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Commit 81525fe3 authored by Gustavo Solaira's avatar Gustavo Solaira
Browse files

hwmon: qpnp-adc: add battery thermistor mapping table for SKUT1 



Tcold = 0 DegC and Thot = 45 DegC are used for 8916 SKUT1 device.
Update battery thermistor mapping table for it.

Change-Id: I53a27c73973bb94d998485b2037d54ff833b54bd
Signed-off-by: default avatarGustavo Solaira <gustavos@codeaurora.org>
parent 63bb07f2

drivers/hwmon/qpnp-adc-common.c

+104 −0
Original line number Diff line number Diff line
@@ -350,6 +350,38 @@ static const struct qpnp_vadc_map_pt adcmap_qrd_skuh_btm_threshold[] = { 
	{880,	520},

};



static const struct qpnp_vadc_map_pt adcmap_qrd_skut1_btm_threshold[] = {

	{-400,	1759},

	{-350,	1742},

	{-300,	1720},

	{-250,	1691},

	{-200,	1654},

	{-150,	1619},

	{-100,	1556},

	{-50,	1493},

	{0,	1422},

	{50,	1345},

	{100,	1264},

	{150,	1180},

	{200,	1097},

	{250,	1017},

	{300,	942},

	{350,	873},

	{400,	810},

	{450,	754},

	{500,	706},

	{550,	664},

	{600,	627},

	{650,	596},

	{700,	570},

	{750,	547},

	{800,	528},

	{850,	512},

	{900,	499},

	{950,	487},

	{1000,	477},

};



/* Voltage to temperature */

static const struct qpnp_vadc_map_pt adcmap_100k_104ef_104fb[] = {

	{1758,	-40},
@@ -895,6 +927,25 @@ int32_t qpnp_adc_scale_qrd_skuh_batt_therm(struct qpnp_vadc_chip *chip, 
}

EXPORT_SYMBOL(qpnp_adc_scale_qrd_skuh_batt_therm);



int32_t qpnp_adc_scale_qrd_skut1_batt_therm(struct qpnp_vadc_chip *chip,

		int32_t adc_code,

		const struct qpnp_adc_properties *adc_properties,

		const struct qpnp_vadc_chan_properties *chan_properties,

		struct qpnp_vadc_result *adc_chan_result)

{

	int64_t bat_voltage = 0;



	bat_voltage = qpnp_adc_scale_ratiometric_calib(adc_code,

			adc_properties, chan_properties);



	return qpnp_adc_map_temp_voltage(

			adcmap_qrd_skut1_btm_threshold,

			ARRAY_SIZE(adcmap_qrd_skut1_btm_threshold),

			bat_voltage,

			&adc_chan_result->physical);

}

EXPORT_SYMBOL(qpnp_adc_scale_qrd_skut1_batt_therm);



int32_t qpnp_adc_scale_smb_batt_therm(struct qpnp_vadc_chip *chip,

		int32_t adc_code,

		const struct qpnp_adc_properties *adc_properties,
@@ -1372,6 +1423,59 @@ int32_t qpnp_adc_qrd_skuh_btm_scaler(struct qpnp_vadc_chip *chip, 
}

EXPORT_SYMBOL(qpnp_adc_qrd_skuh_btm_scaler);



int32_t qpnp_adc_qrd_skut1_btm_scaler(struct qpnp_vadc_chip *chip,

		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold)

{

	struct qpnp_vadc_linear_graph btm_param;

	int64_t low_output = 0, high_output = 0;

	int rc = 0;



	qpnp_get_vadc_gain_and_offset(chip, &btm_param, CALIB_RATIOMETRIC);



	pr_debug("warm_temp:%d and cool_temp:%d\n", param->high_temp,

				param->low_temp);

	rc = qpnp_adc_map_voltage_temp(

		adcmap_qrd_skut1_btm_threshold,

		ARRAY_SIZE(adcmap_qrd_skut1_btm_threshold),

		(param->low_temp),

		&low_output);

	if (rc) {

		pr_debug("low_temp mapping failed with %d\n", rc);

		return rc;

