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| author | Dragos Bogdan <dragos.bogdan@analog.com> | 2019-03-19 12:47:00 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-27 09:30:30 +0200 |
| commit | 9d4f298b95e4a5fd550fc258834b846af64815c1 (patch) | |
| tree | 0d75a3c168a7a66914dbfb5b6339817f44bacf2d | |
| parent | 55b4957dcc74722ebea24a12a33e5c5c03b8495f (diff) | |
| download | linux-stable-9d4f298b95e4a5fd550fc258834b846af64815c1.tar.gz linux-stable-9d4f298b95e4a5fd550fc258834b846af64815c1.tar.bz2 linux-stable-9d4f298b95e4a5fd550fc258834b846af64815c1.zip | |
iio: ad_sigma_delta: select channel when reading register
commit fccfb9ce70ed4ea7a145f77b86de62e38178517f upstream.
The desired channel has to be selected in order to correctly fill the
buffer with the corresponding data.
The `ad_sd_write_reg()` already does this, but for the
`ad_sd_read_reg_raw()` this was omitted.
Fixes: af3008485ea03 ("iio:adc: Add common code for ADI Sigma Delta devices")
Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/iio/adc/ad_sigma_delta.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c index 22c4c17cd996..a1d072ecb717 100644 --- a/drivers/iio/adc/ad_sigma_delta.c +++ b/drivers/iio/adc/ad_sigma_delta.c @@ -121,6 +121,7 @@ static int ad_sd_read_reg_raw(struct ad_sigma_delta *sigma_delta, if (sigma_delta->info->has_registers) { data[0] = reg << sigma_delta->info->addr_shift; data[0] |= sigma_delta->info->read_mask; + data[0] |= sigma_delta->comm; spi_message_add_tail(&t[0], &m); } spi_message_add_tail(&t[1], &m); |