diff options
| author | Guan-Yu Lin <guanyulin@google.com> | 2025-09-11 14:20:13 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-12 14:08:02 +0200 |
| commit | ddb473a51b4bf33d040d827ae9a8724ee5ef1a36 (patch) | |
| tree | 734d78c4dc87caf5624cbc89dc6c70c2397009f0 | |
| parent | 6f9871b3e8c31953978db552c730a7e017e51d19 (diff) | |
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
| -rw-r--r-- | drivers/usb/host/xhci-plat.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 5eb51797de32..df2e942ad5f7 100644 --- 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, |