Hi Shenwei,
On 11/5/25 15:12, Shenwei Wang wrote:
Hi Arnaud,
-----Original Message-----
From: Arnaud POULIQUEN <[email protected]>
Sent: Wednesday, November 5, 2025 4:26 AM
To: Peng Fan <[email protected]>; Shenwei Wang <[email protected]>;
Bjorn Andersson <[email protected]>; Mathieu Poirier
<[email protected]>; Rob Herring <[email protected]>; Krzysztof
Kozlowski <[email protected]>; Conor Dooley <[email protected]>; Shawn
Guo <[email protected]>; Sascha Hauer <[email protected]>;
Jonathan Corbet <[email protected]>; Linus Walleij <[email protected]>;
Bartosz Golaszewski <[email protected]>
Cc: Pengutronix Kernel Team <[email protected]>; Fabio Estevam
<[email protected]>; [email protected];
[email protected]; [email protected]; linux-arm-
[email protected]; [email protected]; linux-
[email protected]; dl-linux-imx <[email protected]>; Randy Dunlap
<[email protected]>; Andrew Lunn <[email protected]>; linux-
[email protected]
Subject: [EXT] Re: [PATCH v5 0/5] Enable Remote GPIO over RPMSG on i.MX
Platform
Hi,
On 11/5/25 02:12, Peng Fan wrote:
Hi Shenwei
Subject: [PATCH v5 0/5] Enable Remote GPIO over RPMSG on i.MX
Platform
Support the remote devices on the remote processor via the RPMSG bus
on i.MX platform.
I have not look into the details of new version, but before that, just
want to check, have we agreed on what Arnaud suggested?
or continue to proceed to be this as i.MX specific?
Thanks, Peng, for pointing this out. Regarding the V3 discussions, it seems
that I
am not the only one suggesting a generic driver.
As I mentioned before, the only i.MX-specific part is the transport protocol
over the RPMSG bus.
In this v5 patches, we’ve included detailed documentation for the protocol in a
separate file. Any
platform that follows the same protocol should work right out of the box.
If you spot anything that could be improved, please let me know!
My concerns remain the same as those shared previously:
1) The simpler one: gpio-imx-rpmsg.c should be renamed to gpio-rpmsg.c.
2) The more complex one: the driver should be independent of the
remoteproc driver. The rpmsg protocol relies on virtio and can be used
in contexts other than remoteproc. In other words, the struct
rpmsg_driver and its associated operations should be defined within the
rpmsg-gpio driver, not in the remoteproc driver.
Thanks,
Arnaud
Thanks,
Shenwei
Thanks,
Arnaud
Thanks
Peng.
