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| author | Anatolij Gustschin <agust@denx.de> | 2012-08-29 23:33:28 +0200 |
|---|---|---|
| committer | Anatolij Gustschin <agust@denx.de> | 2012-09-14 10:15:35 +0200 |
| commit | 9d9fd8871b4136755160bf95a9abd0d23d738ddc (patch) | |
| tree | 9eda535f9a3aea4ed39290ff1fb611035d3b9a7e /arch/powerpc/include/asm/mpc52xx.h | |
| parent | dt/misc: add bindings documentation for ifm camera sensor interface (diff) | |
| download | linux-9d9fd8871b4136755160bf95a9abd0d23d738ddc.tar.xz linux-9d9fd8871b4136755160bf95a9abd0d23d738ddc.zip | |
powerpc/mpc52xx_lpbfifo: optionally defer fifo transfer start
Currently fifo transfer is started when submitting a transfer
request. Add posibility to defer the fifo transfer and start it
later by calling additional function. This change is backward
compatible, the behaviour of mpc52xx_lpbfifo_submit() is the same
for previous driver users, so there is no need to adapt them.
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Diffstat (limited to 'arch/powerpc/include/asm/mpc52xx.h')
| -rw-r--r-- | arch/powerpc/include/asm/mpc52xx.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/mpc52xx.h b/arch/powerpc/include/asm/mpc52xx.h index 1f41382eda38..0acc7c7c28d1 100644 --- a/arch/powerpc/include/asm/mpc52xx.h +++ b/arch/powerpc/include/asm/mpc52xx.h @@ -307,6 +307,7 @@ struct mpc52xx_lpbfifo_request { size_t size; size_t pos; /* current position of transfer */ int flags; + int defer_xfer_start; /* What to do when finished */ void (*callback)(struct mpc52xx_lpbfifo_request *); @@ -323,6 +324,7 @@ struct mpc52xx_lpbfifo_request { extern int mpc52xx_lpbfifo_submit(struct mpc52xx_lpbfifo_request *req); extern void mpc52xx_lpbfifo_abort(struct mpc52xx_lpbfifo_request *req); extern void mpc52xx_lpbfifo_poll(void); +extern int mpc52xx_lpbfifo_start_xfer(struct mpc52xx_lpbfifo_request *req); /* mpc52xx_pic.c */ extern void mpc52xx_init_irq(void); |