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path: root/drivers/usb/musb/musbhsdma.c
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Diffstat (limited to 'drivers/usb/musb/musbhsdma.c')
-rw-r--r--drivers/usb/musb/musbhsdma.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 0144a2d..d281792 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,
BUG_ON(channel->status == MUSB_DMA_STATUS_UNKNOWN ||
channel->status == MUSB_DMA_STATUS_BUSY);
+ /* Let targets check/tweak the arguments */
+ if (musb->ops->adjust_channel_params) {
+ int ret = musb->ops->adjust_channel_params(channel,
+ packet_sz, &mode, &dma_addr, &len);
+ if (ret)
+ return ret;
+ }
+
/*
* The DMA engine in RTL1.8 and above cannot handle
* DMA addresses that are not aligned to a 4 byte boundary.