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charset="utf-8" MFD child devices sharing parent's ACPI Companion fails to probe as acpi_companion_match() returns incompatible ACPI Companion handle for binding with the check for pnp.type.backlight added recently. Remove this pnp.type.backlight check in acpi_companion_match() to fix the automatic modprobe issue. Fixes: 7a7a7ed5f8bdb ("ACPI: scan: Register platform devices for backlight = device objects") Signed-off-by: Pratap Nirujogi --- drivers/acpi/bus.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index f6707325f5821..2ec095e2009e4 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -818,9 +818,6 @@ const struct acpi_device *acpi_companion_match(const st= ruct device *dev) if (list_empty(&adev->pnp.ids)) return NULL; =20 - if (adev->pnp.type.backlight) - return adev; - return acpi_primary_dev_companion(adev, dev); } =20 --=20 2.43.0