usb: musb: remove adjust_channel_params() callback from musb_platform_ops

Now Blackfin support is removed, nobody uses adjust_channel_params() any
more, so remove it from struct musb_platform_ops.

Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/musb/musb_core.h

@@ -138,7 +138,6 @@ struct musb_io;
  * @recover:	platform-specific babble recovery
  * @vbus_status: returns vbus status if possible
  * @set_vbus:	forces vbus status
- * @adjust_channel_params: pre check for standard dma channel_program func
  * @pre_root_reset_end: called before the root usb port reset flag gets cleared
  * @post_root_reset_end: called after the root usb port reset flag gets cleared
  * @phy_callback: optional callback function for the phy to call
@@ -184,9 +183,6 @@ struct musb_platform_ops {
 	int	(*vbus_status)(struct musb *musb);
 	void	(*set_vbus)(struct musb *musb, int on);
 
-	int	(*adjust_channel_params)(struct dma_channel *channel,
-				u16 packet_sz, u8 *mode,
-				dma_addr_t *dma_addr, u32 *len);
 	void	(*pre_root_reset_end)(struct musb *musb);
 	void	(*post_root_reset_end)(struct musb *musb);
 	int	(*phy_callback)(enum musb_vbus_id_status status);

drivers/usb/musb/musbhsdma.c

@@ -199,14 +199,6 @@ 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.