On Mon, Jul 06, 2026 at 05:37:17PM +0200, Stephan Gerhold wrote:
> On MDM9607, the modem firmware exposes the QMI subsystem control service
> with instance ID 0x22 (34), as visible e.g. with qrtr-lookup:
>
> $ qrtr-lookup
> Service Version Instance Node Port
> 43 2 34 3 1 Subsystem control service
>
> Currently, qcom_q6v5_mss uses ssctl_id 0x12 for all platforms. The QMI
> service never shows up with this ID, leading to the following error when
> trying to shutdown the modem:
>
> qcom-q6v5-mss 4080000.remoteproc: timeout waiting for ssctl service
>
> Set the correct ssctl_id to allow clean shutdown of the modem firmware with
> the subsystem control service. ssctl_id 0x22 is also used by other
> modem-only Qualcomm platforms in qcom_q6v5_pas, such as SDX55.
>
> Fixes: 4fe236a1d024 ("remoteproc: qcom_q6v5_mss: Add MDM9607")
> Signed-off-by: Stephan Gerhold <[email protected]>
Reviewed-by: Mukesh Ojha <[email protected]>
-Mukesh
