diff options
Diffstat (limited to 'drivers/usb/musb/musb_core.c')
| -rw-r--r-- | drivers/usb/musb/musb_core.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c index c78108eb398..f94d91e80af 100644 --- a/drivers/usb/musb/musb_core.c +++ b/drivers/usb/musb/musb_core.c @@ -2327,7 +2327,11 @@ static int musb_suspend(struct device *dev) } spin_unlock_irqrestore(&musb->lock, flags); - musb_save_context(musb); + + /* Need to save state only if it is not yet runtime suspended */ + if (!musb->suspended) { + musb_save_context(musb); + } return 0; } @@ -2340,7 +2344,13 @@ static int musb_resume_noirq(struct device *dev) * module got reset through the PSC (vs just being disabled). */ - musb_restore_context(musb); + /* + * Restore state only if device was not runtime suspended before + * the system suspend + */ + if (!musb->suspended) { + musb_restore_context(musb); + } return 0; } @@ -2349,6 +2359,7 @@ static int musb_runtime_suspend(struct device *dev) struct musb *musb = dev_to_musb(dev); musb_save_context(musb); + musb->suspended = true; return 0; } @@ -2370,6 +2381,7 @@ static int musb_runtime_resume(struct device *dev) if (!first) musb_restore_context(musb); first = 0; + musb->suspended = false; return 0; } |