Hi Jonathan, On 03-Dec-16 3:19 PM, Jonathan Cameron wrote:
On 30/11/16 09:07, Phani A, Rama Krishna wrote:Hi Jonathan, On 27-Nov-16 9:18 PM, Jonathan Cameron wrote:On 24/11/16 05:31, Rama Krishna Phani A wrote:Several ADC channels are supported in PMIC which can be used to measure voltage, temperature, current etc. Different scaling can be applied on the obtained voltage to report in physical units. Scaling functionality can be different per channel. Add scaling support per channel. Every channel present in adc has an unique conversion formula for obtained voltage. Add support to report in Raw as well as in processed format. Scaling is applied when processed read is requested and is not applied when a Raw read is requested. Signed-off-by: Rama Krishna Phani A <rphani@xxxxxxxxxxxxxx>I obviously didn't make it clear enough in last review. If you can't return a value in response to reading a sysfs attribute, the attribute should not exist. See below for a suggestion on this.Agree., Even here we never expose a channel in sysfs if we dont know the response. Channels in sysfs are populated based on list available from DT. Provided more explanation below.Jonathan--- drivers/iio/adc/qcom-spmi-vadc.c | 435 +++++++++++++++++++++++++++++---------- 1 file changed, 326 insertions(+), 109 deletions(-) diff --git a/drivers/iio/adc/qcom-spmi-vadc.c b/drivers/iio/adc/qcom-spmi-vadc.c index 93c0639..a4e5405 100644 --- a/drivers/iio/adc/qcom-spmi-vadc.c +++ b/drivers/iio/adc/qcom-spmi-vadc.c @@ -84,7 +84,7 @@ #define VADC_MAX_ADC_CODE 0xa800 #define VADC_ABSOLUTE_RANGE_UV 625000 -#define VADC_RATIOMETRIC_RANGE_UV 1800000 +#define VADC_RATIOMETRIC_RANGE 1800 #define VADC_DEF_PRESCALING 0 /* 1:1 */ #define VADC_DEF_DECIMATION 0 /* 512 */ @@ -100,9 +100,23 @@ #define KELVINMIL_CELSIUSMIL 273150 +#define PMI_CHG_SCALE_1 -138890 +#define PMI_CHG_SCALE_2 391750000000 + #define VADC_CHAN_MIN VADC_USBIN #define VADC_CHAN_MAX VADC_LR_MUX3_BUF_PU1_PU2_XO_THERM +/** + * struct vadc_map_pt - Map the graph representation for ADC channel + * @x: Represent the ADC digitized code. + * @y: Represent the physical data which can be temperature, voltage, + * resistance. + */ +struct vadc_map_pt { + s32 x; + s32 y; +}; + /* * VADC_CALIB_ABSOLUTE: uses the 625mV and 1.25V as reference channels. * VADC_CALIB_RATIOMETRIC: uses the reference voltage (1.8V) and GND for @@ -148,6 +162,9 @@ struct vadc_prescale_ratio { * start of conversion. * @avg_samples: ability to provide single result from the ADC * that is an average of multiple measurements. + * @scale_fn: Represents the scaling function to convert voltage + * physical units desired by the client for the channel. + * Referenced from enum vadc_scale_fn_type. */ struct vadc_channel_prop { unsigned int channel; @@ -156,6 +173,7 @@ struct vadc_channel_prop { unsigned int prescale; unsigned int hw_settle_time; unsigned int avg_samples; + unsigned int scale_fn; }; /** @@ -186,6 +204,37 @@ struct vadc_priv { struct mutex lock; }; +/** + * struct vadc_scale_fn - Scaling function prototype + * @scale: Function pointer to one of the scaling functions + * which takes the adc properties, channel properties, + * and returns the physical result. + */ +struct vadc_scale_fn { + int (*scale)(struct vadc_priv *, const struct vadc_channel_prop *, + u16, int *); +}; + +/** + * 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). + * SCALE_THERM_100K_PULLUP: Returns temperature in millidegC. + * Uses a mapping