	}



	pr_debug("low_output:%lld\n", low_output);

	low_output *= btm_param.dy;

	do_div(low_output, btm_param.adc_vref);

	low_output += btm_param.adc_gnd;



	rc = qpnp_adc_map_voltage_temp(

		adcmap_qrd_skut1_btm_threshold,

		ARRAY_SIZE(adcmap_qrd_skut1_btm_threshold),

		(param->high_temp),

		&high_output);

	if (rc) {

		pr_debug("high temp mapping failed with %d\n", rc);

		return rc;

	}



	pr_debug("high_output:%lld\n", high_output);

	high_output *= btm_param.dy;

	do_div(high_output, btm_param.adc_vref);

	high_output += btm_param.adc_gnd;



	/* btm low temperature correspondes to high voltage threshold */

	*low_threshold = high_output;

	/* btm high temperature correspondes to low voltage threshold */

	*high_threshold = low_output;



	pr_debug("high_volt:%d, low_volt:%d\n", *high_threshold,

				*low_threshold);

	return 0;

}

EXPORT_SYMBOL(qpnp_adc_qrd_skut1_btm_scaler);



int32_t qpnp_adc_smb_btm_rscaler(struct qpnp_vadc_chip *chip,

		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold)

drivers/hwmon/qpnp-adc-voltage.c

+1 −0
Original line number Diff line number Diff line
@@ -161,6 +161,7 @@ static struct qpnp_vadc_scale_fn vadc_scale_fn[] = { 
	[SCALE_QRD_SKUG_BATT_THERM] = {qpnp_adc_scale_qrd_skug_batt_therm},

	[SCALE_QRD_SKUH_BATT_THERM] = {qpnp_adc_scale_qrd_skuh_batt_therm},

	[SCALE_NCP_03WF683_THERM] = {qpnp_adc_scale_therm_ncp03},

	[SCALE_QRD_SKUT1_BATT_THERM] = {qpnp_adc_scale_qrd_skut1_batt_therm},

};



static struct qpnp_vadc_rscale_fn adc_vadc_rscale_fn[] = {

drivers/thermal/qpnp-adc-tm.c

+1 −0
Original line number Diff line number Diff line
@@ -291,6 +291,7 @@ static struct qpnp_adc_tm_reverse_scale_fn adc_tm_rscale_fn[] = { 
	[SCALE_R_SMB_BATT_THERM] = {qpnp_adc_smb_btm_rscaler},

	[SCALE_R_ABSOLUTE] = {qpnp_adc_absolute_rthr},

	[SCALE_QRD_SKUH_RBATT_THERM] = {qpnp_adc_qrd_skuh_btm_scaler},

	[SCALE_QRD_SKUT1_RBATT_THERM] = {qpnp_adc_qrd_skut1_btm_scaler},

};



static int32_t qpnp_adc_tm_read_reg(struct qpnp_adc_tm_chip *chip,

include/linux/qpnp/qpnp-adc.h

+47 −0
Original line number Diff line number Diff line
@@ -251,6 +251,8 @@ enum qpnp_adc_channel_scaling_param { 
 *          btm parameters for SKUG.

 * %SCALE_QRD_SKUH_BATT_THERM: Conversion to temperature(decidegC) based on

 *          btm parameters for SKUH

 * %SCALE_QRD_SKUT1_BATT_THERM: Conversion to temperature(decidegC) based on

 *          btm parameters for SKUT1

 * %SCALE_NONE: Do not use this scaling type.

 */

enum qpnp_adc_scale_fn_type {
@@ -266,6 +268,7 @@ enum qpnp_adc_scale_fn_type { 
	SCALE_QRD_SKUG_BATT_THERM,

	SCALE_QRD_SKUH_BATT_THERM,

	SCALE_NCP_03WF683_THERM,

	SCALE_QRD_SKUT1_BATT_THERM,

	SCALE_NONE,

};
@@ -288,6 +291,7 @@ enum qpnp_adc_tm_rscale_fn_type { 
	SCALE_R_SMB_BATT_THERM,

	SCALE_R_ABSOLUTE,

	SCALE_QRD_SKUH_RBATT_THERM,

	SCALE_QRD_SKUT1_RBATT_THERM,

	SCALE_RSCALE_NONE,

};
@@ -1250,6 +1254,23 @@ int32_t qpnp_adc_scale_qrd_skuh_batt_therm(struct qpnp_vadc_chip *dev, 
			const struct qpnp_adc_properties *adc_prop,

			const struct qpnp_vadc_chan_properties *chan_prop,

			struct qpnp_vadc_result *chan_rslt);

/**

 * qpnp_adc_scale_qrd_skut1_batt_therm() - Scales the pre-calibrated digital output

 *		of an ADC to the ADC reference and compensates for the

 *		gain and offset. Returns the temperature in decidegC.

