Kuninori Morimoto | c954579 | 2018-07-30 07:56:06 +0000 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 2 | /* |
| 3 | * R-Car THS/TSC thermal sensor driver |
| 4 | * |
| 5 | * Copyright (C) 2012 Renesas Solutions Corp. |
| 6 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 7 | */ |
| 8 | #include <linux/delay.h> |
| 9 | #include <linux/err.h> |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 10 | #include <linux/irq.h> |
| 11 | #include <linux/interrupt.h> |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 12 | #include <linux/io.h> |
| 13 | #include <linux/module.h> |
Rob Herring | f6a756e | 2023-07-14 11:50:07 -0600 | [diff] [blame] | 14 | #include <linux/of.h> |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 15 | #include <linux/platform_device.h> |
Kuninori Morimoto | 51d45d2 | 2013-03-26 06:08:52 +0000 | [diff] [blame] | 16 | #include <linux/pm_runtime.h> |
kuninori.morimoto.gx@renesas.com | d2a73e2 | 2012-12-02 18:48:41 -0800 | [diff] [blame] | 17 | #include <linux/reboot.h> |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 18 | #include <linux/slab.h> |
| 19 | #include <linux/spinlock.h> |
| 20 | #include <linux/thermal.h> |
| 21 | |
Niklas Söderlund | 9d61794 | 2024-05-06 17:40:10 +0200 | [diff] [blame] | 22 | #include "../thermal_hwmon.h" |
Kuninori Morimoto | 64a411e | 2016-07-19 10:01:37 +0000 | [diff] [blame] | 23 | |
kuninori.morimoto.gx@renesas.com | d2a73e2 | 2012-12-02 18:48:41 -0800 | [diff] [blame] | 24 | #define IDLE_INTERVAL 5000 |
| 25 | |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 26 | #define COMMON_STR 0x00 |
| 27 | #define COMMON_ENR 0x04 |
| 28 | #define COMMON_INTMSK 0x0c |
| 29 | |
| 30 | #define REG_POSNEG 0x20 |
| 31 | #define REG_FILONOFF 0x28 |
Kuninori Morimoto | e9137a5 | 2013-01-31 09:03:46 +0000 | [diff] [blame] | 32 | #define REG_THSCR 0x2c |
| 33 | #define REG_THSSR 0x30 |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 34 | #define REG_INTCTRL 0x34 |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 35 | |
| 36 | /* THSCR */ |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 37 | #define CPCTL (1 << 12) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 38 | |
| 39 | /* THSSR */ |
| 40 | #define CTEMP 0x3f |
| 41 | |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 42 | struct rcar_thermal_common { |
| 43 | void __iomem *base; |
| 44 | struct device *dev; |
| 45 | struct list_head head; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 46 | spinlock_t lock; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 47 | }; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 48 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 49 | struct rcar_thermal_chip { |
| 50 | unsigned int use_of_thermal : 1; |
| 51 | unsigned int has_filonoff : 1; |
| 52 | unsigned int irq_per_ch : 1; |
| 53 | unsigned int needs_suspend_resume : 1; |
| 54 | unsigned int nirqs; |
Yoshihiro Kaneko | 20386f0 | 2019-05-08 13:08:45 +0200 | [diff] [blame] | 55 | unsigned int ctemp_bands; |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 56 | }; |
| 57 | |
| 58 | static const struct rcar_thermal_chip rcar_thermal = { |
| 59 | .use_of_thermal = 0, |
| 60 | .has_filonoff = 1, |
| 61 | .irq_per_ch = 0, |
| 62 | .needs_suspend_resume = 0, |
| 63 | .nirqs = 1, |
Yoshihiro Kaneko | 20386f0 | 2019-05-08 13:08:45 +0200 | [diff] [blame] | 64 | .ctemp_bands = 1, |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 65 | }; |
| 66 | |
| 67 | static const struct rcar_thermal_chip rcar_gen2_thermal = { |
| 68 | .use_of_thermal = 1, |
| 69 | .has_filonoff = 1, |
| 70 | .irq_per_ch = 0, |
| 71 | .needs_suspend_resume = 0, |
| 72 | .nirqs = 1, |
Yoshihiro Kaneko | 20386f0 | 2019-05-08 13:08:45 +0200 | [diff] [blame] | 73 | .ctemp_bands = 1, |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 74 | }; |
| 75 | |
| 76 | static const struct rcar_thermal_chip rcar_gen3_thermal = { |
| 77 | .use_of_thermal = 1, |
| 78 | .has_filonoff = 0, |
| 79 | .irq_per_ch = 1, |
