Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
drivers/usb/musb/musb_gadget.c | 34 +++++++++++++++-------------------
1 files changed, 15 insertions(+), 19 deletions(-)
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 5c4392b..2bb50ca 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -722,6 +722,7 @@ static void rxstate(struct musb *musb, struct musb_request *req)
struct dma_controller *c;
struct dma_channel *channel;
int use_dma = 0;
+ int transfer_size;
c = musb->dma_controller;
channel = musb_ep->dma;
@@ -742,35 +743,30 @@ static void rxstate(struct musb *musb, struct musb_request *req)
csr | MUSB_RXCSR_DMAMODE);
musb_writew(epio, MUSB_RXCSR, csr);
+ transfer_size = min(request->length - request->actual,
+ channel->max_len);
+ musb_ep->dma->desired_mode = 1;
+
} else {
if (!musb_ep->hb_mult &&
musb_ep->hw_ep->rx_double_buffered)
csr |= MUSB_RXCSR_AUTOCLEAR;
csr |= MUSB_RXCSR_DMAENAB;
musb_writew(epio, MUSB_RXCSR, csr);
- }
- if (request->actual < request->length) {
- int transfer_size = 0;
- if (use_mode_1) {
- transfer_size = min(request->length - request->actual,
- channel->max_len);
- musb_ep->dma->desired_mode = 1;
- } else {
- transfer_size = min(request->length - request->actual,
+ transfer_size = min(request->length - request->actual,
(unsigned)fifo_count);
- musb_ep->dma->desired_mode = 0;
- }
-
- use_dma = c->channel_program(
- channel,
- musb_ep->packet_sz,
- channel->desired_mode,
- request->dma
- + request->actual,
- transfer_size);
+ musb_ep->dma->desired_mode = 0;
}
+ use_dma = c->channel_program(
+ channel,
+ musb_ep->packet_sz,
+ channel->desired_mode,
+ request->dma
+ + request->actual,
+ transfer_size);
+
if (use_dma)
return;
}
--
1.7.4.1
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