[PATCH] usb: musb: fix context save over suspend.

[NeilBrown]

The standard suspend sequence involves runtime_resuming
devices before suspending the system.
So just saving context in runtime_suspend and restoring it
in runtime resume isn't enough.  We  must also save in "suspend"
and restore in "resume".

Without this patch, and OMAP3 system with off_mode enabled will find
the musb port non-functional after suspend/resume.  With the patch it
works perfectly.

Signed-off-by: NeilBrown <ne...@suse.de>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index fd34867..b6ccc02 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2225,6 +2225,7 @@ static int musb_suspend(struct device *dev)
        }
 
        spin_unlock_irqrestore(&musb->lock, flags);
+       musb_save_context(musb);
        return 0;
 }
 
@@ -2234,6 +2235,8 @@ static int musb_resume_noirq(struct device *dev)
         * unless for some reason the whole soc powered down or the USB
         * module got reset through the PSC (vs just being disabled).
         */
+       struct musb     *musb = dev_to_musb(dev);
+       musb_restore_context(musb);
        return 0;
 }
 

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