table with 100K pullup. + * SCALE_PMIC_THERM: Returns result in milli degree's Centigrade. + * SCALE_XOTHERM: Returns XO thermistor voltage in millidegC. + * SCALE_PMI_CHG_TEMP: Conversion for PMI CHG temp + * SCALE_NONE: Do not use this scaling type. + */ +enum vadc_scale_fn_type { + SCALE_DEFAULT = 0, + SCALE_THERM_100K_PULLUP, + SCALE_PMIC_THERM, + SCALE_XOTHERM, + SCALE_PMI_CHG_TEMP, + SCALE_NONE, +}; + static const struct vadc_prescale_ratio vadc_prescale_ratios[] = { {.num = 1, .den = 1}, {.num = 1, .den = 3}, @@ -197,6 +246,44 @@ struct vadc_priv { {.num = 1, .den = 10} }; +/* Voltage to temperature */ +static const struct vadc_map_pt adcmap_100k_104ef_104fb[] = { + {1758, -40}, + {1742, -35}, + {1719, -30}, + {1691, -25}, + {1654, -20}, + {1608, -15}, + {1551, -10}, + {1483, -5}, + {1404, 0}, + {1315, 5}, + {1218, 10}, + {1114, 15}, + {1007, 20}, + {900, 25}, + {795, 30}, + {696, 35}, + {605, 40}, + {522, 45}, + {448, 50}, + {383, 55}, + {327, 60}, + {278, 65}, + {237, 70}, + {202, 75}, + {172, 80}, + {146, 85}, + {125, 90}, + {107, 95}, + {92, 100}, + {79, 105}, + {68, 110}, + {59, 115}, + {51, 120}, + {44, 125} +}; + static int vadc_read(struct vadc_priv *vadc, u16 offset, u8 *data) { return regmap_bulk_read(vadc->regmap, vadc->base + offset, data, 1); @@ -418,7 +505,7 @@ static int vadc_measure_ref_points(struct vadc_priv *vadc) u16 read_1, read_2; int ret; - vadc->graph[VADC_CALIB_RATIOMETRIC].dx = VADC_RATIOMETRIC_RANGE_UV; + vadc->graph[VADC_CALIB_RATIOMETRIC].dx = VADC_RATIOMETRIC_RANGE; vadc->graph[VADC_CALIB_ABSOLUTE].dx = VADC_ABSOLUTE_RANGE_UV; prop = vadc_get_channel(vadc, VADC_REF_1250MV); @@ -468,6 +555,51 @@ static int vadc_measure_ref_points(struct vadc_priv *vadc) return ret; } +static int vadc_map_voltage_temp(const struct vadc_map_pt *pts, + u32 tablesize, s32 input, s64 *output) +{ + bool descending = 1; + u32 i = 0; + + if (!pts) + return -EINVAL; + + /* Check if table is descending or ascending */ + if (tablesize > 1) { + if (pts[0].x < pts[1].x) + descending = 0; + } + + while (i < tablesize) { + if ((descending) && (pts[i].x < input)) { + /* table entry is less than measured*/ + /* value and table is descending, stop */ + break; + } else if ((!descending) && + (pts[i].x > input)) { + /* table entry is greater than measured*/ + /*value and table is ascending, stop */ + break; + } + i++; + } + + if (i == 0) { + *output = pts[0].y; + } else if (i == tablesize) { + *output = pts[tablesize - 1].y; + } else { + /* result is between search_index and search_index-1 */ + /* interpolate linearly */ + *output = (((s32)((pts[i].y - pts[i - 1].y) * + (input - pts[i - 1].x)) / + (pts[i].x - pts[i - 1].x)) + + pts[i - 1].y); + } + + return 0; +} + static void vadc_scale_calib(struct vadc_priv *vadc, u16 adc_code, const struct vadc_channel_prop *prop, s64 *scale_voltage) @@ -502,6 +634,77 @@ static int vadc_scale_volt(struct vadc_priv *vadc, return 0; } +static int vadc_scale_therm(struct vadc_priv *vadc, + const struct vadc_channel_prop *prop, u16 adc_code, + int *result_mdec) +{ + s64 voltage = 0, result = 0; + + vadc_scale_calib(vadc, adc_code, prop, &voltage); + + if (prop->calibration == VADC_CALIB_ABSOLUTE) + voltage /= 1000; + + vadc_map_voltage_temp(adcmap_100k_104ef_104fb, + ARRAY_SIZE(adcmap_100k_104ef_104fb), + voltage, &result); + result *= 1000; + *result_mdec = result; + + return 0; +} + +static int vadc_scale_die_temp(struct vadc_priv *vadc, + const struct vadc_channel_prop *prop, + u16 adc_code, int *result_mdec) +{ + const struct vadc_prescale_ratio *prescale; + s64 voltage = 0; + + vadc_scale_calib(vadc, adc_code, prop, &voltage); + + if (voltage > 0) { + prescale = &vadc_prescale_ratios[prop->prescale]; + voltage = voltage * prescale->den; + voltage /= (prescale->num * 2); + } else { + voltage = 0; + } + + voltage -= KELVINMIL_CELSIUSMIL; + *result_mdec = voltage; + + return 0; +} + +static int vadc_scale_chg_temp(struct vadc_priv *vadc, + const struct vadc_channel_prop *prop, + u16 adc_code, int *result_mdec) +{ + const struct vadc_prescale_ratio *prescale; + s64 voltage = 0, result = 0; + + vadc_scale_calib(vadc, adc_code, prop, &voltage); + + prescale = &vadc_prescale_ratios[prop->prescale]; + voltage = voltage * prescale->den; + voltage = div64_s64(voltage, prescale->num); + voltage = ((PMI_CHG_SCALE_1) * (voltage * 2)); + voltage = (voltage + PMI_CHG_SCALE_2); + result = div64_s64(voltage, 1000000); + *result_mdec = result; + + return 0; +} + +static int vadc_scale(struct vadc_priv *vadc, + const struct vadc_channel_prop *prop, u16 adc_code, + int *scale) +{ + dev_err(vadc->dev, "Need a scale function\n"); + return 0; +} + static int vadc_decimation_from_dt(u32 value) { if (!is_power_of_2(value) || value < VADC_DECIMATION_MIN || @@ -547,6 +750,15 @@ static int vadc_avg_samples_from_dt(u32 value) return __ffs64(value); } +static struct vadc_scale_fn scale_fn[] = { + [SCALE_DEFAULT] = {vadc_scale_volt}, + [SCALE_THERM_100K_PULLUP] = {vadc_scale_therm}, + [SCALE_PMIC_THERM] = {vadc_scale_die_temp}, + [SCALE_XOTHERM] = {vadc_scale_therm}, + [SCALE_PMI_CHG_TEMP] = {vadc_scale_chg_temp}, + [SCALE_NONE] = {vadc_scale}, +}; + static int vadc_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) @@ -563,7 +775,7 @@ static int vadc_read_raw(struct iio_dev *indio_dev, if (ret) break; - vadc_scale_volt(vadc, prop, adc_code, val); + scale_fn[prop->scale_fn].scale(vadc, prop, adc_code, val); return IIO_VAL_INT; case IIO_CHAN_INFO_RAW: @@ -606,23 +818,27 @@ struct vadc_channels { unsigned int prescale_index; enum iio_chan_type type; long info_mask; + unsigned int scale_fn; }; -#define VADC_CHAN(_dname, _type, _mask, _pre) \ +#define VADC_CHAN(_dname, _type, _mask, _pre, _scale) \ [VADC_##_dname] = { \ .datasheet_name = __stringify(_dname), \ .prescale_index = _pre, \ .type = _type, \ - .info_mask = _mask \ + .info_mask = _mask, \ + .scale_fn = _scale \ }, \ -#define VADC_CHAN_TEMP(_dname, _pre) \ - VADC_CHAN(_dname, IIO_TEMP, BIT(IIO_CHAN_INFO_PROCESSED), _pre) \ +#define VADC_CHAN_TEMP(_dname, _pre, _scale) \ + VADC_CHAN(_dname, IIO_TEMP, \ + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_PROCESSED), \ + _pre, _scale) \ -#define VADC_CHAN_VOLT(_dname, _pre) \ +#define VADC_CHAN_VOLT(_dname, _pre, _scale) \ VADC_CHAN(_dname, IIO_VOLTAGE, \ BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_PROCESSED),\ - _pre) \ + _pre, _scale) \In the SCALE_NONE case you are still creating the sysfs attributes to provide processed. Just have a variant of this macro that doesn't do this. That way we don't end up with a sysfs attribute that always results in an error! #define VADC_CHAN_VOLT_NO_KNOWN_SCALEE(_dname, _pre) \ VADC_CHAN(_dname, IIO_VOLTAGE, BIT(IIO_CHAN_INFO_RAW), _pre);sysfs attributes will be created only for the channels that are populated from DT. Here we are just mapping a function that needs to be invoked in case the channel is available. None of the channels are exposed in sysfs unconditionally. Channels with DT entry only will get exposed in sysfs. For SCALE_NONE .., none of these channels will get exposed in sysfs. Even for other SCALE_* ., the channels will be shown in sysfs only if there is any corresponding DT entry for that channel.But if someone does write a DT that specifies those channels then it'll be wrong. The fix is easy. Fix it in here.
