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[86.58.14.70]) by smtp.gmail.com with ESMTPSA id 8-20020a05600c020800b0040e89ade83fsm402726wmi.1.2024.01.23.12.58.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Jan 2024 12:58:25 -0800 (PST) From: Jernej =?utf-8?B?xaBrcmFiZWM=?= To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Andre Przywara , Florian Fainelli , Wei Xu , Gregory CLEMENT , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org, =?utf-8?B?6bqm5YGl5bu6?= Subject: Re: [PATCH v2] ARM: dts: sun8i: Open FETA40i-C regulator aldo1 Date: Tue, 23 Jan 2024 21:58:24 +0100 Message-ID: <23373941.6Emhk5qWAg@jernej-laptop> In-Reply-To: References: MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240123_125829_561774_FB6144CF X-CRM114-Status: GOOD ( 12.66 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Dne torek, 26. december 2023 ob 09:40:05 CET je Fuyao Kashizuku napisal(a): > The USB PHY in the Allwinner R40 SoC seems to rely on voltage on the > VCC-TVIN/OUT supply pins for proper operation, on top of its own supply > voltage on VCC-USB. Without a 3.3V voltage supplied to VCC-TV*, USB > operation becomes unstable and can result in disconnects. > > The Forlinx FETA40i-C SoM connects both the VCC-TVOUT and VCC-TVIN pins > to the ALDO1 rail of the PMIC, so we need to enable that rail for USB > operation. Since there is no supply property in the DT bindings for > the USB core, we need to always enable the regulator. > > This fixes unstable USB operation on boards using the Forlinx FETA40i-C > module. > > Signed-off-by: Fuyao Kashizuku Merged, thanks! Best regards, Jernej _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel