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08 September 2024, 02:26:05 UTC
Revision 915d0741e0c8e5fe406f8a8369745a73e2c681ef authored by Frank Li on 02 July 2024, 22:31:07 UTC, committed by Alexandre Belloni on 26 July 2024, 12:21:29 UTC 
i3c: master: svc: Improve DAA STOP handle code logic
 
The REQUEST_PROC_DAA command behaves differently from other commands.
Sometimes the hardware can auto emit STOP, but in other conditions, it
cannot.

Improves the code logic to better handle these situations.

Hardware can auto emit STOP only when the following conditions are met:
- The previous I3C device correctly returns a PID and ACKs an I3C address.
- A NACK is received when emitting 7E to try to get the next I3C device's
PID.

In all other cases, a manual STOP emission is needed.

The code is changed to emit STOP when break the while loop and 'return 0'
only when the hardware can auto emit STOP.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20240702223107.403057-1-Frank.Li@nxp.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
1 parent a0d48eb
History
Tip revision: 915d0741e0c8e5fe406f8a8369745a73e2c681ef authored by Frank Li on 02 July 2024, 22:31:07 UTC
i3c: master: svc: Improve DAA STOP handle code logic
Tip revision: 915d074
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