linux-kernel - Re: [PATCH v5 0/4] firmware: arm_scmi: Add SCMI v3.2 pincontrol protocol basic support

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Date: Sun, 17 Mar 2024 19:08:25 +0000
From: Cristian Marussi <cristian.marussi@....com>
To: Dan Carpenter <dan.carpenter@...aro.org>
Cc: Peng Fan <peng.fan@....com>, "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>,
	Linus Walleij <linus.walleij@...aro.org>,
	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>,
	Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v5 0/4] firmware: arm_scmi: Add SCMI v3.2 pincontrol
 protocol basic support

On Fri, Mar 15, 2024 at 09:20:02PM +0300, Dan Carpenter wrote:
> On Fri, Mar 15, 2024 at 04:53:10PM +0000, Cristian Marussi wrote:
> > On Fri, Mar 15, 2024 at 12:31:51AM +0000, Peng Fan wrote:
> > (and whatever you use to test on the backend server too, if you want
> > to test this...)
> > 
> 
> What are people using to test this, btw?

Hi Dan,

I think NXP has their own SCMI server embedded in TF-A (Peng posted a
link at the public repo a while ago I think...) supporting Pinctrl;
additionally Oleksii/EPAM (the original author of this series) have their
own distinct proprietary SCMI server implementation with Pinctrl (not sure
where it run from in this case but it is a Xen based setup if I remember
right..).

Beside these, there are at least a couple more Vendor proprietary incarnations
of SCMI servers that I am aware of (that most probably did not support Pinctrl
anyway as of now...)

On top of this, on the other side there is, of course, the official SCP/SCMI
server reference implementation, that can live in a number of different places
thanks to the the virtualized environment built by Linaro, but this latter
SCP/SCMI server does not have any official Pinctrl support either as of now.

Thanks,
Cristian