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@xxxxxxx/ RFC: https://lore.kernel.org/all/20240520194942.GA1374705-robh@xxxxxxxxxx/ 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@xxxxxxx> --- 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@xxxxxxx>
