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authorConor Dooley <[email protected]>2023-03-07 20:22:52 +0000
committerConor Dooley <[email protected]>2023-04-03 18:25:46 +0000
commitb5984a9844fc45cd301a28fb56f3de95f7e20f3c (patch)
tree0a3ee10b0acdc8f37ee7b3a6daee563465e81653 /drivers/soc/microchip/mpfs-sys-controller.c
parentmailbox: mpfs: fix an incorrect mask width (diff)
downloadkernel-b5984a9844fc45cd301a28fb56f3de95f7e20f3c.tar.gz
kernel-b5984a9844fc45cd301a28fb56f3de95f7e20f3c.zip
mailbox: mpfs: switch to txdone_poll
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: 83d7b1560810 ("mbox: add polarfire soc system controller mailbox") Acked-by: Jassi Brar <[email protected]> Tested-by: Valentina Fernandez <[email protected]> Signed-off-by: Conor Dooley <[email protected]>
Diffstat (limited to 'drivers/soc/microchip/mpfs-sys-controller.c')
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