| 80 | .needs_suspend_resume = 1, |
| 81 | /* |
| 82 | * The Gen3 chip has 3 interrupts, but this driver uses only 2 |
| 83 | * interrupts to detect a temperature change, rise or fall. |
| 84 | */ |
| 85 | .nirqs = 2, |
Yoshihiro Kaneko | 20386f0 | 2019-05-08 13:08:45 +0200 | [diff] [blame] | 86 | .ctemp_bands = 2, |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 87 | }; |
| 88 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 89 | struct rcar_thermal_priv { |
| 90 | void __iomem *base; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 91 | struct rcar_thermal_common *common; |
| 92 | struct thermal_zone_device *zone; |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 93 | const struct rcar_thermal_chip *chip; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 94 | struct delayed_work work; |
Kuninori Morimoto | b2bbc6a | 2013-01-31 09:03:22 +0000 | [diff] [blame] | 95 | struct mutex lock; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 96 | struct list_head list; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 97 | int id; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 98 | }; |
| 99 | |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 100 | #define rcar_thermal_for_each_priv(pos, common) \ |
| 101 | list_for_each_entry(pos, &common->head, list) |
| 102 | |
Kuninori Morimoto | c499703 | 2012-11-26 02:32:06 +0000 | [diff] [blame] | 103 | #define MCELSIUS(temp) ((temp) * 1000) |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 104 | #define rcar_priv_to_dev(priv) ((priv)->common->dev) |
| 105 | #define rcar_has_irq_support(priv) ((priv)->common->base) |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 106 | #define rcar_id_to_shift(priv) ((priv)->id * 8) |
| 107 | |
Kuninori Morimoto | ca1e455 | 2015-12-15 01:17:07 +0000 | [diff] [blame] | 108 | static const struct of_device_id rcar_thermal_dt_ids[] = { |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 109 | { |
| 110 | .compatible = "renesas,rcar-thermal", |
| 111 | .data = &rcar_thermal, |
| 112 | }, |
| 113 | { |
| 114 | .compatible = "renesas,rcar-gen2-thermal", |
| 115 | .data = &rcar_gen2_thermal, |
| 116 | }, |
| 117 | { |
Fabrizio Castro | b8d3d11 | 2018-12-13 20:23:10 +0000 | [diff] [blame] | 118 | .compatible = "renesas,thermal-r8a774c0", |
| 119 | .data = &rcar_gen3_thermal, |
| 120 | }, |
| 121 | { |
Sergei Shtylyov | 92ca366 | 2018-10-05 00:03:13 +0300 | [diff] [blame] | 122 | .compatible = "renesas,thermal-r8a77970", |
| 123 | .data = &rcar_gen3_thermal, |
| 124 | }, |
| 125 | { |
Yoshihiro Kaneko | e36e130 | 2018-12-17 23:50:21 +0900 | [diff] [blame] | 126 | .compatible = "renesas,thermal-r8a77990", |
| 127 | .data = &rcar_gen3_thermal, |
| 128 | }, |
| 129 | { |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 130 | .compatible = "renesas,thermal-r8a77995", |
| 131 | .data = &rcar_gen3_thermal, |
| 132 | }, |
Kuninori Morimoto | ca1e455 | 2015-12-15 01:17:07 +0000 | [diff] [blame] | 133 | {}, |
| 134 | }; |
| 135 | MODULE_DEVICE_TABLE(of, rcar_thermal_dt_ids); |
| 136 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 137 | /* |
| 138 | * basic functions |
| 139 | */ |
Kuninori Morimoto | e9137a5 | 2013-01-31 09:03:46 +0000 | [diff] [blame] | 140 | #define rcar_thermal_common_read(c, r) \ |
| 141 | _rcar_thermal_common_read(c, COMMON_ ##r) |
| 142 | static u32 _rcar_thermal_common_read(struct rcar_thermal_common *common, |
| 143 | u32 reg) |
| 144 | { |
| 145 | return ioread32(common->base + reg); |
| 146 | } |
| 147 | |
| 148 | #define rcar_thermal_common_write(c, r, d) \ |
| 149 | _rcar_thermal_common_write(c, COMMON_ ##r, d) |
| 150 | static void _rcar_thermal_common_write(struct rcar_thermal_common *common, |
| 151 | u32 reg, u32 data) |
| 152 | { |
| 153 | iowrite32(data, common->base + reg); |
| 154 | } |
| 155 | |
| 156 | #define rcar_thermal_common_bset(c, r, m, d) \ |
| 157 | _rcar_thermal_common_bset(c, COMMON_ ##r, m, d) |
| 158 | static void _rcar_thermal_common_bset(struct rcar_thermal_common *common, |
| 159 | u32 reg, u32 mask, u32 data) |
| 160 | { |
| 161 | u32 val; |
| 162 | |
| 163 | val = ioread32(common->base + reg); |
| 164 | val &= ~mask; |
| 165 | val |= (data & mask); |
| 166 | iowrite32(val, common->base + reg); |
| 167 | } |
Kuninori Morimoto | e9137a5 | 2013-01-31 09:03:46 +0000 | [diff] [blame] | 168 | |
| 169 | #define rcar_thermal_read(p, r) _rcar_thermal_read(p, REG_ ##r) |
| 170 | static u32 _rcar_thermal_read(struct rcar_thermal_priv *priv, u32 reg) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 171 | { |
Kuninori Morimoto | b2bbc6a | 2013-01-31 09:03:22 +0000 | [diff] [blame] | 172 | return ioread32(priv->base + reg); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 173 | } |
| 174 | |
Kuninori Morimoto | e9137a5 | 2013-01-31 09:03:46 +0000 | [diff] [blame] | 175 | #define rcar_thermal_write(p, r, d) _rcar_thermal_write(p, REG_ ##r, d) |
| 176 | static void _rcar_thermal_write(struct rcar_thermal_priv *priv, |
| 177 | u32 reg, u32 data) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 178 | { |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 179 | iowrite32(data, priv->base + reg); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 180 | } |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 181 | |
Kuninori Morimoto | e9137a5 | 2013-01-31 09:03:46 +0000 | [diff] [blame] | 182 | #define rcar_thermal_bset(p, r, m, d) _rcar_thermal_bset(p, REG_ ##r, m, d) |
| 183 | static void _rcar_thermal_bset(struct rcar_thermal_priv *priv, u32 reg, |
| 184 | u32 mask, u32 data) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 185 | { |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 186 | u32 val; |
| 187 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 188 | val = ioread32(priv->base + reg); |
| 189 | val &= ~mask; |
| 190 | val |= (data & mask); |
| 191 | iowrite32(val, priv->base + reg); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 192 | } |
| 193 | |
| 194 | /* |
| 195 | * zone device functions |
| 196 | */ |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 197 | static int rcar_thermal_update_temp(struct rcar_thermal_priv *priv) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 198 | { |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 199 | struct device *dev = rcar_priv_to_dev(priv); |
Niklas Söderlund | b03628b | 2020-05-14 17:25:05 +0200 | [diff] [blame] | 200 | int old, new, ctemp = -EINVAL; |
| 201 | unsigned int i; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 202 | |
Kuninori Morimoto | b2bbc6a | 2013-01-31 09:03:22 +0000 | [diff] [blame] | 203 | mutex_lock(&priv->lock); |
| 204 | |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 205 | /* |
| 206 | * TSC decides a value of CPTAP automatically, |
| 207 | * and this is the conditions which validate interrupt. |
| 208 | */ |
| 209 | rcar_thermal_bset(priv, THSCR, CPCTL, CPCTL); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 210 | |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 211 | old = ~0; |
| 212 | for (i = 0; i < 128; i++) { |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 213 | /* |
| 214 | * we need to wait 300us after changing comparator offset |
| 215 | * to get stable temperature. |
| 216 | * see "Usage Notes" on datasheet |
| 217 | */ |
Geert Uytterhoeven | 263c8c4 | 2020-01-15 13:54:17 +0100 | [diff] [blame] | 218 | usleep_range(300, 400); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 219 | |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 220 | new = rcar_thermal_read(priv, THSSR) & CTEMP; |
| 221 | if (new == old) { |
| 222 | ctemp = new; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 223 | break; |
| 224 | } |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 225 | old = new; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 226 | } |
| 227 | |
Niklas Söderlund | b03628b | 2020-05-14 17:25:05 +0200 | [diff] [blame] | 228 | if (ctemp < 0) { |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 229 | dev_err(dev, "thermal sensor was broken\n"); |
