Revision 1.2 of the datasheet recommends on page 22 to only write non-zero values read from OTP register 0x70 into AFECTRL register. Signed-off-by: Hartmut Knaack <knaack.h@xxxxxx> Reviewed-by: Tiberiu Breana <tiberiu.a.breana@xxxxxxxxx> --- drivers/iio/accel/stk8312.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iio/accel/stk8312.c b/drivers/iio/accel/stk8312.c index c2bd1444d6da..6592be8e6377 100644 --- a/drivers/iio/accel/stk8312.c +++ b/drivers/iio/accel/stk8312.c @@ -150,6 +150,8 @@ static int stk8312_otp_init(struct stk8312_data *data) goto exit_err; ret = i2c_smbus_read_byte_data(client, STK8312_REG_OTPDATA); + if (ret == 0) + ret = -EINVAL; if (ret < 0) goto exit_err; -- 2.4.6 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
