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media: stm32: dcmipp: bytecap: clear all interrupts upon stream stop

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Ensure that there are no pending interrupts after we have stopped the
pipeline. Indeed, it could happen that new interrupt has been generated
during the stop_streaming processing hence clear them in order to avoid
getting a new interrupt right from the start of a next start_streaming.

Fixes: 28e0f37722 ("media: stm32-dcmipp: STM32 DCMIPP camera interface driver")
Cc: stable@vger.kernel.org
Signed-off-by: Alain Volmat <alain.volmat@foss.st.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
This commit is contained in:
Alain Volmat 2025-12-19 15:30:35 +01:00 committed by Hans Verkuil
parent 5152437f76
commit 222f1279ed
1 changed files with 3 additions and 0 deletions
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3
drivers/media/platform/st/stm32/stm32-dcmipp/dcmipp-bytecap.c
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@ -512,6 +512,9 @@ static void dcmipp_bytecap_stop_streaming(struct vb2_queue *vq)
/* Disable pipe */
reg_clear(vcap, DCMIPP_P0FSCR, DCMIPP_P0FSCR_PIPEN);
/* Clear any pending interrupts */
reg_write(vcap, DCMIPP_CMFCR, DCMIPP_CMIER_P0ALL);
spin_lock_irq(&vcap->irqlock);
/* Return all queued buffers to vb2 in ERROR state */