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| author | Hans de Goede <hdegoede@redhat.com> | 2021-02-07 17:09:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-03-11 20:46:59 +0000 |
| commit | 788348a5f788f976908231962c6d9ee9d1e6f2db (patch) | |
| tree | b4a320c3414abda1ac14dff35a87dcf15371c047 /drivers/iio/accel/bmc150-accel-core.c | |
| parent | 6f71bf1991b6f04dc87a4f5b9d6823535f51a50d (diff) | |
| download | linux-788348a5f788f976908231962c6d9ee9d1e6f2db.tar.gz | |
iio: accel: bmc150: Set label based on accel-location on 2-accel yoga-style 2-in-1s
Some 2-in-1 laptops / convertibles with 360° (yoga-style) hinges, use 2 bmc150 accelerometers, defined by a single BOSC0200 ACPI device node (1 in their base and 1 in their display). Since in this case we know the location of each accelerometer, set the label for the accelerometers to the standardized "accel-display" resp. "accel-base" labels. This way userspace can use the labels to get the location. This was tested on a Lenovo ThinkPad Yoga 11e 4th gen (N3450 CPU). Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20210207160901.110643-3-hdegoede@redhat.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/accel/bmc150-accel-core.c')
| -rw-r--r-- | drivers/iio/accel/bmc150-accel-core.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index 7e425ebcd7ea..b0dbd12cbf42 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -443,26 +443,32 @@ static bool bmc150_apply_acpi_orientation(struct device *dev, struct iio_mount_matrix *orientation) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct iio_dev *indio_dev = dev_get_drvdata(dev); struct acpi_device *adev = ACPI_COMPANION(dev); + char *name, *alt_name, *label, *str; union acpi_object *obj, *elements; - char *name, *alt_name, *str; acpi_status status; int i, j, val[3]; if (!adev || !acpi_dev_hid_uid_match(adev, "BOSC0200", NULL)) return false; - if (strcmp(dev_name(dev), "i2c-BOSC0200:base") == 0) + if (strcmp(dev_name(dev), "i2c-BOSC0200:base") == 0) { alt_name = "ROMK"; - else + label = "accel-base"; + } else { alt_name = "ROMS"; + label = "accel-display"; + } - if (acpi_has_method(adev->handle, "ROTM")) + if (acpi_has_method(adev->handle, "ROTM")) { name = "ROTM"; - else if (acpi_has_method(adev->handle, alt_name)) + } else if (acpi_has_method(adev->handle, alt_name)) { name = alt_name; - else + indio_dev->label = label; + } else { return false; + } status = acpi_evaluate_object(adev->handle, name, NULL, &buffer); if (ACPI_FAILURE(status)) { |