usb: xhci-plat: separate dev_pm_ops for each pm_event

Separate dev_pm_ops for different power events such as suspend, thaw,
and hibernation. This is crucial when xhci-plat driver needs to adapt
its behavior based on different power state changes.

Signed-off-by: Guan-Yu Lin <guanyulin@google.com>
Link: https://lore.kernel.org/r/20250911142051.90822-2-guanyulin@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20250911142051.90822-2-guanyulin@google.com

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 5eb51797de326ac41faa1448eba001ef25315d63..df2e942ad5f7b4d8f450ecd1d6fba0200b7f3d87 100644 (file)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -454,7 +454,7 @@ void xhci_plat_remove(struct platform_device *dev)
 }
 EXPORT_SYMBOL_GPL(xhci_plat_remove);
 
-static int xhci_plat_suspend(struct device *dev)
+static int xhci_plat_suspend_common(struct device *dev)
 {
        struct usb_hcd  *hcd = dev_get_drvdata(dev);
        struct xhci_hcd *xhci = hcd_to_xhci(hcd);
@@ -482,6 +482,16 @@ static int xhci_plat_suspend(struct device *dev)
        return 0;
 }
 
+static int xhci_plat_suspend(struct device *dev)
+{
+       return xhci_plat_suspend_common(dev);
+}
+
+static int xhci_plat_freeze(struct device *dev)
+{
+       return xhci_plat_suspend_common(dev);
+}
+
 static int xhci_plat_resume_common(struct device *dev, bool power_lost)
 {
        struct usb_hcd  *hcd = dev_get_drvdata(dev);
@@ -529,6 +539,11 @@ static int xhci_plat_resume(struct device *dev)
        return xhci_plat_resume_common(dev, false);
 }
 
+static int xhci_plat_thaw(struct device *dev)
+{
+       return xhci_plat_resume_common(dev, false);
+}
+
 static int xhci_plat_restore(struct device *dev)
 {
        return xhci_plat_resume_common(dev, true);
@@ -558,9 +573,9 @@ static int __maybe_unused xhci_plat_runtime_resume(struct device *dev)
 const struct dev_pm_ops xhci_plat_pm_ops = {
        .suspend = pm_sleep_ptr(xhci_plat_suspend),
        .resume = pm_sleep_ptr(xhci_plat_resume),
-       .freeze = pm_sleep_ptr(xhci_plat_suspend),
-       .thaw = pm_sleep_ptr(xhci_plat_resume),
-       .poweroff = pm_sleep_ptr(xhci_plat_suspend),
+       .freeze = pm_sleep_ptr(xhci_plat_freeze),
+       .thaw = pm_sleep_ptr(xhci_plat_thaw),
+       .poweroff = pm_sleep_ptr(xhci_plat_freeze),
        .restore = pm_sleep_ptr(xhci_plat_restore),
 
        SET_RUNTIME_PM_OPS(xhci_plat_runtime_suspend,