Commit cfcabbb2 authored by Arnaud Pouliquen's avatar Arnaud Pouliquen Committed by Mathieu Poirier
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remoteproc: stm32: Improve crash recovery time 



When a stop is requested on a crash, it is useless to try to shutdown it
gracefully, it is crashed.

In this case don't send the STM32_MBX_SHUTDOWN mailbox message that
will block the recovery during 500 ms, waiting an answer from the
coprocessor.

Signed-off-by: default avatarArnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20211221143129.18415-1-arnaud.pouliquen@foss.st.com


Signed-off-by: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
parent ba635863

drivers/remoteproc/stm32_rproc.c

+1 −1
Original line number Diff line number Diff line
@@ -494,7 +494,7 @@ static int stm32_rproc_stop(struct rproc *rproc) 
	int err, idx;



	/* request shutdown of the remote processor */

	if (rproc->state != RPROC_OFFLINE) {

	if (rproc->state != RPROC_OFFLINE && rproc->state != RPROC_CRASHED) {

		idx = stm32_rproc_mbox_idx(rproc, STM32_MBX_SHUTDOWN);

		if (idx >= 0 && ddata->mb[idx].chan) {

			err = mbox_send_message(ddata->mb[idx].chan, "detach");