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 e176a06ed01021d86695f53c09ae57ef676524e1..2413c0fcac6d3b1037522cb9d94216dac2a07a29 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1640,6 +1640,7 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
                        }
                }
        }
+       musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 #else