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

[Shenwei Wang]

> -----Original Message-----
> From: Andrew Lunn <andrew at lunn.ch>
> Sent: Thursday, April 23, 2026 8:54 AM
> To: Mathieu Poirier <mathieu.poirier at linaro.org>
> Cc: Shenwei Wang <shenwei.wang at nxp.com>; Linus Walleij
> <linusw at kernel.org>; Bartosz Golaszewski <brgl at kernel.org>; Jonathan Corbet
> <corbet at lwn.net>; Rob Herring <robh at kernel.org>; Krzysztof Kozlowski
> <krzk+dt at kernel.org>; Conor Dooley <conor+dt at kernel.org>; Bjorn Andersson
> <andersson at kernel.org>; Frank Li <frank.li at nxp.com>; Sascha Hauer
> <s.hauer at pengutronix.de>; Shuah Khan <skhan at linuxfoundation.org>; linux-
> gpio at vger.kernel.org; linux-doc at vger.kernel.org; linux-kernel at vger.kernel.org;
> Pengutronix Kernel Team <kernel at pengutronix.de>; Fabio Estevam
> <festevam at gmail.com>; Peng Fan <peng.fan at nxp.com>;
> devicetree at vger.kernel.org; linux-remoteproc at vger.kernel.org;
> imx at lists.linux.dev; linux-arm-kernel at lists.infradead.org; dl-linux-imx <linux-
> imx at nxp.com>
> 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 at nxp.com>
> 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