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From: "Peng Fan (OSS)" <peng.fan@oss.nxp.com>
Subject: [PATCH 0/3] pinctrl: scmi: support i.MX95 OEM extensions with
 fsl,pins property
Date: Tue, 21 May 2024 14:25:56 +0800
Message-Id: <20240521-pinctrl-scmi-imx95-v1-0-9a1175d735fd@nxp.com>
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To: Sudeep Holla <sudeep.holla@arm.com>, 
 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>, 
 Dong Aisheng <aisheng.dong@nxp.com>, Jacky Bai <ping.bai@nxp.com>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, 
 linux-kernel@vger.kernel.org, imx@lists.linux.dev, 
 linux-gpio@vger.kernel.org, Peng Fan <peng.fan@nxp.com>
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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@nxp.com>
---
Peng Fan (3):
      dt-bindings: firmware: arm,scmi: Add properties for i.MX95 Pinctrl OEM extensions
      pinctrl: scmi: add blocklist
      pinctrl: imx: support SCMI pinctrl protocol for i.MX95

 .../devicetree/bindings/firmware/arm,scmi.yaml     |   4 +-
 .../bindings/firmware/nxp,imx95-scmi-pinctrl.yaml  |  53 +++
 drivers/pinctrl/freescale/Kconfig                  |   9 +
 drivers/pinctrl/freescale/Makefile                 |   1 +
 drivers/pinctrl/freescale/pinctrl-imx-scmi.c       | 357 +++++++++++++++++++++
 drivers/pinctrl/pinctrl-scmi.c                     |   9 +
 6 files changed, 432 insertions(+), 1 deletion(-)
---
base-commit: 632483ea8004edfadd035de36e1ab2c7c4f53158
change-id: 20240521-pinctrl-scmi-imx95-867bea9595cf

Best regards,
-- 
Peng Fan <peng.fan@nxp.com>