mailbox: mpfs: switch to txdone_poll

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The system controller on PolarFire SoC has no interrupt to signify that
the TX has been completed. The interrupt instead signals that a service
requested by the mailbox client has succeeded. If a service fails, there
will be no interrupt delivered.

Switch to polling the busy register to determine whether transmission
has completed.

Fixes: 83d7b15608 ("mbox: add polarfire soc system controller mailbox")
Acked-by: Jassi Brar <jaswinder.singh@linaro.org>
Tested-by: Valentina Fernandez <valentina.fernandezalanis@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>

...

This commit is contained in:

Conor Dooley 2023-03-07 20:22:52 +00:00

parent 75dfbcbfd7

commit b5984a9844

1 changed files with 10 additions and 2 deletions

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drivers/mailbox/mailbox-mpfs.c

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