c2: p5v0 is the main 5V power input

As per the schematic Monolithic Power Systems MP2161GJ-C499
supply a fixed output voltage of 5.0V. This supplies linked
to VDD_EE, HDMI_P5V0, USB_POWER, VCCK, VDDIO_AO1V8, DDR_VDDC
according to the schematics.

Cc: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc: Jerome Brunet <jbrunet@...libre.com>
Cc: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
Changes from my previous attempt below
[1] https://lore.kernel.org/patchwork/patch/1031243/

New patch and fix the commit message.
Added regulator-always-on since this is core input regulator.
Split the linking on regulator and usb node in separate patch.

Later more patchs will follow linking more core regulator as per
shematics.
---
 arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 9972b1515da6..41d5fa370eb3 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -50,6 +50,15 @@
 		};
 	};
 
+	p5v0: regulator-p5v0 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "P5V0";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-always-on;
+	};
+
 	tflash_vdd: regulator-tflash_vdd {
 		/*
 		 * signal name from schematics: TFLASH_VDD_EN
-- 
2.23.0