1 // SPDX-License-Identifier: GPL-2.0
11 #include "qcom-vadc-common.h"
15 	{1758,	-40},
16 	{1742,	-35},
17 	{1719,	-30},
18 	{1691,	-25},
19 	{1654,	-20},
20 	{1608,	-15},
21 	{1551,	-10},
22 	{1483,	-5},
52  * Voltage to temperature table for 100k pull up for NTCG104EF104 with
56 	{ 1831,	-40000 },
57 	{ 1814,	-35000 },
58 	{ 1791,	-30000 },
59 	{ 1761,	-25000 },
60 	{ 1723,	-20000 },
61 	{ 1675,	-15000 },
62 	{ 1616,	-10000 },
63 	{ 1545,	-5000 },
108  * Resistance to temperature table for 100k pull up for NTCG104EF104.
111 	{ 4250657, -40960 },
112 	{ 3962085, -39936 },
113 	{ 3694875, -38912 },
114 	{ 3447322, -37888 },
115 	{ 3217867, -36864 },
116 	{ 3005082, -35840 },
117 	{ 2807660, -34816 },
118 	{ 2624405, -33792 },
119 	{ 2454218, -32768 },
120 	{ 2296094, -31744 },
121 	{ 2149108, -30720 },
122 	{ 2012414, -29696 },
123 	{ 1885232, -28672 },
124 	{ 1766846, -27648 },
125 	{ 1656598, -26624 },
126 	{ 1553884, -25600 },
127 	{ 1458147, -24576 },
128 	{ 1368873, -23552 },
129 	{ 1285590, -22528 },
130 	{ 1207863, -21504 },
131 	{ 1135290, -20480 },
132 	{ 1067501, -19456 },
133 	{ 1004155, -18432 },
134 	{ 944935, -17408 },
135 	{ 889550, -16384 },
136 	{ 837731, -15360 },
137 	{ 789229, -14336 },
138 	{ 743813, -13312 },
139 	{ 701271, -12288 },
140 	{ 661405, -11264 },
141 	{ 624032, -10240 },
142 	{ 588982, -9216 },
143 	{ 556100, -8192 },
144 	{ 525239, -7168 },
145 	{ 496264, -6144 },
146 	{ 469050, -5120 },
147 	{ 443480, -4096 },
148 	{ 419448, -3072 },
149 	{ 396851, -2048 },
150 	{ 375597, -1024 },
330 		return -EINVAL;  in qcom_vadc_map_voltage_temp()
332 	/* Check if table is descending or ascending */  in qcom_vadc_map_voltage_temp()
340 			/* table entry is less than measured*/  in qcom_vadc_map_voltage_temp()
341 			 /* value and table is descending, stop */  in qcom_vadc_map_voltage_temp()
345 			/* table entry is greater than measured*/  in qcom_vadc_map_voltage_temp()
346 			/*value and table is ascending, stop */  in qcom_vadc_map_voltage_temp()
355 		*output = pts[tablesize - 1].y;  in qcom_vadc_map_voltage_temp()
357 		/* result is between search_index and search_index-1 */  in qcom_vadc_map_voltage_temp()
359 		*output = (((s32)((pts[i].y - pts[i - 1].y) *  in qcom_vadc_map_voltage_temp()
360 			(input - pts[i - 1].x)) /  in qcom_vadc_map_voltage_temp()
361 			(pts[i].x - pts[i - 1].x)) +  in qcom_vadc_map_voltage_temp()
362 			pts[i - 1].y);  in qcom_vadc_map_voltage_temp()
373 	*scale_voltage = (adc_code - calib_graph->gnd);  in qcom_vadc_scale_calib()
374 	*scale_voltage *= calib_graph->dx;  in qcom_vadc_scale_calib()
375 	*scale_voltage = div64_s64(*scale_voltage, calib_graph->dy);  in qcom_vadc_scale_calib()
377 		*scale_voltage += calib_graph->dx;  in qcom_vadc_scale_calib()
392 	voltage = voltage * prescale->den;  in qcom_vadc_scale_volt()
393 	result = div64_s64(voltage, prescale->num);  in qcom_vadc_scale_volt()
429 	u64 temp; /* Temporary variable for do_div */  in qcom_vadc_scale_die_temp()  local
434 		temp = voltage * prescale->den;  in qcom_vadc_scale_die_temp()
435 		do_div(temp, prescale->num * 2);  in qcom_vadc_scale_die_temp()
436 		voltage = temp;  in qcom_vadc_scale_die_temp()
455 	voltage = voltage * prescale->den;  in qcom_vadc_scale_chg_temp()
456 	voltage = div64_s64(voltage, prescale->num);  in qcom_vadc_scale_chg_temp()
470 	s64 voltage, temp, adc_vdd_ref_mv = 1875;  in qcom_vadc_scale_code_voltage_factor()  local
483 	voltage = div64_s64(voltage, data->full_scale_code_volt);  in qcom_vadc_scale_code_voltage_factor()
485 		voltage *= prescale->den;  in qcom_vadc_scale_code_voltage_factor()
486 		temp = prescale->num * factor;  in qcom_vadc_scale_code_voltage_factor()
487 		voltage = div64_s64(voltage, temp);  in qcom_vadc_scale_code_voltage_factor()
500 	s64 resistance = adc_code;  in qcom_vadc7_scale_hw_calib_therm()  local
504 		return -EINVAL;  in qcom_vadc7_scale_hw_calib_therm()
506 	/* (ADC code * R_PULLUP (100Kohm)) / (full_scale_code - ADC code)*/  in qcom_vadc7_scale_hw_calib_therm()
507 	resistance *= R_PU_100K;  in qcom_vadc7_scale_hw_calib_therm()
508 	resistance = div64_s64(resistance, RATIO_MAX_ADC7 - adc_code);  in qcom_vadc7_scale_hw_calib_therm()
512 				 resistance, &result);  in qcom_vadc7_scale_hw_calib_therm()
542 	/* Map voltage to temperature from look-up table */  in qcom_vadc_scale_hw_calib_therm()
566 	int voltage, vtemp0, temp, i;  in qcom_vadc7_scale_hw_calib_die_temp()  local
576 	if (adcmap7_die_temp[ARRAY_SIZE(adcmap7_die_temp) - 1].x <= voltage) {  in qcom_vadc7_scale_hw_calib_die_temp()
585 	vtemp0 = adcmap7_die_temp[i - 1].x;  in qcom_vadc7_scale_hw_calib_die_temp()
586 	voltage = voltage - vtemp0;  in qcom_vadc7_scale_hw_calib_die_temp()
587 	temp = div64_s64(voltage * DIE_TEMP_ADC7_SCALE_FACTOR,  in qcom_vadc7_scale_hw_calib_die_temp()
588 		adcmap7_die_temp[i - 1].y);  in qcom_vadc7_scale_hw_calib_die_temp()
589 	temp += DIE_TEMP_ADC7_SCALE_1 + (DIE_TEMP_ADC7_SCALE_2 * (i - 1));  in qcom_vadc7_scale_hw_calib_die_temp()
590 	*result_mdec = temp;  in qcom_vadc7_scale_hw_calib_die_temp()
602 	*result_mdec = PMIC5_SMB_TEMP_CONSTANT - *result_mdec;  in qcom_vadc_scale_hw_smb_temp()
614 	*result_mdec = PMIC5_CHG_TEMP_SCALE_FACTOR - *result_mdec;  in qcom_vadc_scale_hw_chg5_temp()
644 		return -EINVAL;  in qcom_vadc_scale()
657 		return -EINVAL;  in qcom_adc5_hw_scale()
669 		return -EINVAL;  in qcom_vadc_decimation_from_dt()