diff options
| author | Hector Martin <[email protected]> | 2023-10-29 18:07:04 +0100 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2023-11-24 18:57:56 +0530 |
| commit | 306f5df81fcc89b462fbeb9dbe26d9a8ad7c7582 (patch) | |
| tree | 6e44c1ca78926c92585b0d47193fbf346c3b8b83 /lib/netdev-notifier-error-inject.c | |
| parent | 375ff42c4c9825c19a53b9095ae4b3337cc83442 (diff) | |
dmaengine: apple-admac: Keep upper bits of REG_BUS_WIDTH
For RX channels, REG_BUS_WIDTH seems to default to a value of 0xf00, and
macOS preserves the upper bits when setting the configuration in the
lower ones. If we reset the upper bits to 0, this causes framing errors
on suspend/resume (the data stream "tears" and channels get swapped
around). Keeping the upper bits untouched, like the macOS driver does,
fixes this issue.
Signed-off-by: Hector Martin <[email protected]>
Reviewed-by: Martin Povišer <[email protected]>
Signed-off-by: Martin Povišer <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Diffstat (limited to 'lib/netdev-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions