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usb/host: ehci-platform: Use pm_ptr() macro

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Use the newly introduced pm_ptr() macro, and mark the suspend/resume
functions __maybe_unused. These functions can then be moved outside the
CONFIG_PM_SUSPEND block, and the compiler can then process them and
detect build failures independently of the config. If unused, they will
simply be discarded by the compiler.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20200903112554.34263-5-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Cercueil 2020-09-03 13:25:38 +02:00 committed by Greg Kroah-Hartman
parent 879a4a6628
commit 7456fe486a
1 changed files with 3 additions and 5 deletions
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8
drivers/usb/host/ehci-platform.c
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@ -410,8 +410,7 @@ static int ehci_platform_remove(struct platform_device *dev)
return 0;
}
#ifdef CONFIG_PM_SLEEP
static int ehci_platform_suspend(struct device *dev)
static int __maybe_unused ehci_platform_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct usb_ehci_pdata *pdata = dev_get_platdata(dev);
@ -433,7 +432,7 @@ static int ehci_platform_suspend(struct device *dev)
return ret;
}
static int ehci_platform_resume(struct device *dev)
static int __maybe_unused ehci_platform_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct usb_ehci_pdata *pdata = dev_get_platdata(dev);
@ -464,7 +463,6 @@ static int ehci_platform_resume(struct device *dev)
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static const struct of_device_id vt8500_ehci_ids[] = {
{ .compatible = "via,vt8500-ehci", },
@ -499,7 +497,7 @@ static struct platform_driver ehci_platform_driver = {
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ehci-platform",
.pm = &ehci_platform_pm_ops,
.pm = pm_ptr(&ehci_platform_pm_ops),
.of_match_table = vt8500_ehci_ids,
.acpi_match_table = ACPI_PTR(ehci_acpi_match),
}