drivers/thermal/qcom/tsens-v1.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2019, Linaro Limited
  */

 #include <linux/bitops.h>
 #include <linux/regmap.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include "tsens.h"

 /* ----- SROT ------ */
 #define SROT_HW_VER_OFF	0x0000
 #define SROT_CTRL_OFF		0x0004

 /* ----- TM ------ */
 #define TM_INT_EN_OFF				0x0000
 #define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF	0x0004
 #define TM_Sn_STATUS_OFF			0x0044
 #define TM_TRDY_OFF				0x0084
 #define TM_HIGH_LOW_INT_STATUS_OFF		0x0088
 #define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF	0x0090

 /* eeprom layout data for msm8956/76 (v1) */
 #define MSM8976_BASE0_MASK	0xff
 #define MSM8976_BASE1_MASK	0xff
 #define MSM8976_BASE1_SHIFT	8

 #define MSM8976_S0_P1_MASK	0x3f00
 #define MSM8976_S1_P1_MASK	0x3f00000
 #define MSM8976_S2_P1_MASK	0x3f
 #define MSM8976_S3_P1_MASK	0x3f000
 #define MSM8976_S4_P1_MASK	0x3f00
 #define MSM8976_S5_P1_MASK	0x3f00000
 #define MSM8976_S6_P1_MASK	0x3f
 #define MSM8976_S7_P1_MASK	0x3f000
 #define MSM8976_S8_P1_MASK	0x1f8
 #define MSM8976_S9_P1_MASK	0x1f8000
 #define MSM8976_S10_P1_MASK	0xf8000000
 #define MSM8976_S10_P1_MASK_1	0x1

 #define MSM8976_S0_P2_MASK	0xfc000
 #define MSM8976_S1_P2_MASK	0xfc000000
 #define MSM8976_S2_P2_MASK	0xfc0
 #define MSM8976_S3_P2_MASK	0xfc0000
 #define MSM8976_S4_P2_MASK	0xfc000
 #define MSM8976_S5_P2_MASK	0xfc000000
 #define MSM8976_S6_P2_MASK	0xfc0
 #define MSM8976_S7_P2_MASK	0xfc0000
 #define MSM8976_S8_P2_MASK	0x7e00
 #define MSM8976_S9_P2_MASK	0x7e00000
 #define MSM8976_S10_P2_MASK	0x7e

 #define MSM8976_S0_P1_SHIFT	8
 #define MSM8976_S1_P1_SHIFT	20
 #define MSM8976_S2_P1_SHIFT	0
 #define MSM8976_S3_P1_SHIFT	12
 #define MSM8976_S4_P1_SHIFT	8
 #define MSM8976_S5_P1_SHIFT	20
 #define MSM8976_S6_P1_SHIFT	0
 #define MSM8976_S7_P1_SHIFT	12
 #define MSM8976_S8_P1_SHIFT	3
 #define MSM8976_S9_P1_SHIFT	15
 #define MSM8976_S10_P1_SHIFT	27
 #define MSM8976_S10_P1_SHIFT_1	0

 #define MSM8976_S0_P2_SHIFT	14
 #define MSM8976_S1_P2_SHIFT	26
 #define MSM8976_S2_P2_SHIFT	6
 #define MSM8976_S3_P2_SHIFT	18
 #define MSM8976_S4_P2_SHIFT	14
 #define MSM8976_S5_P2_SHIFT	26
 #define MSM8976_S6_P2_SHIFT	6
 #define MSM8976_S7_P2_SHIFT	18
 #define MSM8976_S8_P2_SHIFT	9
 #define MSM8976_S9_P2_SHIFT	21
 #define MSM8976_S10_P2_SHIFT	1

 #define MSM8976_CAL_SEL_MASK	0x3

 #define MSM8976_CAL_DEGC_PT1	30
 #define MSM8976_CAL_DEGC_PT2	120
 #define MSM8976_SLOPE_FACTOR	1000
 #define MSM8976_SLOPE_DEFAULT	3200

 /* eeprom layout data for qcs404/405 (v1) */
 #define BASE0_MASK	0x000007f8
 #define BASE1_MASK	0x0007f800
 #define BASE0_SHIFT	3
 #define BASE1_SHIFT	11

 #define S0_P1_MASK	0x0000003f
 #define S1_P1_MASK	0x0003f000
 #define S2_P1_MASK	0x3f000000
 #define S3_P1_MASK	0x000003f0
 #define S4_P1_MASK	0x003f0000
 #define S5_P1_MASK	0x0000003f
 #define S6_P1_MASK	0x0003f000
 #define S7_P1_MASK	0x3f000000
 #define S8_P1_MASK	0x000003f0
 #define S9_P1_MASK	0x003f0000

