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ARM: PL08x: move ccfg into txd structure

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The ccfg register is used to configure the channel parameters - the type
and direction of transfer, the flow control signal and IRQ mask enables.
The type and direction of transfer is known in the relevent prep_*
function where a txd is created.  The IRQ mask enables are always set,
and the flow control signals are always set when we start processing a
txd according to phychan->signal.

If we store the ccfg value in the txd structure, we can avoid modifying
platform data - and even having it in platform data at all.

So, remove it from platform data too.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Russell King - ARM Linux 2011-01-03 22:39:33 +00:00 • committed by Dan Williams
parent 19524d77ec
commit 4983a04fd2
2 changed files with 17 additions and 17 deletions
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6
include/linux/amba/pl08x.h
View file

@ -58,7 +58,6 @@ struct pl08x_channel_data {
int max_signal;
u32 muxval;
u32 cctl;
u32 ccfg;
dma_addr_t addr;
bool circular_buffer;
bool single;
@ -113,6 +112,11 @@ struct pl08x_txd {
void *llis_va;
struct pl08x_channel_data *cd;
bool active;
/*
* Settings to be put into the physical channel when we
* trigger this txd. Other registers are in llis_va[0].
*/
u32 ccfg;
};
/**