Wei Yongjun | f0e68fc | 2013-02-22 13:22:39 +0000 | [diff] [blame] | 230 | goto err_out_unlock; |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 231 | } |
| 232 | |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 233 | /* |
| 234 | * enable IRQ |
| 235 | */ |
| 236 | if (rcar_has_irq_support(priv)) { |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 237 | if (priv->chip->has_filonoff) |
| 238 | rcar_thermal_write(priv, FILONOFF, 0); |
Kuninori Morimoto | f8f53e1 | 2013-01-31 09:03:11 +0000 | [diff] [blame] | 239 | |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 240 | /* enable Rising/Falling edge interrupt */ |
| 241 | rcar_thermal_write(priv, POSNEG, 0x1); |
| 242 | rcar_thermal_write(priv, INTCTRL, (((ctemp - 0) << 8) | |
| 243 | ((ctemp - 1) << 0))); |
| 244 | } |
| 245 | |
Wei Yongjun | f0e68fc | 2013-02-22 13:22:39 +0000 | [diff] [blame] | 246 | err_out_unlock: |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 247 | mutex_unlock(&priv->lock); |
Niklas Söderlund | 57ed737 | 2020-03-10 18:00:28 +0100 | [diff] [blame] | 248 | |
Niklas Söderlund | b03628b | 2020-05-14 17:25:05 +0200 | [diff] [blame] | 249 | return ctemp; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 250 | } |
| 251 | |
Kuninori Morimoto | 8b477ea | 2016-01-28 02:45:08 +0000 | [diff] [blame] | 252 | static int rcar_thermal_get_current_temp(struct rcar_thermal_priv *priv, |
| 253 | int *temp) |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 254 | { |
Niklas Söderlund | 0fa0420 | 2020-03-10 18:00:29 +0100 | [diff] [blame] | 255 | int ctemp; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 256 | |
Niklas Söderlund | 57ed737 | 2020-03-10 18:00:28 +0100 | [diff] [blame] | 257 | ctemp = rcar_thermal_update_temp(priv); |
| 258 | if (ctemp < 0) |
| 259 | return ctemp; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 260 | |
Niklas Söderlund | dff6d4f | 2020-01-17 17:05:53 +0100 | [diff] [blame] | 261 | /* Guaranteed operating range is -45C to 125C. */ |
Kuninori Morimoto | 5440c40 | 2015-12-15 01:18:13 +0000 | [diff] [blame] | 262 | |
Niklas Söderlund | 0fa0420 | 2020-03-10 18:00:29 +0100 | [diff] [blame] | 263 | if (priv->chip->ctemp_bands == 1) |
| 264 | *temp = MCELSIUS((ctemp * 5) - 65); |
| 265 | else if (ctemp < 24) |
| 266 | *temp = MCELSIUS(((ctemp * 55) - 720) / 10); |
| 267 | else |
| 268 | *temp = MCELSIUS((ctemp * 5) - 60); |
Kuninori Morimoto | 5440c40 | 2015-12-15 01:18:13 +0000 | [diff] [blame] | 269 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 270 | return 0; |
| 271 | } |
| 272 | |
Kuninori Morimoto | 8b477ea | 2016-01-28 02:45:08 +0000 | [diff] [blame] | 273 | static int rcar_thermal_get_temp(struct thermal_zone_device *zone, int *temp) |
| 274 | { |
Daniel Lezcano | 5f68d07 | 2023-03-01 21:14:30 +0100 | [diff] [blame] | 275 | struct rcar_thermal_priv *priv = thermal_zone_device_priv(zone); |
Kuninori Morimoto | 8b477ea | 2016-01-28 02:45:08 +0000 | [diff] [blame] | 276 | |
| 277 | return rcar_thermal_get_current_temp(priv, temp); |
| 278 | } |
| 279 | |
Daniel Lezcano | 0b6a3e4 | 2022-10-03 11:25:55 +0200 | [diff] [blame] | 280 | static struct thermal_zone_device_ops rcar_thermal_zone_ops = { |
Daniel Lezcano | 2ebd4f2 | 2022-08-05 00:43:33 +0200 | [diff] [blame] | 281 | .get_temp = rcar_thermal_get_temp, |
Kuninori Morimoto | 8b477ea | 2016-01-28 02:45:08 +0000 | [diff] [blame] | 282 | }; |
| 283 | |
Daniel Lezcano | 0b6a3e4 | 2022-10-03 11:25:55 +0200 | [diff] [blame] | 284 | static struct thermal_trip trips[] = { |
| 285 | { .type = THERMAL_TRIP_CRITICAL, .temperature = 90000 } |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 286 | }; |
| 287 | |
| 288 | /* |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 289 | * interrupt |
| 290 | */ |
| 291 | #define rcar_thermal_irq_enable(p) _rcar_thermal_irq_ctrl(p, 1) |
| 292 | #define rcar_thermal_irq_disable(p) _rcar_thermal_irq_ctrl(p, 0) |
