linux-kernel - RE: [PATCH 0/3] pinctrl: scmi: support i.MX95 OEM extensions with fsl,pins property

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Date: Fri, 31 May 2024 08:45:24 +0000
From: Aisheng Dong <aisheng.dong@....com>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>, Sudeep Holla
	<sudeep.holla@....com>, Cristian Marussi <cristian.marussi@....com>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
 Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
	<s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Linus Walleij <linus.walleij@...aro.org>,
	Jacky Bai <ping.bai@....com>
CC: "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "devicetree@...r.kernel.org"
	<devicetree@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "imx@...ts.linux.dev" <imx@...ts.linux.dev>,
	"linux-gpio@...r.kernel.org" <linux-gpio@...r.kernel.org>, Peng Fan
	<peng.fan@....com>
Subject: RE: [PATCH 0/3] pinctrl: scmi: support i.MX95 OEM extensions with
 fsl,pins property

> From: Peng Fan (OSS) <peng.fan@....nxp.com>
> Sent: 2024年5月21日 14:26
> 
> All:
>  There was a v6 that use generic properties, but at a late stage, NXP  internals
> decides to switch to fsl,pins property to align with other  i.MXs. Since new
> properties, drivers rewrite, I start this patchset  from v1 with a new patch title.
> A RFC patch for binding was posted,  since Rob said he is fine, so post this
> patchset out.
> 
>  Whether v6 or this patchset, patch 2 is a must and was not changed from
> v6.
> 
>  The pinctrl stuff has been pending for quite sometime, I would be
> apprecaited if any quick comments.
> 
> v6:
> 
> https://lore.kernel.org/all/20240513-pinctrl-scmi-oem-v3-v6-0-904975c99cc4
> @nxp.com/
> RFC:
>  https://lore.kernel.org/all/20240520194942.GA1374705-robh@kernel.org/
> 
> Thanks,
> Peng.
> 
> 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 'fsl,pins' which requires a new driver pinctrl-imx-scmi.c
> 
> The node will be as below:
> pinctrl_usdhc1: usdhc1grp {
> 	fsl,pins = <
> 		IMX95_PAD_SD1_CLK__USDHC1_CLK				0x158e
> 		IMX95_PAD_SD1_CMD__USDHC1_CMD				0x138e
> 		IMX95_PAD_SD1_DATA0__USDHC1_DATA0			0x138e
> 		IMX95_PAD_SD1_DATA1__USDHC1_DATA1			0x138e
> 		IMX95_PAD_SD1_DATA2__USDHC1_DATA2			0x138e
> 		IMX95_PAD_SD1_DATA3__USDHC1_DATA3			0x138e
> 		IMX95_PAD_SD1_DATA4__USDHC1_DATA4			0x138e
> 		IMX95_PAD_SD1_DATA5__USDHC1_DATA5			0x138e
> 		IMX95_PAD_SD1_DATA6__USDHC1_DATA6			0x138e
> 		IMX95_PAD_SD1_DATA7__USDHC1_DATA7			0x138e
> 		IMX95_PAD_SD1_STROBE__USDHC1_STROBE			0x158e
> 	>;
> };
> 
> Signed-off-by: Peng Fan <peng.fan@....com>

For the series:
Reviewed-by: Dong Aisheng <aisheng.dong@....com>

Regards
Aisheng