4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Emil Gedenryd emil.gedenryd@axis.com
commit 530688e39c644543b71bdd9cb45fdfb458a28eaa upstream.
The opt3001 driver uses predetermined full-scale range values to determine what exponent to use for event trigger threshold values. The problem is that one of the values specified in the datasheet is missing from the implementation. This causes larger values to be scaled down to an incorrect exponent, effectively reducing the maximum settable threshold value by a factor of 2.
Add missing full-scale range array value.
Fixes: 94a9b7b1809f ("iio: light: add support for TI's opt3001 light sensor") Signed-off-by: Emil Gedenryd emil.gedenryd@axis.com Cc: Stable@vger.kernel.org Link: https://patch.msgid.link/20240913-add_opt3002-v2-1-69e04f840360@axis.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/light/opt3001.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/drivers/iio/light/opt3001.c +++ b/drivers/iio/light/opt3001.c @@ -146,6 +146,10 @@ static const struct opt3001_scale opt300 .val2 = 400000, }, { + .val = 41932, + .val2 = 800000, + }, + { .val = 83865, .val2 = 600000, },