Re: [PATCH v13 0/4] Enable Remote GPIO over RPMSG on i.MX Platform

[Shenwei Wang]

> -----Original Message-----
> From: Andrew Lunn <andrew@xxxxxxx>
> Sent: Thursday, April 23, 2026 8:54 AM
> To: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> Cc: Shenwei Wang <shenwei.wang@xxxxxxx>; Linus Walleij
> <linusw@xxxxxxxxxx>; Bartosz Golaszewski <brgl@xxxxxxxxxx>; Jonathan Corbet
> <corbet@xxxxxxx>; Rob Herring <robh@xxxxxxxxxx>; Krzysztof Kozlowski
> <krzk+dt@xxxxxxxxxx>; Conor Dooley <conor+dt@xxxxxxxxxx>; Bjorn Andersson
> <andersson@xxxxxxxxxx>; Frank Li <frank.li@xxxxxxx>; Sascha Hauer
> <s.hauer@xxxxxxxxxxxxxx>; Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>; linux-
> gpio@xxxxxxxxxxxxxxx; linux-doc@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>; Fabio Estevam
> <festevam@xxxxxxxxx>; Peng Fan <peng.fan@xxxxxxx>;
> devicetree@xxxxxxxxxxxxxxx; linux-remoteproc@xxxxxxxxxxxxxxx;
> imx@xxxxxxxxxxxxxxx; linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; dl-linux-imx <linux-
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> Subject: [EXT] Re: [PATCH v13 0/4] Enable Remote GPIO over RPMSG on i.MX
> Platform
> 
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> On Thu, Apr 23, 2026 at 06:53:12AM -0600, Mathieu Poirier wrote:
> > Once again Andrew Lunn was left out.
> >
> > On Wed, 22 Apr 2026 at 15:29, Shenwei Wang <shenwei.wang@xxxxxxx>
> wrote:
> > >
> > > Support the remote devices on the remote processor via the RPMSG bus
> > > on i.MX platform.
> > >
> > > Changes in v13:
> > >  - drop the support for legacy NXP firmware.
> > >  - remove the fixed_up hooks from the rpmsg gpio driver.
> > >  - code cleanup.
> 
> That looks like a step forward. Now we don't care about legacy NXP firmware, it
> makes it easier to make bigger changes, like use the messages format from gpio-
> virtio.
> 

The implementation adopts the gpio‑virtio design, including its commands, parameters, and error codes.

Shenwei

>          Andrew