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| author | Vignesh Raghavendra <[email protected]> | 2020-06-01 12:34:41 +0530 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2020-06-19 14:26:51 +0100 |
| commit | 935da5e5100f57d843cac4781b21f1c235059aa0 (patch) | |
| tree | 90bdaeef5d56b8d7c518aaebc3c3f9b4954c3cbb /tools/perf/scripts/python/Perf-Trace-Util/lib | |
| parent | c61088d1f9932940af780b674f028140eda09a94 (diff) | |
mtd: spi-nor: cadence-quadspi: Handle probe deferral while requesting DMA channel
dma_request_chan_by_mask() can throw EPROBE_DEFER if DMA provider
is not yet probed. Currently driver just falls back to using PIO mode
(which is less efficient) in this case. Instead return probe deferral
error as is so that driver will be re probed once DMA provider is
available.
Signed-off-by: Vignesh Raghavendra <[email protected]>
Reviewed-by: Tudor Ambarus <[email protected]>
Acked-by: Tudor Ambarus <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib')
0 files changed, 0 insertions, 0 deletions