diff options
| author | Quan Nguyen <quan@os.amperecomputing.com> | 2022-09-15 06:54:40 +0300 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2022-09-28 22:41:59 +0300 |
| commit | 09a7bab68b22ff862766d6ec543fdbaf126cd688 (patch) | |
| tree | c86046a19b39c9c1cb4ac7d72e27fcd8a982da28 /drivers/i2c/busses | |
| parent | be18c5ede25da39a0eda541f6de3620a30cf731f (diff) | |
| download | linux-09a7bab68b22ff862766d6ec543fdbaf126cd688.tar.xz | |
docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED
In case backend is not ready, ie: fail to wakeup or initialization, on
the returning of the I2C_SLAVE_WRITE_REQUESTED event, bus driver should
aware the backend status and might auto sending NACK on the next
incoming bytes for I2C master to retry.
Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com>
Links:https://lore.kernel.org/linux-arm-kernel/556fa9e1-c54b-8370-4de7-c2d3ec7d6906@os.amperecomputing.com/
[wsa: made some wording more precise]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'drivers/i2c/busses')
0 files changed, 0 insertions, 0 deletions