linux-kernel - Re: [PATCH v4 3/4] firmware: arm_scmi: Add SCMI v3.2 pincontrol protocol basic support

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Date: Fri, 23 Feb 2024 08:33:55 +0000
From: Cristian Marussi <cristian.marussi@....com>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: "Peng Fan (OSS)" <peng.fan@....nxp.com>,
	Sudeep Holla <sudeep.holla@....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>,
	NXP Linux Team <linux-imx@....com>,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org, linux-gpio@...r.kernel.org,
	AKASHI Takahiro <takahiro.akashi@...aro.org>,
	Peng Fan <peng.fan@....com>
Subject: Re: [PATCH v4 3/4] firmware: arm_scmi: Add SCMI v3.2 pincontrol
 protocol basic support

On Fri, Feb 23, 2024 at 09:28:12AM +0100, Linus Walleij wrote:
> On Fri, Feb 23, 2024 at 2:08 AM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:
> 
> > From: Oleksii Moisieiev <oleksii_moisieiev@...m.com>
> >
> > Add basic implementation of the SCMI v3.2 pincontrol protocol.
> >
> > Reviewed-by: Cristian Marussi <cristian.marussi@....com>
> > Tested-by: Cristian Marussi <cristian.marussi@....com>
> > Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> > Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev@...m.com>
> > Co-developed-by: Peng Fan <peng.fan@....com>
> > Signed-off-by: Peng Fan <peng.fan@....com>
> 
> This looks ripe for merging for me, there are clearly dependencies in the SCMI
> firmware tree so I can't apply this to the pin control tree, but if
> someone creates
> an immutable branch from the SCMI firmware repo (based off v6.8-rc1 or so)
> I'm happy to also pull the branch into pin control.
> 

Well, AFAIK there is another upcoming change in the v3.2 SCMI spec and
I am not sure if this series accounts for it...indeed the v3.2 -bet4 was
still pending fr feedback AFAIK (and I doubt latest changes are in since
they have been discussed like yesterday...)....but I maybe wrong, I will
chase for the final spec and look into this to verify if it is
compliant...

Anyway, given the particularly long history of changes in PINCTRL v3.2
SCMI I would wait to have the final spec officially frozen at this
point before merging....

Thanks,
Cristian