From: Prashanth K <prashanth.k@oss.qualcomm.com>
To: Vinod Koul <vkoul@kernel.org>,
Kishon Vijay Abraham I <kishon@kernel.org>
Cc: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>,
linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org,
linux-kernel@vger.kernel.org,
Prashanth K <prashanth.k@oss.qualcomm.com>
Subject: [PATCH v1 1/2] phy: qcom: qmp-combo: Add PM suspend/resume callbacks
Date: Thu, 22 Oct 2026 16:13:20 +0530 [thread overview]
Message-ID: <20261022104321.306679-2-prashanth.k@oss.qualcomm.com> (raw)
In-Reply-To: <20261022104321.306679-1-prashanth.k@oss.qualcomm.com>
Currently when we perform system suspend, the phy clocks aren't
turned off leading to power leakage. Prevent this by adding PM
suspend/resume callbacks for the qmp-combo-phy which toggles
clocks on/off correspondingly.
Signed-off-by: Prashanth K <prashanth.k@oss.qualcomm.com>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index c39ced168d03..f624195c9b84 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -4463,9 +4463,26 @@ static int __maybe_unused qmp_combo_runtime_resume(struct device *dev)
return 0;
}
+static int __maybe_unused qmp_combo_pm_suspend(struct device *dev)
+{
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ return qmp_combo_runtime_suspend(dev);
+}
+
+static int __maybe_unused qmp_combo_pm_resume(struct device *dev)
+{
+ if (pm_runtime_suspended(dev))
+ return 0;
+
+ return qmp_combo_runtime_resume(dev);
+}
+
static const struct dev_pm_ops qmp_combo_pm_ops = {
SET_RUNTIME_PM_OPS(qmp_combo_runtime_suspend,
qmp_combo_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(qmp_combo_pm_suspend, qmp_combo_pm_resume)
};
static int qmp_combo_reset_init(struct qmp_combo *qmp)
--
2.34.1
next prev parent reply other threads:[~2026-10-22 10:43 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-22 10:43 [PATCH v1 0/2] Add the PM suspend/resume callbacks for qcom-combo phys Prashanth K
2026-10-22 10:43 ` Prashanth K [this message]
2026-10-22 10:43 ` [PATCH v1 2/2] phy: qcom: qmp-usb: Add PM suspend/resume callbacks Prashanth K
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