diff options
Diffstat (limited to 'drivers/usb/musb/musbhsdma.c')
-rw-r--r-- | drivers/usb/musb/musbhsdma.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c index 0144a2d481fd..d281792db05c 100644 --- a/drivers/usb/musb/musbhsdma.c +++ b/drivers/usb/musb/musbhsdma.c | |||
@@ -169,6 +169,14 @@ static int dma_channel_program(struct dma_channel *channel, | |||
169 | BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || | 169 | BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN || |
170 | channel->status == MUSB_DMA_STATUS_BUSY); | 170 | channel->status == MUSB_DMA_STATUS_BUSY); |
171 | 171 | ||
172 | /* Let targets check/tweak the arguments */ | ||
173 | if (musb->ops->adjust_channel_params) { | ||
174 | int ret = musb->ops->adjust_channel_params(channel, | ||
175 | packet_sz, &mode, &dma_addr, &len); | ||
176 | if (ret) | ||
177 | return ret; | ||
178 | } | ||
179 | |||
172 | /* | 180 | /* |
173 | * The DMA engine in RTL1.8 and above cannot handle | 181 | * The DMA engine in RTL1.8 and above cannot handle |
174 | * DMA addresses that are not aligned to a 4 byte boundary. | 182 | * DMA addresses that are not aligned to a 4 byte boundary. |