aboutsummaryrefslogtreecommitdiffstats
path: root/include/linux/iio/adc/qcom-vadc-common.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/iio/adc/qcom-vadc-common.h')
-rw-r--r--include/linux/iio/adc/qcom-vadc-common.h17
1 files changed, 5 insertions, 12 deletions
diff --git a/include/linux/iio/adc/qcom-vadc-common.h b/include/linux/iio/adc/qcom-vadc-common.h
index 33f60f43e1aa..aa21b032e861 100644
--- a/include/linux/iio/adc/qcom-vadc-common.h
+++ b/include/linux/iio/adc/qcom-vadc-common.h
@@ -6,6 +6,7 @@
#ifndef QCOM_VADC_COMMON_H
#define QCOM_VADC_COMMON_H
+#include <linux/math.h>
#include <linux/types.h>
#define VADC_CONV_TIME_MIN_US 2000
@@ -80,16 +81,6 @@ struct vadc_linear_graph {
};
/**
- * struct vadc_prescale_ratio - Represent scaling ratio for ADC input.
- * @num: the inverse numerator of the gain applied to the input channel.
- * @den: the inverse denominator of the gain applied to the input channel.
- */
-struct vadc_prescale_ratio {
- u32 num;
- u32 den;
-};
-
-/**
* enum vadc_scale_fn_type - Scaling function to convert ADC code to
* physical scaled units for the channel.
* SCALE_DEFAULT: Default scaling to convert raw adc code to voltage (uV).
@@ -144,12 +135,12 @@ struct adc5_data {
int qcom_vadc_scale(enum vadc_scale_fn_type scaletype,
const struct vadc_linear_graph *calib_graph,
- const struct vadc_prescale_ratio *prescale,
+ const struct u32_fract *prescale,
bool absolute,
u16 adc_code, int *result_mdec);
struct qcom_adc5_scale_type {
- int (*scale_fn)(const struct vadc_prescale_ratio *prescale,
+ int (*scale_fn)(const struct u32_fract *prescale,
const struct adc5_data *data, u16 adc_code, int *result);
};
@@ -161,6 +152,8 @@ int qcom_adc5_hw_scale(enum vadc_scale_fn_type scaletype,
u16 qcom_adc_tm5_temp_volt_scale(unsigned int prescale_ratio,
u32 full_scale_code_volt, int temp);
+u16 qcom_adc_tm5_gen2_temp_res_scale(int temp);
+
int qcom_adc5_prescaling_from_dt(u32 num, u32 den);
int qcom_adc5_hw_settle_time_from_dt(u32 value, const unsigned int *hw_settle);