dmaengine: PL08x: get rid of unnecessary checks in dma_slave_config

Get rid of the unnecessary checks in dma_slave_config utilizing
the DMA direction.  This allows us to move the computation of
cctl to the prepare function.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/amba/pl08x.h b/include/linux/amba/pl08x.h
index 158ce2634b01..2a5f64a11b77 100644
--- a/include/linux/amba/pl08x.h
+++ b/include/linux/amba/pl08x.h
@@ -47,7 +47,8 @@ enum {
  * devices with static assignments
  * @muxval: a number usually used to poke into some mux regiser to
  * mux in the signal to this channel
- * @cctl_opt: default options for the channel control register
+ * @cctl_memcpy: options for the channel control register for memcpy
+ *  *** not used for slave channels ***
  * @addr: source/target address in physical memory for this DMA channel,
  * can be the address of a FIFO register for burst requests for example.
  * This can be left undefined if the PrimeCell API is used for configuring
@@ -62,7 +63,7 @@ struct pl08x_channel_data {
         int min_signal;
         int max_signal;
         u32 muxval;
-        u32 cctl;
+        u32 cctl_memcpy;
         dma_addr_t addr;
         bool single;
         u8 periph_buses;