Sure ., Will fix this and will post next patch.
If an entry is created for channels with SCALE_NONE in DT ., then the corresponding SCALE_* function needs to be implemented by removing SCALE_NONE./* * The array represents all possible ADC channels found in the supported PMICs. @@ -630,106 +846,106 @@ struct vadc_channels { * gaps in the array should be treated as reserved channels. */ static const struct vadc_channels vadc_chans[] = { - VADC_CHAN_VOLT(USBIN, 4) - VADC_CHAN_VOLT(DCIN, 4) - VADC_CHAN_VOLT(VCHG_SNS, 3) - VADC_CHAN_VOLT(SPARE1_03, 1) - VADC_CHAN_VOLT(USB_ID_MV, 1) - VADC_CHAN_VOLT(VCOIN, 1) - VADC_CHAN_VOLT(VBAT_SNS, 1) - VADC_CHAN_VOLT(VSYS, 1) - VADC_CHAN_TEMP(DIE_TEMP, 0) - VADC_CHAN_VOLT(REF_625MV, 0) - VADC_CHAN_VOLT(REF_1250MV, 0) - VADC_CHAN_VOLT(CHG_TEMP, 0) - VADC_CHAN_VOLT(SPARE1, 0) - VADC_CHAN_VOLT(SPARE2, 0) - VADC_CHAN_VOLT(GND_REF, 0) - VADC_CHAN_VOLT(VDD_VADC, 0) - - VADC_CHAN_VOLT(P_MUX1_1_1, 0) - VADC_CHAN_VOLT(P_MUX2_1_1, 0) - VADC_CHAN_VOLT(P_MUX3_1_1, 0) - VADC_CHAN_VOLT(P_MUX4_1_1, 0) - VADC_CHAN_VOLT(P_MUX5_1_1, 0) - VADC_CHAN_VOLT(P_MUX6_1_1, 0) - VADC_CHAN_VOLT(P_MUX7_1_1, 0) - VADC_CHAN_VOLT(P_MUX8_1_1, 0) - VADC_CHAN_VOLT(P_MUX9_1_1, 0) - VADC_CHAN_VOLT(P_MUX10_1_1, 0) - VADC_CHAN_VOLT(P_MUX11_1_1, 0) - VADC_CHAN_VOLT(P_MUX12_1_1, 0) - VADC_CHAN_VOLT(P_MUX13_1_1, 0) - VADC_CHAN_VOLT(P_MUX14_1_1, 0) - VADC_CHAN_VOLT(P_MUX15_1_1, 0) - VADC_CHAN_VOLT(P_MUX16_1_1, 0) - - VADC_CHAN_VOLT(P_MUX1_1_3, 1) - VADC_CHAN_VOLT(P_MUX2_1_3, 1) - VADC_CHAN_VOLT(P_MUX3_1_3, 1) - VADC_CHAN_VOLT(P_MUX4_1_3, 1) - VADC_CHAN_VOLT(P_MUX5_1_3, 1) - VADC_CHAN_VOLT(P_MUX6_1_3, 1) - VADC_CHAN_VOLT(P_MUX7_1_3, 1) - VADC_CHAN_VOLT(P_MUX8_1_3, 1) - VADC_CHAN_VOLT(P_MUX9_1_3, 1) - VADC_CHAN_VOLT(P_MUX10_1_3, 1) - VADC_CHAN_VOLT(P_MUX11_1_3, 1) - VADC_CHAN_VOLT(P_MUX12_1_3, 1) - VADC_CHAN_VOLT(P_MUX13_1_3, 1) - VADC_CHAN_VOLT(P_MUX14_1_3, 1) - VADC_CHAN_VOLT(P_MUX15_1_3, 1) - VADC_CHAN_VOLT(P_MUX16_1_3, 1) - - VADC_CHAN_VOLT(LR_MUX1_BAT_THERM, 0) - VADC_CHAN_VOLT(LR_MUX2_BAT_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_XO_THERM, 0) - VADC_CHAN_VOLT(LR_MUX4_AMUX_THM1, 0) - VADC_CHAN_VOLT(LR_MUX5_AMUX_THM2, 0) - VADC_CHAN_VOLT(LR_MUX6_AMUX_THM3, 0) - VADC_CHAN_VOLT(LR_MUX7_HW_ID, 0) - VADC_CHAN_VOLT(LR_MUX8_AMUX_THM4, 0) - VADC_CHAN_VOLT(LR_MUX9_AMUX_THM5, 0) - VADC_CHAN_VOLT(LR_MUX10_USB_ID, 0) - VADC_CHAN_VOLT(AMUX_PU1, 0) - VADC_CHAN_VOLT(AMUX_PU2, 0) - VADC_CHAN_VOLT(LR_MUX3_BUF_XO_THERM, 0) - - VADC_CHAN_VOLT(LR_MUX1_PU1_BAT_THERM, 0) - VADC_CHAN_VOLT(LR_MUX2_PU1_BAT_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_PU1_XO_THERM, 0) - VADC_CHAN_VOLT(LR_MUX4_PU1_AMUX_THM1, 0) - VADC_CHAN_VOLT(LR_MUX5_PU1_AMUX_THM2, 0) - VADC_CHAN_VOLT(LR_MUX6_PU1_AMUX_THM3, 0) - VADC_CHAN_VOLT(LR_MUX7_PU1_AMUX_HW_ID, 0) - VADC_CHAN_VOLT(LR_MUX8_PU1_AMUX_THM4, 0) - VADC_CHAN_VOLT(LR_MUX9_PU1_AMUX_THM5, 0) - VADC_CHAN_VOLT(LR_MUX10_PU1_AMUX_USB_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_BUF_PU1_XO_THERM, 0) - - VADC_CHAN_VOLT(LR_MUX1_PU2_BAT_THERM, 0) - VADC_CHAN_VOLT(LR_MUX2_PU2_BAT_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_PU2_XO_THERM, 