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usb: musb: omap2+: fix context api's

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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>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Vikram Pandita 2011-09-07 09:19:23 -07:00 committed by Felipe Balbi
parent be18a25189
commit ea73755445
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/musb/musb_core.c
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@ -2158,6 +2158,7 @@ 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 =
@ -2233,6 +2234,7 @@ 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,