diff options
| author | Geert Uytterhoeven <[email protected]> | 2014-07-09 12:26:23 +0200 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2014-07-16 22:41:51 +0100 |
| commit | 279d2378c9c4f05bbe41b55625b4003871026266 (patch) | |
| tree | c07d111eb25b18e62addcd98e311013c8c0e486b /net/lapb/lapb_subr.c | |
| parent | 51fd509046f71471e606f3fd76411d238c3b5d39 (diff) | |
spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefully
As typically a shmobile SoC has less DMA channels than devices that can use
DMA, we may want to prioritize access to the DMA channels in the future.
This means that dmaengine_prep_slave_single() may start failing
arbitrarily.
Handle dmaengine_prep_slave_single() failures gracefully by falling back to
PIO. This requires moving DMA-specific configuration of the MSIOF device
after the call(s) to dmaengine_prep_slave_single().
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Laurent Pinchart <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'net/lapb/lapb_subr.c')
0 files changed, 0 insertions, 0 deletions