0) - VADC_CHAN_VOLT(LR_MUX4_PU2_AMUX_THM1, 0) - VADC_CHAN_VOLT(LR_MUX5_PU2_AMUX_THM2, 0) - VADC_CHAN_VOLT(LR_MUX6_PU2_AMUX_THM3, 0) - VADC_CHAN_VOLT(LR_MUX7_PU2_AMUX_HW_ID, 0) - VADC_CHAN_VOLT(LR_MUX8_PU2_AMUX_THM4, 0)- VADC_CHAN_VOLT(LR_MUX9_PU2_AMUX_THM5, 0)- VADC_CHAN_VOLT(LR_MUX10_PU2_AMUX_USB_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_BUF_PU2_XO_THERM, 0) - - VADC_CHAN_VOLT(LR_MUX1_PU1_PU2_BAT_THERM, 0) - VADC_CHAN_VOLT(LR_MUX2_PU1_PU2_BAT_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_PU1_PU2_XO_THERM, 0) - VADC_CHAN_VOLT(LR_MUX4_PU1_PU2_AMUX_THM1, 0) - VADC_CHAN_VOLT(LR_MUX5_PU1_PU2_AMUX_THM2, 0) - VADC_CHAN_VOLT(LR_MUX6_PU1_PU2_AMUX_THM3, 0) - VADC_CHAN_VOLT(LR_MUX7_PU1_PU2_AMUX_HW_ID, 0) - VADC_CHAN_VOLT(LR_MUX8_PU1_PU2_AMUX_THM4, 0) - VADC_CHAN_VOLT(LR_MUX9_PU1_PU2_AMUX_THM5, 0) - VADC_CHAN_VOLT(LR_MUX10_PU1_PU2_AMUX_USB_ID, 0) - VADC_CHAN_VOLT(LR_MUX3_BUF_PU1_PU2_XO_THERM, 0) + VADC_CHAN_VOLT(USBIN, 4, SCALE_DEFAULT) + VADC_CHAN_VOLT(DCIN, 4, SCALE_DEFAULT) + VADC_CHAN_VOLT(VCHG_SNS, 3, SCALE_NONE) + VADC_CHAN_VOLT(SPARE1_03, 1, SCALE_NONE) + VADC_CHAN_VOLT(USB_ID_MV, 1, SCALE_NONE) + VADC_CHAN_VOLT(VCOIN, 1, SCALE_DEFAULT) + VADC_CHAN_VOLT(VBAT_SNS, 1, SCALE_NONE) + VADC_CHAN_VOLT(VSYS, 1, SCALE_DEFAULT) + VADC_CHAN_TEMP(DIE_TEMP, 0, SCALE_PMIC_THERM) + VADC_CHAN_VOLT(REF_625MV, 0, SCALE_DEFAULT) + VADC_CHAN_VOLT(REF_1250MV, 0, SCALE_DEFAULT) + VADC_CHAN_VOLT(CHG_TEMP, 0, SCALE_NONE) + VADC_CHAN_VOLT(SPARE1, 0, SCALE_NONE) + VADC_CHAN_TEMP(SPARE2, 0, SCALE_PMI_CHG_TEMP) + VADC_CHAN_VOLT(GND_REF, 0, SCALE_DEFAULT) + VADC_CHAN_VOLT(VDD_VADC, 0, SCALE_DEFAULT) + + VADC_CHAN_VOLT(P_MUX1_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX2_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX3_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX4_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX5_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX6_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX7_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX8_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX9_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX10_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX11_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX12_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX13_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX14_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX15_1_1, 0, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX16_1_1, 0, SCALE_NONE) + + VADC_CHAN_VOLT(P_MUX1_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX2_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX3_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX4_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX5_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX6_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX7_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX8_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX9_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX10_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX11_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX12_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX13_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX14_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX15_1_3, 1, SCALE_NONE) + VADC_CHAN_VOLT(P_MUX16_1_3, 