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([2a01:e0a:982:cbb0:64c8:555c:905:adc6]) by smtp.gmail.com with ESMTPSA id m6-20020a1c2606000000b003c6edc05159sm12139091wmm.1.2022.11.07.09.27.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 07 Nov 2022 09:27:06 -0800 (PST) Message-ID: Date: Mon, 7 Nov 2022 18:27:05 +0100 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.3.3 From: Neil Armstrong Reply-To: neil.armstrong@linaro.org Subject: Re: [PATCH] arm64: dts: meson-s4-s805x2: add 12V/3.3V/1.8V/vddcpu nodes for Regulator Content-Language: en-US To: Chao Zhang , linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Rob Herring , Amjad Ouled-Ameur References: <20221107021116.2732032-1-chao.zhang@amlogic.com> Organization: Linaro Developer Services In-Reply-To: <20221107021116.2732032-1-chao.zhang@amlogic.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi, On 07/11/2022 03:11, Chao Zhang wrote: > From: "chao.zhang" > > Add 12V/3.3V/1.8V/vddcpu nodes for Regulator on Amlogic S4 SoCs. > > Signed-off-by: Neil Armstrong > Signed-off-by: Amjad Ouled-Ameur > Reviewed-by: Martin Blumenstingl > Link: https://lore.kernel.org/r/20221004-up-aml-fix-spi-v4-3-0342d8e10c49@baylibre.com > Signed-off-by: Neil Armstrong I think you did a bad copy paste because those lines comes from another already applied commit. Please add your own Signed-off-by. > --- > .../dts/amlogic/meson-s4-s805x2-aq222.dts | 85 +++++++++++++++++++ > arch/arm64/boot/dts/amlogic/meson-s4.dtsi | 4 + > 2 files changed, 89 insertions(+) > > diff --git a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > index 8ffbcb2b1ac5..80c959766b79 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > +++ b/arch/arm64/boot/dts/amlogic/meson-s4-s805x2-aq222.dts > @@ -22,6 +22,91 @@ memory@0 { > device_type = "memory"; > reg = <0x0 0x0 0x0 0x40000000>; > }; > + main_12v: regulator-main_12v { > + compatible = "regulator-fixed"; > + regulator-name = "12V"; > + regulator-min-microvolt = <12000000>; > + regulator-max-microvolt = <12000000>; > + regulator-always-on; > + }; > + > + vddao_3v3: regulator-vddao_3v3 { > + compatible = "regulator-fixed"; > + regulator-name = "VDDAO_3V3"; > + regulator-min-microvolt = <3300000>; > + regulator-max-microvolt = <3300000>; > + vin-supply = <&main_12v>; > + regulator-always-on; > + }; > + > + vddio_ao1v8: regulator-vddio_ao1v8 { > + compatible = "regulator-fixed"; > + regulator-name = "VDDIO_AO1V8"; > + regulator-min-microvolt = <1800000>; > + regulator-max-microvolt = <1800000>; > + vin-supply = <&vddao_3v3>; > + regulator-always-on; > + }; > + > + vddcpu: regulator-vddcpu { > + /* > + * SY8120B1ABC DC/DC Regulator. > + */ > + compatible = "pwm-regulator"; > + > + regulator-name = "VDDCPU"; > + regulator-min-microvolt = <689000>; > + regulator-max-microvolt = <1049000>; > + > + vin-supply = <&main_12v>; > + > + pwms = <&pwm_ij 1 1500 0>; Without the PWM node this won't apply. > + pwm-dutycycle-range = <100 0>; > + > + regulator-boot-on; > + regulator-always-on; > + max-duty-cycle = <1500>; > + /* Voltage Duty-Cycle */ > + voltage-table = <1049000 0>, > + <1039000 3>, > + <1029000 6>, > + <1019000 9>, > + <1009000 12>, > + <999000 14>, > + <989000 17>, > + <979000 20>, > + <969000 23>, > + <959000 26>, > + <949000 29>, > + <939000 31>, > + <929000 34>, > + <919000 37>, > + <909000 40>, > + <899000 43>, > + <889000 45>, > + <879000 48>, > + <869000 51>, > + <859000 54>, > + <849000 56>, > + <839000 59>, > + <829000 62>, > + <819000 65>, > + <809000 68>, > + <799000 70>, > + <789000 73>, > + <779000 76>, > + <769000 79>, > + <759000 81>, > + <749000 84>, > + <739000 87>, > + <729000 89>, > + <719000 92>, > + <709000 95>, > + <699000 98>, > + <689000 100>; This is wrong, the regulator-min-microvolt and regulator-max-microvolt + pwm-dutycycle-range is enough. > + status = "okay"; > + }; > + > > }; > > diff --git a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi > index ad50cba42d19..405a5af9ac1d 100644 > --- a/arch/arm64/boot/dts/amlogic/meson-s4.dtsi > +++ b/arch/arm64/boot/dts/amlogic/meson-s4.dtsi > @@ -17,6 +17,7 @@ cpu0: cpu@0 { > compatible = "arm,cortex-a35"; > reg = <0x0 0x0>; > enable-method = "psci"; > + cpu-supply = <&vddcpu>; > }; > > cpu1: cpu@1 { > @@ -24,6 +25,7 @@ cpu1: cpu@1 { > compatible = "arm,cortex-a35"; > reg = <0x0 0x1>; > enable-method = "psci"; > + cpu-supply = <&vddcpu>; > }; > > cpu2: cpu@2 { > @@ -31,6 +33,7 @@ cpu2: cpu@2 { > compatible = "arm,cortex-a35"; > reg = <0x0 0x2>; > enable-method = "psci"; > + cpu-supply = <&vddcpu>; > }; > > cpu3: cpu@3 { > @@ -38,6 +41,7 @@ cpu3: cpu@3 { > compatible = "arm,cortex-a35"; > reg = <0x0 0x3>; > enable-method = "psci"; > + cpu-supply = <&vddcpu>; > }; > }; > Without a clock, this is useless. Neil