On Thu, Dec 4, 2025 at 2:29 PM Iuliana Prodan (OSS) <[email protected]> wrote: > > From: Iuliana Prodan <[email protected]> > > Firmwares that do not use mailbox communication (e.g., the hello_world > sample) leave priv->tx_ch as NULL. The current suspend logic > unconditionally sends RP_MBOX_SUSPEND_SYSTEM, which is invalid without > an initialized TX channel. > > Detect the no_mailboxes case early and skip sending the suspend > message. Instead, proceed directly to the runtime PM suspend path, > which is the correct behavior for firmwares that cannot respond to > mailbox requests. > > Signed-off-by: Iuliana Prodan <[email protected]>
Reviewed-by: Daniel Baluta <[email protected]>
