musb: save and restore missing bus control register

Added the missing BUS_CONTROL register in musb
save/restore routines.

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

2 files changed, 3 insertions, 1 deletions

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 0e8b8ab1d168..3342b82d4e53 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2176,6 +2176,7 @@ void musb_save_context(struct musb *musb)
         if (is_host_enabled(musb)) {
                 musb_context.frame = musb_readw(musb_base, MUSB_FRAME);
                 musb_context.testmode = musb_readb(musb_base, MUSB_TESTMODE);
+                musb_context.busctl = musb_read_ulpi_buscontrol(musb->mregs);
         }
         musb_context.power = musb_readb(musb_base, MUSB_POWER);
         musb_context.intrtxe = musb_readw(musb_base, MUSB_INTRTXE);
@@ -2247,6 +2248,7 @@ void musb_restore_context(struct musb *musb)
         if (is_host_enabled(musb)) {
                 musb_writew(musb_base, MUSB_FRAME, musb_context.frame);
                 musb_writeb(musb_base, MUSB_TESTMODE, musb_context.testmode);
+                musb_write_ulpi_buscontrol(musb->mregs, musb_context.busctl);
         }
         musb_writeb(musb_base, MUSB_POWER, musb_context.power);
         musb_writew(musb_base, MUSB_INTRTXE, musb_context.intrtxe);
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index cd9f4a9a06c6..ac17b004909b 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -478,7 +478,7 @@ struct musb_context_registers {
         u16 frame;
         u8 index, testmode;
 
-        u8 devctl, misc;
+        u8 devctl, busctl, misc;
 
         struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
 };