 * @dev:	Structure device for qpnp vadc

 * @adc_code:	pre-calibrated digital ouput of the ADC.

 * @adc_prop:	adc properties of the pm8xxx adc such as bit resolution,

 *		reference voltage.

 * @chan_prop:	individual channel properties to compensate the i/p scaling,

 *		slope and offset.

 * @chan_rslt:	physical result to be stored.

 */

int32_t qpnp_adc_scale_qrd_skut1_batt_therm(struct qpnp_vadc_chip *dev,

			int32_t adc_code,

			const struct qpnp_adc_properties *adc_prop,

			const struct qpnp_vadc_chan_properties *chan_prop,

			struct qpnp_vadc_result *chan_rslt);

/**

 * qpnp_adc_scale_smb_batt_therm() - Scales the pre-calibrated digital output

 *		of an ADC to the ADC reference and compensates for the
@@ -1437,6 +1458,22 @@ int32_t qpnp_adc_btm_scaler(struct qpnp_vadc_chip *dev, 
int32_t qpnp_adc_qrd_skuh_btm_scaler(struct qpnp_vadc_chip *dev,

		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold);

/**

 * qpnp_adc_qrd_skut1_btm_scaler() - Performs reverse calibration on the low/high

 *		temperature threshold values passed by the client.

 *		The function maps the temperature to voltage and applies

 *		ratiometric calibration on the voltage values for SKUT1 board.

 * @dev:	Structure device for qpnp vadc

 * @param:	The input parameters that contain the low/high temperature

 *		values.

 * @low_threshold: The low threshold value that needs to be updated with

 *		the above calibrated voltage value.

 * @high_threshold: The low threshold value that needs to be updated with

 *		the above calibrated voltage value.

 */

int32_t qpnp_adc_qrd_skut1_btm_scaler(struct qpnp_vadc_chip *dev,

		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold);

/**

 * qpnp_adc_tm_scale_therm_voltage_pu2() - Performs reverse calibration

 *		and convert given temperature to voltage on supported
@@ -1662,6 +1699,12 @@ static inline int32_t qpnp_adc_scale_qrd_skuh_batt_therm( 
			const struct qpnp_vadc_chan_properties *chan_prop,

			struct qpnp_vadc_result *chan_rslt)

{ return -ENXIO; }

static inline int32_t qpnp_adc_scale_qrd_skut1_batt_therm(

			struct qpnp_vadc_chip *vdev, int32_t adc_code,

			const struct qpnp_adc_properties *adc_prop,

			const struct qpnp_vadc_chan_properties *chan_prop,

			struct qpnp_vadc_result *chan_rslt)

{ return -ENXIO; }

static inline int32_t qpnp_adc_scale_smb_batt_therm(struct qpnp_vadc_chip *vadc,

			int32_t adc_code,

			const struct qpnp_adc_properties *adc_prop,
@@ -1730,6 +1773,10 @@ static inline int32_t qpnp_adc_qrd_skuh_btm_scaler(struct qpnp_vadc_chip *dev, 
		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold)

{ return -ENXIO; }

static inline int32_t qpnp_adc_qrd_skut1_btm_scaler(struct qpnp_vadc_chip *dev,

		struct qpnp_adc_tm_btm_param *param,

		uint32_t *low_threshold, uint32_t *high_threshold)

{ return -ENXIO; }

static inline int32_t qpnp_adc_scale_millidegc_pmic_voltage_thr(

		struct qpnp_vadc_chip *dev,

		struct qpnp_adc_tm_btm_param *param,