diff options
| author | Carlos Song <[email protected]> | 2023-07-27 11:03:47 +0800 |
|---|---|---|
| committer | Andi Shyti <[email protected]> | 2023-08-08 15:36:47 +0200 |
| commit | 224acec66433ee36f58531d815e61498a407ac44 (patch) | |
| tree | c467acae51f3cdd936c353639f2d150579b52946 /drivers/platform/surface/aggregator/ssh_parser.c | |
| parent | 52a93d39b17dc7eb98b6aa3edb93943248e03b2f (diff) | |
i2c: imx-lpi2c: directly return ISR when detect a NACK
A NACK flag in ISR means i2c bus error. In such condition,
there is no need to do read/write operation.
In this patch, i2c will check MSR_NDF, MSR_RDF and MSR_TDF
flag in turn, it's making mutually exclusive NACK/read/write.
So when a NACK is received(MSR_NDF), i2c will return ISR
directly and then stop i2c transfer.
Signed-off-by: Carlos Song <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Andi Shyti <[email protected]>
Diffstat (limited to 'drivers/platform/surface/aggregator/ssh_parser.c')
0 files changed, 0 insertions, 0 deletions