1, SCALE_NONE) + + VADC_CHAN_VOLT(LR_MUX1_BAT_THERM, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX2_BAT_ID, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX3_XO_THERM, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX4_AMUX_THM1, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX5_AMUX_THM2, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX6_AMUX_THM3, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX7_HW_ID, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX8_AMUX_THM4, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX9_AMUX_THM5, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX10_USB_ID, 0, SCALE_NONE) + VADC_CHAN_VOLT(AMUX_PU1, 0, SCALE_NONE) + VADC_CHAN_VOLT(AMUX_PU2, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX3_BUF_XO_THERM, 0, SCALE_NONE) + + VADC_CHAN_TEMP(LR_MUX1_PU1_BAT_THERM, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX2_PU1_BAT_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_PU1_XO_THERM, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX4_PU1_AMUX_THM1, 0, SCALE_THERM_100K_PULLUP) + VADC_CHAN_TEMP(LR_MUX5_PU1_AMUX_THM2, 0, SCALE_THERM_100K_PULLUP) + VADC_CHAN_TEMP(LR_MUX6_PU1_AMUX_THM3, 0, SCALE_THERM_100K_PULLUP) + VADC_CHAN_VOLT(LR_MUX7_PU1_AMUX_HW_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX8_PU1_AMUX_THM4, 0, SCALE_THERM_100K_PULLUP) + VADC_CHAN_TEMP(LR_MUX9_PU1_AMUX_THM5, 0, SCALE_THERM_100K_PULLUP) + VADC_CHAN_VOLT(LR_MUX10_PU1_AMUX_USB_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_BUF_PU1_XO_THERM, 0, SCALE_XOTHERM) + + VADC_CHAN_TEMP(LR_MUX1_PU2_BAT_THERM, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX2_PU2_BAT_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_PU2_XO_THERM, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX4_PU2_AMUX_THM1, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX5_PU2_AMUX_THM2, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX6_PU2_AMUX_THM3, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX7_PU2_AMUX_HW_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX8_PU2_AMUX_THM4, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX9_PU2_AMUX_THM5, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX10_PU2_AMUX_USB_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_BUF_PU2_XO_THERM, 0, SCALE_NONE) + + VADC_CHAN_TEMP(LR_MUX1_PU1_PU2_BAT_THERM, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX2_PU1_PU2_BAT_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_PU1_PU2_XO_THERM, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX4_PU1_PU2_AMUX_THM1, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX5_PU1_PU2_AMUX_THM2, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX6_PU1_PU2_AMUX_THM3, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX7_PU1_PU2_AMUX_HW_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX8_PU1_PU2_AMUX_THM4, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX9_PU1_PU2_AMUX_THM5, 0, SCALE_NONE) + VADC_CHAN_VOLT(LR_MUX10_PU1_PU2_AMUX_USB_ID, 0, SCALE_NONE) + VADC_CHAN_TEMP(LR_MUX3_BUF_PU1_PU2_XO_THERM, 0, SCALE_NONE) }; static int vadc_get_dt_channel_data(struct device *dev, @@ -848,6 +1064,7 @@ static int vadc_get_dt_data(struct vadc_priv *vadc, struct device_node *node) return ret; } + prop.scale_fn = vadc_chans[prop.channel].scale_fn; vadc->chan_props[index] = prop; vadc_chan = &vadc_chans[prop.channel];Thanks, Ramakrishna -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
Thanks, Ramakrishna -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