 #define S0_P2_MASK	0x00000fc0
 #define S1_P2_MASK	0x00fc0000
 #define S2_P2_MASK_1_0	0xc0000000
 #define S2_P2_MASK_5_2	0x0000000f
 #define S3_P2_MASK	0x0000fc00
 #define S4_P2_MASK	0x0fc00000
 #define S5_P2_MASK	0x00000fc0
 #define S6_P2_MASK	0x00fc0000
 #define S7_P2_MASK_1_0	0xc0000000
 #define S7_P2_MASK_5_2	0x0000000f
 #define S8_P2_MASK	0x0000fc00
 #define S9_P2_MASK	0x0fc00000

 #define S0_P1_SHIFT	0
 #define S0_P2_SHIFT	6
 #define S1_P1_SHIFT	12
 #define S1_P2_SHIFT	18
 #define S2_P1_SHIFT	24
 #define S2_P2_SHIFT_1_0	30

 #define S2_P2_SHIFT_5_2	0
 #define S3_P1_SHIFT	4
 #define S3_P2_SHIFT	10
 #define S4_P1_SHIFT	16
 #define S4_P2_SHIFT	22

 #define S5_P1_SHIFT	0
 #define S5_P2_SHIFT	6
 #define S6_P1_SHIFT	12
 #define S6_P2_SHIFT	18
 #define S7_P1_SHIFT	24
 #define S7_P2_SHIFT_1_0	30

 #define S7_P2_SHIFT_5_2	0
 #define S8_P1_SHIFT	4
 #define S8_P2_SHIFT	10
 #define S9_P1_SHIFT	16
 #define S9_P2_SHIFT	22

 #define CAL_SEL_MASK	7
 #define CAL_SEL_SHIFT	0

 static void compute_intercept_slope_8976(struct tsens_priv *priv,
 			      u32 *p1, u32 *p2, u32 mode)
 {
 	int i;

 	priv->sensor[0].slope = 3313;
 	priv->sensor[1].slope = 3275;
 	priv->sensor[2].slope = 3320;
 	priv->sensor[3].slope = 3246;
 	priv->sensor[4].slope = 3279;
 	priv->sensor[5].slope = 3257;
 	priv->sensor[6].slope = 3234;
 	priv->sensor[7].slope = 3269;
 	priv->sensor[8].slope = 3255;
 	priv->sensor[9].slope = 3239;
 	priv->sensor[10].slope = 3286;

 	for (i = 0; i < priv->num_sensors; i++) {
 		priv->sensor[i].offset = (p1[i] * MSM8976_SLOPE_FACTOR) -
 				(MSM8976_CAL_DEGC_PT1 *
 				priv->sensor[i].slope);
 	}
 }

 static int calibrate_v1(struct tsens_priv *priv)
 {
 	u32 base0 = 0, base1 = 0;
 	u32 p1[10], p2[10];
 	u32 mode = 0, lsb = 0, msb = 0;
 	u32 *qfprom_cdata;
 	int i;

 	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
 	if (IS_ERR(qfprom_cdata))
 		return PTR_ERR(qfprom_cdata);

 	mode = (qfprom_cdata[4] & CAL_SEL_MASK) >> CAL_SEL_SHIFT;
 	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

 	switch (mode) {
 	case TWO_PT_CALIB:
 		base1 = (qfprom_cdata[4] & BASE1_MASK) >> BASE1_SHIFT;
 		p2[0] = (qfprom_cdata[0] & S0_P2_MASK) >> S0_P2_SHIFT;
 		p2[1] = (qfprom_cdata[0] & S1_P2_MASK) >> S1_P2_SHIFT;
 		/* This value is split over two registers, 2 bits and 4 bits */
 		lsb   = (qfprom_cdata[0] & S2_P2_MASK_1_0) >> S2_P2_SHIFT_1_0;
 		msb   = (qfprom_cdata[1] & S2_P2_MASK_5_2) >> S2_P2_SHIFT_5_2;
 		p2[2] = msb << 2 | lsb;
 		p2[3] = (qfprom_cdata[1] & S3_P2_MASK) >> S3_P2_SHIFT;
 		p2[4] = (qfprom_cdata[1] & S4_P2_MASK) >> S4_P2_SHIFT;
 		p2[5] = (qfprom_cdata[2] & S5_P2_MASK) >> S5_P2_SHIFT;
 		p2[6] = (qfprom_cdata[2] & S6_P2_MASK) >> S6_P2_SHIFT;
 		/* This value is split over two registers, 2 bits and 4 bits */
 		lsb   = (qfprom_cdata[2] & S7_P2_MASK_1_0) >> S7_P2_SHIFT_1_0;
 		msb   = (qfprom_cdata[3] & S7_P2_MASK_5_2) >> S7_P2_SHIFT_5_2;
 		p2[7] = msb << 2 | lsb;
 		p2[8] = (qfprom_cdata[3] & S8_P2_MASK) >> S8_P2_SHIFT;
 		p2[9] = (qfprom_cdata[3] & S9_P2_MASK) >> S9_P2_SHIFT;
 		for (i = 0; i < priv->num_sensors; i++)
 			p2[i] = ((base1 + p2[i]) << 2);
 		/* Fall through */
 	case ONE_PT_CALIB2:
 		base0 = (qfprom_cdata[4] & BASE0_MASK) >> BASE0_SHIFT;
 		p1[0] = (qfprom_cdata[0] & S0_P1_MASK) >> S0_P1_SHIFT;
 		p1[1] = (qfprom_cdata[0] & S1_P1_MASK) >> S1_P1_SHIFT;
 		p1[2] = (qfprom_cdata[0] & S2_P1_MASK) >> S2_P1_SHIFT;
 		p1[3] = (qfprom_cdata[1] & S3_P1_MASK) >> S3_P1_SHIFT;
 		p1[4] = (qfprom_cdata[1] & S4_P1_MASK) >> S4_P1_SHIFT;
 		p1[5] = (qfprom_cdata[2] & S5_P1_MASK) >> S5_P1_SHIFT;
 		p1[6] = (qfprom_cdata[2] & S6_P1_MASK) >> S6_P1_SHIFT;
 		p1[7] = (qfprom_cdata[2] & S7_P1_MASK) >> S7_P1_SHIFT;
 		p1[8] = (qfprom_cdata[3] & S8_P1_MASK) >> S8_P1_SHIFT;
 		p1[9] = (qfprom_cdata[3] & S9_P1_MASK) >> S9_P1_SHIFT;
 		for (i = 0; i < priv->num_sensors; i++)
 			p1[i] = (((base0) + p1[i]) << 2);
 		break;
 	default:
 		for (i = 0; i < priv->num_sensors; i++) {
 			p1[i] = 500;
 			p2[i] = 780;
 		}
 		break;
 	}

 	compute_intercept_slope(priv, p1, p2, mode);
 	kfree(qfprom_cdata);

 	return 0;
 }

 static int calibrate_8976(struct tsens_priv *priv)
 {
 	int base0 = 0, base1 = 0, i;
 	u32 p1[11], p2[11];
 	int mode = 0, tmp = 0;
 	u32 *qfprom_cdata;

 	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
 	if (IS_ERR(qfprom_cdata))
 		return PTR_ERR(qfprom_cdata);

 	mode = (qfprom_cdata[4] & MSM8976_CAL_SEL_MASK);
 	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

 	switch (mode) {
 	case TWO_PT_CALIB:
 		base1 = (qfprom_cdata[2] & MSM8976_BASE1_MASK) >> MSM8976_BASE1_SHIFT;
 		p2[0] = (qfprom_cdata[0] & MSM8976_S0_P2_MASK) >> MSM8976_S0_P2_SHIFT;
 		p2[1] = (qfprom_cdata[0] & MSM8976_S1_P2_MASK) >> MSM8976_S1_P2_SHIFT;
 		p2[2] = (qfprom_cdata[1] & MSM8976_S2_P2_MASK) >> MSM8976_S2_P2_SHIFT;
 		p2[3] = (qfprom_cdata[1] & MSM8976_S3_P2_MASK) >> MSM8976_S3_P2_SHIFT;
 		p2[4] = (qfprom_cdata[2] & MSM8976_S4_P2_MASK) >> MSM8976_S4_P2_SHIFT;
 		p2[5] = (qfprom_cdata[2] & MSM8976_S5_P2_MASK) >> MSM8976_S5_P2_SHIFT;
 		p2[6] = (qfprom_cdata[3] & MSM8976_S6_P2_MASK) >> MSM8976_S6_P2_SHIFT;
 		p2[7] = (qfprom_cdata[3] & MSM8976_S7_P2_MASK) >> MSM8976_S7_P2_SHIFT;
 		p2[8] = (qfprom_cdata[4] & MSM8976_S8_P2_MASK) >> MSM8976_S8_P2_SHIFT;
 		p2[9] = (qfprom_cdata[4] & MSM8976_S9_P2_MASK) >> MSM8976_S9_P2_SHIFT;
 		p2[10] = (qfprom_cdata[5] & MSM8976_S10_P2_MASK) >> MSM8976_S10_P2_SHIFT;

