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| author | Denis Ciocca <denis.ciocca@st.com> | 2019-07-18 15:53:53 -0700 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-07-27 22:52:06 +0100 |
| commit | 062809ef7733209312562e87cefc84a470430929 (patch) | |
| tree | d8ba6b9866b49d2b445ab56bcfc5607f7a2eb97a /drivers/iio/accel/st_accel_buffer.c | |
| parent | 1ecd245e0eb23d1c3803474eba75589743d0d1fe (diff) | |
| download | linux-stable-062809ef7733209312562e87cefc84a470430929.tar.gz linux-stable-062809ef7733209312562e87cefc84a470430929.tar.bz2 linux-stable-062809ef7733209312562e87cefc84a470430929.zip | |
iio: make st_sensors drivers use regmap
This patch is meant to replace the i2c/spi transfer functions with
regmap. SPI framework requires DMA safe buffers so let's add GFP_DMA
flag for memory allocation used by bulk_read functions.
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/accel/st_accel_buffer.c')
| -rw-r--r-- | drivers/iio/accel/st_accel_buffer.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c index 0205c0167cdd..05f9aea431e2 100644 --- a/drivers/iio/accel/st_accel_buffer.c +++ b/drivers/iio/accel/st_accel_buffer.c @@ -39,7 +39,8 @@ static int st_accel_buffer_postenable(struct iio_dev *indio_dev) int err; struct st_sensor_data *adata = iio_priv(indio_dev); - adata->buffer_data = kmalloc(indio_dev->scan_bytes, GFP_KERNEL); + adata->buffer_data = kmalloc(indio_dev->scan_bytes, + GFP_DMA | GFP_KERNEL); if (adata->buffer_data == NULL) { err = -ENOMEM; goto allocate_memory_error; |