drivers/thermal/tsens2xxx.c - kernel/msm-4.9 - Gitiles

 /* Copyright (c) 2012-2019, 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_TM_INT_EN(n)			((n) + 0x4)
 #define TSENS_TM_CRITICAL_INT_STATUS(n)		((n) + 0x14)
 #define TSENS_TM_CRITICAL_INT_CLEAR(n)		((n) + 0x18)
 #define TSENS_TM_CRITICAL_INT_MASK(n)		((n) + 0x1c)
 #define TSENS_TM_CRITICAL_WD_BARK		BIT(31)
 #define TSENS_TM_CRITICAL_CYCLE_MONITOR		BIT(30)
 #define TSENS_TM_CRITICAL_INT_EN		BIT(2)
 #define TSENS_TM_UPPER_INT_EN			BIT(1)
 #define TSENS_TM_LOWER_INT_EN			BIT(0)
 #define TSENS_TM_UPPER_LOWER_INT_DISABLE	0xffffffff
 #define TSENS_TM_SN_UPPER_LOWER_THRESHOLD(n)	((n) + 0x20)
 #define TSENS_TM_SN_ADDR_OFFSET			0x4
 #define TSENS_TM_UPPER_THRESHOLD_SET(n)		((n) << 12)
 #define TSENS_TM_UPPER_THRESHOLD_VALUE_SHIFT(n)	((n) >> 12)
 #define TSENS_TM_LOWER_THRESHOLD_VALUE(n)	((n) & 0xfff)
 #define TSENS_TM_UPPER_THRESHOLD_VALUE(n)	(((n) & 0xfff000) >> 12)
 #define TSENS_TM_UPPER_THRESHOLD_MASK		0xfff000
 #define TSENS_TM_LOWER_THRESHOLD_MASK		0xfff
 #define TSENS_TM_UPPER_THRESHOLD_SHIFT		12
 #define TSENS_TM_SN_CRITICAL_THRESHOLD(n)	((n) + 0x60)
 #define TSENS_STATUS_ADDR_OFFSET		2
 #define TSENS_TM_UPPER_INT_MASK(n)		(((n) & 0xffff0000) >> 16)
 #define TSENS_TM_LOWER_INT_MASK(n)		((n) & 0xffff)
 #define TSENS_TM_UPPER_LOWER_INT_STATUS(n)	((n) + 0x8)
 #define TSENS_TM_UPPER_LOWER_INT_CLEAR(n)	((n) + 0xc)
 #define TSENS_TM_UPPER_LOWER_INT_MASK(n)	((n) + 0x10)
 #define TSENS_TM_UPPER_INT_SET(n)		(1 << (n + 16))
 #define TSENS_TM_SN_CRITICAL_THRESHOLD_MASK	0xfff
 #define TSENS_TM_SN_STATUS_VALID_BIT		BIT(21)
 #define TSENS_TM_SN_STATUS_CRITICAL_STATUS	BIT(19)
 #define TSENS_TM_SN_STATUS_UPPER_STATUS		BIT(18)
 #define TSENS_TM_SN_STATUS_LOWER_STATUS		BIT(17)
 #define TSENS_TM_SN_LAST_TEMP_MASK		0xfff
 #define TSENS_TM_CODE_BIT_MASK			0xfff
 #define TSENS_TM_CODE_SIGN_BIT			0x800
 #define TSENS_TM_SCALE_DECI_MILLIDEG		100
 #define TSENS_DEBUG_WDOG_TRIGGER_COUNT		5
 #define TSENS_TM_WATCHDOG_LOG(n)		((n) + 0x13c)
 #define TSENS_EN				BIT(0)
 #define TSENS_CTRL_SENSOR_EN_MASK(n)		((n >> 3) & 0xffff)
 #define TSENS_TM_TRDY(n)			((n) + 0xe4)
 #define TSENS_TM_TRDY_FIRST_ROUND_COMPLETE	BIT(3)
 #define TSENS_TM_TRDY_FIRST_ROUND_COMPLETE_SHIFT	3

 static void msm_tsens_convert_temp(int last_temp, int *temp)
 {
 	int code_mask = ~TSENS_TM_CODE_BIT_MASK;

 	if (last_temp & TSENS_TM_CODE_SIGN_BIT) {
 		/* Sign extension for negative value */
 		last_temp |= code_mask;
 	}

 	*temp = last_temp * TSENS_TM_SCALE_DECI_MILLIDEG;
 }

 static int tsens2xxx_get_temp(struct tsens_sensor *sensor, int *temp)
 {
 	struct tsens_device *tmdev = NULL;
 	unsigned int code;
 	void __iomem *sensor_addr, *trdy;
 	int last_temp = 0, last_temp2 = 0, last_temp3 = 0;

 	if (!sensor)
 		return -EINVAL;

 	tmdev = sensor->tmdev;
 	sensor_addr = TSENS_TM_SN_STATUS(tmdev->tsens_tm_addr);
 	trdy = TSENS_TM_TRDY(tmdev->tsens_tm_addr);

 	code = readl_relaxed_no_log(trdy);
 	if (!((code & TSENS_TM_TRDY_FIRST_ROUND_COMPLETE) >>
 			TSENS_TM_TRDY_FIRST_ROUND_COMPLETE_SHIFT)) {
 		pr_err("TSENS device first round not complete0x%x\n", code);
 		return -ENODATA;
 	}

 	code = readl_relaxed_no_log(sensor_addr +
 			(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));
 	last_temp = code & TSENS_TM_SN_LAST_TEMP_MASK;

 	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
 		msm_tsens_convert_temp(last_temp, temp);
 		goto dbg;
 	}

 	code = readl_relaxed_no_log(sensor_addr +
 		(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));
 	last_temp2 = code & TSENS_TM_SN_LAST_TEMP_MASK;
 	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
 		last_temp = last_temp2;
 		msm_tsens_convert_temp(last_temp, temp);
 		goto dbg;
 	}

 	code = readl_relaxed_no_log(sensor_addr +
 			(sensor->hw_id <<
 			TSENS_STATUS_ADDR_OFFSET));
 	last_temp3 = code & TSENS_TM_SN_LAST_TEMP_MASK;
 	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
 		last_temp = last_temp3;
 		msm_tsens_convert_temp(last_temp, temp);
 		goto dbg;
 	}

 	if (last_temp == last_temp2)
 		last_temp = last_temp2;
 	else if (last_temp2 == last_temp3)
 		last_temp = last_temp3;

 	msm_tsens_convert_temp(last_temp, temp);

 dbg:
 	if (tmdev->ops->dbg)
 		tmdev->ops->dbg(tmdev, (u32) sensor->hw_id,
 					TSENS_DBG_LOG_TEMP_READS, temp);

 	return 0;
 }

 static int tsens_tm_activate_trip_type(struct tsens_sensor *tm_sensor,
 			int trip, enum thermal_trip_activation_mode mode)
 {
 	struct tsens_device *tmdev = NULL;
 	unsigned int reg_cntl, mask;
 	int rc = 0;

