linux-kernel - Re: [PATCH 0/4] scmi: Bypass set fwnode to address devlink issue

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Message-ID: <CACRpkdZFQDiLax1QtPDr5zWbhAqwWuXdC=+VtBLD-S2c1FLpAg@mail.gmail.com>
Date: Fri, 27 Dec 2024 18:06:24 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Saravana Kannan <saravanak@...gle.com>
Cc: Sudeep Holla <sudeep.holla@....com>, Cristian Marussi <cristian.marussi@....com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Dong Aisheng <aisheng.dong@....com>, 
	Fabio Estevam <festevam@...il.com>, Shawn Guo <shawnguo@...nel.org>, Jacky Bai <ping.bai@....com>, 
	Pengutronix Kernel Team <kernel@...gutronix.de>, Sascha Hauer <s.hauer@...gutronix.de>, arm-scmi@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	linux-gpio@...r.kernel.org, imx@...ts.linux.dev, Peng Fan <peng.fan@....com>
Subject: Re: [PATCH 0/4] scmi: Bypass set fwnode to address devlink issue

On Wed, Dec 25, 2024 at 9:21 AM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:

> Current scmi drivers not work well with devlink. This patchset is a
> retry to address the issue in [1] which was a few months ago.
>
> Current scmi devices are not created from device tree, they are created
> from a scmi_device_id entry of each driver with the protocol matches
> with the fwnode reg value, this means there could be multiple devices created
> for one fwnode, but the fwnode only has one device pointer.
>
> This patchset is to do more checking before setting the device fwnode.
>
> This may looks like hack, but seems no better way to make scmi works
> well with devlink.
>
> [1]: https://lore.kernel.org/arm-scmi/CAGETcx8m48cy-EzP6_uoGN7KWsQw=CfZWQ-hNUzz_7LZ0voG8A@mail.gmail.com/

Please drive any devlink-related patches by Saravana Kannan, he's pretty
much the only person I trust to know how to do devlinks right.

Yours,
Linus Walleij