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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6831187ecb7sm8674536a12.29.2026.05.21.01.58.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 21 May 2026 01:58:14 -0700 (PDT) Message-ID: <04d53467-a802-4221-87f3-95738136dc21@oss.qualcomm.com> Date: Thu, 21 May 2026 10:58:09 +0200 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 11/11] arm64: dts: qcom: sc8280xp-arcata: Drop duplicate DMIC supplies To: jerome.debretagne@gmail.com, Douglas Anderson , Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, Krzysztof Kozlowski , Stephan Gerhold References: <20260520-surface-sp9-5g-for-next-v1-0-9df52552bf87@gmail.com> <20260520-surface-sp9-5g-for-next-v1-11-9df52552bf87@gmail.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260520-surface-sp9-5g-for-next-v1-11-9df52552bf87@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: _WrIRYHs6JDbsTKTFKLpqyGXTHi8ihyv X-Proofpoint-GUID: _WrIRYHs6JDbsTKTFKLpqyGXTHi8ihyv X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIxMDA4NyBTYWx0ZWRfXy+040b2DqvzY 650ycchYGODGw5KcNBzlWDIaLFxR1G2bm/WecCMCAVL/LSmvs8u2BKfNGdKkeYw24UpT43DPxzl xXuiDrirZJKCNQQLGLM5O9OYuOuc2ffiW9SlOrVHwlN9JeLXzpS2dEuvXyUZXQezhuRHlrmyptD kN1RmldEeZmOhmpF8i3UDpeCjFbrCXPVHwYk1Kmnf8GzuCLkURhQHVRbnWmszwhNSNy1gSQoPgN Nnt8i4FEiTKeGP+iRJYH4QKh9XOyc1cGrBr+khDgNnho/Wt3nWLG86AOV2jauJ4gdKB4oBp0q9b RQQMqmUIjPS/+a9dRhYra6g+nyzcihjQCUeq3pkc/+RaFZSdD8q77B6Uiimi7hRyTIoBll2an5Z CjbnqpU4ijUPYTJfHEyfD/gevgmeE2SPzUyg4hEhPuDZhWCYwd03yzVlqai49TQ5j6vBfxJj5VE xJaIbKVXcIaZELS4iTA== X-Authority-Analysis: v=2.4 cv=GqFyPE1C c=1 sm=1 tr=0 ts=6a0ec928 cx=c_pps a=EVbN6Ke/fEF3bsl7X48z0g==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=pGLkceISAAAA:8 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=S3QPRrZGCkirkA1mjOoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=a_PwQJl-kcHnX1M80qC6:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-21_01,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 clxscore=1015 impostorscore=0 suspectscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605210087 On 5/20/26 6:40 PM, Jérôme de Bretagne via B4 Relay wrote: > From: Jérôme de Bretagne > > Align with the reference implementation from the ThinkPad X13s. > > The audio-routing setup specifies two power supplies for each DMIC, > but only one of them can be active at the same time. > > Drop the redundant routes to the pull-up "VA MIC BIASn" supplies as > done in commit a2e617f4e698 ("arm64: dts: qcom: sc8280xp-x13s: Drop > duplicate DMIC supplies"). > > There is no functional difference except that we skip briefly switching > to pull-up mode when shutting down the microphone. > > Cc: Stephan Gerhold > Signed-off-by: Jérôme de Bretagne > --- Reviewed-by: Konrad Dybcio Konrad