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13 Dec 2024 20:54:34 +0100 Received: from hlauer by lemon.iwr.uni-heidelberg.de with local (Exim 4.92) (envelope-from ) id 1tMBk9-0000QN-SP; Fri, 13 Dec 2024 20:54:33 +0100 Date: Fri, 13 Dec 2024 20:54:33 +0100 From: Hermann.Lauer@uni-heidelberg.de To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v2] ARM: dts: sun8i-r40: remove unused GPIO regulator Message-ID: <20241213195433.GA1568@lemon.iwr.uni-heidelberg.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Subject: [PATCH v2] ARM: dts: sun8i-r40: remove unused GPIO regulator Banana Pi M2 Ultra V1.1 board resets immediately when the usb core tries to setup PH23 GPIO. It turned out that the V1.0 board USB-A ports are always power supplied and according to the board scheme PH23 is simply not connected. So remove the PH23 setup: Doesn't harm V1.0 (with R40) and let V1.1 (with A40i) start. Signed-off-by: Hermann Lauer Reviewed-by: Andre Przywara --- V2: shorten subject, rm dangerous PH23 regulator completely diff --git a/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts b/= arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts --- a/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts +++ b/arch/arm/boot/dts/allwinner/sun8i-r40-bananapi-m2-ultra.dts @@ -91,15 +91,6 @@ }; }; =20 - reg_vcc5v0: vcc5v0 { - compatible =3D "regulator-fixed"; - regulator-name =3D "vcc5v0"; - regulator-min-microvolt =3D <5000000>; - regulator-max-microvolt =3D <5000000>; - gpio =3D <&pio 7 23 GPIO_ACTIVE_HIGH>; /* PH23 */ - enable-active-high; - }; - wifi_pwrseq: pwrseq { compatible =3D "mmc-pwrseq-simple"; reset-gpios =3D <&pio 6 10 GPIO_ACTIVE_LOW>; /* PG10 WIFI_EN */ @@ -347,7 +338,5 @@ }; =20 &usbphy { - usb1_vbus-supply =3D <®_vcc5v0>; - usb2_vbus-supply =3D <®_vcc5v0>; status =3D "okay"; };