remoteproc: qcom: q6v5: Make handover IRQ one-shot

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The handover interrupt is expected to be consumed once during each prepare
cycle. If the remote processor keeps signalling handover after the first
event, qcom_q6v5 currently logs the duplicate interrupt repeatedly while
leaving the IRQ enabled.

Track the handover IRQ enable state explicitly and route all handover IRQ
enable/disable operations through idempotent helpers. Request the handover
IRQ with IRQF_NO_AUTOEN so it is only enabled through the helper during
prepare. The handover handler disables it after marking handover as issued,
while unprepare disables and synchronizes it before checking whether
handover was issued.

Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260612-rproc-q6v5-handover-irq-one-shot-v1-1-bb688f4446b3@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

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Abel Vesa 2026-06-12 14:09:08 +03:00 • committed by Bjorn Andersson

parent 44f4911ab8

commit bb7c5d6f5b

2 changed files with 48 additions and 10 deletions

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54

drivers/remoteproc/qcom_q6v5.c

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4

drivers/remoteproc/qcom_q6v5.h

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