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Thu, 22 Oct 2026 03:43:34 -0700 (PDT) Received: from hu-prashk-hyd.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2ea3b43b53dsm22327565ad.39.2026.10.22.03.43.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Oct 2026 03:43:33 -0700 (PDT) From: Prashanth K To: Vinod Koul , Kishon Vijay Abraham I Cc: Krishna Kurapati , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Prashanth K Subject: [PATCH v1 2/2] phy: qcom: qmp-usb: Add PM suspend/resume callbacks Date: Thu, 22 Oct 2026 16:13:21 +0530 Message-Id: <20261022104321.306679-3-prashanth.k@oss.qualcomm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261022104321.306679-1-prashanth.k@oss.qualcomm.com> References: <20261022104321.306679-1-prashanth.k@oss.qualcomm.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIyMDA0MiBTYWx0ZWRfX9B4c+OcrMEeG t8jGZCE5KK+3DynK14k9CEejXF4h0yYye5ZMrqvtDo7sVdIF6R1PMR8Ipj9+9ZkSGfYqoQNaPZD LtVgSPcShNUgVFPr8YrlyynZKu3y1gM= X-Proofpoint-GUID: 8kDw12cwoAb_jMVSnleOXlUmws8hrB14 X-Proofpoint-ORIG-GUID: 8kDw12cwoAb_jMVSnleOXlUmws8hrB14 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIyMDA0MiBTYWx0ZWRfX2etvxzTXc6pm XpbcBacoayEETQ5H83Qdoj8QkGj7Q8hISKqAaox3dHFDoQa/6aPjWNTB2FSF2fI4qFDZhSu0Iqs dApRl2lqgqFFrFAh95bAvMozdfovHw923j95aoUROXB3oDBFpo7F/6iq/Hg50351BkQE2/HvUs7 pPGemrbpTUuerZVfc687ix1XKE+uYpUzwHUEyF7wwuI0YRywBxRusb5FshaUXF79SAFjWPZ8gX/ 0Q1UAQBY47hgbV2CKNvr3eHsy4lQK7etz7fQMMKgr1+iVO/IfjNGAmhglcKUU0LN3Eu2S1tIZED FTw0mVMD4CMa2iIx/76Oovbw3VkM6B2hMbjRluY3GjVCrnN+jUWk1I4iOqU2PbvqjEEU/AFzbox eNdcVugtWuQ21KlxTPPxh1+2xAWeWg== X-Authority-Analysis: v=2.4 cv=HJxWhYtv c=1 sm=1 tr=0 ts=6ad9e8d7 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=AU_F4iWOBUEdUAq3O7UA:9 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-22_04,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 phishscore=0 malwarescore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610220042 Currently when we perform system suspend, the phy clocks aren't turned off, this leads to power leakage. Prevent this by adding PM suspend/resume callbacks for the qmp-usb phy which toggles clocks on/off correspondingly. Signed-off-by: Prashanth K --- drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c index b0790bcf0bc8..d2863633007d 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c @@ -2150,9 +2150,26 @@ static int __maybe_unused qmp_usb_runtime_resume(struct device *dev) return 0; } +static int __maybe_unused qmp_usb_pm_suspend(struct device *dev) +{ + if (pm_runtime_suspended(dev)) + return 0; + + return qmp_usb_runtime_suspend(dev); +} + +static int __maybe_unused qmp_usb_pm_resume(struct device *dev) +{ + if (pm_runtime_suspended(dev)) + return 0; + + return qmp_usb_runtime_resume(dev); +} + static const struct dev_pm_ops qmp_usb_pm_ops = { SET_RUNTIME_PM_OPS(qmp_usb_runtime_suspend, qmp_usb_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(qmp_usb_pm_suspend, qmp_usb_pm_resume) }; static int qmp_usb_reset_init(struct qmp_usb *qmp, -- 2.34.1