drivers/thermal/qcom/tsens-v0_1.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
  */

 #include <linux/platform_device.h>
 #include "tsens.h"

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

 /* ----- TM ------ */
 #define TM_INT_EN_OFF				0x0000
 #define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF	0x0004
 #define TM_Sn_STATUS_OFF			0x0030
 #define TM_TRDY_OFF				0x005c

 /* eeprom layout data for 8916 */
 #define MSM8916_BASE0_MASK	0x0000007f
 #define MSM8916_BASE1_MASK	0xfe000000
 #define MSM8916_BASE0_SHIFT	0
 #define MSM8916_BASE1_SHIFT	25

 #define MSM8916_S0_P1_MASK	0x00000f80
 #define MSM8916_S1_P1_MASK	0x003e0000
 #define MSM8916_S2_P1_MASK	0xf8000000
 #define MSM8916_S3_P1_MASK	0x000003e0
 #define MSM8916_S4_P1_MASK	0x000f8000

 #define MSM8916_S0_P2_MASK	0x0001f000
 #define MSM8916_S1_P2_MASK	0x07c00000
 #define MSM8916_S2_P2_MASK	0x0000001f
 #define MSM8916_S3_P2_MASK	0x00007c00
 #define MSM8916_S4_P2_MASK	0x01f00000

 #define MSM8916_S0_P1_SHIFT	7
 #define MSM8916_S1_P1_SHIFT	17
 #define MSM8916_S2_P1_SHIFT	27
 #define MSM8916_S3_P1_SHIFT	5
 #define MSM8916_S4_P1_SHIFT	15

 #define MSM8916_S0_P2_SHIFT	12
 #define MSM8916_S1_P2_SHIFT	22
 #define MSM8916_S2_P2_SHIFT	0
 #define MSM8916_S3_P2_SHIFT	10
 #define MSM8916_S4_P2_SHIFT	20

 #define MSM8916_CAL_SEL_MASK	0xe0000000
 #define MSM8916_CAL_SEL_SHIFT	29

 /* eeprom layout data for 8974 */
 #define BASE1_MASK		0xff
 #define S0_P1_MASK		0x3f00
 #define S1_P1_MASK		0xfc000
 #define S2_P1_MASK		0x3f00000
 #define S3_P1_MASK		0xfc000000
 #define S4_P1_MASK		0x3f
 #define S5_P1_MASK		0xfc0
 #define S6_P1_MASK		0x3f000
 #define S7_P1_MASK		0xfc0000
 #define S8_P1_MASK		0x3f000000
 #define S8_P1_MASK_BKP		0x3f
 #define S9_P1_MASK		0x3f
 #define S9_P1_MASK_BKP		0xfc0
 #define S10_P1_MASK		0xfc0
 #define S10_P1_MASK_BKP		0x3f000
 #define CAL_SEL_0_1		0xc0000000
 #define CAL_SEL_2		0x40000000
 #define CAL_SEL_SHIFT		30
 #define CAL_SEL_SHIFT_2		28

 #define S0_P1_SHIFT		8
 #define S1_P1_SHIFT		14
 #define S2_P1_SHIFT		20
 #define S3_P1_SHIFT		26
 #define S5_P1_SHIFT		6
 #define S6_P1_SHIFT		12
 #define S7_P1_SHIFT		18
 #define S8_P1_SHIFT		24
 #define S9_P1_BKP_SHIFT		6
 #define S10_P1_SHIFT		6
 #define S10_P1_BKP_SHIFT	12

 #define BASE2_SHIFT		12
 #define BASE2_BKP_SHIFT		18
 #define S0_P2_SHIFT		20
 #define S0_P2_BKP_SHIFT		26
 #define S1_P2_SHIFT		26
 #define S2_P2_BKP_SHIFT		6
 #define S3_P2_SHIFT		6
 #define S3_P2_BKP_SHIFT		12
 #define S4_P2_SHIFT		12
 #define S4_P2_BKP_SHIFT		18
 #define S5_P2_SHIFT		18
 #define S5_P2_BKP_SHIFT		24
 #define S6_P2_SHIFT		24
 #define S7_P2_BKP_SHIFT		6
 #define S8_P2_SHIFT		6
 #define S8_P2_BKP_SHIFT		12
 #define S9_P2_SHIFT		12
 #define S9_P2_BKP_SHIFT		18
 #define S10_P2_SHIFT		18
 #define S10_P2_BKP_SHIFT	24

 #define BASE2_MASK		0xff000
 #define BASE2_BKP_MASK		0xfc0000
 #define S0_P2_MASK		0x3f00000
 #define S0_P2_BKP_MASK		0xfc000000
 #define S1_P2_MASK		0xfc000000
 #define S1_P2_BKP_MASK		0x3f
 #define S2_P2_MASK		0x3f
 #define S2_P2_BKP_MASK		0xfc0
 #define S3_P2_MASK		0xfc0
 #define S3_P2_BKP_MASK		0x3f000
 #define S4_P2_MASK		0x3f000
 #define S4_P2_BKP_MASK		0xfc0000
 #define S5_P2_MASK		0xfc0000
 #define S5_P2_BKP_MASK		0x3f000000
 #define S6_P2_MASK		0x3f000000
 #define S6_P2_BKP_MASK		0x3f
 #define S7_P2_MASK		0x3f
 #define S7_P2_BKP_MASK		0xfc0
 #define S8_P2_MASK		0xfc0
 #define S8_P2_BKP_MASK		0x3f000
 #define S9_P2_MASK		0x3f000
 #define S9_P2_BKP_MASK		0xfc0000
 #define S10_P2_MASK		0xfc0000
 #define S10_P2_BKP_MASK		0x3f000000

 #define BKP_SEL			0x3
 #define BKP_REDUN_SEL		0xe0000000
 #define BKP_REDUN_SHIFT		29

 #define BIT_APPEND		0x3

 static int calibrate_8916(struct tsens_priv *priv)
 {
 	int base0 = 0, base1 = 0, i;
 	u32 p1[5], p2[5];
 	int mode = 0;
 	u32 *qfprom_cdata, *qfprom_csel;

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

 	qfprom_csel = (u32 *)qfprom_read(priv->dev, "calib_sel");
 	if (IS_ERR(qfprom_csel)) {
 		kfree(qfprom_cdata);
 		return PTR_ERR(qfprom_csel);
 	}

 	mode = (qfprom_csel[0] & MSM8916_CAL_SEL_MASK) >> MSM8916_CAL_SEL_SHIFT;
 	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

 	switch (mode) {
 	case TWO_PT_CALIB:
 		base1 = (qfprom_cdata[1] & MSM8916_BASE1_MASK) >> MSM8916_BASE1_SHIFT;
 		p2[0] = (qfprom_cdata[0] & MSM8916_S0_P2_MASK) >> MSM8916_S0_P2_SHIFT;
 		p2[1] = (qfprom_cdata[0] & MSM8916_S1_P2_MASK) >> MSM8916_S1_P2_SHIFT;
 		p2[2] = (qfprom_cdata[1] & MSM8916_S2_P2_MASK) >> MSM8916_S2_P2_SHIFT;
 		p2[3] = (qfprom_cdata[1] & MSM8916_S3_P2_MASK) >> MSM8916_S3_P2_SHIFT;
 		p2[4] = (qfprom_cdata[1] & MSM8916_S4_P2_MASK) >> MSM8916_S4_P2_SHIFT;
 		for (i = 0; i < priv->num_sensors; i++)
 			p2[i] = ((base1 + p2[i]) << 3);
 		/* Fall through */
 	case ONE_PT_CALIB2:
 		base0 = (qfprom_cdata[0] & MSM8916_BASE0_MASK);
 		p1[0] = (qfprom_cdata[0] & MSM8916_S0_P1_MASK) >> MSM8916_S0_P1_SHIFT;
 		p1[1] = (qfprom_cdata[0] & MSM8916_S1_P1_MASK) >> MSM8916_S1_P1_SHIFT;
 		p1[2] = (qfprom_cdata[0] & MSM8916_S2_P1_MASK) >> MSM8916_S2_P1_SHIFT;
 		p1[3] = (qfprom_cdata[1] & MSM8916_S3_P1_MASK) >> MSM8916_S3_P1_SHIFT;
 		p1[4] = (qfprom_cdata[1] & MSM8916_S4_P1_MASK) >> MSM8916_S4_P1_SHIFT;
 		for (i = 0; i < priv->num_sensors; i++)
 			p1[i] = (((base0) + p1[i]) << 3);
 		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);
 	kfree(qfprom_csel);

 	return 0;
 }

 static int calibrate_8974(struct tsens_priv *priv)
 {
 	int base1 = 0, base2 = 0, i;
 	u32 p1[11], p2[11];
 	int mode = 0;
 	u32 *calib, *bkp;
 	u32 calib_redun_sel;

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

 	bkp = (u32 *)qfprom_read(priv->dev, "calib_backup");
 	if (IS_ERR(bkp)) {
 		kfree(calib);
 		return PTR_ERR(bkp);
 	}

 	calib_redun_sel =  bkp[1] & BKP_REDUN_SEL;
 	calib_redun_sel >>= BKP_REDUN_SHIFT;

 	if (calib_redun_sel == BKP_SEL) {
 		mode = (calib[4] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
 		mode |= (calib[5] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;

 		switch (mode) {
 		case TWO_PT_CALIB:
 			base2 = (bkp[2] & BASE2_BKP_MASK) >> BASE2_BKP_SHIFT;
 			p2[0] = (bkp[2] & S0_P2_BKP_MASK) >> S0_P2_BKP_SHIFT;
 			p2[1] = (bkp[3] & S1_P2_BKP_MASK);
 			p2[2] = (bkp[3] & S2_P2_BKP_MASK) >> S2_P2_BKP_SHIFT;
 			p2[3] = (bkp[3] & S3_P2_BKP_MASK) >> S3_P2_BKP_SHIFT;
 			p2[4] = (bkp[3] & S4_P2_BKP_MASK) >> S4_P2_BKP_SHIFT;
 			p2[5] = (calib[4] & S5_P2_BKP_MASK) >> S5_P2_BKP_SHIFT;
 			p2[6] = (calib[5] & S6_P2_BKP_MASK);
 			p2[7] = (calib[5] & S7_P2_BKP_MASK) >> S7_P2_BKP_SHIFT;
 			p2[8] = (calib[5] & S8_P2_BKP_MASK) >> S8_P2_BKP_SHIFT;
 			p2[9] = (calib[5] & S9_P2_BKP_MASK) >> S9_P2_BKP_SHIFT;
 			p2[10] = (calib[5] & S10_P2_BKP_MASK) >> S10_P2_BKP_SHIFT;
 			/* Fall through */
 		case ONE_PT_CALIB:
 		case ONE_PT_CALIB2:
 			base1 = bkp[0] & BASE1_MASK;
 			p1[0] = (bkp[0] & S0_P1_MASK) >> S0_P1_SHIFT;
 			p1[1] = (bkp[0] & S1_P1_MASK) >> S1_P1_SHIFT;
 			p1[2] = (bkp[0] & S2_P1_MASK) >> S2_P1_SHIFT;
 			p1[3] = (bkp[0] & S3_P1_MASK) >> S3_P1_SHIFT;
 			p1[4] = (bkp[1] & S4_P1_MASK);
 			p1[5] = (bkp[1] & S5_P1_MASK) >> S5_P1_SHIFT;
 			p1[6] = (bkp[1] & S6_P1_MASK) >> S6_P1_SHIFT;
 			p1[7] = (bkp[1] & S7_P1_MASK) >> S7_P1_SHIFT;
 			p1[8] = (bkp[2] & S8_P1_MASK_BKP) >> S8_P1_SHIFT;
 			p1[9] = (bkp[2] & S9_P1_MASK_BKP) >> S9_P1_BKP_SHIFT;
 			p1[10] = (bkp[2] & S10_P1_MASK_BKP) >> S10_P1_BKP_SHIFT;
 			break;
 		}
 	} else {
 		mode = (calib[1] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
 		mode |= (calib[3] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;

 		switch (mode) {
 		case TWO_PT_CALIB:
 			base2 = (calib[2] & BASE2_MASK) >> BASE2_SHIFT;
 			p2[0] = (calib[2] & S0_P2_MASK) >> S0_P2_SHIFT;
 			p2[1] = (calib[2] & S1_P2_MASK) >> S1_P2_SHIFT;
 			p2[2] = (calib[3] & S2_P2_MASK);
 			p2[3] = (calib[3] & S3_P2_MASK) >> S3_P2_SHIFT;
 			p2[4] = (calib[3] & S4_P2_MASK) >> S4_P2_SHIFT;
 			p2[5] = (calib[3] & S5_P2_MASK) >> S5_P2_SHIFT;
 			p2[6] = (calib[3] & S6_P2_MASK) >> S6_P2_SHIFT;
 			p2[7] = (calib[4] & S7_P2_MASK);
 			p2[8] = (calib[4] & S8_P2_MASK) >> S8_P2_SHIFT;
 			p2[9] = (calib[4] & S9_P2_MASK) >> S9_P2_SHIFT;
 			p2[10] = (calib[4] & S10_P2_MASK) >> S10_P2_SHIFT;
 			/* Fall through */
 		case ONE_PT_CALIB:
 		case ONE_PT_CALIB2:
 			base1 = calib[0] & BASE1_MASK;
 			p1[0] = (calib[0] & S0_P1_MASK) >> S0_P1_SHIFT;
 			p1[1] = (calib[0] & S1_P1_MASK) >> S1_P1_SHIFT;
 			p1[2] = (calib[0] & S2_P1_MASK) >> S2_P1_SHIFT;
 			p1[3] = (calib[0] & S3_P1_MASK) >> S3_P1_SHIFT;
 			p1[4] = (calib[1] & S4_P1_MASK);
 			p1[5] = (calib[1] & S5_P1_MASK) >> S5_P1_SHIFT;
 			p1[6] = (calib[1] & S6_P1_MASK) >> S6_P1_SHIFT;
 			p1[7] = (calib[1] & S7_P1_MASK) >> S7_P1_SHIFT;
 			p1[8] = (calib[1] & S8_P1_MASK) >> S8_P1_SHIFT;
 			p1[9] = (calib[2] & S9_P1_MASK);
 			p1[10] = (calib[2] & S10_P1_MASK) >> S10_P1_SHIFT;
 			break;
 		}
 	}

 	switch (mode) {
 	case ONE_PT_CALIB:
 		for (i = 0; i < priv->num_sensors; i++)
 			p1[i] += (base1 << 2) | BIT_APPEND;
 		break;
 	case TWO_PT_CALIB:
 		for (i = 0; i < priv->num_sensors; i++) {
 			p2[i] += base2;
 			p2[i] <<= 2;
 			p2[i] |= BIT_APPEND;
 		}
 		/* Fall through */
 	case ONE_PT_CALIB2:
 		for (i = 0; i < priv->num_sensors; i++) {
 			p1[i] += base1;
 			p1[i] <<= 2;
 			p1[i] |= BIT_APPEND;
 		}
 		break;
 	default:
 		for (i = 0; i < priv->num_sensors; i++)
 			p2[i] = 780;
 		p1[0] = 502;
 		p1[1] = 509;
 		p1[2] = 503;
 		p1[3] = 509;
 		p1[4] = 505;
 		p1[5] = 509;
 		p1[6] = 507;
 		p1[7] = 510;
 		p1[8] = 508;
 		p1[9] = 509;
 		p1[10] = 508;
 		break;
 	}

 	compute_intercept_slope(priv, p1, p2, mode);
 	kfree(calib);
 	kfree(bkp);

 	return 0;
 }

 /* v0.1: 8916, 8974 */

 static struct tsens_features tsens_v0_1_feat = {
 	.ver_major	= VER_0_1,
 	.crit_int	= 0,
 	.adc		= 1,
 	.srot_split	= 1,
 	.max_sensors	= 11,
 };

 static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
 	/* ----- SROT ------ */
 	/* No VERSION information */

 	/* CTRL_OFFSET */
 	[TSENS_EN]     = REG_FIELD(SROT_CTRL_OFF, 0,  0),
 	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1,  1),

 	/* ----- 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),

 	/* NO CRITICAL INTERRUPT SUPPORT on v0.1 */

 	/* Sn_STATUS */
 	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP,    TM_Sn_STATUS_OFF,  0,  9),
 	/* No VALID field on v0.1 */
 	/* 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 v0.1 */
 	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_8916 = {
 	.init		= init_common,
 	.calibrate	= calibrate_8916,
 	.get_temp	= get_temp_common,
 };

 struct tsens_plat_data data_8916 = {
 	.num_sensors	= 5,
 	.ops		= &ops_8916,
 	.hw_ids		= (unsigned int []){0, 1, 2, 4, 5 },

 	.feat		= &tsens_v0_1_feat,
 	.fields	= tsens_v0_1_regfields,
 };

 static const struct tsens_ops ops_8974 = {
 	.init		= init_common,
 	.calibrate	= calibrate_8974,
 	.get_temp	= get_temp_common,
 };

 struct tsens_plat_data data_8974 = {
 	.num_sensors	= 11,
 	.ops		= &ops_8974,
 	.feat		= &tsens_v0_1_feat,
 	.fields	= tsens_v0_1_regfields,
 };
	// SPDX-License-Identifier: GPL-2.0
	/*
	* Copyright (c) 2015, The Linux Foundation. All rights reserved.
	*/

	#include <linux/platform_device.h>
	#include "tsens.h"

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

	/* ----- TM ------ */
	#define TM_INT_EN_OFF 0x0000
	#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
	#define TM_Sn_STATUS_OFF 0x0030
	#define TM_TRDY_OFF 0x005c

	/* eeprom layout data for 8916 */
	#define MSM8916_BASE0_MASK 0x0000007f
	#define MSM8916_BASE1_MASK 0xfe000000
	#define MSM8916_BASE0_SHIFT 0
	#define MSM8916_BASE1_SHIFT 25

	#define MSM8916_S0_P1_MASK 0x00000f80
	#define MSM8916_S1_P1_MASK 0x003e0000
	#define MSM8916_S2_P1_MASK 0xf8000000
	#define MSM8916_S3_P1_MASK 0x000003e0
	#define MSM8916_S4_P1_MASK 0x000f8000

	#define MSM8916_S0_P2_MASK 0x0001f000
	#define MSM8916_S1_P2_MASK 0x07c00000
	#define MSM8916_S2_P2_MASK 0x0000001f
	#define MSM8916_S3_P2_MASK 0x00007c00
	#define MSM8916_S4_P2_MASK 0x01f00000

	#define MSM8916_S0_P1_SHIFT 7
	#define MSM8916_S1_P1_SHIFT 17
	#define MSM8916_S2_P1_SHIFT 27
	#define MSM8916_S3_P1_SHIFT 5
	#define MSM8916_S4_P1_SHIFT 15

	#define MSM8916_S0_P2_SHIFT 12
	#define MSM8916_S1_P2_SHIFT 22
	#define MSM8916_S2_P2_SHIFT 0
	#define MSM8916_S3_P2_SHIFT 10
	#define MSM8916_S4_P2_SHIFT 20

	#define MSM8916_CAL_SEL_MASK 0xe0000000
	#define MSM8916_CAL_SEL_SHIFT 29

	/* eeprom layout data for 8974 */
	#define BASE1_MASK 0xff
	#define S0_P1_MASK 0x3f00
	#define S1_P1_MASK 0xfc000
	#define S2_P1_MASK 0x3f00000
	#define S3_P1_MASK 0xfc000000
	#define S4_P1_MASK 0x3f
	#define S5_P1_MASK 0xfc0
	#define S6_P1_MASK 0x3f000
	#define S7_P1_MASK 0xfc0000
	#define S8_P1_MASK 0x3f000000
	#define S8_P1_MASK_BKP 0x3f
	#define S9_P1_MASK 0x3f
	#define S9_P1_MASK_BKP 0xfc0
	#define S10_P1_MASK 0xfc0
	#define S10_P1_MASK_BKP 0x3f000
	#define CAL_SEL_0_1 0xc0000000
	#define CAL_SEL_2 0x40000000
	#define CAL_SEL_SHIFT 30
	#define CAL_SEL_SHIFT_2 28

	#define S0_P1_SHIFT 8
	#define S1_P1_SHIFT 14
	#define S2_P1_SHIFT 20
	#define S3_P1_SHIFT 26
	#define S5_P1_SHIFT 6
	#define S6_P1_SHIFT 12
	#define S7_P1_SHIFT 18
	#define S8_P1_SHIFT 24
	#define S9_P1_BKP_SHIFT 6
	#define S10_P1_SHIFT 6
	#define S10_P1_BKP_SHIFT 12

	#define BASE2_SHIFT 12
	#define BASE2_BKP_SHIFT 18
	#define S0_P2_SHIFT 20
	#define S0_P2_BKP_SHIFT 26
	#define S1_P2_SHIFT 26
	#define S2_P2_BKP_SHIFT 6
	#define S3_P2_SHIFT 6
	#define S3_P2_BKP_SHIFT 12
	#define S4_P2_SHIFT 12
	#define S4_P2_BKP_SHIFT 18
	#define S5_P2_SHIFT 18
	#define S5_P2_BKP_SHIFT 24
	#define S6_P2_SHIFT 24
	#define S7_P2_BKP_SHIFT 6
	#define S8_P2_SHIFT 6
	#define S8_P2_BKP_SHIFT 12
	#define S9_P2_SHIFT 12
	#define S9_P2_BKP_SHIFT 18
	#define S10_P2_SHIFT 18
	#define S10_P2_BKP_SHIFT 24

	#define BASE2_MASK 0xff000
	#define BASE2_BKP_MASK 0xfc0000
	#define S0_P2_MASK 0x3f00000
	#define S0_P2_BKP_MASK 0xfc000000
	#define S1_P2_MASK 0xfc000000
	#define S1_P2_BKP_MASK 0x3f
	#define S2_P2_MASK 0x3f
	#define S2_P2_BKP_MASK 0xfc0
	#define S3_P2_MASK 0xfc0
	#define S3_P2_BKP_MASK 0x3f000
	#define S4_P2_MASK 0x3f000
	#define S4_P2_BKP_MASK 0xfc0000
	#define S5_P2_MASK 0xfc0000
	#define S5_P2_BKP_MASK 0x3f000000
	#define S6_P2_MASK 0x3f000000
	#define S6_P2_BKP_MASK 0x3f
	#define S7_P2_MASK 0x3f
	#define S7_P2_BKP_MASK 0xfc0
	#define S8_P2_MASK 0xfc0
	#define S8_P2_BKP_MASK 0x3f000
	#define S9_P2_MASK 0x3f000
	#define S9_P2_BKP_MASK 0xfc0000
	#define S10_P2_MASK 0xfc0000
	#define S10_P2_BKP_MASK 0x3f000000

	#define BKP_SEL 0x3
	#define BKP_REDUN_SEL 0xe0000000
	#define BKP_REDUN_SHIFT 29

	#define BIT_APPEND 0x3

	static int calibrate_8916(struct tsens_priv *priv)
	{
	int base0 = 0, base1 = 0, i;
	u32 p1[5], p2[5];
	int mode = 0;
	u32 qfprom_cdata, qfprom_csel;

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

	qfprom_csel = (u32 *)qfprom_read(priv->dev, "calib_sel");
	if (IS_ERR(qfprom_csel)) {
	kfree(qfprom_cdata);
	return PTR_ERR(qfprom_csel);
	}

	mode = (qfprom_csel[0] & MSM8916_CAL_SEL_MASK) >> MSM8916_CAL_SEL_SHIFT;
	dev_dbg(priv->dev, "calibration mode is %d\n", mode);

	switch (mode) {
	case TWO_PT_CALIB:
	base1 = (qfprom_cdata[1] & MSM8916_BASE1_MASK) >> MSM8916_BASE1_SHIFT;
	p2[0] = (qfprom_cdata[0] & MSM8916_S0_P2_MASK) >> MSM8916_S0_P2_SHIFT;
	p2[1] = (qfprom_cdata[0] & MSM8916_S1_P2_MASK) >> MSM8916_S1_P2_SHIFT;
	p2[2] = (qfprom_cdata[1] & MSM8916_S2_P2_MASK) >> MSM8916_S2_P2_SHIFT;
	p2[3] = (qfprom_cdata[1] & MSM8916_S3_P2_MASK) >> MSM8916_S3_P2_SHIFT;
	p2[4] = (qfprom_cdata[1] & MSM8916_S4_P2_MASK) >> MSM8916_S4_P2_SHIFT;
	for (i = 0; i < priv->num_sensors; i++)
	p2[i] = ((base1 + p2[i]) << 3);
	/* Fall through */
	case ONE_PT_CALIB2:
	base0 = (qfprom_cdata[0] & MSM8916_BASE0_MASK);
	p1[0] = (qfprom_cdata[0] & MSM8916_S0_P1_MASK) >> MSM8916_S0_P1_SHIFT;
	p1[1] = (qfprom_cdata[0] & MSM8916_S1_P1_MASK) >> MSM8916_S1_P1_SHIFT;
	p1[2] = (qfprom_cdata[0] & MSM8916_S2_P1_MASK) >> MSM8916_S2_P1_SHIFT;
	p1[3] = (qfprom_cdata[1] & MSM8916_S3_P1_MASK) >> MSM8916_S3_P1_SHIFT;
	p1[4] = (qfprom_cdata[1] & MSM8916_S4_P1_MASK) >> MSM8916_S4_P1_SHIFT;
	for (i = 0; i < priv->num_sensors; i++)
	p1[i] = (((base0) + p1[i]) << 3);
	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);
	kfree(qfprom_csel);

	return 0;
	}

	static int calibrate_8974(struct tsens_priv *priv)
	{
	int base1 = 0, base2 = 0, i;
	u32 p1[11], p2[11];
	int mode = 0;
	u32 calib, bkp;
	u32 calib_redun_sel;

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

	bkp = (u32 *)qfprom_read(priv->dev, "calib_backup");
	if (IS_ERR(bkp)) {
	kfree(calib);
	return PTR_ERR(bkp);
	}

	calib_redun_sel = bkp[1] & BKP_REDUN_SEL;
	calib_redun_sel >>= BKP_REDUN_SHIFT;

	if (calib_redun_sel == BKP_SEL) {
	mode = (calib[4] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
	mode \|= (calib[5] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;

	switch (mode) {
	case TWO_PT_CALIB:
	base2 = (bkp[2] & BASE2_BKP_MASK) >> BASE2_BKP_SHIFT;
	p2[0] = (bkp[2] & S0_P2_BKP_MASK) >> S0_P2_BKP_SHIFT;
	p2[1] = (bkp[3] & S1_P2_BKP_MASK);
	p2[2] = (bkp[3] & S2_P2_BKP_MASK) >> S2_P2_BKP_SHIFT;
	p2[3] = (bkp[3] & S3_P2_BKP_MASK) >> S3_P2_BKP_SHIFT;
	p2[4] = (bkp[3] & S4_P2_BKP_MASK) >> S4_P2_BKP_SHIFT;
	p2[5] = (calib[4] & S5_P2_BKP_MASK) >> S5_P2_BKP_SHIFT;
	p2[6] = (calib[5] & S6_P2_BKP_MASK);
	p2[7] = (calib[5] & S7_P2_BKP_MASK) >> S7_P2_BKP_SHIFT;
	p2[8] = (calib[5] & S8_P2_BKP_MASK) >> S8_P2_BKP_SHIFT;
	p2[9] = (calib[5] & S9_P2_BKP_MASK) >> S9_P2_BKP_SHIFT;
	p2[10] = (calib[5] & S10_P2_BKP_MASK) >> S10_P2_BKP_SHIFT;
	/* Fall through */
	case ONE_PT_CALIB:
	case ONE_PT_CALIB2:
	base1 = bkp[0] & BASE1_MASK;
	p1[0] = (bkp[0] & S0_P1_MASK) >> S0_P1_SHIFT;
	p1[1] = (bkp[0] & S1_P1_MASK) >> S1_P1_SHIFT;
	p1[2] = (bkp[0] & S2_P1_MASK) >> S2_P1_SHIFT;
	p1[3] = (bkp[0] & S3_P1_MASK) >> S3_P1_SHIFT;
	p1[4] = (bkp[1] & S4_P1_MASK);
	p1[5] = (bkp[1] & S5_P1_MASK) >> S5_P1_SHIFT;
	p1[6] = (bkp[1] & S6_P1_MASK) >> S6_P1_SHIFT;
	p1[7] = (bkp[1] & S7_P1_MASK) >> S7_P1_SHIFT;
	p1[8] = (bkp[2] & S8_P1_MASK_BKP) >> S8_P1_SHIFT;
	p1[9] = (bkp[2] & S9_P1_MASK_BKP) >> S9_P1_BKP_SHIFT;
	p1[10] = (bkp[2] & S10_P1_MASK_BKP) >> S10_P1_BKP_SHIFT;
	break;
	}
	} else {
	mode = (calib[1] & CAL_SEL_0_1) >> CAL_SEL_SHIFT;
	mode \|= (calib[3] & CAL_SEL_2) >> CAL_SEL_SHIFT_2;

	switch (mode) {
	case TWO_PT_CALIB:
	base2 = (calib[2] & BASE2_MASK) >> BASE2_SHIFT;
	p2[0] = (calib[2] & S0_P2_MASK) >> S0_P2_SHIFT;
	p2[1] = (calib[2] & S1_P2_MASK) >> S1_P2_SHIFT;
	p2[2] = (calib[3] & S2_P2_MASK);
	p2[3] = (calib[3] & S3_P2_MASK) >> S3_P2_SHIFT;
	p2[4] = (calib[3] & S4_P2_MASK) >> S4_P2_SHIFT;
	p2[5] = (calib[3] & S5_P2_MASK) >> S5_P2_SHIFT;
	p2[6] = (calib[3] & S6_P2_MASK) >> S6_P2_SHIFT;
	p2[7] = (calib[4] & S7_P2_MASK);
	p2[8] = (calib[4] & S8_P2_MASK) >> S8_P2_SHIFT;
	p2[9] = (calib[4] & S9_P2_MASK) >> S9_P2_SHIFT;
	p2[10] = (calib[4] & S10_P2_MASK) >> S10_P2_SHIFT;
	/* Fall through */
	case ONE_PT_CALIB:
	case ONE_PT_CALIB2:
	base1 = calib[0] & BASE1_MASK;
	p1[0] = (calib[0] & S0_P1_MASK) >> S0_P1_SHIFT;
	p1[1] = (calib[0] & S1_P1_MASK) >> S1_P1_SHIFT;
	p1[2] = (calib[0] & S2_P1_MASK) >> S2_P1_SHIFT;
	p1[3] = (calib[0] & S3_P1_MASK) >> S3_P1_SHIFT;
	p1[4] = (calib[1] & S4_P1_MASK);
	p1[5] = (calib[1] & S5_P1_MASK) >> S5_P1_SHIFT;
	p1[6] = (calib[1] & S6_P1_MASK) >> S6_P1_SHIFT;
	p1[7] = (calib[1] & S7_P1_MASK) >> S7_P1_SHIFT;
	p1[8] = (calib[1] & S8_P1_MASK) >> S8_P1_SHIFT;
	p1[9] = (calib[2] & S9_P1_MASK);
	p1[10] = (calib[2] & S10_P1_MASK) >> S10_P1_SHIFT;
	break;
	}
	}

	switch (mode) {
	case ONE_PT_CALIB:
	for (i = 0; i < priv->num_sensors; i++)
	p1[i] += (base1 << 2) \| BIT_APPEND;
	break;
	case TWO_PT_CALIB:
	for (i = 0; i < priv->num_sensors; i++) {
	p2[i] += base2;
	p2[i] <<= 2;
	p2[i] \|= BIT_APPEND;
	}
	/* Fall through */
	case ONE_PT_CALIB2:
	for (i = 0; i < priv->num_sensors; i++) {
	p1[i] += base1;
	p1[i] <<= 2;
	p1[i] \|= BIT_APPEND;
	}
	break;
	default:
	for (i = 0; i < priv->num_sensors; i++)
	p2[i] = 780;
	p1[0] = 502;
	p1[1] = 509;
	p1[2] = 503;
	p1[3] = 509;
	p1[4] = 505;
	p1[5] = 509;
	p1[6] = 507;
	p1[7] = 510;
	p1[8] = 508;
	p1[9] = 509;
	p1[10] = 508;
	break;
	}

	compute_intercept_slope(priv, p1, p2, mode);
	kfree(calib);
	kfree(bkp);

	return 0;
	}

	/* v0.1: 8916, 8974 */

	static struct tsens_features tsens_v0_1_feat = {
	.ver_major = VER_0_1,
	.crit_int = 0,
	.adc = 1,
	.srot_split = 1,
	.max_sensors = 11,
	};

	static const struct reg_field tsens_v0_1_regfields[MAX_REGFIELDS] = {
	/* ----- SROT ------ */
	/* No VERSION information */

	/* CTRL_OFFSET */
	[TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
	[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),

	/* ----- 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),

	/* NO CRITICAL INTERRUPT SUPPORT on v0.1 */

	/* Sn_STATUS */
	REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
	/* No VALID field on v0.1 */
	/* 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 v0.1 */
	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_8916 = {
	.init = init_common,
	.calibrate = calibrate_8916,
	.get_temp = get_temp_common,
	};

	struct tsens_plat_data data_8916 = {
	.num_sensors = 5,
	.ops = &ops_8916,
	.hw_ids = (unsigned int []){0, 1, 2, 4, 5 },

	.feat = &tsens_v0_1_feat,
	.fields = tsens_v0_1_regfields,
	};

	static const struct tsens_ops ops_8974 = {
	.init = init_common,
	.calibrate = calibrate_8974,
	.get_temp = get_temp_common,
	};

	struct tsens_plat_data data_8974 = {
	.num_sensors = 11,
	.ops = &ops_8974,
	.feat = &tsens_v0_1_feat,
	.fields = tsens_v0_1_regfields,
	};