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

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/20200903112554.34263-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paul Cercueil 2020-09-03 13:25:36 +02:00 committed by Greg Kroah-Hartman
parent 7456fe486a
commit 1874b630bd
1 changed files with 3 additions and 5 deletions
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8
drivers/usb/host/ehci-spear.c
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@ -34,8 +34,7 @@ struct spear_ehci {
static struct hc_driver __read_mostly ehci_spear_hc_driver;
#ifdef CONFIG_PM_SLEEP
static int ehci_spear_drv_suspend(struct device *dev)
static int __maybe_unused ehci_spear_drv_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
bool do_wakeup = device_may_wakeup(dev);
@ -43,14 +42,13 @@ static int ehci_spear_drv_suspend(struct device *dev)
return ehci_suspend(hcd, do_wakeup);
}
static int ehci_spear_drv_resume(struct device *dev)
static int __maybe_unused ehci_spear_drv_resume(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
ehci_resume(hcd, false);
return 0;
}
#endif /* CONFIG_PM_SLEEP */
static SIMPLE_DEV_PM_OPS(ehci_spear_pm_ops, ehci_spear_drv_suspend,
ehci_spear_drv_resume);
@ -155,7 +153,7 @@ static struct platform_driver spear_ehci_hcd_driver = {
.driver = {
.name = "spear-ehci",
.bus = &platform_bus_type,
.pm = &ehci_spear_pm_ops,
.pm = pm_ptr(&ehci_spear_pm_ops),
.of_match_table = spear_ehci_id_table,
}
};