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[82.149.19.102]) by smtp.gmail.com with ESMTPSA id u17-20020a1709061db100b0073c0b87ba34sm1853442ejh.198.2022.10.12.15.01.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Oct 2022 15:01:39 -0700 (PDT) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Chen-Yu Tsai , Samuel Holland Cc: Samuel Holland , Krzysztof Kozlowski , Rob Herring , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH v3 1/2] ARM: dts: axp803/axp81x: Drop GPIO LDO pinctrl nodes Date: Thu, 13 Oct 2022 00:01:38 +0200 Message-ID: <4454781.cEBGB3zze1@kista> In-Reply-To: <20220916042751.47906-2-samuel@sholland.org> References: <20220916042751.47906-1-samuel@sholland.org> <20220916042751.47906-2-samuel@sholland.org> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Hi Samuel, Dne petek, 16. september 2022 ob 06:27:50 CEST je Samuel Holland napisal(a): > The "ldo-io0" and "ldo-io1" regulators are enabled/disabled by toggling > the pinmux between two functions. This happens in the regulator driver. > Setting the pinmux to "ldo" in the DT is inappropriate because it would > enable the regulator before the driver has a chance to set the correct > initial voltage. > > Signed-off-by: Samuel Holland Reviewed-by: Jernej Skrabec Best regards, Jernej > --- > > Changes in v3: > - Added patch to remove existing "ldo" pinctrl nodes > > arch/arm/boot/dts/axp81x.dtsi | 14 -------------- > arch/arm64/boot/dts/allwinner/axp803.dtsi | 10 ---------- > 2 files changed, 24 deletions(-) > > diff --git a/arch/arm/boot/dts/axp81x.dtsi b/arch/arm/boot/dts/axp81x.dtsi > index b93387b0c1c3..ebaf1c3ce8db 100644 > --- a/arch/arm/boot/dts/axp81x.dtsi > +++ b/arch/arm/boot/dts/axp81x.dtsi > @@ -62,16 +62,6 @@ axp_gpio: gpio { > compatible = "x-powers,axp813-gpio"; > gpio-controller; > #gpio-cells = <2>; > - > - gpio0_ldo: gpio0-ldo-pin { > - pins = "GPIO0"; > - function = "ldo"; > - }; > - > - gpio1_ldo: gpio1-ldo-pin { > - pins = "GPIO1"; > - function = "ldo"; > - }; > }; > > battery_power_supply: battery-power { > @@ -144,15 +134,11 @@ reg_fldo3: fldo3 { > }; > > reg_ldo_io0: ldo-io0 { > - pinctrl-names = "default"; > - pinctrl-0 = <&gpio0_ldo>; > /* Disable by default to avoid conflicts with GPIO */ > status = "disabled"; > }; > > reg_ldo_io1: ldo-io1 { > - pinctrl-names = "default"; > - pinctrl-0 = <&gpio1_ldo>; > /* Disable by default to avoid conflicts with GPIO */ > status = "disabled"; > }; > diff --git a/arch/arm64/boot/dts/allwinner/axp803.dtsi > b/arch/arm64/boot/dts/allwinner/axp803.dtsi index > 578ef368e2b4..a6b4b87f185d 100644 > --- a/arch/arm64/boot/dts/allwinner/axp803.dtsi > +++ b/arch/arm64/boot/dts/allwinner/axp803.dtsi > @@ -25,16 +25,6 @@ axp_gpio: gpio { > compatible = "x-powers,axp803-gpio", "x-powers,axp813- gpio"; > gpio-controller; > #gpio-cells = <2>; > - > - gpio0_ldo: gpio0-ldo-pin { > - pins = "GPIO0"; > - function = "ldo"; > - }; > - > - gpio1_ldo: gpio1-ldo-pin { > - pins = "GPIO1"; > - function = "ldo"; > - }; > }; > > battery_power_supply: battery-power { > -- > 2.35.1