On Thu, Oct 09, 2025 at 05:27:15PM -0500, Shenwei Wang wrote:
> On i.MX SoCs, the system may include two processors:
> - An MCU running an RTOS
> - An MPU running Linux
>
> These processors communicate via the RPMSG protocol.
> The driver implements the standard GPIO interface, allowing
> the Linux side to control GPIO controllers which reside in
> the remote processor via RPMSG protocol.
I've not seen the discussion on earlier versions of this patchset, so
i might be asking something already asked and answered. Sorry if i am.
Is there anything IMX specific in here? This appears to be the first
RPMSG GPIO driver. Do we have the opportunity here to define a
protocol for all future RPMSG GPIO drivers, which any/all vendors
should follow, so we don't have lots of different implementations of
basically they same thing? So this would become gpio-rpmsg.c and a
Document somewhere describing the protocol?
Andrew
