USB: gadget: Implement runtime PM for MSM bus glue driver

OTG driver takes care of putting hardware in low power mode.  Hence
not registered for any runtime PM callbacks.

Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/usb/gadget/ci13xxx_msm.c b/drivers/usb/gadget/ci13xxx_msm.c
index c497337bb72b..139ac9419597 100644
--- a/drivers/usb/gadget/ci13xxx_msm.c
+++ b/drivers/usb/gadget/ci13xxx_msm.c
@@ -18,6 +18,7 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
 #include <linux/usb/msm_hsusb_hw.h>
 #include <linux/usb/ulpi.h>
 
@@ -108,6 +109,9 @@ static int ci13xxx_msm_probe(struct platform_device *pdev)
                 goto udc_remove;
         }
 
+        pm_runtime_no_callbacks(&pdev->dev);
+        pm_runtime_enable(&pdev->dev);
+
         return 0;
 
 udc_remove: