[PATCH 8/8] iio: accel: bmc150: Set label based on accel-location for ACPI DUAL250E fwnodes

[Hans de Goede]

Some Yoga laptops with 1 accelerometer in the display and 1 in the base,
use an ACPI HID of DUAL250E instead of BOSC0200.

Set the iio-device's label for DUAL250E devices to a value indicating which
sensor is which, mirroring how we do this for BOSC0200 dual sensor devices.

Note the DUAL250E fwnode unfortunately does not include a mount-matrix.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 drivers/iio/accel/bmc150-accel-core.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c
index 932007895f18..08966ee82e43 100644
--- a/drivers/iio/accel/bmc150-accel-core.c
+++ b/drivers/iio/accel/bmc150-accel-core.c
@@ -397,6 +397,17 @@ static bool bmc150_apply_acpi_orientation(struct device *dev,
 	acpi_status status;
 	int i, j, val[3];
 
+	/* Special case for devices with a "DUAL250E" HID */
+	if (adev && acpi_dev_hid_uid_match(adev, "DUAL250E", NULL)) {
+		if (strcmp(dev_name(dev), "i2c-DUAL250E:base") == 0)
+			label = "accel-base";
+		else
+			label = "accel-display";
+
+		indio_dev->label = label;
+		return false; /* DUAL250E fwnodes have no mount matrix info */
+	}
+
 	if (!adev || !acpi_dev_hid_uid_match(adev, "BOSC0200", NULL))
 		return false;
 
-- 
2.31.1