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-rw-r--r--drivers/usb/musb/cppi_dma.c1
-rw-r--r--drivers/usb/musb/musb_gadget.c18
2 files changed, 10 insertions, 9 deletions
diff --git a/drivers/usb/musb/cppi_dma.c b/drivers/usb/musb/cppi_dma.c
index 59dc3d351b60..5ab5bb89bae3 100644
--- a/drivers/usb/musb/cppi_dma.c
+++ b/drivers/usb/musb/cppi_dma.c
@@ -322,6 +322,7 @@ cppi_channel_allocate(struct dma_controller *c,
index, transmit ? 'T' : 'R', cppi_ch);
cppi_ch->hw_ep = ep;
cppi_ch->channel.status = MUSB_DMA_STATUS_FREE;
+ cppi_ch->channel.max_len = 0x7fffffff;
DBG(4, "Allocate CPPI%d %cX\n", index, transmit ? 'T' : 'R');
return &cppi_ch->channel;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index fa826f9e262b..cacae96468b9 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -300,6 +300,11 @@ static void txstate(struct musb *musb, struct musb_request *req)
#ifndef CONFIG_MUSB_PIO_ONLY
if (is_dma_capable() && musb_ep->dma) {
struct dma_controller *c = musb->dma_controller;
+ size_t request_size;
+
+ /* setup DMA, then program endpoint CSR */
+ request_size = min_t(size_t, request->length - request->actual,
+ musb_ep->dma->max_len);
use_dma = (request->dma != DMA_ADDR_INVALID);
@@ -307,11 +312,6 @@ static void txstate(struct musb *musb, struct musb_request *req)
#ifdef CONFIG_USB_INVENTRA_DMA
{
- size_t request_size;
-
- /* setup DMA, then program endpoint CSR */
- request_size = min_t(size_t, request->length,
- musb_ep->dma->max_len);
if (request_size < musb_ep->packet_sz)
musb_ep->dma->desired_mode = 0;
else
@@ -373,8 +373,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
use_dma = use_dma && c->channel_program(
musb_ep->dma, musb_ep->packet_sz,
0,
- request->dma,
- request->length);
+ request->dma + request->actual,
+ request_size);
if (!use_dma) {
c->channel_release(musb_ep->dma);
musb_ep->dma = NULL;
@@ -386,8 +386,8 @@ static void txstate(struct musb *musb, struct musb_request *req)
use_dma = use_dma && c->channel_program(
musb_ep->dma, musb_ep->packet_sz,
request->zero,
- request->dma,
- request->length);
+ request->dma + request->actual,
+ request_size);
#endif
}
#endif
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