From: Anand Gadiyar <gadiyar@xxxxxx> If Indexed Mode register accesses are enabled, the ep0_rxstate() function calls musb_g_ep0_giveback() before writing to the CSR register. When control returns to this ep0_rxstate, the index register contents are over-written. This causes the CSR register write to fail. Fixed by writing the correct value into the index register before writing to the CSR. This was observed only in ep0_rxstate() with g_ether loaded and the device connected to a MS Windows host PC. Anticipatively fixed ep0_txstate() as well. Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx> --- Fixed my mailer finally. :) drivers/usb/musb/musb_gadget_ep0.c | 2 ++ 1 files changed, 2 insertions(+) Index: linux-omap-2.6/drivers/usb/musb/musb_gadget_ep0.c =================================================================== --- linux-omap-2.6.orig/drivers/usb/musb/musb_gadget_ep0.c 2008-04-14 15:36:38.000000000 +0530 +++ linux-omap-2.6/drivers/usb/musb/musb_gadget_ep0.c 2008-08-21 18:12:11.688711634 +0530 @@ -476,6 +476,7 @@ static void ep0_rxstate(struct musb *mus return; musb->ackpend = 0; } + musb_ep_select(musb->mregs, 0); musb_writew(regs, MUSB_CSR0, tmp); } @@ -528,6 +529,7 @@ static void ep0_txstate(struct musb *mus } /* send it out, triggering a "txpktrdy cleared" irq */ + musb_ep_select(musb->mregs, 0); musb_writew(regs, MUSB_CSR0, csr); } -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
