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Sat, 21 Mar 2026 14:54:48 -0700 (PDT) Message-ID: Date: Sat, 21 Mar 2026 21:54:47 +0000 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 09/11] arm64: dts: qcom: x1e80100-lenovo-yoga-slim7x: Add l7b_2p8 voltage regulator for RGB camera To: Tobias Heider Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Aleksandrs Vinarskis References: <20260316-x1e-camss-csi2-phy-dtsi-v2-0-859f3fa55790@linaro.org> <20260316-x1e-camss-csi2-phy-dtsi-v2-9-859f3fa55790@linaro.org> From: Bryan O'Donoghue Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 21/03/2026 11:10, Tobias Heider wrote: > I included this in my Ubuntu test kernel builds and got reports about > reboot loops > on the Lenovo Yoga Slim 7x. > > Your change seems to be based on > https://github.com/alexVinarskis/linux/commit/ > a94d1f4e1d025398060d7e0dc2270b8e375f6f60 > which I had previously tested too and didn't see any issues with. > The only difference is that your version uses different > regulator-min-microvolt and > regulator-max-microvolt values (3072000 vs 2800000). > > Setting them to 2800000 like in Aleksandrs patch seems to fix the boot issue. > >> + regulator-initial-mode = ; >> + }; >> + Thank you for investigating this on real hardware. I choose to stick to the regulator values apparent on the adjacent - but apparently 2.8 is the right value. Debug appreciated. --- bod