From: Peng Fan <peng.fan@nxp.com>
To: Sudeep Holla <sudeep.holla@arm.com>,
"Peng Fan (OSS)" <peng.fan@oss.nxp.com>
Cc: Cristian Marussi <cristian.marussi@arm.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Aisheng Dong <aisheng.dong@nxp.com>, Jacky Bai <ping.bai@nxp.com>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"imx@lists.linux.dev" <imx@lists.linux.dev>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>
Subject: RE: [PATCH v5 0/3] pinctrl: scmi: support i.MX95 OEM extensions
Date: Wed, 8 May 2024 09:41:24 +0000 [thread overview]
Message-ID: <DU0PR04MB94170BB9A2C41DE40C8F575288E52@DU0PR04MB9417.eurprd04.prod.outlook.com> (raw)
In-Reply-To: <ZjtCGXgwgtZ4X49v@bogus>
Hi Sudeep,
> Subject: Re: [PATCH v5 0/3] pinctrl: scmi: support i.MX95 OEM extensions
>
> On Wed, May 08, 2024 at 11:32:01AM +0800, Peng Fan (OSS) wrote:
> > ARM SCMI v3.2 Table 24 Pin Configuration Type and Enumerations:
> > '192 -255 OEM specific units'.
> >
> > i.MX95 System Manager FW supports SCMI PINCTRL protocol, but it has
> > zero functions, groups. So pinctrl-scmi.c could not be reused for i.MX95.
> > Because nxp,pin-func, nxp,pin-conf properties are rejected by dt
> > maintainers, so use generic property 'pinmux' which requires a new
> > driver pinctrl-imx-scmi.c
> >
>
> Not a review in particular, but if we decide to merge this deviation, it must be
> under the condition that it can be deleted anytime in the future if this
> becomes annoyance(like other vendors using this as a way to deviate from
> the specification). If we can't agree with that, then we better not merge this
> at all.
It is ok for me. I agree.
But actually this driver still follows Spec by using OEM extensions.
If in future, the spec adds something saying pinmux bit field, and pinctrl-scmi.c
supports it, we could drop the imx driver.
Thanks,
Peng.
>
> --
> Regards,
> Sudeep
next prev parent reply other threads:[~2024-05-08 9:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-05-08 3:32 [PATCH v5 0/3] pinctrl: scmi: support i.MX95 OEM extensions Peng Fan (OSS)
2024-05-08 3:32 ` [PATCH v5 1/3] dt-bindings: firmware: arm,scmi: Add properties for i.MX95 Pinctrl " Peng Fan (OSS)
2024-05-08 3:32 ` [PATCH v5 2/3] pinctrl: scmi: add blocklist Peng Fan (OSS)
2024-05-08 3:32 ` [PATCH v5 3/3] pinctrl: imx: support SCMI pinctrl protocol for i.MX95 Peng Fan (OSS)
2024-05-08 9:12 ` [PATCH v5 0/3] pinctrl: scmi: support i.MX95 OEM extensions Sudeep Holla
2024-05-08 9:41 ` Peng Fan [this message]
2024-05-08 12:22 ` Sudeep Holla
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