@@ -226,6 +226,7 @@ static int xhci_plat_remove(struct platform_device *dev)
#ifdef CONFIG_PM_SLEEP
static int xhci_plat_suspend(struct device *dev)
{
+ int ret;
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
@@ -237,14 +238,25 @@ static int xhci_plat_suspend(struct device *dev)
* reconsider this when xhci_plat_suspend enlarges its scope, e.g.,
* also applies to runtime suspend.
*/
- return xhci_suspend(xhci, device_may_wakeup(dev));
+ ret = xhci_suspend(xhci, device_may_wakeup(dev));
+ if (ret)
+ return ret;
+
+ clk_disable_unprepare(xhci->clk);
+
+ return ret;
}
static int xhci_plat_resume(struct device *dev)
{
+ int ret;
struct usb_hcd *hcd = dev_get_drvdata(dev);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ ret = clk_prepare_enable(xhci->clk);
+ if (ret)
+ return ret;
+
return xhci_resume(xhci, 0);
}
Commit 4718c1774051 ("usb: host: xhci-plat: add clock support") adds optional clk support, but it forgets to prepare/disable and enable/unprepare the clk in the resume/suspend path. This path fixes this issue by adding missing clk related calls. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Fixes: 4718c1774051 ("usb: host: xhci-plat: add clock support") --- drivers/usb/host/xhci-plat.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-)