linux-kernel - [PATCHv1] arm64: amlogic: Fix the pwm regulator supply property in node

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Message-Id: <20210629121848.6527-1-linux.amoon@gmail.com>
Date:   Tue, 29 Jun 2021 12:18:47 +0000
From:   Anand Moon <linux.amoon@...il.com>
To:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:     Anand Moon <linux.amoon@...il.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        devicetree@...r.kernel.org
Subject: [PATCHv1] arm64: amlogic: Fix the pwm regulator supply property in node

On enable CONFIG_REGULATOR_DEBUG=y we observer below debug logs.
Changes help link VDDCPU_A and VDDCPU_B pwm regulator to 12V regulator
supply instead of dummy regulator.

[    4.147196] VDDCPU_A: will resolve supply early: pwm
[    4.147216] pwm-regulator regulator-vddcpu-a: Looking up pwm-supply from device tree
[    4.147227] pwm-regulator regulator-vddcpu-a: Looking up pwm-supply property in node /regulator-vddcpu-a failed
[    4.147258] VDDCPU_A: supplied by regulator-dummy
[    4.147288] regulator-dummy: could not add device link regulator.12: -ENOENT
[    4.147353] VDDCPU_A: 721 <--> 1022 mV at 871 mV, enabled
[    4.152014] VDDCPU_B: will resolve supply early: pwm
[    4.152035] pwm-regulator regulator-vddcpu-b: Looking up pwm-supply from device tree
[    4.152047] pwm-regulator regulator-vddcpu-b: Looking up pwm-supply property in node /regulator-vddcpu-b failed
[    4.152079] VDDCPU_B: supplied by regulator-dummy
[    4.152108] regulator-dummy: could not add device link regulator.13: -ENOENT

Fixes: d14734a04a8a ("arm64: dts: meson-g12b-odroid-n2: enable DVFS")

Cc: Neil Armstrong <narmstrong@...libre.com>
Signed-off-by: Anand Moon <linux.amoon@...il.com>
---
 arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
index 344573e157a7..4f33820aba1f 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
@@ -130,7 +130,7 @@ vddcpu_a: regulator-vddcpu-a {
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_ab 0 1250 0>;
 		pwm-dutycycle-range = <100 0>;
@@ -149,7 +149,7 @@ vddcpu_b: regulator-vddcpu-b {
 		regulator-min-microvolt = <721000>;
 		regulator-max-microvolt = <1022000>;
 
-		vin-supply = <&main_12v>;
+		pwm-supply = <&main_12v>;
 
 		pwms = <&pwm_AO_cd 1 1250 0>;
 		pwm-dutycycle-range = <100 0>;
-- 
2.31.1