pussuw opened a new pull request, #15819: URL: https://github.com/apache/nuttx/pull/15819
## Summary This removes several error conditions that can be present after a failed i2c transaction. The most important of them is the priv->sem_isr semaphore which can be signaled due to a race condition. This also ensures the i2c device itself is in idle state before futzing around with it. Also, add a comment about the SI-flag in the I2C CTRL register; it has a hidden dual meaning. Not only does it clear a pending interrupt, it also moves the I2C IP state machine forward. This requires extra logic in the driver to cope. The second patch increases the transfer timeout margin, to account for system internal latencies (mainly interrupt latencies). ## Impact Impact is the MPFS platform's i2c driver only. No other targets are affected. ## Testing Tested with a downstream MPFS target with multiple i2c buses, which contain multiple i2c devices. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
