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06 Dec 2024 21:20:07 +0100 Received: from hlauer by lemon.iwr.uni-heidelberg.de with local (Exim 4.92) (envelope-from ) id 1tJeo1-0006Sy-NN; Fri, 06 Dec 2024 21:20:05 +0100 Date: Fri, 6 Dec 2024 21:20:05 +0100 From: Hermann.Lauer@uni-heidelberg.de To: linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev Subject: [PATCH] ARM: sun8i: r40/a40i: rm unneeded PH23 setup which resets Banana Pi M2 Ultra V1.1 Message-ID: <20241206202005.GA24845@lemon.iwr.uni-heidelberg.de> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241206_122013_756029_028996C4 X-CRM114-Status: UNSURE ( 5.50 ) X-CRM114-Notice: Please train this message. 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 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 --- # HG changeset patch # Parent 236ffa4558b03bbc654515fae80a7a2387f06cd4 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 @@ -347,7 +347,5 @@ }; &usbphy { - usb1_vbus-supply = <®_vcc5v0>; - usb2_vbus-supply = <®_vcc5v0>; status = "okay"; };