remoteproc: stm32_rproc: Fix mailbox interrupts queuing

commit c3281abea67c9c0dc6219bbc41d1feae05a16da3 upstream.

Manage interrupt coming from coprocessor also when state is
ATTACHED.

Fixes: 35bdafda40cc ("remoteproc: stm32_rproc: Add mutex protection for workqueue")
Cc: stable@vger.kernel.org
Signed-off-by: Gwenael Treuveur <gwenael.treuveur@foss.st.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20240521162316.156259-1-gwenael.treuveur@foss.st.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/remoteproc/stm32_rproc.c b/drivers/remoteproc/stm32_rproc.c
index 88623df7d0c35a0ab1971befbe076721f2316822..8c7f7950b80eee53e05045576382eac7a5f0dbe6 100644 (file)
--- a/drivers/remoteproc/stm32_rproc.c
+++ b/drivers/remoteproc/stm32_rproc.c
@@ -294,7 +294,7 @@ static void stm32_rproc_mb_vq_work(struct work_struct *work)
 
        mutex_lock(&rproc->lock);
 
-       if (rproc->state != RPROC_RUNNING)
+       if (rproc->state != RPROC_RUNNING && rproc->state != RPROC_ATTACHED)
                goto unlock_mutex;
 
        if (rproc_vq_interrupt(rproc, mb->vq_id) == IRQ_NONE)