| 293 | static void _rcar_thermal_irq_ctrl(struct rcar_thermal_priv *priv, int enable) |
| 294 | { |
| 295 | struct rcar_thermal_common *common = priv->common; |
| 296 | unsigned long flags; |
| 297 | u32 mask = 0x3 << rcar_id_to_shift(priv); /* enable Rising/Falling */ |
| 298 | |
Kuninori Morimoto | ffbcdf8 | 2015-12-15 01:17:56 +0000 | [diff] [blame] | 299 | if (!rcar_has_irq_support(priv)) |
| 300 | return; |
| 301 | |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 302 | spin_lock_irqsave(&common->lock, flags); |
| 303 | |
| 304 | rcar_thermal_common_bset(common, INTMSK, mask, enable ? 0 : mask); |
| 305 | |
| 306 | spin_unlock_irqrestore(&common->lock, flags); |
| 307 | } |
| 308 | |
| 309 | static void rcar_thermal_work(struct work_struct *work) |
| 310 | { |
| 311 | struct rcar_thermal_priv *priv; |
Kuninori Morimoto | a1ade56 | 2015-12-15 01:17:40 +0000 | [diff] [blame] | 312 | int ret; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 313 | |
| 314 | priv = container_of(work, struct rcar_thermal_priv, work.work); |
| 315 | |
Kuninori Morimoto | a1ade56 | 2015-12-15 01:17:40 +0000 | [diff] [blame] | 316 | ret = rcar_thermal_update_temp(priv); |
| 317 | if (ret < 0) |
| 318 | return; |
| 319 | |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 320 | rcar_thermal_irq_enable(priv); |
Patrick Titiano | 9477165 | 2014-02-28 14:10:04 +0100 | [diff] [blame] | 321 | |
Niklas Söderlund | 7617e77 | 2020-03-10 18:00:27 +0100 | [diff] [blame] | 322 | thermal_zone_device_update(priv->zone, THERMAL_EVENT_UNSPECIFIED); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 323 | } |
| 324 | |
| 325 | static u32 rcar_thermal_had_changed(struct rcar_thermal_priv *priv, u32 status) |
| 326 | { |
| 327 | struct device *dev = rcar_priv_to_dev(priv); |
| 328 | |
| 329 | status = (status >> rcar_id_to_shift(priv)) & 0x3; |
| 330 | |
Patrick Titiano | 206c0cb | 2014-02-28 14:10:03 +0100 | [diff] [blame] | 331 | if (status) { |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 332 | dev_dbg(dev, "thermal%d %s%s\n", |
| 333 | priv->id, |
| 334 | (status & 0x2) ? "Rising " : "", |
| 335 | (status & 0x1) ? "Falling" : ""); |
| 336 | } |
| 337 | |
| 338 | return status; |
| 339 | } |
| 340 | |
| 341 | static irqreturn_t rcar_thermal_irq(int irq, void *data) |
| 342 | { |
| 343 | struct rcar_thermal_common *common = data; |
| 344 | struct rcar_thermal_priv *priv; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 345 | u32 status, mask; |
| 346 | |
Tian Tao | 4eb7d0c | 2020-10-27 09:06:30 +0800 | [diff] [blame] | 347 | spin_lock(&common->lock); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 348 | |
| 349 | mask = rcar_thermal_common_read(common, INTMSK); |
| 350 | status = rcar_thermal_common_read(common, STR); |
| 351 | rcar_thermal_common_write(common, STR, 0x000F0F0F & mask); |
| 352 | |
Tian Tao | 4eb7d0c | 2020-10-27 09:06:30 +0800 | [diff] [blame] | 353 | spin_unlock(&common->lock); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 354 | |
| 355 | status = status & ~mask; |
| 356 | |
| 357 | /* |
| 358 | * check the status |
| 359 | */ |
| 360 | rcar_thermal_for_each_priv(priv, common) { |
| 361 | if (rcar_thermal_had_changed(priv, status)) { |
| 362 | rcar_thermal_irq_disable(priv); |
Geert Uytterhoeven | 3a31386 | 2018-10-12 09:20:15 +0200 | [diff] [blame] | 363 | queue_delayed_work(system_freezable_wq, &priv->work, |
| 364 | msecs_to_jiffies(300)); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 365 | } |
| 366 | } |
| 367 | |
| 368 | return IRQ_HANDLED; |
| 369 | } |
| 370 | |
| 371 | /* |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 372 | * platform functions |
| 373 | */ |
Uwe Kleine-König | 03a5a75 | 2023-09-27 21:37:26 +0200 | [diff] [blame] | 374 | static void rcar_thermal_remove(struct platform_device *pdev) |
Kuninori Morimoto | 84f0e49 | 2015-11-10 02:12:06 +0000 | [diff] [blame] | 375 | { |
| 376 | struct rcar_thermal_common *common = platform_get_drvdata(pdev); |
| 377 | struct device *dev = &pdev->dev; |
