From: Jonathan Albrieux <jonathan.albrieux@xxxxxxxxx> commit 7d200b283aa049fcda0d43dd6e03e9e783d2799c upstream. Checking at both msm8909-pm8916.dtsi and msm8916.dtsi from downstream it is indicated that "batt_id" channel has to be scaled with the default function: chan@31 { label = "batt_id"; reg = <0x31>; qcom,decimation = <0>; qcom,pre-div-channel-scaling = <0>; qcom,calibration-type = "ratiometric"; qcom,scale-function = <0>; qcom,hw-settle-time = <0xb>; qcom,fast-avg-setup = <0>; }; Change LR_MUX2_BAT_ID scaling accordingly. Signed-off-by: Jonathan Albrieux <jonathan.albrieux@xxxxxxxxx> Acked-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Fixes: 7c271eea7b8a ("iio: adc: spmi-vadc: Changes to support different scaling") Link: https://lore.kernel.org/r/20210113151808.4628-2-jonathan.albrieux@xxxxxxxxx Cc: <Stable@xxxxxxxxxxxxxxx> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/iio/adc/qcom-spmi-vadc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/iio/adc/qcom-spmi-vadc.c +++ b/drivers/iio/adc/qcom-spmi-vadc.c @@ -606,7 +606,7 @@ static const struct vadc_channels vadc_c VADC_CHAN_NO_SCALE(P_MUX16_1_3, 1) VADC_CHAN_NO_SCALE(LR_MUX1_BAT_THERM, 0) - VADC_CHAN_NO_SCALE(LR_MUX2_BAT_ID, 0) + VADC_CHAN_VOLT(LR_MUX2_BAT_ID, 0, SCALE_DEFAULT) VADC_CHAN_NO_SCALE(LR_MUX3_XO_THERM, 0) VADC_CHAN_NO_SCALE(LR_MUX4_AMUX_THM1, 0) VADC_CHAN_NO_SCALE(LR_MUX5_AMUX_THM2, 0)