Re: [PATCH 3/4] pinctrl: imx: Match the standard SCMI pinctrl device

[Peng Fan <peng.fan@oss.nxp.com>]

On Fri, Oct 02, 2026 at 10:36:32AM +0100, Sudeep Holla wrote:
>Use the standard "pinctrl" SCMI device name instead of the i.MX-specific
>"pinctrl-imx" name. Standard devices no longer have exclusive request
>tracking, so the i.MX and generic pinctrl drivers can register for the
>same protocol/name pair. Their probe checks select the appropriate
>driver for the platform.
>
>This solves the issue that occurs when both "pinmux" and "pinmux-imx"
>devices that share the same fwnode as only the first device registered
>is assigned as the owner of the fwnode. If this owner device fails to
>probe (e.g., its driver is blocklisted or missing), it never reaches
>the driver_bound() stage and the system skips cleaning up its supplier
>links. Even if a alternative device binds successfully, the system
>still looks to the broken original owner. As a result, all dependent
>hardware components (I2C, SPI, UART, USB, MMC, PCIe) defer probing
>forever, halting the boot process.
>
>Note that the solution doesn't support same fwnode being shared by
>multiple devices and associated fw_devlink feature.
>
>Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
>Cc: NXP S32 Linux Team <s32@nxp.com>
>Cc: Linus Walleij <linusw@kernel.org>
>Cc: linux-gpio@vger.kernel.org
>Cc: imx@lists.linux.dev
>Reported-by: Peng Fan <peng.fan@oss.nxp.com>
>Closes: https://lore.kernel.org/all/20260928-driver-core-v1-1-0846bb8e0f32@nxp.com
>Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>

Reviewed-by: Peng Fan <peng.fan@nxp.com>