 	/* clear the interrupt and unmask */
 	if (!tm_sensor || trip < 0)
 		return -EINVAL;

 	tmdev = tm_sensor->tmdev;
 	if (!tmdev)
 		return -EINVAL;


 	mask = (tm_sensor->hw_id);
 	switch (trip) {
 	case THERMAL_TRIP_CRITICAL:
 		tmdev->sensor[tm_sensor->hw_id].
 			thr_state.crit_th_state = mode;
 		reg_cntl = readl_relaxed(TSENS_TM_CRITICAL_INT_MASK
 						(tmdev->tsens_tm_addr));
 		if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
 			writel_relaxed(reg_cntl | (1 << mask),
 				(TSENS_TM_CRITICAL_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		else
 			writel_relaxed(reg_cntl & ~(1 << mask),
 				(TSENS_TM_CRITICAL_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		break;
 	case THERMAL_TRIP_CONFIGURABLE_HI:
 		tmdev->sensor[tm_sensor->hw_id].
 			thr_state.high_th_state = mode;
 		reg_cntl = readl_relaxed(TSENS_TM_UPPER_LOWER_INT_MASK
 						(tmdev->tsens_tm_addr));
 		if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
 			writel_relaxed(reg_cntl |
 				(TSENS_TM_UPPER_INT_SET(mask)),
 				(TSENS_TM_UPPER_LOWER_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		else
 			writel_relaxed(reg_cntl &
 				~(TSENS_TM_UPPER_INT_SET(mask)),
 				(TSENS_TM_UPPER_LOWER_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		break;
 	case THERMAL_TRIP_CONFIGURABLE_LOW:
 		tmdev->sensor[tm_sensor->hw_id].
 			thr_state.low_th_state = mode;
 		reg_cntl = readl_relaxed(TSENS_TM_UPPER_LOWER_INT_MASK
 						(tmdev->tsens_tm_addr));
 		if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
 			writel_relaxed(reg_cntl | (1 << mask),
 			(TSENS_TM_UPPER_LOWER_INT_MASK
 						(tmdev->tsens_tm_addr)));
 		else
 			writel_relaxed(reg_cntl & ~(1 << mask),
 			(TSENS_TM_UPPER_LOWER_INT_MASK
 						(tmdev->tsens_tm_addr)));
 		break;
 	default:
 		rc = -EINVAL;
 	}

 	/* Activate and enable the respective trip threshold setting */
 	mb();

 	return rc;
 }

 static int tsens2xxx_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 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) {
 		tmdev->sensor[tm_sensor->hw_id].
 				thr_state.high_temp = high_temp;
 		reg_cntl = readl_relaxed((TSENS_TM_SN_UPPER_LOWER_THRESHOLD
 				(tmdev->tsens_tm_addr)) +
 				(tm_sensor->hw_id *
 				TSENS_TM_SN_ADDR_OFFSET));
 		high_temp /= TSENS_TM_SCALE_DECI_MILLIDEG;
 		high_temp = TSENS_TM_UPPER_THRESHOLD_SET(high_temp);
 		high_temp &= TSENS_TM_UPPER_THRESHOLD_MASK;
 		reg_cntl &= ~TSENS_TM_UPPER_THRESHOLD_MASK;
 		writel_relaxed(reg_cntl | high_temp,
 			(TSENS_TM_SN_UPPER_LOWER_THRESHOLD
 				(tmdev->tsens_tm_addr) +
 			(tm_sensor->hw_id * TSENS_TM_SN_ADDR_OFFSET)));
 	}

 	if (low_temp != INT_MIN) {
 		tmdev->sensor[tm_sensor->hw_id].
 				thr_state.low_temp = low_temp;
 		reg_cntl = readl_relaxed((TSENS_TM_SN_UPPER_LOWER_THRESHOLD
 				(tmdev->tsens_tm_addr)) +
 				(tm_sensor->hw_id *
 				TSENS_TM_SN_ADDR_OFFSET));
 		low_temp /= TSENS_TM_SCALE_DECI_MILLIDEG;
 		low_temp &= TSENS_TM_LOWER_THRESHOLD_MASK;
 		reg_cntl &= ~TSENS_TM_LOWER_THRESHOLD_MASK;
 		writel_relaxed(reg_cntl | low_temp,
 			(TSENS_TM_SN_UPPER_LOWER_THRESHOLD
 				(tmdev->tsens_tm_addr) +
 			(tm_sensor->hw_id * TSENS_TM_SN_ADDR_OFFSET)));
 	}

 	/* Set trip temperature thresholds */
 	mb();

 	if (high_temp != INT_MAX) {
 		rc = tsens_tm_activate_trip_type(tm_sensor,
 				THERMAL_TRIP_CONFIGURABLE_HI,
 				THERMAL_TRIP_ACTIVATION_ENABLED);
 		if (rc) {
 			pr_err("trip high enable error :%d\n", rc);
 			goto fail;
 		}
 	} else {
 		rc = tsens_tm_activate_trip_type(tm_sensor,
 				THERMAL_TRIP_CONFIGURABLE_HI,
 				THERMAL_TRIP_ACTIVATION_DISABLED);
 		if (rc) {
 			pr_err("trip high disable error :%d\n", rc);
 			goto fail;
 		}
 	}

 	if (low_temp != INT_MIN) {
 		rc = tsens_tm_activate_trip_type(tm_sensor,
 				THERMAL_TRIP_CONFIGURABLE_LOW,
 				THERMAL_TRIP_ACTIVATION_ENABLED);
 		if (rc) {
 			pr_err("trip low enable activation error :%d\n", rc);
 			goto fail;
 		}
 	} else {
 		rc = tsens_tm_activate_trip_type(tm_sensor,
 				THERMAL_TRIP_CONFIGURABLE_LOW,
 				THERMAL_TRIP_ACTIVATION_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_tm_critical_irq_thread(int irq, void *data)
 {
 	struct tsens_device *tm = data;
 	unsigned int i, status, wd_log, wd_mask;
 	unsigned long flags;
 	void __iomem *sensor_status_addr, *sensor_int_mask_addr;
 	void __iomem *sensor_critical_addr;
 	void __iomem *wd_critical_addr, *wd_log_addr;

 	sensor_status_addr = TSENS_TM_SN_STATUS(tm->tsens_tm_addr);
 	sensor_int_mask_addr =
 		TSENS_TM_CRITICAL_INT_MASK(tm->tsens_tm_addr);
 	sensor_critical_addr =
 		TSENS_TM_SN_CRITICAL_THRESHOLD(tm->tsens_tm_addr);
 	wd_critical_addr =
 		TSENS_TM_CRITICAL_INT_STATUS(tm->tsens_tm_addr);
 	wd_log_addr = TSENS_TM_WATCHDOG_LOG(tm->tsens_tm_addr);

 	if (tm->ctrl_data->wd_bark) {
 		wd_mask = readl_relaxed(wd_critical_addr);
 		if (wd_mask & TSENS_TM_CRITICAL_WD_BARK) {
 			/*
 			 * Clear watchdog interrupt and
 			 * increment global wd count
 			 */
 			writel_relaxed(wd_mask | TSENS_TM_CRITICAL_WD_BARK,
 				(TSENS_TM_CRITICAL_INT_CLEAR
 				(tm->tsens_tm_addr)));
 			writel_relaxed(wd_mask & ~(TSENS_TM_CRITICAL_WD_BARK),
 				(TSENS_TM_CRITICAL_INT_CLEAR
 				(tm->tsens_tm_addr)));
 			wd_log = readl_relaxed(wd_log_addr);
 			if (wd_log >= TSENS_DEBUG_WDOG_TRIGGER_COUNT) {
 				pr_err("Watchdog count:%d\n", wd_log);
 				if (tm->ops->dbg)
 					tm->ops->dbg(tm, 0,
 					TSENS_DBG_LOG_BUS_ID_DATA, NULL);
 				BUG();
 			}

 			return IRQ_HANDLED;
 		}
 	}

 	for (i = 0; i < TSENS_MAX_SENSORS; i++) {
 		int int_mask, int_mask_val;
 		u32 addr_offset;

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

 		spin_lock_irqsave(&tm->tsens_crit_lock, flags);
 		addr_offset = tm->sensor[i].hw_id *
 						TSENS_TM_SN_ADDR_OFFSET;
 		status = readl_relaxed(sensor_status_addr + addr_offset);
 		int_mask = readl_relaxed(sensor_int_mask_addr);

 		if ((status & TSENS_TM_SN_STATUS_CRITICAL_STATUS) &&
 			!(int_mask & (1 << tm->sensor[i].hw_id))) {
 			int_mask = readl_relaxed(sensor_int_mask_addr);
 			int_mask_val = (1 << tm->sensor[i].hw_id);
 			/* Mask the corresponding interrupt for the sensors */
 			writel_relaxed(int_mask | int_mask_val,
 				TSENS_TM_CRITICAL_INT_MASK(
 					tm->tsens_tm_addr));
 			/* Clear the corresponding sensors interrupt */
 			writel_relaxed(int_mask_val,
 				TSENS_TM_CRITICAL_INT_CLEAR
 					(tm->tsens_tm_addr));
 			writel_relaxed(0,
 				TSENS_TM_CRITICAL_INT_CLEAR(
 					tm->tsens_tm_addr));
 			tm->sensor[i].thr_state.
 				crit_th_state =
 				THERMAL_TRIP_ACTIVATION_DISABLED;
 		}
 		spin_unlock_irqrestore(&tm->tsens_crit_lock, flags);
 	}

 	/* Mask critical interrupt */
 	mb();

 	return IRQ_HANDLED;
 }

 static irqreturn_t tsens_tm_irq_thread(int irq, void *data)
 {
 	struct tsens_device *tm = data;
 	unsigned int i, status, threshold, temp;
 	unsigned long flags;
 	void __iomem *sensor_status_addr;
 	void __iomem *sensor_int_mask_addr;
 	void __iomem *sensor_upper_lower_addr;
 	u32 addr_offset = 0;

 	sensor_status_addr = TSENS_TM_SN_STATUS(tm->tsens_tm_addr);
 	sensor_int_mask_addr =
 		TSENS_TM_UPPER_LOWER_INT_MASK(tm->tsens_tm_addr);
 	sensor_upper_lower_addr =
 		TSENS_TM_SN_UPPER_LOWER_THRESHOLD(tm->tsens_tm_addr);

 	for (i = 0; i < TSENS_MAX_SENSORS; i++) {
 		bool upper_thr = false, lower_thr = false;
 		int int_mask, int_mask_val = 0, rc;

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

 		rc = tsens2xxx_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_TM_SN_ADDR_OFFSET;
 		status = readl_relaxed(sensor_status_addr + addr_offset);
 		threshold = readl_relaxed(sensor_upper_lower_addr +
 								addr_offset);
 		int_mask = readl_relaxed(sensor_int_mask_addr);

 		if ((status & TSENS_TM_SN_STATUS_UPPER_STATUS) &&
 			!(int_mask &
 				(1 << (tm->sensor[i].hw_id + 16)))) {
 			int_mask = readl_relaxed(sensor_int_mask_addr);
 			int_mask_val = TSENS_TM_UPPER_INT_SET(
 					tm->sensor[i].hw_id);
 			/* Mask the corresponding interrupt for the sensors */
 			writel_relaxed(int_mask | int_mask_val,
 				TSENS_TM_UPPER_LOWER_INT_MASK(
 					tm->tsens_tm_addr));
 			/* Clear the corresponding sensors interrupt */
 			writel_relaxed(int_mask_val,
 				TSENS_TM_UPPER_LOWER_INT_CLEAR(
 					tm->tsens_tm_addr));
 			writel_relaxed(0,
 				TSENS_TM_UPPER_LOWER_INT_CLEAR(
 					tm->tsens_tm_addr));
 			if (TSENS_TM_UPPER_THRESHOLD_VALUE(threshold) >
 				(temp/TSENS_TM_SCALE_DECI_MILLIDEG)) {
 				pr_debug("Re-arm high threshold\n");
 				rc = tsens_tm_activate_trip_type(
 					&tm->sensor[i],
 					THERMAL_TRIP_CONFIGURABLE_HI,
 					THERMAL_TRIP_ACTIVATION_ENABLED);
 				if (rc)
 					pr_err("high rearm failed:%d\n", rc);
 			} else {
 				upper_thr = true;
 				tm->sensor[i].thr_state.
 					high_th_state =
 					THERMAL_TRIP_ACTIVATION_DISABLED;
 			}
 		}

 		if ((status & TSENS_TM_SN_STATUS_LOWER_STATUS) &&
 			!(int_mask &
 				(1 << tm->sensor[i].hw_id))) {
 			int_mask = readl_relaxed(sensor_int_mask_addr);
 			int_mask_val = (1 << tm->sensor[i].hw_id);
 			/* Mask the corresponding interrupt for the sensors */
 			writel_relaxed(int_mask | int_mask_val,
 				TSENS_TM_UPPER_LOWER_INT_MASK(
 					tm->tsens_tm_addr));
 			/* Clear the corresponding sensors interrupt */
 			writel_relaxed(int_mask_val,
 				TSENS_TM_UPPER_LOWER_INT_CLEAR(
 					tm->tsens_tm_addr));
 			writel_relaxed(0,
 				TSENS_TM_UPPER_LOWER_INT_CLEAR(
 					tm->tsens_tm_addr));
 			if (TSENS_TM_LOWER_THRESHOLD_VALUE(threshold)
 				< (temp/TSENS_TM_SCALE_DECI_MILLIDEG)) {
 				pr_debug("Re-arm low threshold\n");
 				rc = tsens_tm_activate_trip_type(
 					&tm->sensor[i],
 					THERMAL_TRIP_CONFIGURABLE_LOW,
 					THERMAL_TRIP_ACTIVATION_ENABLED);
 				if (rc)
 					pr_err("low rearm failed:%d\n", rc);
 			} else {
 				lower_thr = true;
 				tm->sensor[i].thr_state.
 					low_th_state =
 					THERMAL_TRIP_ACTIVATION_DISABLED;
 			}
 		}
 		spin_unlock_irqrestore(&tm->tsens_upp_low_lock, flags);

 		if (upper_thr || lower_thr) {
 			/* Use id for multiple controllers */
 			pr_debug("sensor:%d trigger temp (%d degC)\n",
 				tm->sensor[i].hw_id, temp);
 			of_thermal_handle_trip_temp(tm->sensor[i].tzd, temp);
 		}
 	}

 	/* Disable monitoring sensor trip threshold for triggered sensor */
 	mb();

 	if (tm->ops->dbg)
 		tm->ops->dbg(tm, 0, TSENS_DBG_LOG_INTERRUPT_TIMESTAMP, NULL);

 	return IRQ_HANDLED;
 }

 static int tsens2xxx_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 tsens2xxx_hw_init(struct tsens_device *tmdev)
 {
 	void __iomem *srot_addr;
 	void __iomem *sensor_int_mask_addr;
 	unsigned int srot_val, crit_mask, crit_val;
 	void __iomem *int_mask_addr;

 	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;
 	}

 	if (tmdev->ctrl_data->cycle_monitor) {
 		sensor_int_mask_addr =
 			TSENS_TM_CRITICAL_INT_MASK(tmdev->tsens_tm_addr);
 		crit_mask = readl_relaxed(sensor_int_mask_addr);
 		crit_val = TSENS_TM_CRITICAL_CYCLE_MONITOR;
 		if (tmdev->ctrl_data->cycle_compltn_monitor_mask)
 			writel_relaxed((crit_mask | crit_val),
 				(TSENS_TM_CRITICAL_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		else
 			writel_relaxed((crit_mask & ~crit_val),
 				(TSENS_TM_CRITICAL_INT_MASK
 				(tmdev->tsens_tm_addr)));
 		/*Update critical cycle monitoring*/
 		mb();
 	}

 	if (tmdev->ctrl_data->wd_bark) {
 		sensor_int_mask_addr =
 			TSENS_TM_CRITICAL_INT_MASK(tmdev->tsens_tm_addr);
 		crit_mask = readl_relaxed(sensor_int_mask_addr);
 		crit_val = TSENS_TM_CRITICAL_WD_BARK;
 		if (tmdev->ctrl_data->wd_bark_mask)
 			writel_relaxed((crit_mask | crit_val),
 			(TSENS_TM_CRITICAL_INT_MASK
 			(tmdev->tsens_tm_addr)));
 		else
 			writel_relaxed((crit_mask & ~crit_val),
 			(TSENS_TM_CRITICAL_INT_MASK
 			(tmdev->tsens_tm_addr)));
 		/*Update watchdog monitoring*/
 		mb();
 	}

 	int_mask_addr = TSENS_TM_UPPER_LOWER_INT_MASK(tmdev->tsens_tm_addr);
 	writel_relaxed(TSENS_TM_UPPER_LOWER_INT_DISABLE, int_mask_addr);

 	writel_relaxed(TSENS_TM_CRITICAL_INT_EN |
 		TSENS_TM_UPPER_INT_EN | TSENS_TM_LOWER_INT_EN,
 		TSENS_TM_INT_EN(tmdev->tsens_tm_addr));

 	spin_lock_init(&tmdev->tsens_crit_lock);
 	spin_lock_init(&tmdev->tsens_upp_low_lock);

 	if (tmdev->ctrl_data->mtc) {
 		if (tmdev->ops->dbg)
 			tmdev->ops->dbg(tmdev, 0, TSENS_DBG_MTC_DATA, NULL);
 	}

 	return 0;
 }

 static const struct tsens_irqs tsens2xxx_irqs[] = {
 	{ "tsens-upper-lower", tsens_tm_irq_thread},
 	{ "tsens-critical", tsens_tm_critical_irq_thread},
 };

 static int tsens2xxx_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(tsens2xxx_irqs); i++) {
 		int irq;

 		irq = platform_get_irq_byname(pdev, tsens2xxx_irqs[i].name);
 		if (irq < 0) {
 			dev_err(&pdev->dev, "failed to get irq %s\n",
 					tsens2xxx_irqs[i].name);
 			return irq;
 		}

 		rc = devm_request_threaded_irq(&pdev->dev, irq, NULL,
 				tsens2xxx_irqs[i].handler,
 				IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
 				tsens2xxx_irqs[i].name, tmdev);
 		if (rc) {
 			dev_err(&pdev->dev, "failed to get irq %s\n",
 					tsens2xxx_irqs[i].name);
 			return rc;
 		}
 		enable_irq_wake(irq);
 	}

 	return 0;
 }

 static const struct tsens_ops ops_tsens2xxx = {
 	.hw_init	= tsens2xxx_hw_init,
 	.get_temp	= tsens2xxx_get_temp,
 	.set_trips	= tsens2xxx_set_trip_temp,
 	.interrupts_reg	= tsens2xxx_register_interrupts,
 	.dbg		= tsens2xxx_dbg,
 	.sensor_en	= tsens2xxx_hw_sensor_en,
 };

 const struct tsens_data data_tsens2xxx = {
 	.cycle_monitor			= false,
 	.cycle_compltn_monitor_mask	= 1,
 	.wd_bark			= false,
 	.wd_bark_mask			= 1,
 	.ops				= &ops_tsens2xxx,
 	.mtc				= true,
 };

 const struct tsens_data data_tsens23xx = {
 	.cycle_monitor			= true,
 	.cycle_compltn_monitor_mask	= 1,
 	.wd_bark			= true,
 	.wd_bark_mask			= 1,
 	.ops				= &ops_tsens2xxx,
 	.mtc				= false,
 };

 const struct tsens_data data_tsens24xx = {
 	.cycle_monitor			= true,
 	.cycle_compltn_monitor_mask	= 1,
 	.wd_bark			= true,
 	/* Enable Watchdog monitoring by unmasking */
 	.wd_bark_mask			= 0,
 	.ops				= &ops_tsens2xxx,
 	.mtc				= false,
 };
	/* Copyright (c) 2012-2019, 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_TM_INT_EN(n) ((n) + 0x4)
	#define TSENS_TM_CRITICAL_INT_STATUS(n) ((n) + 0x14)
	#define TSENS_TM_CRITICAL_INT_CLEAR(n) ((n) + 0x18)
	#define TSENS_TM_CRITICAL_INT_MASK(n) ((n) + 0x1c)
	#define TSENS_TM_CRITICAL_WD_BARK BIT(31)
	#define TSENS_TM_CRITICAL_CYCLE_MONITOR BIT(30)
	#define TSENS_TM_CRITICAL_INT_EN BIT(2)
	#define TSENS_TM_UPPER_INT_EN BIT(1)
	#define TSENS_TM_LOWER_INT_EN BIT(0)
	#define TSENS_TM_UPPER_LOWER_INT_DISABLE 0xffffffff
	#define TSENS_TM_SN_UPPER_LOWER_THRESHOLD(n) ((n) + 0x20)
	#define TSENS_TM_SN_ADDR_OFFSET 0x4
	#define TSENS_TM_UPPER_THRESHOLD_SET(n) ((n) << 12)
	#define TSENS_TM_UPPER_THRESHOLD_VALUE_SHIFT(n) ((n) >> 12)
	#define TSENS_TM_LOWER_THRESHOLD_VALUE(n) ((n) & 0xfff)
	#define TSENS_TM_UPPER_THRESHOLD_VALUE(n) (((n) & 0xfff000) >> 12)
	#define TSENS_TM_UPPER_THRESHOLD_MASK 0xfff000
	#define TSENS_TM_LOWER_THRESHOLD_MASK 0xfff
	#define TSENS_TM_UPPER_THRESHOLD_SHIFT 12
	#define TSENS_TM_SN_CRITICAL_THRESHOLD(n) ((n) + 0x60)
	#define TSENS_STATUS_ADDR_OFFSET 2
	#define TSENS_TM_UPPER_INT_MASK(n) (((n) & 0xffff0000) >> 16)
	#define TSENS_TM_LOWER_INT_MASK(n) ((n) & 0xffff)
	#define TSENS_TM_UPPER_LOWER_INT_STATUS(n) ((n) + 0x8)
	#define TSENS_TM_UPPER_LOWER_INT_CLEAR(n) ((n) + 0xc)
	#define TSENS_TM_UPPER_LOWER_INT_MASK(n) ((n) + 0x10)
	#define TSENS_TM_UPPER_INT_SET(n) (1 << (n + 16))
	#define TSENS_TM_SN_CRITICAL_THRESHOLD_MASK 0xfff
	#define TSENS_TM_SN_STATUS_VALID_BIT BIT(21)
	#define TSENS_TM_SN_STATUS_CRITICAL_STATUS BIT(19)
	#define TSENS_TM_SN_STATUS_UPPER_STATUS BIT(18)
	#define TSENS_TM_SN_STATUS_LOWER_STATUS BIT(17)
	#define TSENS_TM_SN_LAST_TEMP_MASK 0xfff
	#define TSENS_TM_CODE_BIT_MASK 0xfff
	#define TSENS_TM_CODE_SIGN_BIT 0x800
	#define TSENS_TM_SCALE_DECI_MILLIDEG 100
	#define TSENS_DEBUG_WDOG_TRIGGER_COUNT 5
	#define TSENS_TM_WATCHDOG_LOG(n) ((n) + 0x13c)
	#define TSENS_EN BIT(0)
	#define TSENS_CTRL_SENSOR_EN_MASK(n) ((n >> 3) & 0xffff)
	#define TSENS_TM_TRDY(n) ((n) + 0xe4)
	#define TSENS_TM_TRDY_FIRST_ROUND_COMPLETE BIT(3)
	#define TSENS_TM_TRDY_FIRST_ROUND_COMPLETE_SHIFT 3

	static void msm_tsens_convert_temp(int last_temp, int *temp)
	{
	int code_mask = ~TSENS_TM_CODE_BIT_MASK;

	if (last_temp & TSENS_TM_CODE_SIGN_BIT) {
	/* Sign extension for negative value */
	last_temp \|= code_mask;
	}

	temp = last_temp TSENS_TM_SCALE_DECI_MILLIDEG;
	}

	static int tsens2xxx_get_temp(struct tsens_sensor sensor, int temp)
	{
	struct tsens_device *tmdev = NULL;
	unsigned int code;
	void __iomem sensor_addr, trdy;
	int last_temp = 0, last_temp2 = 0, last_temp3 = 0;

	if (!sensor)
	return -EINVAL;

	tmdev = sensor->tmdev;
	sensor_addr = TSENS_TM_SN_STATUS(tmdev->tsens_tm_addr);
	trdy = TSENS_TM_TRDY(tmdev->tsens_tm_addr);

	code = readl_relaxed_no_log(trdy);
	if (!((code & TSENS_TM_TRDY_FIRST_ROUND_COMPLETE) >>
	TSENS_TM_TRDY_FIRST_ROUND_COMPLETE_SHIFT)) {
	pr_err("TSENS device first round not complete0x%x\n", code);
	return -ENODATA;
	}

	code = readl_relaxed_no_log(sensor_addr +
	(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));
	last_temp = code & TSENS_TM_SN_LAST_TEMP_MASK;

	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
	msm_tsens_convert_temp(last_temp, temp);
	goto dbg;
	}

	code = readl_relaxed_no_log(sensor_addr +
	(sensor->hw_id << TSENS_STATUS_ADDR_OFFSET));
	last_temp2 = code & TSENS_TM_SN_LAST_TEMP_MASK;
	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
	last_temp = last_temp2;
	msm_tsens_convert_temp(last_temp, temp);
	goto dbg;
	}

	code = readl_relaxed_no_log(sensor_addr +
	(sensor->hw_id <<
	TSENS_STATUS_ADDR_OFFSET));
	last_temp3 = code & TSENS_TM_SN_LAST_TEMP_MASK;
	if (code & TSENS_TM_SN_STATUS_VALID_BIT) {
	last_temp = last_temp3;
	msm_tsens_convert_temp(last_temp, temp);
	goto dbg;
	}

	if (last_temp == last_temp2)
	last_temp = last_temp2;
	else if (last_temp2 == last_temp3)
	last_temp = last_temp3;

	msm_tsens_convert_temp(last_temp, temp);

	dbg:
	if (tmdev->ops->dbg)
	tmdev->ops->dbg(tmdev, (u32) sensor->hw_id,
	TSENS_DBG_LOG_TEMP_READS, temp);

	return 0;
	}

	static int tsens_tm_activate_trip_type(struct tsens_sensor *tm_sensor,
	int trip, enum thermal_trip_activation_mode mode)
	{
	struct tsens_device *tmdev = NULL;
	unsigned int reg_cntl, mask;
	int rc = 0;

	/* clear the interrupt and unmask */
	if (!tm_sensor \|\| trip < 0)
	return -EINVAL;

	tmdev = tm_sensor->tmdev;
	if (!tmdev)
	return -EINVAL;


	mask = (tm_sensor->hw_id);
	switch (trip) {
	case THERMAL_TRIP_CRITICAL:
	tmdev->sensor[tm_sensor->hw_id].
	thr_state.crit_th_state = mode;
	reg_cntl = readl_relaxed(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr));
	if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
	writel_relaxed(reg_cntl \| (1 << mask),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	else
	writel_relaxed(reg_cntl & ~(1 << mask),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	break;
	case THERMAL_TRIP_CONFIGURABLE_HI:
	tmdev->sensor[tm_sensor->hw_id].
	thr_state.high_th_state = mode;
	reg_cntl = readl_relaxed(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr));
	if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
	writel_relaxed(reg_cntl \|
	(TSENS_TM_UPPER_INT_SET(mask)),
	(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr)));
	else
	writel_relaxed(reg_cntl &
	~(TSENS_TM_UPPER_INT_SET(mask)),
	(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr)));
	break;
	case THERMAL_TRIP_CONFIGURABLE_LOW:
	tmdev->sensor[tm_sensor->hw_id].
	thr_state.low_th_state = mode;
	reg_cntl = readl_relaxed(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr));
	if (mode == THERMAL_TRIP_ACTIVATION_DISABLED)
	writel_relaxed(reg_cntl \| (1 << mask),
	(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr)));
	else
	writel_relaxed(reg_cntl & ~(1 << mask),
	(TSENS_TM_UPPER_LOWER_INT_MASK
	(tmdev->tsens_tm_addr)));
	break;
	default:
	rc = -EINVAL;
	}

	/* Activate and enable the respective trip threshold setting */
	mb();

	return rc;
	}

	static int tsens2xxx_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 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) {
	tmdev->sensor[tm_sensor->hw_id].
	thr_state.high_temp = high_temp;
	reg_cntl = readl_relaxed((TSENS_TM_SN_UPPER_LOWER_THRESHOLD
	(tmdev->tsens_tm_addr)) +
	(tm_sensor->hw_id *
	TSENS_TM_SN_ADDR_OFFSET));
	high_temp /= TSENS_TM_SCALE_DECI_MILLIDEG;
	high_temp = TSENS_TM_UPPER_THRESHOLD_SET(high_temp);
	high_temp &= TSENS_TM_UPPER_THRESHOLD_MASK;
	reg_cntl &= ~TSENS_TM_UPPER_THRESHOLD_MASK;
	writel_relaxed(reg_cntl \| high_temp,
	(TSENS_TM_SN_UPPER_LOWER_THRESHOLD
	(tmdev->tsens_tm_addr) +
	(tm_sensor->hw_id * TSENS_TM_SN_ADDR_OFFSET)));
	}

	if (low_temp != INT_MIN) {
	tmdev->sensor[tm_sensor->hw_id].
	thr_state.low_temp = low_temp;
	reg_cntl = readl_relaxed((TSENS_TM_SN_UPPER_LOWER_THRESHOLD
	(tmdev->tsens_tm_addr)) +
	(tm_sensor->hw_id *
	TSENS_TM_SN_ADDR_OFFSET));
	low_temp /= TSENS_TM_SCALE_DECI_MILLIDEG;
	low_temp &= TSENS_TM_LOWER_THRESHOLD_MASK;
	reg_cntl &= ~TSENS_TM_LOWER_THRESHOLD_MASK;
	writel_relaxed(reg_cntl \| low_temp,
	(TSENS_TM_SN_UPPER_LOWER_THRESHOLD
	(tmdev->tsens_tm_addr) +
	(tm_sensor->hw_id * TSENS_TM_SN_ADDR_OFFSET)));
	}

	/* Set trip temperature thresholds */
	mb();

	if (high_temp != INT_MAX) {
	rc = tsens_tm_activate_trip_type(tm_sensor,
	THERMAL_TRIP_CONFIGURABLE_HI,
	THERMAL_TRIP_ACTIVATION_ENABLED);
	if (rc) {
	pr_err("trip high enable error :%d\n", rc);
	goto fail;
	}
	} else {
	rc = tsens_tm_activate_trip_type(tm_sensor,
	THERMAL_TRIP_CONFIGURABLE_HI,
	THERMAL_TRIP_ACTIVATION_DISABLED);
	if (rc) {
	pr_err("trip high disable error :%d\n", rc);
	goto fail;
	}
	}

	if (low_temp != INT_MIN) {
	rc = tsens_tm_activate_trip_type(tm_sensor,
	THERMAL_TRIP_CONFIGURABLE_LOW,
	THERMAL_TRIP_ACTIVATION_ENABLED);
	if (rc) {
	pr_err("trip low enable activation error :%d\n", rc);
	goto fail;
	}
	} else {
	rc = tsens_tm_activate_trip_type(tm_sensor,
	THERMAL_TRIP_CONFIGURABLE_LOW,
	THERMAL_TRIP_ACTIVATION_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_tm_critical_irq_thread(int irq, void *data)
	{
	struct tsens_device *tm = data;
	unsigned int i, status, wd_log, wd_mask;
	unsigned long flags;
	void __iomem sensor_status_addr, sensor_int_mask_addr;
	void __iomem *sensor_critical_addr;
	void __iomem wd_critical_addr, wd_log_addr;

	sensor_status_addr = TSENS_TM_SN_STATUS(tm->tsens_tm_addr);
	sensor_int_mask_addr =
	TSENS_TM_CRITICAL_INT_MASK(tm->tsens_tm_addr);
	sensor_critical_addr =
	TSENS_TM_SN_CRITICAL_THRESHOLD(tm->tsens_tm_addr);
	wd_critical_addr =
	TSENS_TM_CRITICAL_INT_STATUS(tm->tsens_tm_addr);
	wd_log_addr = TSENS_TM_WATCHDOG_LOG(tm->tsens_tm_addr);

	if (tm->ctrl_data->wd_bark) {
	wd_mask = readl_relaxed(wd_critical_addr);
	if (wd_mask & TSENS_TM_CRITICAL_WD_BARK) {
	/*
	* Clear watchdog interrupt and
	* increment global wd count
	*/
	writel_relaxed(wd_mask \| TSENS_TM_CRITICAL_WD_BARK,
	(TSENS_TM_CRITICAL_INT_CLEAR
	(tm->tsens_tm_addr)));
	writel_relaxed(wd_mask & ~(TSENS_TM_CRITICAL_WD_BARK),
	(TSENS_TM_CRITICAL_INT_CLEAR
	(tm->tsens_tm_addr)));
	wd_log = readl_relaxed(wd_log_addr);
	if (wd_log >= TSENS_DEBUG_WDOG_TRIGGER_COUNT) {
	pr_err("Watchdog count:%d\n", wd_log);
	if (tm->ops->dbg)
	tm->ops->dbg(tm, 0,
	TSENS_DBG_LOG_BUS_ID_DATA, NULL);
	BUG();
	}

	return IRQ_HANDLED;
	}
	}

	for (i = 0; i < TSENS_MAX_SENSORS; i++) {
	int int_mask, int_mask_val;
	u32 addr_offset;

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

	spin_lock_irqsave(&tm->tsens_crit_lock, flags);
	addr_offset = tm->sensor[i].hw_id *
	TSENS_TM_SN_ADDR_OFFSET;
	status = readl_relaxed(sensor_status_addr + addr_offset);
	int_mask = readl_relaxed(sensor_int_mask_addr);

	if ((status & TSENS_TM_SN_STATUS_CRITICAL_STATUS) &&
	!(int_mask & (1 << tm->sensor[i].hw_id))) {
	int_mask = readl_relaxed(sensor_int_mask_addr);
	int_mask_val = (1 << tm->sensor[i].hw_id);
	/* Mask the corresponding interrupt for the sensors */
	writel_relaxed(int_mask \| int_mask_val,
	TSENS_TM_CRITICAL_INT_MASK(
	tm->tsens_tm_addr));
	/* Clear the corresponding sensors interrupt */
	writel_relaxed(int_mask_val,
	TSENS_TM_CRITICAL_INT_CLEAR
	(tm->tsens_tm_addr));
	writel_relaxed(0,
	TSENS_TM_CRITICAL_INT_CLEAR(
	tm->tsens_tm_addr));
	tm->sensor[i].thr_state.
	crit_th_state =
	THERMAL_TRIP_ACTIVATION_DISABLED;
	}
	spin_unlock_irqrestore(&tm->tsens_crit_lock, flags);
	}

	/* Mask critical interrupt */
	mb();

	return IRQ_HANDLED;
	}

	static irqreturn_t tsens_tm_irq_thread(int irq, void *data)
	{
	struct tsens_device *tm = data;
	unsigned int i, status, threshold, temp;
	unsigned long flags;
	void __iomem *sensor_status_addr;
	void __iomem *sensor_int_mask_addr;
	void __iomem *sensor_upper_lower_addr;
	u32 addr_offset = 0;

	sensor_status_addr = TSENS_TM_SN_STATUS(tm->tsens_tm_addr);
	sensor_int_mask_addr =
	TSENS_TM_UPPER_LOWER_INT_MASK(tm->tsens_tm_addr);
	sensor_upper_lower_addr =
	TSENS_TM_SN_UPPER_LOWER_THRESHOLD(tm->tsens_tm_addr);

	for (i = 0; i < TSENS_MAX_SENSORS; i++) {
	bool upper_thr = false, lower_thr = false;
	int int_mask, int_mask_val = 0, rc;

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

	rc = tsens2xxx_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_TM_SN_ADDR_OFFSET;
	status = readl_relaxed(sensor_status_addr + addr_offset);
	threshold = readl_relaxed(sensor_upper_lower_addr +
	addr_offset);
	int_mask = readl_relaxed(sensor_int_mask_addr);

	if ((status & TSENS_TM_SN_STATUS_UPPER_STATUS) &&
	!(int_mask &
	(1 << (tm->sensor[i].hw_id + 16)))) {
	int_mask = readl_relaxed(sensor_int_mask_addr);
	int_mask_val = TSENS_TM_UPPER_INT_SET(
	tm->sensor[i].hw_id);
	/* Mask the corresponding interrupt for the sensors */
	writel_relaxed(int_mask \| int_mask_val,
	TSENS_TM_UPPER_LOWER_INT_MASK(
	tm->tsens_tm_addr));
	/* Clear the corresponding sensors interrupt */
	writel_relaxed(int_mask_val,
	TSENS_TM_UPPER_LOWER_INT_CLEAR(
	tm->tsens_tm_addr));
	writel_relaxed(0,
	TSENS_TM_UPPER_LOWER_INT_CLEAR(
	tm->tsens_tm_addr));
	if (TSENS_TM_UPPER_THRESHOLD_VALUE(threshold) >
	(temp/TSENS_TM_SCALE_DECI_MILLIDEG)) {
	pr_debug("Re-arm high threshold\n");
	rc = tsens_tm_activate_trip_type(
	&tm->sensor[i],
	THERMAL_TRIP_CONFIGURABLE_HI,
	THERMAL_TRIP_ACTIVATION_ENABLED);
	if (rc)
	pr_err("high rearm failed:%d\n", rc);
	} else {
	upper_thr = true;
	tm->sensor[i].thr_state.
	high_th_state =
	THERMAL_TRIP_ACTIVATION_DISABLED;
	}
	}

	if ((status & TSENS_TM_SN_STATUS_LOWER_STATUS) &&
	!(int_mask &
	(1 << tm->sensor[i].hw_id))) {
	int_mask = readl_relaxed(sensor_int_mask_addr);
	int_mask_val = (1 << tm->sensor[i].hw_id);
	/* Mask the corresponding interrupt for the sensors */
	writel_relaxed(int_mask \| int_mask_val,
	TSENS_TM_UPPER_LOWER_INT_MASK(
	tm->tsens_tm_addr));
	/* Clear the corresponding sensors interrupt */
	writel_relaxed(int_mask_val,
	TSENS_TM_UPPER_LOWER_INT_CLEAR(
	tm->tsens_tm_addr));
	writel_relaxed(0,
	TSENS_TM_UPPER_LOWER_INT_CLEAR(
	tm->tsens_tm_addr));
	if (TSENS_TM_LOWER_THRESHOLD_VALUE(threshold)
	< (temp/TSENS_TM_SCALE_DECI_MILLIDEG)) {
	pr_debug("Re-arm low threshold\n");
	rc = tsens_tm_activate_trip_type(
	&tm->sensor[i],
	THERMAL_TRIP_CONFIGURABLE_LOW,
	THERMAL_TRIP_ACTIVATION_ENABLED);
	if (rc)
	pr_err("low rearm failed:%d\n", rc);
	} else {
	lower_thr = true;
	tm->sensor[i].thr_state.
	low_th_state =
	THERMAL_TRIP_ACTIVATION_DISABLED;
	}
	}
	spin_unlock_irqrestore(&tm->tsens_upp_low_lock, flags);

	if (upper_thr \|\| lower_thr) {
	/* Use id for multiple controllers */
	pr_debug("sensor:%d trigger temp (%d degC)\n",
	tm->sensor[i].hw_id, temp);
	of_thermal_handle_trip_temp(tm->sensor[i].tzd, temp);
	}
	}

	/* Disable monitoring sensor trip threshold for triggered sensor */
	mb();

	if (tm->ops->dbg)
	tm->ops->dbg(tm, 0, TSENS_DBG_LOG_INTERRUPT_TIMESTAMP, NULL);

	return IRQ_HANDLED;
	}

	static int tsens2xxx_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 tsens2xxx_hw_init(struct tsens_device *tmdev)
	{
	void __iomem *srot_addr;
	void __iomem *sensor_int_mask_addr;
	unsigned int srot_val, crit_mask, crit_val;
	void __iomem *int_mask_addr;

	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;
	}

	if (tmdev->ctrl_data->cycle_monitor) {
	sensor_int_mask_addr =
	TSENS_TM_CRITICAL_INT_MASK(tmdev->tsens_tm_addr);
	crit_mask = readl_relaxed(sensor_int_mask_addr);
	crit_val = TSENS_TM_CRITICAL_CYCLE_MONITOR;
	if (tmdev->ctrl_data->cycle_compltn_monitor_mask)
	writel_relaxed((crit_mask \| crit_val),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	else
	writel_relaxed((crit_mask & ~crit_val),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	/Update critical cycle monitoring/
	mb();
	}

	if (tmdev->ctrl_data->wd_bark) {
	sensor_int_mask_addr =
	TSENS_TM_CRITICAL_INT_MASK(tmdev->tsens_tm_addr);
	crit_mask = readl_relaxed(sensor_int_mask_addr);
	crit_val = TSENS_TM_CRITICAL_WD_BARK;
	if (tmdev->ctrl_data->wd_bark_mask)
	writel_relaxed((crit_mask \| crit_val),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	else
	writel_relaxed((crit_mask & ~crit_val),
	(TSENS_TM_CRITICAL_INT_MASK
	(tmdev->tsens_tm_addr)));
	/Update watchdog monitoring/
	mb();
	}

	int_mask_addr = TSENS_TM_UPPER_LOWER_INT_MASK(tmdev->tsens_tm_addr);
	writel_relaxed(TSENS_TM_UPPER_LOWER_INT_DISABLE, int_mask_addr);

	writel_relaxed(TSENS_TM_CRITICAL_INT_EN \|
	TSENS_TM_UPPER_INT_EN \| TSENS_TM_LOWER_INT_EN,
	TSENS_TM_INT_EN(tmdev->tsens_tm_addr));

	spin_lock_init(&tmdev->tsens_crit_lock);
	spin_lock_init(&tmdev->tsens_upp_low_lock);

	if (tmdev->ctrl_data->mtc) {
	if (tmdev->ops->dbg)
	tmdev->ops->dbg(tmdev, 0, TSENS_DBG_MTC_DATA, NULL);
	}

	return 0;
	}

	static const struct tsens_irqs tsens2xxx_irqs[] = {
	{ "tsens-upper-lower", tsens_tm_irq_thread},
	{ "tsens-critical", tsens_tm_critical_irq_thread},
	};

	static int tsens2xxx_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(tsens2xxx_irqs); i++) {
	int irq;

	irq = platform_get_irq_byname(pdev, tsens2xxx_irqs[i].name);
	if (irq < 0) {
	dev_err(&pdev->dev, "failed to get irq %s\n",
	tsens2xxx_irqs[i].name);
	return irq;
	}

	rc = devm_request_threaded_irq(&pdev->dev, irq, NULL,
	tsens2xxx_irqs[i].handler,
	IRQF_TRIGGER_HIGH \| IRQF_ONESHOT,
	tsens2xxx_irqs[i].name, tmdev);
	if (rc) {
	dev_err(&pdev->dev, "failed to get irq %s\n",
	tsens2xxx_irqs[i].name);
	return rc;
	}
	enable_irq_wake(irq);
	}

	return 0;
	}

	static const struct tsens_ops ops_tsens2xxx = {
	.hw_init = tsens2xxx_hw_init,
	.get_temp = tsens2xxx_get_temp,
	.set_trips = tsens2xxx_set_trip_temp,
	.interrupts_reg = tsens2xxx_register_interrupts,
	.dbg = tsens2xxx_dbg,
	.sensor_en = tsens2xxx_hw_sensor_en,
	};

	const struct tsens_data data_tsens2xxx = {
	.cycle_monitor = false,
	.cycle_compltn_monitor_mask = 1,
	.wd_bark = false,
	.wd_bark_mask = 1,
	.ops = &ops_tsens2xxx,
	.mtc = true,
	};

	const struct tsens_data data_tsens23xx = {
	.cycle_monitor = true,
	.cycle_compltn_monitor_mask = 1,
	.wd_bark = true,
	.wd_bark_mask = 1,
	.ops = &ops_tsens2xxx,
	.mtc = false,
	};

	const struct tsens_data data_tsens24xx = {
	.cycle_monitor = true,
	.cycle_compltn_monitor_mask = 1,
	.wd_bark = true,
	/* Enable Watchdog monitoring by unmasking */
	.wd_bark_mask = 0,
	.ops = &ops_tsens2xxx,
	.mtc = false,
	};