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-rw-r--r--drivers/usb/musb/musb_gadget.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 876787438c2f..be18537c5f14 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -408,7 +408,19 @@ static void txstate(struct musb *musb, struct musb_request *req)
408 csr |= (MUSB_TXCSR_DMAENAB 408 csr |= (MUSB_TXCSR_DMAENAB
409 | MUSB_TXCSR_DMAMODE 409 | MUSB_TXCSR_DMAMODE
410 | MUSB_TXCSR_MODE); 410 | MUSB_TXCSR_MODE);
411 if (!musb_ep->hb_mult) 411 /*
412 * Enable Autoset according to table
413 * below
414 * bulk_split hb_mult Autoset_Enable
415 * 0 0 Yes(Normal)
416 * 0 >0 No(High BW ISO)
417 * 1 0 Yes(HS bulk)
418 * 1 >0 Yes(FS bulk)
419 */
420 if (!musb_ep->hb_mult ||
421 (musb_ep->hb_mult &&
422 can_bulk_split(musb,
423 musb_ep->type)))
412 csr |= MUSB_TXCSR_AUTOSET; 424 csr |= MUSB_TXCSR_AUTOSET;
413 } 425 }
414 csr &= ~MUSB_TXCSR_P_UNDERRUN; 426 csr &= ~MUSB_TXCSR_P_UNDERRUN;
@@ -1110,11 +1122,15 @@ static int musb_gadget_enable(struct usb_ep *ep,
1110 /* Set TXMAXP with the FIFO size of the endpoint 1122 /* Set TXMAXP with the FIFO size of the endpoint
1111 * to disable double buffering mode. 1123 * to disable double buffering mode.
1112 */ 1124 */
1113 if (musb->double_buffer_not_ok) 1125 if (musb->double_buffer_not_ok) {
1114 musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx); 1126 musb_writew(regs, MUSB_TXMAXP, hw_ep->max_packet_sz_tx);
1115 else 1127 } else {
1128 if (can_bulk_split(musb, musb_ep->type))
1129 musb_ep->hb_mult = (hw_ep->max_packet_sz_tx /
1130 musb_ep->packet_sz) - 1;
1116 musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz 1131 musb_writew(regs, MUSB_TXMAXP, musb_ep->packet_sz
1117 | (musb_ep->hb_mult << 11)); 1132 | (musb_ep->hb_mult << 11));
1133 }
1118 1134
1119 csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG; 1135 csr = MUSB_TXCSR_MODE | MUSB_TXCSR_CLRDATATOG;
1120 if (musb_readw(regs, MUSB_TXCSR) 1136 if (musb_readw(regs, MUSB_TXCSR)