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mailbox: zynqmp: Fix IPI isr handling
Tanmay Shah authored
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: 4981b82b

 ("mailbox: ZynqMP IPI mailbox controller")
Signed-off-by: default avatarTanmay Shah <tanmay.shah@amd.com>
Acked-by: default avatarMichal 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: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
74ad37a3
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