usb: musb: restore INDEX register in resume path

commit 3c5fec75e121b21a2eb35e5a6b44291509abba6f upstream.

Restoring the missing INDEX register value in musb_restore_context().
Without this suspend resume functionality is broken with offmode
enabled.

Acked-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 24212bed2d2a06fae03c4e386facf1507df8498d..b9afd6a26a31f2e78ef63877d6bf0f1b48b8bcfb 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1634,6 +1634,7 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
                        }
                }
        }
+       musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 #else