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usb: musb: clear AUTOSET while clearing DMAENAB

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On the completion of tx dma, dma is disabled by clearing MUSB_TXCSR_DMAENAB in
TXCSR. If MUSB_TXCSR_AUTOSET was set in txstate() it will remain set although
it is not needed in PIO mode. Clear it as soon as it is not needed.

Signed-off-by: Mian Yousaf Kaukab <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>
This commit is contained in:
Mian Yousaf Kaukab 2011-03-15 16:24:24 +01:00 • committed by Felipe Balbi
commit 100d4a9d20
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/musb/musb_gadget.c
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@ -535,7 +535,7 @@ void musb_g_tx(struct musb *musb, u8 epnum)
is_dma = 1;
csr |= MUSB_TXCSR_P_WZC_BITS;
csr &= ~(MUSB_TXCSR_DMAENAB | MUSB_TXCSR_P_UNDERRUN |
MUSB_TXCSR_TXPKTRDY);
MUSB_TXCSR_TXPKTRDY | MUSB_TXCSR_AUTOSET);
musb_writew(epio, MUSB_TXCSR, csr);
/* Ensure writebuffer is empty. */
csr = musb_readw(epio, MUSB_TXCSR);