On Tue, Oct 30, 2018 at 02:09:11PM -0700, Jae Hyun Yoo wrote: > In multi-master environment, this driver's master cannot know > exactly when a peer master sends data to this driver's slave so a > case can be happened that this master tries to send data through > the master_xfer function but slave data from peer master is still > being processed by this driver. To prevent state corruption in the > case, this patch adds checking code if any slave operation is > ongoing and it waits up to the bus timeout duration before starting > a master_xfer operation. > > To support this change, it introduces changes on i2c-core-base to > make that able to read the bus timeout and master transfer retries > count values from device tree properties. > > Please review this patch set. Marking this as "Changes requested". I think if the mutex approach works, these patches become obsolete then.
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