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Commit ad0f65cd authored by Dragos Bogdan's avatar Dragos Bogdan Committed by Greg Kroah-Hartman
Browse files

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: af300848 ("iio:adc: Add common code for ADI Sigma Delta devices")
Signed-off-by: default avatarDragos Bogdan <dragos.bogdan@analog.com>
Signed-off-by: default avatarAlexandru Ardelean <alexandru.ardelean@analog.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 03363057

drivers/iio/adc/ad_sigma_delta.c

+1 −0
Original line number Diff line number Diff line
@@ -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);