iio:light:cm3323: clear bitmask before set

When setting the bits for integration time, the appropriate bitmask needs
to be cleared first.

Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c
index 869033e48a1facdd4021e3c9d2889d9fc7ab0773..a1d4905cc9d2d9680d5b3972233948fef3114035 100644 (file)
--- a/drivers/iio/light/cm3323.c
+++ b/drivers/iio/light/cm3323.c
@@ -123,7 +123,7 @@ static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2)
        for (i = 0; i < ARRAY_SIZE(cm3323_int_time); i++) {
                if (val == cm3323_int_time[i].val &&
                    val2 == cm3323_int_time[i].val2) {
-                       reg_conf = data->reg_conf;
+                       reg_conf = data->reg_conf & ~CM3323_CONF_IT_MASK;
                        reg_conf |= i << CM3323_CONF_IT_SHIFT;
 
                        ret = i2c_smbus_write_word_data(data->client,