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[v2,1/2] usb: musb: omap2+: fix context api's

Message ID 1315412364-21384-2-git-send-email-vikram.pandita@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

vikram pandita Sept. 7, 2011, 4:19 p.m. UTC 
From: Vikram Pandita <vikram.pandita@ti.com>

RxFifoSz, TxFifoSz, RxFifoAddr, TxFifoAddr
are all indexed registers.

So before doing a context save or restore, INDEX register
should be set, then only one gets to the right register offset.

Signed-off-by: Vikram Pandita <vikram.pandita@ti.com>
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
---
 drivers/usb/musb/musb_core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 20a2873..6328aaf 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -2159,6 +2159,7 @@  static void musb_save_context(struct musb *musb)
 		if (!epio)
 			continue;
 
+		musb_writeb(musb_base, MUSB_INDEX, i);
 		musb->context.index_regs[i].txmaxp =
 			musb_readw(epio, MUSB_TXMAXP);
 		musb->context.index_regs[i].txcsr =
@@ -2234,6 +2235,7 @@  static void musb_restore_context(struct musb *musb)
 		if (!epio)
 			continue;
 
+		musb_writeb(musb_base, MUSB_INDEX, i);
 		musb_writew(epio, MUSB_TXMAXP,
 			musb->context.index_regs[i].txmaxp);
 		musb_writew(epio, MUSB_TXCSR,