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([103.51.72.37]) by smtp.gmail.com with ESMTPSA id gg5sm8314730pjb.42.2021.06.29.05.19.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Jun 2021 05:19:31 -0700 (PDT) From: Anand Moon To: linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Anand Moon , Neil Armstrong , Rob Herring , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , devicetree@vger.kernel.org Subject: [PATCHv1] arm64: amlogic: Fix the pwm regulator supply property in node Date: Tue, 29 Jun 2021 12:18:47 +0000 Message-Id: <20210629121848.6527-1-linux.amoon@gmail.com> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210629_051933_308491_22FDF326 X-CRM114-Status: GOOD ( 11.81 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Signed-off-by: Anand Moon --- 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>;