linux-kernel - Re: [PATCH NOT APPLY v3 6/6] pinctrl: scmi: implement pinctrl_scmi_imx_dt_node_to

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Date: Sun, 28 Jan 2024 01:43:39 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Peng Fan <peng.fan@....com>
Cc: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Sudeep Holla <sudeep.holla@....com>, 
	Cristian Marussi <cristian.marussi@....com>, Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Oleksii Moisieiev <oleksii_moisieiev@...m.com>, Shawn Guo <shawnguo@...nel.org>, 
	Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
	Fabio Estevam <festevam@...il.com>, dl-linux-imx <linux-imx@....com>, 
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, 
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, 
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>, 
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, AKASHI Takahiro <takahiro.akashi@...aro.org>
Subject: Re: [PATCH NOT APPLY v3 6/6] pinctrl: scmi: implement pinctrl_scmi_imx_dt_node_to_map

On Sun, Jan 28, 2024 at 1:32 AM Peng Fan <peng.fan@....com> wrote:
> > Subject: Re: [PATCH NOT APPLY v3 6/6] pinctrl: scmi: implement
> > On Sun, Jan 21, 2024 at 11:18 AM Peng Fan (OSS) <peng.fan@....nxp.com>
> > wrote:
> >
> > > -obj-$(CONFIG_PINCTRL_SCMI)     += pinctrl-scmi.o
> > > +obj-$(CONFIG_PINCTRL_SCMI)     += pinctrl-scmi.o pinctrl-scmi-imx.o
> >
> > I think you should probably create a sub-Kconfig option for this file.
>
> Yeah, good suggestion.
>
> But as of now, the major issue is Cristian is not happy with adding
> a vendor compatible for scmi pinctrl when vendor has its own pinconf map.
> So we are stuck on how to support i.MX95 SCMI pinctrl.

I see.

> Previously Cristian suggested build exclusive for generic scmi pinctrl and
> i.MX scmi pinctrl, but this means arm64 generic defconfig will not able
> to include both configs.
>
> Do you have any suggestions?

This is not a technical problem, I think it is more of a policy problem
and I can just say what works with pinctrl, the others know better than
me what is best for SCMI in general and how SCMI drivers should
be designed.

Yours,
Linus Walleij