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dmaengine: PL08x: get rid of unnecessary checks in dma_slave_config

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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>
This commit is contained in:
Russell King
2012-05-16 12:20:55 +01:00
parent 800d683e6b
commit dc8d5f8de1
7 changed files with 20 additions and 158 deletions
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include/linux/amba/pl08x.h
+3 -2
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@@ -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;