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remoteproc: stm32: Improve crash recovery time

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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: Arnaud Pouliquen <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mathieu Poirier <[email protected]>
This commit is contained in:
Arnaud Pouliquen authored and Mathieu Poirier committed 2022-01-03 11:40:45 -07:00
1 parent ba63586377
commit cfcabbb24d
1 file changed
+1 -1
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drivers/remoteproc/stm32_rproc.c
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@@ -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");