By enabling runtime pm in this driver allows users of
xhci-plat to enter into runtime pm. This is not full
runtime pm support (AKA xhci-plat doesn't actually power
anything off when in runtime suspend mode) but,
just basic enablement.
Signed-off-by: Vivek Gautam <gautam.vi...@samsung.com>
CC: Doug Anderson <diand...@chromium.org>
---
drivers/usb/host/xhci-plat.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index c9c7e13..595cb52 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -12,6 +12,7 @@
*/
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/module.h>
#include <linux/slab.h>
@@ -149,6 +150,8 @@ static int xhci_plat_probe(struct platform_device *pdev)
if (ret)
goto put_usb3_hcd;
+ pm_runtime_enable(&pdev->dev);
+
return 0;
put_usb3_hcd:
@@ -174,6 +177,10 @@ static int xhci_plat_remove(struct platform_device *dev)
struct usb_hcd *hcd = platform_get_drvdata(dev);
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
+ if (!pm_runtime_suspended(&dev->dev))
+ pm_runtime_put(&dev->dev);
+ pm_runtime_disable(&dev->dev);
+
usb_remove_hcd(xhci->shared_hcd);
usb_put_hcd(xhci->shared_hcd);
--
1.7.6.5
--
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