| 378 | struct rcar_thermal_priv *priv; |
| 379 | |
| 380 | rcar_thermal_for_each_priv(priv, common) { |
Kuninori Morimoto | ffbcdf8 | 2015-12-15 01:17:56 +0000 | [diff] [blame] | 381 | rcar_thermal_irq_disable(priv); |
Geert Uytterhoeven | 697ee78 | 2018-10-12 09:20:16 +0200 | [diff] [blame] | 382 | cancel_delayed_work_sync(&priv->work); |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 383 | if (priv->chip->use_of_thermal) |
Kuninori Morimoto | 64a411e | 2016-07-19 10:01:37 +0000 | [diff] [blame] | 384 | thermal_remove_hwmon_sysfs(priv->zone); |
Bui Duc Phuc | d4b23c5c | 2016-08-22 03:19:49 +0000 | [diff] [blame] | 385 | else |
| 386 | thermal_zone_device_unregister(priv->zone); |
Kuninori Morimoto | 84f0e49 | 2015-11-10 02:12:06 +0000 | [diff] [blame] | 387 | } |
| 388 | |
| 389 | pm_runtime_put(dev); |
| 390 | pm_runtime_disable(dev); |
Kuninori Morimoto | 84f0e49 | 2015-11-10 02:12:06 +0000 | [diff] [blame] | 391 | } |
| 392 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 393 | static int rcar_thermal_probe(struct platform_device *pdev) |
| 394 | { |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 395 | struct rcar_thermal_common *common; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 396 | struct rcar_thermal_priv *priv; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 397 | struct device *dev = &pdev->dev; |
Lad Prabhakar | 3277e02 | 2022-01-10 14:40:39 +0000 | [diff] [blame] | 398 | struct resource *res; |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 399 | const struct rcar_thermal_chip *chip = of_device_get_match_data(dev); |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 400 | int mres = 0; |
| 401 | int i; |
Devendra Naga | fb84d99 | 2013-03-04 16:52:47 +0000 | [diff] [blame] | 402 | int ret = -ENODEV; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 403 | int idle = IDLE_INTERVAL; |
Yoshihiro Shimoda | 1131374 | 2015-01-07 10:13:10 +0900 | [diff] [blame] | 404 | u32 enr_bits = 0; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 405 | |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 406 | common = devm_kzalloc(dev, sizeof(*common), GFP_KERNEL); |
Jingoo Han | b0a60d8 | 2014-05-07 15:03:25 +0900 | [diff] [blame] | 407 | if (!common) |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 408 | return -ENOMEM; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 409 | |
Kuninori Morimoto | 84f0e49 | 2015-11-10 02:12:06 +0000 | [diff] [blame] | 410 | platform_set_drvdata(pdev, common); |
| 411 | |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 412 | INIT_LIST_HEAD(&common->head); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 413 | spin_lock_init(&common->lock); |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 414 | common->dev = dev; |
| 415 | |
Kuninori Morimoto | 51d45d2 | 2013-03-26 06:08:52 +0000 | [diff] [blame] | 416 | pm_runtime_enable(dev); |
| 417 | pm_runtime_get_sync(dev); |
| 418 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 419 | for (i = 0; i < chip->nirqs; i++) { |
Lad Prabhakar | 3277e02 | 2022-01-10 14:40:39 +0000 | [diff] [blame] | 420 | int irq; |
| 421 | |
| 422 | ret = platform_get_irq_optional(pdev, i); |
| 423 | if (ret < 0 && ret != -ENXIO) |
| 424 | goto error_unregister; |
| 425 | if (ret > 0) |
| 426 | irq = ret; |
| 427 | else |
| 428 | break; |
| 429 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 430 | if (!common->base) { |
| 431 | /* |
| 432 | * platform has IRQ support. |
| 433 | * Then, driver uses common registers |
| 434 | * rcar_has_irq_support() will be enabled |
| 435 | */ |
| 436 | res = platform_get_resource(pdev, IORESOURCE_MEM, |
| 437 | mres++); |
| 438 | common->base = devm_ioremap_resource(dev, res); |
Niklas Söderlund | 39056e8 | 2020-03-10 12:47:09 +0100 | [diff] [blame] | 439 | if (IS_ERR(common->base)) { |
| 440 | ret = PTR_ERR(common->base); |
| 441 | goto error_unregister; |
| 442 | } |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 443 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 444 | idle = 0; /* polling delay is not needed */ |
| 445 | } |
| 446 | |
Lad Prabhakar | 3277e02 | 2022-01-10 14:40:39 +0000 | [diff] [blame] | 447 | ret = devm_request_irq(dev, irq, rcar_thermal_irq, |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 448 | IRQF_SHARED, dev_name(dev), common); |
| 449 | if (ret) { |
| 450 | dev_err(dev, "irq request failed\n "); |
| 451 | goto error_unregister; |
| 452 | } |
| 453 | |
| 454 | /* update ENR bits */ |
| 455 | if (chip->irq_per_ch) |
| 456 | enr_bits |= 1 << i; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 457 | } |
| 458 | |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 459 | for (i = 0;; i++) { |
| 460 | res = platform_get_resource(pdev, IORESOURCE_MEM, mres++); |
| 461 | if (!res) |
| 462 | break; |
| 463 | |
| 464 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); |
| 465 | if (!priv) { |
Kuninori Morimoto | 1dc2082 | 2013-03-26 06:08:10 +0000 | [diff] [blame] | 466 | ret = -ENOMEM; |
| 467 | goto error_unregister; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 468 | } |
| 469 | |
Sachin Kamat | 5095526 | 2013-03-04 06:45:33 +0000 | [diff] [blame] | 470 | priv->base = devm_ioremap_resource(dev, res); |
Kuninori Morimoto | 1dc2082 | 2013-03-26 06:08:10 +0000 | [diff] [blame] | 471 | if (IS_ERR(priv->base)) { |
| 472 | ret = PTR_ERR(priv->base); |
| 473 | goto error_unregister; |
| 474 | } |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 475 | |
| 476 | priv->common = common; |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 477 | priv->id = i; |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 478 | priv->chip = chip; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 479 | mutex_init(&priv->lock); |
| 480 | INIT_LIST_HEAD(&priv->list); |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 481 | INIT_DELAYED_WORK(&priv->work, rcar_thermal_work); |
Kuninori Morimoto | a1ade56 | 2015-12-15 01:17:40 +0000 | [diff] [blame] | 482 | ret = rcar_thermal_update_temp(priv); |
| 483 | if (ret < 0) |
| 484 | goto error_unregister; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 485 | |
Geert Uytterhoeven | 392573b | 2020-08-19 11:27:16 +0200 | [diff] [blame] | 486 | if (chip->use_of_thermal) { |
Daniel Lezcano | 2ebd4f2 | 2022-08-05 00:43:33 +0200 | [diff] [blame] | 487 | priv->zone = devm_thermal_of_zone_register( |
Kuninori Morimoto | 8b477ea | 2016-01-28 02:45:08 +0000 | [diff] [blame] | 488 | dev, i, priv, |
Daniel Lezcano | 0b6a3e4 | 2022-10-03 11:25:55 +0200 | [diff] [blame] | 489 | &rcar_thermal_zone_ops); |
Geert Uytterhoeven | 392573b | 2020-08-19 11:27:16 +0200 | [diff] [blame] | 490 | } else { |
Daniel Lezcano | 0b6a3e4 | 2022-10-03 11:25:55 +0200 | [diff] [blame] | 491 | priv->zone = thermal_zone_device_register_with_trips( |
Rafael J. Wysocki | 4a62d58 | 2024-02-22 19:09:16 +0100 | [diff] [blame] | 492 | "rcar_thermal", trips, ARRAY_SIZE(trips), priv, |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 493 | &rcar_thermal_zone_ops, NULL, 0, |
Kuninori Morimoto | e0a5172 | 2013-01-31 09:04:48 +0000 | [diff] [blame] | 494 | idle); |
Andrzej Pietrasiewicz | bbcf90c | 2020-06-29 14:29:22 +0200 | [diff] [blame] | 495 | |
| 496 | ret = thermal_zone_device_enable(priv->zone); |
| 497 | if (ret) { |
| 498 | thermal_zone_device_unregister(priv->zone); |
| 499 | priv->zone = ERR_PTR(ret); |
| 500 | } |
| 501 | } |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 502 | if (IS_ERR(priv->zone)) { |
| 503 | dev_err(dev, "can't register thermal zone\n"); |
Devendra Naga | fb84d99 | 2013-03-04 16:52:47 +0000 | [diff] [blame] | 504 | ret = PTR_ERR(priv->zone); |
Dirk Behme | 87260d3 | 2016-04-21 12:24:55 +0200 | [diff] [blame] | 505 | priv->zone = NULL; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 506 | goto error_unregister; |
| 507 | } |
| 508 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 509 | if (chip->use_of_thermal) { |
Kuninori Morimoto | 64a411e | 2016-07-19 10:01:37 +0000 | [diff] [blame] | 510 | ret = thermal_add_hwmon_sysfs(priv->zone); |