 		for (i = 0; i < priv->num_sensors; i++)
 			p2[i] = ((base1 + p2[i]) << 2);
 		/* Fall through */
 	case ONE_PT_CALIB2:
 		base0 = qfprom_cdata[0] & MSM8976_BASE0_MASK;
 		p1[0] = (qfprom_cdata[0] & MSM8976_S0_P1_MASK) >> MSM8976_S0_P1_SHIFT;
 		p1[1] = (qfprom_cdata[0] & MSM8976_S1_P1_MASK) >> MSM8976_S1_P1_SHIFT;
 		p1[2] = (qfprom_cdata[1] & MSM8976_S2_P1_MASK) >> MSM8976_S2_P1_SHIFT;
 		p1[3] = (qfprom_cdata[1] & MSM8976_S3_P1_MASK) >> MSM8976_S3_P1_SHIFT;
 		p1[4] = (qfprom_cdata[2] & MSM8976_S4_P1_MASK) >> MSM8976_S4_P1_SHIFT;
 		p1[5] = (qfprom_cdata[2] & MSM8976_S5_P1_MASK) >> MSM8976_S5_P1_SHIFT;
 		p1[6] = (qfprom_cdata[3] & MSM8976_S6_P1_MASK) >> MSM8976_S6_P1_SHIFT;
 		p1[7] = (qfprom_cdata[3] & MSM8976_S7_P1_MASK) >> MSM8976_S7_P1_SHIFT;
 		p1[8] = (qfprom_cdata[4] & MSM8976_S8_P1_MASK) >> MSM8976_S8_P1_SHIFT;
 		p1[9] = (qfprom_cdata[4] & MSM8976_S9_P1_MASK) >> MSM8976_S9_P1_SHIFT;
 		p1[10] = (qfprom_cdata[4] & MSM8976_S10_P1_MASK) >> MSM8976_S10_P1_SHIFT;
 		tmp = (qfprom_cdata[5] & MSM8976_S10_P1_MASK_1) << MSM8976_S10_P1_SHIFT_1;
 		p1[10] |= tmp;

 		for (i = 0; i < priv->num_sensors; i++)
 			p1[i] = (((base0) + p1[i]) << 2);
 		break;
 	default:
 		for (i = 0; i < priv->num_sensors; i++) {
 			p1[i] = 500;
 			p2[i] = 780;
 		}
 		break;
 	}

 	compute_intercept_slope_8976(priv, p1, p2, mode);
 	kfree(qfprom_cdata);

 	return 0;
 }

 /* v1.x: msm8956,8976,qcs404,405 */

 static const struct tsens_features tsens_v1_feat = {
 	.ver_major	= VER_1_X,
 	.crit_int	= 0,
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
 };

 static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
 	/* ----- SROT ------ */
 	/* VERSION */
 	[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
 	[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
 	[VER_STEP]  = REG_FIELD(SROT_HW_VER_OFF,  0, 15),
 	/* CTRL_OFFSET */
 	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
 	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),
 	[SENSOR_EN]    = REG_FIELD(SROT_CTRL_OFF, 3, 13),

 	/* ----- TM ------ */
 	/* INTERRUPT ENABLE */
 	[INT_EN]     = REG_FIELD(TM_INT_EN_OFF, 0, 0),

 	/* UPPER/LOWER TEMPERATURE THRESHOLDS */
 	REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH,    TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF,  0,  9),
 	REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH,     TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),

 	/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
 	REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
 	REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR,  TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
 	[LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  0,  0),
 	[LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  1,  1),
 	[LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  2,  2),
 	[LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  3,  3),
 	[LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  4,  4),
 	[LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  5,  5),
 	[LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  6,  6),
 	[LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  7,  7),
 	[UP_INT_STATUS_0]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  8,  8),
 	[UP_INT_STATUS_1]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF,  9,  9),
 	[UP_INT_STATUS_2]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10),
 	[UP_INT_STATUS_3]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11),
 	[UP_INT_STATUS_4]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12),
 	[UP_INT_STATUS_5]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13),
 	[UP_INT_STATUS_6]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14),
 	[UP_INT_STATUS_7]  = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15),

 	/* NO CRITICAL INTERRUPT SUPPORT on v1 */

 	/* Sn_STATUS */
 	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
 	REG_FIELD_FOR_EACH_SENSOR11(VALID,        TM_Sn_STATUS_OFF, 14, 14),
 	/* xxx_STATUS bits: 1 == threshold violated */
 	REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS,   TM_Sn_STATUS_OFF, 10, 10),
 	REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
 	REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
 	/* No CRITICAL field on v1.x */
 	REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS,   TM_Sn_STATUS_OFF, 13, 13),

 	/* TRDY: 1=ready, 0=in progress */
 	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
 };

 static const struct tsens_ops ops_generic_v1 = {
 	.init		= init_common,
 	.calibrate	= calibrate_v1,
 	.get_temp	= get_temp_tsens_valid,
 };

 const struct tsens_plat_data data_tsens_v1 = {
 	.ops		= &ops_generic_v1,
 	.feat		= &tsens_v1_feat,
 	.fields	= tsens_v1_regfields,
 };

 static const struct tsens_ops ops_8976 = {
 	.init		= init_common,
 	.calibrate	= calibrate_8976,
 	.get_temp	= get_temp_tsens_valid,
 };

 /* Valid for both MSM8956 and MSM8976. Sensor ID 3 is unused. */
 const struct tsens_plat_data data_8976 = {
 	.num_sensors	= 11,
 	.ops		= &ops_8976,
 	.hw_ids		= (unsigned int[]){0, 1, 2, 4, 5, 6, 7, 8, 9, 10},
 	.feat		= &tsens_v1_feat,
 	.fields		= tsens_v1_regfields,
 };
	// SPDX-License-Identifier: GPL-2.0
	/*
	* Copyright (c) 2019, Linaro Limited
	*/

	#include <linux/bitops.h>
	#include <linux/regmap.h>
	#include <linux/delay.h>
	#include <linux/slab.h>
	#include "tsens.h"

	/* ----- SROT ------ */
	#define SROT_HW_VER_OFF 0x0000
	#define SROT_CTRL_OFF 0x0004

	/* ----- TM ------ */
	#define TM_INT_EN_OFF 0x0000
	#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
	#define TM_Sn_STATUS_OFF 0x0044
	#define TM_TRDY_OFF 0x0084
	#define TM_HIGH_LOW_INT_STATUS_OFF 0x0088
	#define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090

	/* eeprom layout data for msm8956/76 (v1) */
	#define MSM8976_BASE0_MASK 0xff
	#define MSM8976_BASE1_MASK 0xff
	#define MSM8976_BASE1_SHIFT 8

	#define MSM8976_S0_P1_MASK 0x3f00
	#define MSM8976_S1_P1_MASK 0x3f00000
	#define MSM8976_S2_P1_MASK 0x3f
	#define MSM8976_S3_P1_MASK 0x3f000
	#define MSM8976_S4_P1_MASK 0x3f00
	#define MSM8976_S5_P1_MASK 0x3f00000
	#define MSM8976_S6_P1_MASK 0x3f
	#define MSM8976_S7_P1_MASK 0x3f000
	#define MSM8976_S8_P1_MASK 0x1f8
	#define MSM8976_S9_P1_MASK 0x1f8000
	#define MSM8976_S10_P1_MASK 0xf8000000
	#define MSM8976_S10_P1_MASK_1 0x1

	#define MSM8976_S0_P2_MASK 0xfc000
	#define MSM8976_S1_P2_MASK 0xfc000000
	#define MSM8976_S2_P2_MASK 0xfc0
	#define MSM8976_S3_P2_MASK 0xfc0000
	#define MSM8976_S4_P2_MASK 0xfc000
	#define MSM8976_S5_P2_MASK 0xfc000000
	#define MSM8976_S6_P2_MASK 0xfc0
	#define MSM8976_S7_P2_MASK 0xfc0000
	#define MSM8976_S8_P2_MASK 0x7e00
	#define MSM8976_S9_P2_MASK 0x7e00000
	#define MSM8976_S10_P2_MASK 0x7e

	#define MSM8976_S0_P1_SHIFT 8
	#define MSM8976_S1_P1_SHIFT 20
	#define MSM8976_S2_P1_SHIFT 0
	#define MSM8976_S3_P1_SHIFT 12
	#define MSM8976_S4_P1_SHIFT 8
	#define MSM8976_S5_P1_SHIFT 20
	#define MSM8976_S6_P1_SHIFT 0
	#define MSM8976_S7_P1_SHIFT 12
	#define MSM8976_S8_P1_SHIFT 3
	#define MSM8976_S9_P1_SHIFT 15
	#define MSM8976_S10_P1_SHIFT 27
	#define MSM8976_S10_P1_SHIFT_1 0

	#define MSM8976_S0_P2_SHIFT 14
	#define MSM8976_S1_P2_SHIFT 26
	#define MSM8976_S2_P2_SHIFT 6
	#define MSM8976_S3_P2_SHIFT 18
	#define MSM8976_S4_P2_SHIFT 14
	#define MSM8976_S5_P2_SHIFT 26
	#define MSM8976_S6_P2_SHIFT 6
	#define MSM8976_S7_P2_SHIFT 18
	#define MSM8976_S8_P2_SHIFT 9
	#define MSM8976_S9_P2_SHIFT 21
	#define MSM8976_S10_P2_SHIFT 1

	#define MSM8976_CAL_SEL_MASK 0x3

	#define MSM8976_CAL_DEGC_PT1 30
	#define MSM8976_CAL_DEGC_PT2 120
	#define MSM8976_SLOPE_FACTOR 1000
	#define MSM8976_SLOPE_DEFAULT 3200

	/* eeprom layout data for qcs404/405 (v1) */
	#define BASE0_MASK 0x000007f8
	#define BASE1_MASK 0x0007f800
	#define BASE0_SHIFT 3
	#define BASE1_SHIFT 11

	#define S0_P1_MASK 0x0000003f
	#define S1_P1_MASK 0x0003f000
	#define S2_P1_MASK 0x3f000000
	#define S3_P1_MASK 0x000003f0
	#define S4_P1_MASK 0x003f0000
	#define S5_P1_MASK 0x0000003f
	#define S6_P1_MASK 0x0003f000
	#define S7_P1_MASK 0x3f000000
	#define S8_P1_MASK 0x000003f0
	#define S9_P1_MASK 0x003f0000

	#define S0_P2_MASK 0x00000fc0
	#define S1_P2_MASK 0x00fc0000
	#define S2_P2_MASK_1_0 0xc0000000
	#define S2_P2_MASK_5_2 0x0000000f
	#define S3_P2_MASK 0x0000fc00
	#define S4_P2_MASK 0x0fc00000
	#define S5_P2_MASK 0x00000fc0
	#define S6_P2_MASK 0x00fc0000
	#define S7_P2_MASK_1_0 0xc0000000
	#define S7_P2_MASK_5_2 0x0000000f
	#define S8_P2_MASK 0x0000fc00
	#define S9_P2_MASK 0x0fc00000

	#define S0_P1_SHIFT 0
	#define S0_P2_SHIFT 6
	#define S1_P1_SHIFT 12
	#define S1_P2_SHIFT 18
	#define S2_P1_SHIFT 24
	#define S2_P2_SHIFT_1_0 30

	#define S2_P2_SHIFT_5_2 0
	#define S3_P1_SHIFT 4
	#define S3_P2_SHIFT 10
	#define S4_P1_SHIFT 16
	#define S4_P2_SHIFT 22

	#define S5_P1_SHIFT 0
	#define S5_P2_SHIFT 6
	#define S6_P1_SHIFT 12
	#define S6_P2_SHIFT 18
	#define S7_P1_SHIFT 24
	#define S7_P2_SHIFT_1_0 30

	#define S7_P2_SHIFT_5_2 0
	#define S8_P1_SHIFT 4
	#define S8_P2_SHIFT 10
	#define S9_P1_SHIFT 16
	#define S9_P2_SHIFT 22

	#define CAL_SEL_MASK 7
	#define CAL_SEL_SHIFT 0

	static void compute_intercept_slope_8976(struct tsens_priv *priv,
	u32 p1, u32 p2, u32 mode)
	{
	int i;

	priv->sensor[0].slope = 3313;
	priv->sensor[1].slope = 3275;
	priv->sensor[2].slope = 3320;
	priv->sensor[3].slope = 3246;
	priv->sensor[4].slope = 3279;
	priv->sensor[5].slope = 3257;
	priv->sensor[6].slope = 3234;
	priv->sensor[7].slope = 3269;
	priv->sensor[8].slope = 3255;
	priv->sensor[9].slope = 3239;
	priv->sensor[10].slope = 3286;

	for (i = 0; i < priv->num_sensors; i++) {
	priv->sensor[i].offset = (p1[i] * MSM8976_SLOPE_FACTOR) -
	(MSM8976_CAL_DEGC_PT1 *
	priv->sensor[i].slope);
	}
	}

	static int calibrate_v1(struct tsens_priv *priv)
	{
	u32 base0 = 0, base1 = 0;
	u32 p1[10], p2[10];
	u32 mode = 0, lsb = 0, msb = 0;
	u32 *qfprom_cdata;
	int i;

	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
	if (IS_ERR(qfprom_cdata))
	return PTR_ERR(qfprom_cdata);

	mode = (qfprom_cdata[4] & CAL_SEL_MASK) >> CAL_SEL_SHIFT;
	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

	switch (mode) {
	case TWO_PT_CALIB:
	base1 = (qfprom_cdata[4] & BASE1_MASK) >> BASE1_SHIFT;
	p2[0] = (qfprom_cdata[0] & S0_P2_MASK) >> S0_P2_SHIFT;
	p2[1] = (qfprom_cdata[0] & S1_P2_MASK) >> S1_P2_SHIFT;
	/* This value is split over two registers, 2 bits and 4 bits */
	lsb = (qfprom_cdata[0] & S2_P2_MASK_1_0) >> S2_P2_SHIFT_1_0;
	msb = (qfprom_cdata[1] & S2_P2_MASK_5_2) >> S2_P2_SHIFT_5_2;
	p2[2] = msb << 2 \| lsb;
	p2[3] = (qfprom_cdata[1] & S3_P2_MASK) >> S3_P2_SHIFT;
	p2[4] = (qfprom_cdata[1] & S4_P2_MASK) >> S4_P2_SHIFT;
	p2[5] = (qfprom_cdata[2] & S5_P2_MASK) >> S5_P2_SHIFT;
	p2[6] = (qfprom_cdata[2] & S6_P2_MASK) >> S6_P2_SHIFT;
	/* This value is split over two registers, 2 bits and 4 bits */
	lsb = (qfprom_cdata[2] & S7_P2_MASK_1_0) >> S7_P2_SHIFT_1_0;
	msb = (qfprom_cdata[3] & S7_P2_MASK_5_2) >> S7_P2_SHIFT_5_2;
	p2[7] = msb << 2 \| lsb;
	p2[8] = (qfprom_cdata[3] & S8_P2_MASK) >> S8_P2_SHIFT;
	p2[9] = (qfprom_cdata[3] & S9_P2_MASK) >> S9_P2_SHIFT;
	for (i = 0; i < priv->num_sensors; i++)
	p2[i] = ((base1 + p2[i]) << 2);
	/* Fall through */
	case ONE_PT_CALIB2:
	base0 = (qfprom_cdata[4] & BASE0_MASK) >> BASE0_SHIFT;
	p1[0] = (qfprom_cdata[0] & S0_P1_MASK) >> S0_P1_SHIFT;
	p1[1] = (qfprom_cdata[0] & S1_P1_MASK) >> S1_P1_SHIFT;
	p1[2] = (qfprom_cdata[0] & S2_P1_MASK) >> S2_P1_SHIFT;
	p1[3] = (qfprom_cdata[1] & S3_P1_MASK) >> S3_P1_SHIFT;
	p1[4] = (qfprom_cdata[1] & S4_P1_MASK) >> S4_P1_SHIFT;
	p1[5] = (qfprom_cdata[2] & S5_P1_MASK) >> S5_P1_SHIFT;
	p1[6] = (qfprom_cdata[2] & S6_P1_MASK) >> S6_P1_SHIFT;
	p1[7] = (qfprom_cdata[2] & S7_P1_MASK) >> S7_P1_SHIFT;
	p1[8] = (qfprom_cdata[3] & S8_P1_MASK) >> S8_P1_SHIFT;
	p1[9] = (qfprom_cdata[3] & S9_P1_MASK) >> S9_P1_SHIFT;
	for (i = 0; i < priv->num_sensors; i++)
	p1[i] = (((base0) + p1[i]) << 2);
	break;
	default:
	for (i = 0; i < priv->num_sensors; i++) {
	p1[i] = 500;
	p2[i] = 780;
	}
	break;
	}

	compute_intercept_slope(priv, p1, p2, mode);
	kfree(qfprom_cdata);

	return 0;
	}

	static int calibrate_8976(struct tsens_priv *priv)
	{
	int base0 = 0, base1 = 0, i;
	u32 p1[11], p2[11];
	int mode = 0, tmp = 0;
	u32 *qfprom_cdata;

	qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
	if (IS_ERR(qfprom_cdata))
	return PTR_ERR(qfprom_cdata);

	mode = (qfprom_cdata[4] & MSM8976_CAL_SEL_MASK);
	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

	switch (mode) {
	case TWO_PT_CALIB:
	base1 = (qfprom_cdata[2] & MSM8976_BASE1_MASK) >> MSM8976_BASE1_SHIFT;
	p2[0] = (qfprom_cdata[0] & MSM8976_S0_P2_MASK) >> MSM8976_S0_P2_SHIFT;
	p2[1] = (qfprom_cdata[0] & MSM8976_S1_P2_MASK) >> MSM8976_S1_P2_SHIFT;
	p2[2] = (qfprom_cdata[1] & MSM8976_S2_P2_MASK) >> MSM8976_S2_P2_SHIFT;
	p2[3] = (qfprom_cdata[1] & MSM8976_S3_P2_MASK) >> MSM8976_S3_P2_SHIFT;
	p2[4] = (qfprom_cdata[2] & MSM8976_S4_P2_MASK) >> MSM8976_S4_P2_SHIFT;
	p2[5] = (qfprom_cdata[2] & MSM8976_S5_P2_MASK) >> MSM8976_S5_P2_SHIFT;
	p2[6] = (qfprom_cdata[3] & MSM8976_S6_P2_MASK) >> MSM8976_S6_P2_SHIFT;
	p2[7] = (qfprom_cdata[3] & MSM8976_S7_P2_MASK) >> MSM8976_S7_P2_SHIFT;
	p2[8] = (qfprom_cdata[4] & MSM8976_S8_P2_MASK) >> MSM8976_S8_P2_SHIFT;
	p2[9] = (qfprom_cdata[4] & MSM8976_S9_P2_MASK) >> MSM8976_S9_P2_SHIFT;
	p2[10] = (qfprom_cdata[5] & MSM8976_S10_P2_MASK) >> MSM8976_S10_P2_SHIFT;

