The vendor introduced an updated revision of IQS620A(T) silicon which is backwards-compatible with previous revisions, the only exception being the offset used to derive temperature. Enable this new revision by returning the appropriate offset as a function of the hardware number provided by the parent MFD. Signed-off-by: Jeff LaBundy <jeff@xxxxxxxxxxx> --- drivers/iio/temperature/iqs620at-temp.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iio/temperature/iqs620at-temp.c b/drivers/iio/temperature/iqs620at-temp.c index fe126e1fb783..e2f878d57af7 100644 --- a/drivers/iio/temperature/iqs620at-temp.c +++ b/drivers/iio/temperature/iqs620at-temp.c @@ -17,6 +17,7 @@ #define IQS620_TEMP_SCALE 1000 #define IQS620_TEMP_OFFSET (-100) +#define IQS620_TEMP_OFFSET_V3 (-40) static int iqs620_temp_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, @@ -41,7 +42,8 @@ static int iqs620_temp_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_OFFSET: - *val = IQS620_TEMP_OFFSET; + *val = iqs62x->hw_num < IQS620_HW_NUM_V3 ? IQS620_TEMP_OFFSET + : IQS620_TEMP_OFFSET_V3; return IIO_VAL_INT; default: -- 2.25.1
