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usb: xhci-plat: separate dev_pm_ops for each pm_event

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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
This commit is contained in:
Guan-Yu Lin 2025-09-11 14:20:13 +00:00 committed by Greg Kroah-Hartman
parent 6f9871b3e8
commit ddb473a51b
1 changed files with 19 additions and 4 deletions
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23
drivers/usb/host/xhci-plat.c
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@ -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,