Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * Thermal device driver for DA9062 and DA9061
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * Copyright (C) 2017  Dialog Semiconductor
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) /* When over-temperature is reached, an interrupt from the device will be
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * triggered. Following this event the interrupt will be disabled and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * periodic transmission of uevents (HOT trip point) should define the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * first level of temperature supervision. It is expected that any final
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * implementation of the thermal driver will include a .notify() function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  * to implement these uevents to userspace.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14)  * These uevents are intended to indicate non-invasive temperature control
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15)  * of the system, where the necessary measures for cooling are the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16)  * responsibility of the host software. Once the temperature falls again,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17)  * the IRQ is re-enabled so the start of a new over-temperature event can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18)  * be detected without constant software monitoring.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #include <linux/thermal.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/workqueue.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/mfd/da9062/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #include <linux/mfd/da9062/registers.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) /* Minimum, maximum and default polling millisecond periods are provided
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34)  * here as an example. It is expected that any final implementation to also
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35)  * include a modification of these settings to match the required
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36)  * application.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define DA9062_DEFAULT_POLLING_MS_PERIOD	3000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define DA9062_MAX_POLLING_MS_PERIOD		10000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define DA9062_MIN_POLLING_MS_PERIOD		1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) #define DA9062_MILLI_CELSIUS(t)			((t) * 1000)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) struct da9062_thermal_config {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	const char *name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) struct da9062_thermal {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	struct da9062 *hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	struct delayed_work work;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct thermal_zone_device *zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct mutex lock; /* protection for da9062_thermal temperature */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 	int temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	const struct da9062_thermal_config *config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) static void da9062_thermal_poll_on(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	struct da9062_thermal *thermal = container_of(work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 						struct da9062_thermal,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 						work.work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	unsigned long delay;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	/* clear E_TEMP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	ret = regmap_write(thermal->hw->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 			   DA9062AA_EVENT_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 			   DA9062AA_E_TEMP_MASK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		dev_err(thermal->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 			"Cannot clear the TJUNC temperature status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 		goto err_enable_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	/* Now read E_TEMP again: it is acting like a status bit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	 * If over-temperature, then this status will be true.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	 * If not over-temperature, this status will be false.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	ret = regmap_read(thermal->hw->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 			  DA9062AA_EVENT_B,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 			  &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 		dev_err(thermal->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 			"Cannot check the TJUNC temperature status\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 		goto err_enable_irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	if (val & DA9062AA_E_TEMP_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 		mutex_lock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 		thermal->temperature = DA9062_MILLI_CELSIUS(125);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 		mutex_unlock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 		thermal_zone_device_update(thermal->zone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 					   THERMAL_EVENT_UNSPECIFIED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 		delay = msecs_to_jiffies(thermal->zone->passive_delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 		queue_delayed_work(system_freezable_wq, &thermal->work, delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 		return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	mutex_lock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	thermal->temperature = DA9062_MILLI_CELSIUS(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	mutex_unlock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	thermal_zone_device_update(thermal->zone,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 				   THERMAL_EVENT_UNSPECIFIED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) err_enable_irq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	enable_irq(thermal->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static irqreturn_t da9062_thermal_irq_handler(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	struct da9062_thermal *thermal = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	disable_irq_nosync(thermal->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	queue_delayed_work(system_freezable_wq, &thermal->work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static int da9062_thermal_get_trip_type(struct thermal_zone_device *z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 					int trip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 					enum thermal_trip_type *type)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	struct da9062_thermal *thermal = z->devdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	switch (trip) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		*type = THERMAL_TRIP_HOT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		dev_err(thermal->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 			"Driver does not support more than 1 trip-wire\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) static int da9062_thermal_get_trip_temp(struct thermal_zone_device *z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 					int trip,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 					int *temp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	struct da9062_thermal *thermal = z->devdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	switch (trip) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	case 0:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		*temp = DA9062_MILLI_CELSIUS(125);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 		dev_err(thermal->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 			"Driver does not support more than 1 trip-wire\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) static int da9062_thermal_get_temp(struct thermal_zone_device *z,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 				   int *temp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	struct da9062_thermal *thermal = z->devdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	mutex_lock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	*temp = thermal->temperature;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	mutex_unlock(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) static struct thermal_zone_device_ops da9062_thermal_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	.get_temp	= da9062_thermal_get_temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	.get_trip_type	= da9062_thermal_get_trip_type,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	.get_trip_temp	= da9062_thermal_get_trip_temp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) static const struct da9062_thermal_config da9062_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	.name = "da9062-thermal",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) static const struct of_device_id da9062_compatible_reg_id_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	{ .compatible = "dlg,da9062-thermal", .data = &da9062_config },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	{ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) MODULE_DEVICE_TABLE(of, da9062_compatible_reg_id_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static int da9062_thermal_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	struct da9062 *chip = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	struct da9062_thermal *thermal;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	unsigned int pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	const struct of_device_id *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	match = of_match_node(da9062_compatible_reg_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 			      pdev->dev.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	if (!match)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 		return -ENXIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (pdev->dev.of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		if (!of_property_read_u32(pdev->dev.of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 					  "polling-delay-passive",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 					  &pp_tmp)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 			if (pp_tmp < DA9062_MIN_POLLING_MS_PERIOD ||
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 			    pp_tmp > DA9062_MAX_POLLING_MS_PERIOD) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 				dev_warn(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 					 "Out-of-range polling period %d ms\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 					 pp_tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 				pp_tmp = DA9062_DEFAULT_POLLING_MS_PERIOD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 			}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	thermal = devm_kzalloc(&pdev->dev, sizeof(struct da9062_thermal),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 			       GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	if (!thermal) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	thermal->config = match->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 	thermal->hw = chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	thermal->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	INIT_DELAYED_WORK(&thermal->work, da9062_thermal_poll_on);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	mutex_init(&thermal->lock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	thermal->zone = thermal_zone_device_register(thermal->config->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 					1, 0, thermal,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 					&da9062_thermal_ops, NULL, pp_tmp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 					0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	if (IS_ERR(thermal->zone)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 		dev_err(&pdev->dev, "Cannot register thermal zone device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		ret = PTR_ERR(thermal->zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		goto err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	ret = thermal_zone_device_enable(thermal->zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 		dev_err(&pdev->dev, "Cannot enable thermal zone device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 		goto err_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	dev_dbg(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		"TJUNC temperature polling period set at %d ms\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 		thermal->zone->passive_delay);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 	ret = platform_get_irq_byname(pdev, "THERMAL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 		dev_err(&pdev->dev, "Failed to get platform IRQ.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		goto err_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 	thermal->irq = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	ret = request_threaded_irq(thermal->irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 				   da9062_thermal_irq_handler,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 				   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 				   "THERMAL", thermal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 		dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 			"Failed to request thermal device IRQ.\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 		goto err_zone;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	platform_set_drvdata(pdev, thermal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) err_zone:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 	thermal_zone_device_unregister(thermal->zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) err:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) static int da9062_thermal_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 	struct	da9062_thermal *thermal = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 	free_irq(thermal->irq, thermal);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	cancel_delayed_work_sync(&thermal->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 	thermal_zone_device_unregister(thermal->zone);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) static struct platform_driver da9062_thermal_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 	.probe	= da9062_thermal_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	.remove	= da9062_thermal_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 	.driver	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 		.name	= "da9062-thermal",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 		.of_match_table = da9062_compatible_reg_id_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) module_platform_driver(da9062_thermal_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) MODULE_AUTHOR("Steve Twiss");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) MODULE_DESCRIPTION("Thermal TJUNC device driver for Dialog DA9062 and DA9061");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) MODULE_ALIAS("platform:da9062-thermal");