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Wysocki" , linux-iio@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v2 3/4] iio: bmc150-accel-core: Use acpi_read_mount_matrix() helper Date: Mon, 22 Apr 2024 12:02:17 +0200 Message-ID: <20240422100218.7693-4-hdegoede@redhat.com> In-Reply-To: <20240422100218.7693-1-hdegoede@redhat.com> References: <20240422100218.7693-1-hdegoede@redhat.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.5 Replace the duplicate ACPI "ROTM" data parsing code with the new shared acpi_read_mount_matrix() helper. Signed-off-by: Hans de Goede --- drivers/iio/accel/bmc150-accel-core.c | 45 ++------------------------- 1 file changed, 3 insertions(+), 42 deletions(-) diff --git a/drivers/iio/accel/bmc150-accel-core.c b/drivers/iio/accel/bmc150-accel-core.c index 110591804b4c..ace550b0ba40 100644 --- a/drivers/iio/accel/bmc150-accel-core.c +++ b/drivers/iio/accel/bmc150-accel-core.c @@ -23,6 +23,7 @@ #include #include +#include "acpi-helpers.h" #include "bmc150-accel.h" #define BMC150_ACCEL_DRV_NAME "bmc150_accel" @@ -386,13 +387,9 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on) static bool bmc150_apply_bosc0200_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; - acpi_status status; - int i, j, val[3]; + char *name, *alt_name, *label; if (strcmp(dev_name(dev), "i2c-BOSC0200:base") == 0) { alt_name = "ROMK"; @@ -411,43 +408,7 @@ static bool bmc150_apply_bosc0200_acpi_orientation(struct device *dev, return false; } - status = acpi_evaluate_object(adev->handle, name, NULL, &buffer); - if (ACPI_FAILURE(status)) { - dev_warn(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) - goto unknown_format; - - elements = obj->package.elements; - for (i = 0; i < 3; i++) { - if (elements[i].type != ACPI_TYPE_STRING) - goto unknown_format; - - str = elements[i].string.pointer; - if (sscanf(str, "%d %d %d", &val[0], &val[1], &val[2]) != 3) - goto unknown_format; - - 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: goto unknown_format; - } - orientation->rotation[i * 3 + j] = str; - } - } - - kfree(buffer.pointer); - return true; - -unknown_format: - dev_warn(dev, "Unknown ACPI mount matrix format, ignoring\n"); - kfree(buffer.pointer); - return false; + return acpi_read_mount_matrix(dev, orientation, name); } static bool bmc150_apply_dual250e_acpi_orientation(struct device *dev,