mailbox: zynqmp: Fix IPI isr handling

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commit 74ad37a30f upstream.

Multiple IPI channels are mapped to same interrupt handler.
Current isr implementation handles only one channel per isr.
Fix this behavior by checking isr status bit of all child
mailbox nodes.

Fixes: 4981b82ba2 ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: Tanmay Shah <tanmay.shah@amd.com>
Acked-by: Michal Simek <michal.simek@amd.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230311012407.1292118-3-tanmay.shah@amd.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Tanmay Shah 2023-03-10 17:24:05 -08:00 • committed by Greg Kroah-Hartman

parent 8cc1ab7de2

commit c051c472fb

1 changed files with 3 additions and 3 deletions

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drivers/mailbox/zynqmp-ipi-mailbox.c

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