diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index c5f5b1ce7954..126e8bdd6d0e 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -636,6 +636,84 @@ static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on) return 0; } +#ifdef CONFIG_ACPI +static bool kxj_acpi_orientation(struct device *dev, + struct iio_mount_matrix *orientation) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_device *adev = ACPI_COMPANION(dev); + char *str; + union acpi_object *obj, *elements; + acpi_status status; + int i, j, val[3]; + bool ret = false; + + if (!acpi_has_method(adev->handle, "ROTM")) + return false; + + status = acpi_evaluate_object(adev->handle, "ROTM", NULL, &buffer); + if (ACPI_FAILURE(status)) { + dev_err(dev, "Failed to get ACPI mount matrix: %d\n", status); + return false; + } + + obj = buffer.pointer; + if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count != 3) { + dev_err(dev, "Unknown ACPI mount matrix package format\n"); + goto out_free_buffer; + } + + elements = obj->package.elements; + for (i = 0; i < 3; i++) { + if (elements[i].type != ACPI_TYPE_STRING) { + dev_err(dev, "Unknown ACPI mount matrix element format\n"); + goto out_free_buffer; + } + + str = elements[i].string.pointer; + if (sscanf(str, "%d %d %d", &val[0], &val[1], &val[2]) != 3) { + dev_err(dev, "Incorrect ACPI mount matrix string format\n"); + goto out_free_buffer; + } + + for (j = 0; j < 3; j++) { + switch (val[j]) { + case -1: str = "-1"; break; + case 0: str = "0"; break; + case 1: str = "1"; break; + default: + dev_err(dev, "Invalid value in ACPI mount matrix: %d\n", val[j]); + goto out_free_buffer; + } + orientation->rotation[i * 3 + j] = str; + } + } + + ret = true; + +out_free_buffer: + kfree(buffer.pointer); + return ret; +} + +static bool kxj1009_apply_acpi_orientation(struct device *dev, + struct iio_mount_matrix *orientation) +{ + struct acpi_device *adev = ACPI_COMPANION(dev); + + if (adev && acpi_dev_hid_uid_match(adev, "KIOX000A", NULL)) + return kxj_acpi_orientation(dev, orientation); + + return false; +} +#else +static bool kxj1009_apply_acpi_orientation(struct device *dev, + struct iio_mount_matrix *orientation) +{ + return false; +} +#endif + static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data) { int ret; @@ -1466,9 +1544,12 @@ static int kxcjk1013_probe(struct i2c_client *client) } else { data->active_high_intr = true; /* default polarity */ - ret = iio_read_mount_matrix(&client->dev, &data->orientation); - if (ret) - return ret; + if (!kxj1009_apply_acpi_orientation(&client->dev, &data->orientation)) { + ret = iio_read_mount_matrix(&client->dev, &data->orientation); + if (ret) + return ret; + } + } ret = devm_regulator_bulk_get_enable(&client->dev,