usb: musb: restore INDEX register in resume path

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

Cc: stable@kernel.org
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>

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index c6ab321..4d39e08 100644 (file)
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2282,6 +2282,7 @@ static void musb_restore_context(struct musb *musb)
                                musb->context.index_regs[i].rxhubport);
                }
        }
+       musb_writeb(musb_base, MUSB_INDEX, musb->context.index);
 }
 
 static int musb_suspend(struct device *dev)