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| author | Siddartha Mohanadoss <smohanad@codeaurora.org> | 2017-06-12 13:01:48 -0700 |
|---|---|---|
| committer | Siddartha Mohanadoss <smohanad@codeaurora.org> | 2017-06-12 14:34:05 -0700 |
| commit | be4c84ffe8d1ccfe205edfaae0e4f00e7749f5e8 (patch) | |
| tree | 914407bc20d214146e7a61fc463212c6fecdf921 | |
| parent | c1a2472056c800ff46e0ac21a4b67c179a570ad0 (diff) | |
iio: rradc: Update thermistor scaling
Scale the result with scaling coefficient before performing
an integer division to retain the resolution.
Change-Id: I11480099996e16e90736c667691ff0f057c02261
Signed-off-by: Siddartha Mohanadoss <smohanad@codeaurora.org>
| -rw-r--r-- | drivers/iio/adc/qcom-rradc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/adc/qcom-rradc.c b/drivers/iio/adc/qcom-rradc.c index 537cca877f66..5c20970ccbbb 100644 --- a/drivers/iio/adc/qcom-rradc.c +++ b/drivers/iio/adc/qcom-rradc.c @@ -331,8 +331,8 @@ static int rradc_post_process_therm(struct rradc_chip *chip, int64_t temp; /* K = code/4 */ - temp = div64_s64(adc_code, FG_ADC_RR_BATT_THERM_LSB_K); - temp *= FG_ADC_SCALE_MILLI_FACTOR; + temp = ((int64_t)adc_code * FG_ADC_SCALE_MILLI_FACTOR); + temp = div64_s64(temp, FG_ADC_RR_BATT_THERM_LSB_K); *result_millidegc = temp - FG_ADC_KELVINMIL_CELSIUSMIL; return 0; |