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.

Arnaud Pouliquen committed 4 years ago

Commit cfcabbb1 parent ba635861 file · +1 −1Browse files

Unified · Split

drivers/remoteproc/stm32_rproc.c+1−1

@@ -494,7 +494,7 @@ static int stm32_rproc_stop(struct rproc *rproc) · 493 unmodified lines
494	int err, idx;	494	int err, idx;
495		495
496	/* request shutdown of the remote processor */	496	/* request shutdown of the remote processor */
497	if (rproc->state != RPROC_OFFLINE) {	497	if (rproc->state != RPROC_OFFLINE && rproc->state != RPROC_CRASHED) {
498	idx = stm32_rproc_mbox_idx(rproc, STM32_MBX_SHUTDOWN);	498	idx = stm32_rproc_mbox_idx(rproc, STM32_MBX_SHUTDOWN);
499	if (idx >= 0 && ddata->mb[idx].chan) {	499	if (idx >= 0 && ddata->mb[idx].chan) {
500	err = mbox_send_message(ddata->mb[idx].chan, "detach");	500	err = mbox_send_message(ddata->mb[idx].chan, "detach");