On Fri, Jul 19, 2024 at 11:40 AM Peng Fan (OSS) <peng.fan@xxxxxxxxxxx> wrote: > > The i.MX7ULP Cortex-A7 is under control of Cortex-M4. The i.MX7ULP Linux > poweroff and restart rely on rpmsg driver to send a message to Cortex-M4 > firmware. Then Cortex-A7 could poweroff or restart by Cortex-M4 to > configure the i.MX7ULP power controller properly. > > However the reboot and restart kernel common code use atomic notifier, > so with blocking tx mailbox will trigger kernel dump, because of > blocking mailbox will use wait_for_completion_timeout. In such case, > linux no need to wait for completion. > > patch 1 is to support non-blocking tx mailbox channel > patch 2 is to switch to non-blocking tx for system poweroff or restart. > > Based on patchset: > https://lore.kernel.org/all/20240719-imx_rproc-v2-0-10d0268c7eb1@xxxxxxx/ > > Signed-off-by: Peng Fan <peng.fan@xxxxxxx> Series looks good to me. Reviewed-by: Daniel Baluta <daniel.baluta@xxxxxxx>
