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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6580781b7f9sm3817217a12.17.2026.01.22.06.52.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 22 Jan 2026 06:52:44 -0800 (PST) Message-ID: <5ed9e11b-cfed-472b-b92a-e6b34c50a39f@oss.qualcomm.com> Date: Thu, 22 Jan 2026 15:52:42 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/6] phy: qcom: qmp-combo: Prevent unnecessary PM runtime suspend at boot To: Loic Poulain , vkoul@kernel.org, kishon@kernel.org Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, dmitry.baryshkov@oss.qualcomm.com, neil.armstrong@linaro.org References: <20260121142827.2583-1-loic.poulain@oss.qualcomm.com> <20260121142827.2583-2-loic.poulain@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260121142827.2583-2-loic.poulain@oss.qualcomm.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTIyMDExMyBTYWx0ZWRfXzLnd6+L7xaiE bjSFxyqkTXk3dn9sXHPknXXC2lHW3F7YzqnR5Z6+NEU3tbbhL7WPrkL+iPoAFic0Sr6ZK2i2Xf6 ovEr4wkZrygrliDBeS+v9A8I666Pi2h4eIx1Hb8bce/qvEWOjm5r/ZId9umHsIrSVCv2ek9WJS8 902YDyxceH9jNM+nEKoLt6UU02CkervhNcpQ1YvxQu6cB/8O9innk0Bm0MIe9gKNMDK1PmMorAx /G84hkV8VQlG1FBrhalsmzTcYMt+7aDjc0rkmogGjDdqLxG2eg93rwPeny8YEmMupjiC3eDVT9X B8z7HGcN3n3zhY2W/JFK2vzBVD9QYCynLn9ttkVLtg0s2crSLb8poSh3yJExYb9FJ9hOT2TRWr1 y8JpVGtUGeXwoRQL42dASmjsi5jqMbwJ7UCk4TUmYNL8frifLykRoMA9+8D9BWcm/7WbkYrOzGO WsUmEkw4Bhjads16fUQ== X-Authority-Analysis: v=2.4 cv=OZGVzxTY c=1 sm=1 tr=0 ts=697239be cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=pxQL0frbaL4a0zJdC2sA:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: UKOIOnRhphxWckAc-TFWyeagwH3Di8R2 X-Proofpoint-GUID: UKOIOnRhphxWckAc-TFWyeagwH3Di8R2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.20,FMLib:17.12.100.49 definitions=2026-01-22_02,2026-01-22_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 impostorscore=0 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 spamscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601220113 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260122_065248_352824_5C9CF666 X-CRM114-Status: GOOD ( 10.00 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On 1/21/26 3:28 PM, Loic Poulain wrote: > There is a small window where the device can suspend after > pm_runtime_enable() and before pm_runtime_forbid(), causing an > unnecessary suspend/resume cycle while the PHY is not yet registered. > > Move pm_runtime_forbid() before pm_runtime_enable() to eliminate > this race. > > Signed-off-by: Loic Poulain > Reviewed-by: Dmitry Baryshkov > --- Reviewed-by: Konrad Dybcio Konrad -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy