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Commit e677c1ca authored by Rama Krishna Phani A's avatar Rama Krishna Phani A
Browse files

thermal: tsens: Add Tsens 1.x controller support 



Add Tsens 1.x controller support.

Change-Id: I7b16362a13a26c825999c50535ad8bcfff745028
Signed-off-by: default avatarRama Krishna Phani A <rphani@codeaurora.org>
parent 4b19ee48

Documentation/devicetree/bindings/thermal/tsens.txt

+1 −0
Original line number Diff line number Diff line
@@ -19,6 +19,7 @@ Required properties: 
	       should be "qcom,sdm630-tsens" for 630 TSENS driver.

	       should be "qcom,sdm845-tsens" for SDM845 TSENS driver.

	       should be "qcom,tsens24xx" for 2.4 TSENS controller.

	       should be "qcom,msm8937-tsens" for 8937 TSENS driver.

	       The compatible property is used to identify the respective controller to use

	       for the corresponding SoC.

- reg : offset and length of the TSENS registers with associated property in reg-names

drivers/thermal/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -58,4 +58,4 @@ obj-$(CONFIG_HISI_THERMAL) += hisi_thermal.o 
obj-$(CONFIG_MTK_THERMAL)	+= mtk_thermal.o

obj-$(CONFIG_GENERIC_ADC_THERMAL)	+= thermal-generic-adc.o

obj-$(CONFIG_THERMAL_QPNP_ADC_TM)	+= qpnp-adc-tm.o

obj-$(CONFIG_THERMAL_TSENS)	+= msm-tsens.o tsens2xxx.o tsens-dbg.o tsens-mtc.o
 
obj-$(CONFIG_THERMAL_TSENS)	+= msm-tsens.o tsens2xxx.o tsens-dbg.o tsens-mtc.o tsens1xxx.o

drivers/thermal/msm-tsens.c

+31 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -49,6 +49,11 @@ static int tsens_init(struct tsens_device *tmdev) 
	return tmdev->ops->hw_init(tmdev);

}



static int tsens_calib(struct tsens_device *tmdev)

{

	return tmdev->ops->calibrate(tmdev);

}



static int tsens_register_interrupts(struct tsens_device *tmdev)

{

	if (tmdev->ops->interrupts_reg)
@@ -82,6 +87,9 @@ static const struct of_device_id tsens_table[] = { 
	{	.compatible = "qcom,tsens24xx",

		.data = &data_tsens24xx,

	},

	{	.compatible = "qcom,msm8937-tsens",

		.data = &data_tsens14xx,

	},

	{}

};

MODULE_DEVICE_TABLE(of, tsens_table);
@@ -97,6 +105,7 @@ static int get_device_tree_data(struct platform_device *pdev, 
	struct device_node *of_node = pdev->dev.of_node;

	const struct of_device_id *id;

	const struct tsens_data *data;

	int rc = 0;

	struct resource *res_tsens_mem;



	if (!of_match_node(tsens_table, of_node)) {
@@ -150,7 +159,27 @@ static int get_device_tree_data(struct platform_device *pdev, 
		return PTR_ERR(tmdev->tsens_tm_addr);

	}



	return 0;

	/* TSENS eeprom register region */

	res_tsens_mem = platform_get_resource_byname(pdev,

				IORESOURCE_MEM, "tsens_eeprom_physical");

	if (!res_tsens_mem) {

		pr_debug("Could not get tsens physical address resource\n");

	} else {

		tmdev->tsens_calib_addr = devm_ioremap_resource(&pdev->dev,

								res_tsens_mem);

		if (IS_ERR(tmdev->tsens_calib_addr)) {

			dev_err(&pdev->dev, "Failed to IO map TSENS EEPROM registers.\n");

			rc = PTR_ERR(tmdev->tsens_calib_addr);

		}  else {

			rc = tsens_calib(tmdev);

			if (rc) {

				pr_err("Error initializing TSENS controller\n");

				return rc;

			}

		}

	}



	return rc;

}



static int tsens_thermal_zone_register(struct tsens_device *tmdev)

drivers/thermal/tsens.h

+16 −3
Original line number Diff line number Diff line 
/* Copyright (c) 2017, The Linux Foundation. All rights reserved.

/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -23,10 +23,15 @@ 


#define DEBUG_SIZE				10

#define TSENS_MAX_SENSORS			16

#define TSENS_1x_MAX_SENSORS			11

#define TSENS_CONTROLLER_ID(n)			(n)

#define TSENS_CTRL_ADDR(n)			(n)

#define TSENS_TM_SN_STATUS(n)			((n) + 0xa0)



#define ONE_PT_CALIB		0x1

#define ONE_PT_CALIB2		0x2

#define TWO_PT_CALIB		0x3



enum tsens_dbg_type {

	TSENS_DBG_POLL,

	TSENS_DBG_LOG_TEMP_READS,
@@ -70,6 +75,8 @@ struct tsens_context { 
	int				high_temp;

	int				low_temp;

	int				crit_temp;

	int				high_adc_code;

	int				low_adc_code;

};



struct tsens_sensor {
@@ -79,6 +86,8 @@ struct tsens_sensor { 
	u32				id;

	const char			*sensor_name;

	struct tsens_context		thr_state;

	int				offset;

	int				slope;

};



/**
@@ -93,6 +102,7 @@ struct tsens_ops { 
	int (*interrupts_reg)(struct tsens_device *);

	int (*dbg)(struct tsens_device *, u32, u32, int *);

	int (*sensor_en)(struct tsens_device *, u32);

	int (*calibrate)(struct tsens_device *);

};



struct tsens_irqs {
@@ -116,14 +126,15 @@ struct tsens_data { 
	bool				wd_bark;

	u32				wd_bark_mask;

	bool				mtc;

	bool				valid_status_check;

};



struct tsens_mtc_sysfs {

	uint32_t	zone_log;

	u32			zone_log;

	int			zone_mtc;

	int			th1;

	int			th2;

	uint32_t	zone_hist;

	u32			zone_hist;

};



struct tsens_device {
@@ -134,6 +145,7 @@ struct tsens_device { 
	struct regmap_field		*status_field;

	void __iomem			*tsens_srot_addr;

	void __iomem			*tsens_tm_addr;

	void __iomem			*tsens_calib_addr;

	const struct tsens_ops		*ops;

	struct tsens_dbg_context	tsens_dbg;

	spinlock_t			tsens_crit_lock;
@@ -144,6 +156,7 @@ struct tsens_device { 
};



extern const struct tsens_data data_tsens2xxx, data_tsens23xx, data_tsens24xx;

extern const struct tsens_data data_tsens14xx;

extern struct list_head tsens_device_list;



#endif /* __QCOM_TSENS_H__ */

drivers/thermal/tsens1xxx.c

0 → 100644
+654 −0
Original line number Diff line number Diff line 
/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and

 * only version 2 as published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 */



#include <linux/module.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/err.h>

#include <linux/of.h>

#include <linux/vmalloc.h>

#include "tsens.h"

#include "thermal_core.h"



#define TSENS_DRIVER_NAME			"msm-tsens"



#define TSENS_UPPER_LOWER_INTERRUPT_CTRL(n)		(n)

#define TSENS_INTERRUPT_EN		BIT(0)



#define TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(n)	((n) + 0x04)

#define TSENS_UPPER_STATUS_CLR		BIT(21)

#define TSENS_LOWER_STATUS_CLR		BIT(20)

#define TSENS_UPPER_THRESHOLD_MASK	0xffc00

#define TSENS_LOWER_THRESHOLD_MASK	0x3ff

#define TSENS_UPPER_THRESHOLD_SHIFT	10



#define TSENS_S0_STATUS_ADDR(n)		((n) + 0x30)

#define TSENS_SN_ADDR_OFFSET		0x4

#define TSENS_SN_STATUS_TEMP_MASK	0x3ff

#define TSENS_SN_STATUS_LOWER_STATUS	BIT(11)

#define TSENS_SN_STATUS_UPPER_STATUS	BIT(12)

#define TSENS_STATUS_ADDR_OFFSET			2



#define TSENS_TRDY_MASK			BIT(0)



#define TSENS_SN_STATUS_ADDR(n)	((n) + 0x44)

#define TSENS_SN_STATUS_VALID		BIT(14)

#define TSENS_SN_STATUS_VALID_MASK	0x4000

#define TSENS_TRDY_ADDR(n)		((n) + 0x84)



#define TSENS_CTRL_ADDR(n)		(n)

#define TSENS_EN				BIT(0)

#define TSENS_CTRL_SENSOR_EN_MASK(n)		((n >> 3) & 0x7ff)

#define TSENS_TRDY_RDY_MIN_TIME		2000

#define TSENS_TRDY_RDY_MAX_TIME		2100

#define TSENS_THRESHOLD_MAX_CODE	0x3ff

#define TSENS_THRESHOLD_MIN_CODE	0x0



/* eeprom layout data for 8937 */

#define BASE0_MASK	0x000000ff

#define BASE1_MASK	0xff000000

#define BASE1_SHIFT	24



#define S0_P1_MASK		0x000001f8

#define S1_P1_MASK		0x001f8000

#define S2_P1_MASK_0_4		0xf8000000

#define S2_P1_MASK_5		0x00000001

#define S3_P1_MASK		0x00001f80

#define S4_P1_MASK		0x01f80000

#define S5_P1_MASK		0x00003f00

#define S6_P1_MASK		0x03f00000

#define S7_P1_MASK		0x0000003f

#define S8_P1_MASK		0x0003f000

#define S9_P1_MASK		0x0000003f

#define S10_P1_MASK		0x0003f000



#define S0_P2_MASK		0x00007e00

#define S1_P2_MASK		0x07e00000

#define S2_P2_MASK		0x0000007e

#define S3_P2_MASK		0x0007e000

#define S4_P2_MASK		0x7e000000

#define S5_P2_MASK		0x000fc000

#define S6_P2_MASK		0xfc000000

#define S7_P2_MASK		0x00000fc0

#define S8_P2_MASK		0x00fc0000

#define S9_P2_MASK		0x00000fc0

#define S10_P2_MASK		0x00fc0000



#define S0_P1_SHIFT     3

#define S1_P1_SHIFT     15

#define S2_P1_SHIFT_0_4 27

#define S2_P1_SHIFT_5   5

#define S3_P1_SHIFT     7

#define S4_P1_SHIFT     19

#define S5_P1_SHIFT     8

#define S6_P1_SHIFT     20

#define S8_P1_SHIFT     12

#define S10_P1_SHIFT    12



#define S0_P2_SHIFT     9

#define S1_P2_SHIFT     21

#define S2_P2_SHIFT     1

#define S3_P2_SHIFT     13

#define S4_P2_SHIFT     25

#define S5_P2_SHIFT     14

#define S6_P2_SHIFT     26

#define S7_P2_SHIFT     6

#define S8_P2_SHIFT     18

#define S9_P2_SHIFT     6

#define S10_P2_SHIFT    18



#define CAL_SEL_MASK	0x00000007



#define CAL_DEGC_PT1		30

#define CAL_DEGC_PT2		120

#define SLOPE_FACTOR		1000

#define SLOPE_DEFAULT		3200



/*

 * Use this function on devices where slope and offset calculations

 * depend on calibration data read from qfprom. On others the slope

 * and offset values are derived from tz->tzp->slope and tz->tzp->offset

 * resp.

 */

static void compute_intercept_slope(struct tsens_device *tmdev, u32 *p1,

			     u32 *p2, u32 mode)

{

	int i;

	int num, den;



	for (i = 0; i < TSENS_1x_MAX_SENSORS; i++) {

		pr_debug(

			"sensor%d - data_point1:%#x data_point2:%#x\n",

			i, p1[i], p2[i]);



		tmdev->sensor[i].slope = SLOPE_DEFAULT;

		if (mode == TWO_PT_CALIB) {

			/*

			 * slope (m) = adc_code2 - adc_code1 (y2 - y1)/

			 *	temp_120_degc - temp_30_degc (x2 - x1)

			 */

			num = p2[i] - p1[i];

			num *= SLOPE_FACTOR;

			den = CAL_DEGC_PT2 - CAL_DEGC_PT1;

			tmdev->sensor[i].slope = num / den;

		}



		tmdev->sensor[i].offset = (p1[i] * SLOPE_FACTOR) -

				(CAL_DEGC_PT1 *

				tmdev->sensor[i].slope);

		pr_debug("offset:%d\n", tmdev->sensor[i].offset);

	}

}



static int code_to_degc(u32 adc_code, const struct tsens_sensor *sensor)

{

	int degc, num, den;



	num = (adc_code * SLOPE_FACTOR) - sensor->offset;

	den = sensor->slope;



	if (num > 0)

		degc = num + (den / 2);

	else if (num < 0)

		degc = num - (den / 2);

	else

		degc = num;



	degc /= den;



	return degc;

}



static int degc_to_code(int degc, const struct tsens_sensor *sensor)

{

	int code = ((degc * sensor->slope)

		+ sensor->offset)/SLOPE_FACTOR;



	if (code > TSENS_THRESHOLD_MAX_CODE)

		code = TSENS_THRESHOLD_MAX_CODE;

	else if (code < TSENS_THRESHOLD_MIN_CODE)

		code = TSENS_THRESHOLD_MIN_CODE;

	pr_debug("raw_code:0x%x, degc:%d\n",

			code, degc);

	return code;

}



static int calibrate_8937(struct tsens_device *tmdev)

{

	int base0 = 0, base1 = 0, i;

	u32 p1[TSENS_1x_MAX_SENSORS], p2[TSENS_1x_MAX_SENSORS];

	int mode = 0, tmp = 0;

	u32 qfprom_cdata[5] = {0, 0, 0, 0, 0};



	qfprom_cdata[0] = readl_relaxed(tmdev->tsens_calib_addr + 0x1D8);

	qfprom_cdata[1] = readl_relaxed(tmdev->tsens_calib_addr + 0x1DC);

	qfprom_cdata[2] = readl_relaxed(tmdev->tsens_calib_addr + 0x210);

	qfprom_cdata[3] = readl_relaxed(tmdev->tsens_calib_addr + 0x214);

	qfprom_cdata[4] = readl_relaxed(tmdev->tsens_calib_addr + 0x230);



	mode = (qfprom_cdata[2] & CAL_SEL_MASK);

	pr_debug("calibration mode is %d\n", mode);



	switch (mode) {

	case TWO_PT_CALIB:

		base1 = (qfprom_cdata[1] & BASE1_MASK) >> BASE1_SHIFT;

		p2[0] = (qfprom_cdata[2] & S0_P2_MASK) >> S0_P2_SHIFT;

		p2[1] = (qfprom_cdata[2] & S1_P2_MASK) >> S1_P2_SHIFT;

		p2[2] = (qfprom_cdata[3] & S2_P2_MASK) >> S2_P2_SHIFT;

		p2[3] = (qfprom_cdata[3] & S3_P2_MASK) >> S3_P2_SHIFT;

		p2[4] = (qfprom_cdata[3] & S4_P2_MASK) >> S4_P2_SHIFT;

		p2[5] = (qfprom_cdata[0] & S5_P2_MASK) >> S5_P2_SHIFT;

		p2[6] = (qfprom_cdata[0] & S6_P2_MASK) >> S6_P2_SHIFT;

		p2[7] = (qfprom_cdata[1] & S7_P2_MASK) >> S7_P2_SHIFT;

		p2[8] = (qfprom_cdata[1] & S8_P2_MASK) >> S8_P2_SHIFT;

		p2[9] = (qfprom_cdata[4] & S9_P2_MASK) >> S9_P2_SHIFT;

		p2[10] = (qfprom_cdata[4] & S10_P2_MASK) >> S10_P2_SHIFT;



		for (i = 0; i < TSENS_1x_MAX_SENSORS; i++)

			p2[i] = ((base1 + p2[i]) << 2);

		/* Fall through */

	case ONE_PT_CALIB2:

		base0 = (qfprom_cdata[0] & BASE0_MASK);

		p1[0] = (qfprom_cdata[2] & S0_P1_MASK) >> S0_P1_SHIFT;

		p1[1] = (qfprom_cdata[2] & S1_P1_MASK) >> S1_P1_SHIFT;

		p1[2] = (qfprom_cdata[2] & S2_P1_MASK_0_4) >> S2_P1_SHIFT_0_4;

		tmp = (qfprom_cdata[3] & S2_P1_MASK_5) << S2_P1_SHIFT_5;

		p1[2] |= tmp;

		p1[3] = (qfprom_cdata[3] & S3_P1_MASK) >> S3_P1_SHIFT;

		p1[4] = (qfprom_cdata[3] & S4_P1_MASK) >> S4_P1_SHIFT;

		p1[5] = (qfprom_cdata[0] & S5_P1_MASK) >> S5_P1_SHIFT;

		p1[6] = (qfprom_cdata[0] & S6_P1_MASK) >> S6_P1_SHIFT;

		p1[7] = (qfprom_cdata[1] & S7_P1_MASK);

		p1[8] = (qfprom_cdata[1] & S8_P1_MASK) >> S8_P1_SHIFT;

		p1[9] = (qfprom_cdata[4] & S9_P1_MASK);

		p1[10] = (qfprom_cdata[4] & S10_P1_MASK) >> S10_P1_SHIFT;



		for (i = 0; i < TSENS_1x_MAX_SENSORS; i++)

			p1[i] = (((base0) + p1[i]) << 2);

		break;

	default:

		for (i = 0; i < TSENS_1x_MAX_SENSORS; i++) {

			p1[i] = 500;

			p2[i] = 780;

		}

		break;

	}



	compute_intercept_slope(tmdev, p1, p2, mode);



	return 0;

}



static int tsens1xxx_get_temp(struct tsens_sensor *sensor, int *temp)

{

	struct tsens_device *tmdev = NULL;

	unsigned int code;

	void __iomem *sensor_addr;

	void __iomem *trdy_addr;

	int last_temp = 0, last_temp2 = 0, last_temp3 = 0;

	bool last_temp_valid = false, last_temp2_valid = false;

	bool last_temp3_valid = false;



	if (!sensor)

		return -EINVAL;



	tmdev = sensor->tmdev;



	trdy_addr = TSENS_TRDY_ADDR(tmdev->tsens_tm_addr);

	sensor_addr = TSENS_SN_STATUS_ADDR(tmdev->tsens_tm_addr);



	code = readl_relaxed(sensor_addr +

			(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));

	last_temp = code & TSENS_SN_STATUS_TEMP_MASK;



	if (tmdev->ctrl_data->valid_status_check) {

		if (code & TSENS_SN_STATUS_VALID)

			last_temp_valid = true;

		else {

			code = readl_relaxed(sensor_addr +

				(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));

			last_temp2 = code & TSENS_SN_STATUS_TEMP_MASK;

			if (code & TSENS_SN_STATUS_VALID) {

				last_temp = last_temp2;

				last_temp2_valid = true;

			} else {

				code = readl_relaxed(sensor_addr +

					(sensor->hw_id <<

					TSENS_STATUS_ADDR_OFFSET));

				last_temp3 = code & TSENS_SN_STATUS_TEMP_MASK;

				if (code & TSENS_SN_STATUS_VALID) {

					last_temp = last_temp3;

					last_temp3_valid = true;

				}

			}

		}

	}



	if ((tmdev->ctrl_data->valid_status_check) &&

		(!last_temp_valid && !last_temp2_valid && !last_temp3_valid)) {

		if (last_temp == last_temp2)

			last_temp = last_temp2;

		else if (last_temp2 == last_temp3)

			last_temp = last_temp3;

	}



	*temp = code_to_degc(last_temp, sensor);



	return 0;

}



static int tsens_tz_activate_trip_type(struct tsens_sensor *tm_sensor,

			int trip, enum thermal_device_mode mode)

{

	struct tsens_device *tmdev = NULL;

	unsigned int reg_cntl, code, hi_code, lo_code, mask;



	/* clear the interrupt and unmask */

	if (!tm_sensor || trip < 0)

		return -EINVAL;



	tmdev = tm_sensor->tmdev;

	if (!tmdev)

		return -EINVAL;



	lo_code = TSENS_THRESHOLD_MIN_CODE;

	hi_code = TSENS_THRESHOLD_MAX_CODE;



	reg_cntl = readl_relaxed((TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR

					(tmdev->tsens_tm_addr) +

					(tm_sensor->hw_id *

					TSENS_SN_ADDR_OFFSET)));



	switch (trip) {

	case THERMAL_TRIP_CONFIGURABLE_HI:

		tmdev->sensor[tm_sensor->hw_id].thr_state.high_th_state = mode;



		code = (reg_cntl & TSENS_UPPER_THRESHOLD_MASK)

					>> TSENS_UPPER_THRESHOLD_SHIFT;

		mask = TSENS_UPPER_STATUS_CLR;



		if (!(reg_cntl & TSENS_LOWER_STATUS_CLR))

			lo_code = (reg_cntl & TSENS_LOWER_THRESHOLD_MASK);

		break;

	case THERMAL_TRIP_CONFIGURABLE_LOW:

		tmdev->sensor[tm_sensor->hw_id].thr_state.low_th_state = mode;



		code = (reg_cntl & TSENS_LOWER_THRESHOLD_MASK);

		mask = TSENS_LOWER_STATUS_CLR;



		if (!(reg_cntl & TSENS_UPPER_STATUS_CLR))

			hi_code = (reg_cntl & TSENS_UPPER_THRESHOLD_MASK)

					>> TSENS_UPPER_THRESHOLD_SHIFT;

		break;

	default:

		return -EINVAL;

	}



	if (mode == THERMAL_DEVICE_DISABLED)

		writel_relaxed(reg_cntl | mask,

		(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(tmdev->tsens_tm_addr) +

			(tm_sensor->hw_id * TSENS_SN_ADDR_OFFSET)));

	else

		writel_relaxed(reg_cntl & ~mask,

		(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(tmdev->tsens_tm_addr) +

		(tm_sensor->hw_id * TSENS_SN_ADDR_OFFSET)));

	/* Enable the thresholds */

	mb();



	return 0;

}



static int tsens1xxx_set_trip_temp(struct tsens_sensor *tm_sensor,

						int low_temp, int high_temp)

{

	unsigned int reg_cntl;

	unsigned long flags;

	struct tsens_device *tmdev = NULL;

	int high_code, low_code, rc = 0;



	if (!tm_sensor)

		return -EINVAL;



	tmdev = tm_sensor->tmdev;

	if (!tmdev)

		return -EINVAL;



	spin_lock_irqsave(&tmdev->tsens_upp_low_lock, flags);



	if (high_temp != INT_MAX) {

		high_code = degc_to_code(high_temp, tm_sensor);

		tmdev->sensor[tm_sensor->hw_id].thr_state.high_adc_code =

							high_code;

		tmdev->sensor[tm_sensor->hw_id].thr_state.high_temp =

							high_temp;



		reg_cntl = readl_relaxed(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR

					(tmdev->tsens_tm_addr) +

					(tm_sensor->hw_id *

					 TSENS_SN_ADDR_OFFSET));



		high_code <<= TSENS_UPPER_THRESHOLD_SHIFT;

		reg_cntl &= ~TSENS_UPPER_THRESHOLD_MASK;

		writel_relaxed(reg_cntl | high_code,

				(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR

					(tmdev->tsens_tm_addr) +

					(tm_sensor->hw_id *

					TSENS_SN_ADDR_OFFSET)));

	}



	if (low_temp != INT_MIN) {

		low_code = degc_to_code(low_temp, tm_sensor);

		tmdev->sensor[tm_sensor->hw_id].thr_state.low_adc_code =

							low_code;

		tmdev->sensor[tm_sensor->hw_id].thr_state.low_temp =

							low_temp;



		reg_cntl = readl_relaxed(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR

					(tmdev->tsens_tm_addr) +

					(tm_sensor->hw_id *

					TSENS_SN_ADDR_OFFSET));



		reg_cntl &= ~TSENS_LOWER_THRESHOLD_MASK;

		writel_relaxed(reg_cntl | low_code,

				(TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR

					(tmdev->tsens_tm_addr) +

					(tm_sensor->hw_id *

					TSENS_SN_ADDR_OFFSET)));

	}

	/* Set trip temperature thresholds */

	mb();



	if (high_temp != INT_MAX) {

		rc = tsens_tz_activate_trip_type(tm_sensor,

				THERMAL_TRIP_CONFIGURABLE_HI,

				THERMAL_DEVICE_ENABLED);

		if (rc) {

			pr_err("trip high enable error :%d\n", rc);

			goto fail;

		}

	} else {

		rc = tsens_tz_activate_trip_type(tm_sensor,

				THERMAL_TRIP_CONFIGURABLE_HI,

				THERMAL_DEVICE_DISABLED);

		if (rc) {

			pr_err("trip high disable error :%d\n", rc);

			goto fail;

		}

	}



	if (low_temp != INT_MIN) {

		rc = tsens_tz_activate_trip_type(tm_sensor,

				THERMAL_TRIP_CONFIGURABLE_LOW,

				THERMAL_DEVICE_ENABLED);

		if (rc) {

			pr_err("trip low enable activation error :%d\n", rc);

			goto fail;

		}

	} else {

		rc = tsens_tz_activate_trip_type(tm_sensor,

				THERMAL_TRIP_CONFIGURABLE_LOW,

				THERMAL_DEVICE_DISABLED);

		if (rc) {

			pr_err("trip low disable error :%d\n", rc);

			goto fail;

		}

	}



fail:

	spin_unlock_irqrestore(&tmdev->tsens_upp_low_lock, flags);

	return rc;

}



static irqreturn_t tsens_irq_thread(int irq, void *data)

{

	struct tsens_device *tm = data;

	unsigned int i, status, threshold, temp, th_temp;

	unsigned long flags;

	void __iomem *sensor_status_addr;

	void __iomem *sensor_status_ctrl_addr;

	u32 rc = 0, addr_offset;



	sensor_status_addr = TSENS_SN_STATUS_ADDR(tm->tsens_tm_addr);

	sensor_status_ctrl_addr =

		TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(tm->tsens_tm_addr);



	for (i = 0; i < TSENS_1x_MAX_SENSORS; i++) {

		bool upper_thr = false, lower_thr = false;



		if (IS_ERR(tm->sensor[i].tzd))

			continue;



		rc = tsens1xxx_get_temp(&tm->sensor[i], &temp);

		if (rc) {

			pr_debug("Error:%d reading temp sensor:%d\n", rc, i);

			continue;

		}



		spin_lock_irqsave(&tm->tsens_upp_low_lock, flags);



		addr_offset = tm->sensor[i].hw_id *

						TSENS_SN_ADDR_OFFSET;

		status = readl_relaxed(sensor_status_addr + addr_offset);

		threshold = readl_relaxed(sensor_status_ctrl_addr +

								addr_offset);



		if (status & TSENS_SN_STATUS_UPPER_STATUS) {

			writel_relaxed(threshold | TSENS_UPPER_STATUS_CLR,

				TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(

					tm->tsens_tm_addr + addr_offset));

			th_temp = code_to_degc((threshold &

					TSENS_UPPER_THRESHOLD_MASK) >>

					TSENS_UPPER_THRESHOLD_SHIFT,

					tm->sensor);

			if (th_temp > temp) {

				pr_debug("Re-arm high threshold\n");

				rc = tsens_tz_activate_trip_type(

						&tm->sensor[i],

						THERMAL_TRIP_CONFIGURABLE_HI,

						THERMAL_DEVICE_ENABLED);

				if (rc)

					pr_err("high rearm failed");

			} else {

				upper_thr = true;

				tm->sensor[i].thr_state.high_th_state =

					THERMAL_DEVICE_DISABLED;

			}

		}



		if (status & TSENS_SN_STATUS_LOWER_STATUS) {

			writel_relaxed(threshold | TSENS_LOWER_STATUS_CLR,

				TSENS_S0_UPPER_LOWER_STATUS_CTRL_ADDR(

					tm->tsens_tm_addr + addr_offset));

			th_temp = code_to_degc((threshold &

					TSENS_LOWER_THRESHOLD_MASK),

					tm->sensor);

			if (th_temp < temp) {

				pr_debug("Re-arm Low threshold\n");

				rc = tsens_tz_activate_trip_type(

						&tm->sensor[i],

						THERMAL_TRIP_CONFIGURABLE_LOW,

						THERMAL_DEVICE_ENABLED);

				if (rc)

					pr_err("low rearm failed");

			} else {

				lower_thr = true;

				tm->sensor[i].thr_state.low_th_state =

					THERMAL_DEVICE_DISABLED;

			}

		}

		spin_unlock_irqrestore(&tm->tsens_upp_low_lock, flags);



		if (upper_thr || lower_thr) {

			pr_debug("sensor:%d trigger temp (%d degC)\n",

				tm->sensor[i].hw_id,

				code_to_degc((status &

				TSENS_SN_STATUS_TEMP_MASK),

				tm->sensor));

			of_thermal_handle_trip(tm->sensor[i].tzd);

		}

	}



	/* Disable monitoring sensor trip threshold for triggered sensor */

	mb();



	return IRQ_HANDLED;

}



static int tsens1xxx_hw_sensor_en(struct tsens_device *tmdev,

					u32 sensor_id)

{

	void __iomem *srot_addr;

	unsigned int srot_val, sensor_en;



	srot_addr = TSENS_CTRL_ADDR(tmdev->tsens_srot_addr + 0x4);

	srot_val = readl_relaxed(srot_addr);

	srot_val = TSENS_CTRL_SENSOR_EN_MASK(srot_val);



	sensor_en = ((1 << sensor_id) & srot_val);



	return sensor_en;

}



static int tsens1xxx_hw_init(struct tsens_device *tmdev)

{

	void __iomem *srot_addr;

	unsigned int srot_val;



	srot_addr = TSENS_CTRL_ADDR(tmdev->tsens_srot_addr + 0x4);

	srot_val = readl_relaxed(srot_addr);

	if (!(srot_val & TSENS_EN)) {

		pr_err("TSENS device is not enabled\n");

		return -ENODEV;

	}



	writel_relaxed(TSENS_INTERRUPT_EN,

			TSENS_UPPER_LOWER_INTERRUPT_CTRL(tmdev->tsens_tm_addr));



	spin_lock_init(&tmdev->tsens_upp_low_lock);



	return 0;

}



static const struct tsens_irqs tsens1xxx_irqs[] = {

	{ "tsens-upper-lower", tsens_irq_thread},

};



static int tsens1xxx_register_interrupts(struct tsens_device *tmdev)

{

	struct platform_device *pdev;

	int i, rc;



	if (!tmdev)

		return -EINVAL;



	pdev = tmdev->pdev;



	for (i = 0; i < ARRAY_SIZE(tsens1xxx_irqs); i++) {

		int irq;



		irq = platform_get_irq_byname(pdev, tsens1xxx_irqs[i].name);

		if (irq < 0) {

			dev_err(&pdev->dev, "failed to get irq %s\n",

					tsens1xxx_irqs[i].name);

			return irq;

		}



		rc = devm_request_threaded_irq(&pdev->dev, irq, NULL,

				tsens1xxx_irqs[i].handler,

				IRQF_TRIGGER_HIGH | IRQF_ONESHOT,

				tsens1xxx_irqs[i].name, tmdev);

		if (rc) {

			dev_err(&pdev->dev, "failed to get irq %s\n",

					tsens1xxx_irqs[i].name);

			return rc;

		}

		enable_irq_wake(irq);

	}



	return 0;

}



static const struct tsens_ops ops_tsens1xxx = {

	.hw_init		= tsens1xxx_hw_init,

	.get_temp		= tsens1xxx_get_temp,

	.set_trips		= tsens1xxx_set_trip_temp,

	.interrupts_reg		= tsens1xxx_register_interrupts,

	.sensor_en		= tsens1xxx_hw_sensor_en,

	.calibrate		= calibrate_8937,

};



const struct tsens_data data_tsens14xx = {

	.ops			= &ops_tsens1xxx,

	.valid_status_check	= true,

	.mtc			= true,

};