	for (i = 0; i < priv->num_sensors; i++)
	p2[i] = ((base1 + p2[i]) << 2);
	/* Fall through */
	case ONE_PT_CALIB2:
	base0 = qfprom_cdata[0] & MSM8976_BASE0_MASK;
	p1[0] = (qfprom_cdata[0] & MSM8976_S0_P1_MASK) >> MSM8976_S0_P1_SHIFT;
	p1[1] = (qfprom_cdata[0] & MSM8976_S1_P1_MASK) >> MSM8976_S1_P1_SHIFT;
	p1[2] = (qfprom_cdata[1] & MSM8976_S2_P1_MASK) >> MSM8976_S2_P1_SHIFT;
	p1[3] = (qfprom_cdata[1] & MSM8976_S3_P1_MASK) >> MSM8976_S3_P1_SHIFT;
	p1[4] = (qfprom_cdata[2] & MSM8976_S4_P1_MASK) >> MSM8976_S4_P1_SHIFT;
	p1[5] = (qfprom_cdata[2] & MSM8976_S5_P1_MASK) >> MSM8976_S5_P1_SHIFT;
	p1[6] = (qfprom_cdata[3] & MSM8976_S6_P1_MASK) >> MSM8976_S6_P1_SHIFT;
	p1[7] = (qfprom_cdata[3] & MSM8976_S7_P1_MASK) >> MSM8976_S7_P1_SHIFT;
	p1[8] = (qfprom_cdata[4] & MSM8976_S8_P1_MASK) >> MSM8976_S8_P1_SHIFT;
	p1[9] = (qfprom_cdata[4] & MSM8976_S9_P1_MASK) >> MSM8976_S9_P1_SHIFT;
	p1[10] = (qfprom_cdata[4] & MSM8976_S10_P1_MASK) >> MSM8976_S10_P1_SHIFT;
	tmp = (qfprom_cdata[5] & MSM8976_S10_P1_MASK_1) << MSM8976_S10_P1_SHIFT_1;
	p1[10] \|= tmp;

	for (i = 0; i < priv->num_sensors; i++)
	p1[i] = (((base0) + p1[i]) << 2);
	break;
	default:
	for (i = 0; i < priv->num_sensors; i++) {
	p1[i] = 500;
	p2[i] = 780;
	}
	break;
	}

	compute_intercept_slope_8976(priv, p1, p2, mode);
	kfree(qfprom_cdata);

	return 0;
	}

	/* v1.x: msm8956,8976,qcs404,405 */

	static const struct tsens_features tsens_v1_feat = {
	.ver_major = VER_1_X,
	.crit_int = 0,
	.adc = 1,
	.srot_split = 1,
	.max_sensors = 11,
	};

	static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
	/* ----- SROT ------ */
	/* VERSION */
	[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
	[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
	[VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15),
	/* CTRL_OFFSET */
	[TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),
	[SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13),

	/* ----- TM ------ */
	/* INTERRUPT ENABLE */
	[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),

	/* UPPER/LOWER TEMPERATURE THRESHOLDS */
	REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9),
	REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),

	/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
	REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
	REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
	[LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 0, 0),
	[LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 1, 1),
	[LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 2, 2),
	[LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 3, 3),
	[LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 4, 4),
	[LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 5, 5),
	[LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 6, 6),
	[LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 7, 7),
	[UP_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 8, 8),
	[UP_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 9, 9),
	[UP_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10),
	[UP_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11),
	[UP_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12),
	[UP_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13),
	[UP_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14),
	[UP_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15),

	/* NO CRITICAL INTERRUPT SUPPORT on v1 */

	/* Sn_STATUS */
	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
	REG_FIELD_FOR_EACH_SENSOR11(VALID, TM_Sn_STATUS_OFF, 14, 14),
	/* xxx_STATUS bits: 1 == threshold violated */
	REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10),
	REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
	REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
	/* No CRITICAL field on v1.x */
	REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13),

	/* TRDY: 1=ready, 0=in progress */
	[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
	};

	static const struct tsens_ops ops_generic_v1 = {
	.init = init_common,
	.calibrate = calibrate_v1,
	.get_temp = get_temp_tsens_valid,
	};

	const struct tsens_plat_data data_tsens_v1 = {
	.ops = &ops_generic_v1,
	.feat = &tsens_v1_feat,
	.fields = tsens_v1_regfields,
	};

	static const struct tsens_ops ops_8976 = {
	.init = init_common,
	.calibrate = calibrate_8976,
	.get_temp = get_temp_tsens_valid,
	};

	/* Valid for both MSM8956 and MSM8976. Sensor ID 3 is unused. */
	const struct tsens_plat_data data_8976 = {
	.num_sensors = 11,
	.ops = &ops_8976,
	.hw_ids = (unsigned int[]){0, 1, 2, 4, 5, 6, 7, 8, 9, 10},
	.feat = &tsens_v1_feat,
	.fields = tsens_v1_regfields,
	};