| 511 | if (ret) |
| 512 | goto error_unregister; |
| 513 | } |
| 514 | |
Kuninori Morimoto | ffbcdf8 | 2015-12-15 01:17:56 +0000 | [diff] [blame] | 515 | rcar_thermal_irq_enable(priv); |
Kuninori Morimoto | 1dc2082 | 2013-03-26 06:08:10 +0000 | [diff] [blame] | 516 | |
| 517 | list_move_tail(&priv->list, &common->head); |
Yoshihiro Shimoda | 1131374 | 2015-01-07 10:13:10 +0900 | [diff] [blame] | 518 | |
| 519 | /* update ENR bits */ |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 520 | if (!chip->irq_per_ch) |
| 521 | enr_bits |= 3 << (i * 8); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 522 | } |
| 523 | |
Simon Horman | 542cdf4 | 2018-07-24 13:14:13 +0200 | [diff] [blame] | 524 | if (common->base && enr_bits) |
Yoshihiro Shimoda | 1131374 | 2015-01-07 10:13:10 +0900 | [diff] [blame] | 525 | rcar_thermal_common_write(common, ENR, enr_bits); |
| 526 | |
Laurent Pinchart | 3db46c9 | 2013-05-14 23:00:32 +0000 | [diff] [blame] | 527 | dev_info(dev, "%d sensor probed\n", i); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 528 | |
| 529 | return 0; |
Kuninori Morimoto | 3676d1d | 2013-01-31 09:03:33 +0000 | [diff] [blame] | 530 | |
| 531 | error_unregister: |
Kuninori Morimoto | 84f0e49 | 2015-11-10 02:12:06 +0000 | [diff] [blame] | 532 | rcar_thermal_remove(pdev); |
Kuninori Morimoto | 51d45d2 | 2013-03-26 06:08:52 +0000 | [diff] [blame] | 533 | |
Devendra Naga | fb84d99 | 2013-03-04 16:52:47 +0000 | [diff] [blame] | 534 | return ret; |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 535 | } |
| 536 | |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 537 | #ifdef CONFIG_PM_SLEEP |
| 538 | static int rcar_thermal_suspend(struct device *dev) |
| 539 | { |
| 540 | struct rcar_thermal_common *common = dev_get_drvdata(dev); |
| 541 | struct rcar_thermal_priv *priv = list_first_entry(&common->head, |
| 542 | typeof(*priv), list); |
| 543 | |
| 544 | if (priv->chip->needs_suspend_resume) { |
| 545 | rcar_thermal_common_write(common, ENR, 0); |
| 546 | rcar_thermal_irq_disable(priv); |
| 547 | rcar_thermal_bset(priv, THSCR, CPCTL, 0); |
| 548 | } |
| 549 | |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | static int rcar_thermal_resume(struct device *dev) |
| 554 | { |
| 555 | struct rcar_thermal_common *common = dev_get_drvdata(dev); |
| 556 | struct rcar_thermal_priv *priv = list_first_entry(&common->head, |
| 557 | typeof(*priv), list); |
| 558 | int ret; |
| 559 | |
| 560 | if (priv->chip->needs_suspend_resume) { |
| 561 | ret = rcar_thermal_update_temp(priv); |
| 562 | if (ret < 0) |
| 563 | return ret; |
| 564 | rcar_thermal_irq_enable(priv); |
| 565 | rcar_thermal_common_write(common, ENR, 0x03); |
| 566 | } |
| 567 | |
| 568 | return 0; |
| 569 | } |
| 570 | #endif |
| 571 | |
| 572 | static SIMPLE_DEV_PM_OPS(rcar_thermal_pm_ops, rcar_thermal_suspend, |
| 573 | rcar_thermal_resume); |
| 574 | |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 575 | static struct platform_driver rcar_thermal_driver = { |
| 576 | .driver = { |
| 577 | .name = "rcar_thermal", |
Yoshihiro Kaneko | 1969d9d | 2018-05-20 18:26:17 +0900 | [diff] [blame] | 578 | .pm = &rcar_thermal_pm_ops, |
Kuninori Morimoto | 76cc188 | 2013-01-31 09:05:26 +0000 | [diff] [blame] | 579 | .of_match_table = rcar_thermal_dt_ids, |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 580 | }, |
| 581 | .probe = rcar_thermal_probe, |
Uwe Kleine-König | 03a5a75 | 2023-09-27 21:37:26 +0200 | [diff] [blame] | 582 | .remove_new = rcar_thermal_remove, |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 583 | }; |
| 584 | module_platform_driver(rcar_thermal_driver); |
| 585 | |
Kuninori Morimoto | c954579 | 2018-07-30 07:56:06 +0000 | [diff] [blame] | 586 | MODULE_LICENSE("GPL v2"); |
Kuninori Morimoto | 1e426ff | 2012-07-21 10:53:48 +1000 | [diff] [blame] | 587 | MODULE_DESCRIPTION("R-Car THS/TSC thermal sensor driver"); |
| 588 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); |