Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 1 | /* |
| 2 | * drivers/char/watchdog/sp805-wdt.c |
| 3 | * |
| 4 | * Watchdog driver for ARM SP805 watchdog module |
| 5 | * |
| 6 | * Copyright (C) 2010 ST Microelectronics |
Viresh Kumar | 10d8935 | 2012-06-20 12:53:02 -0700 | [diff] [blame] | 7 | * Viresh Kumar <viresh.linux@gmail.com> |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 8 | * |
| 9 | * This file is licensed under the terms of the GNU General Public |
| 10 | * License version 2 or later. This program is licensed "as is" without any |
| 11 | * warranty of any kind, whether express or implied. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/device.h> |
| 15 | #include <linux/resource.h> |
| 16 | #include <linux/amba/bus.h> |
| 17 | #include <linux/bitops.h> |
| 18 | #include <linux/clk.h> |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 19 | #include <linux/io.h> |
| 20 | #include <linux/ioport.h> |
| 21 | #include <linux/kernel.h> |
| 22 | #include <linux/math64.h> |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 23 | #include <linux/module.h> |
| 24 | #include <linux/moduleparam.h> |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 25 | #include <linux/pm.h> |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 26 | #include <linux/slab.h> |
| 27 | #include <linux/spinlock.h> |
| 28 | #include <linux/types.h> |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 29 | #include <linux/watchdog.h> |
| 30 | |
| 31 | /* default timeout in seconds */ |
| 32 | #define DEFAULT_TIMEOUT 60 |
| 33 | |
| 34 | #define MODULE_NAME "sp805-wdt" |
| 35 | |
| 36 | /* watchdog register offsets and masks */ |
| 37 | #define WDTLOAD 0x000 |
| 38 | #define LOAD_MIN 0x00000001 |
| 39 | #define LOAD_MAX 0xFFFFFFFF |
| 40 | #define WDTVALUE 0x004 |
| 41 | #define WDTCONTROL 0x008 |
| 42 | /* control register masks */ |
| 43 | #define INT_ENABLE (1 << 0) |
| 44 | #define RESET_ENABLE (1 << 1) |
| 45 | #define WDTINTCLR 0x00C |
| 46 | #define WDTRIS 0x010 |
| 47 | #define WDTMIS 0x014 |
| 48 | #define INT_MASK (1 << 0) |
| 49 | #define WDTLOCK 0xC00 |
| 50 | #define UNLOCK 0x1ACCE551 |
| 51 | #define LOCK 0x00000001 |
| 52 | |
| 53 | /** |
| 54 | * struct sp805_wdt: sp805 wdt device structure |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 55 | * @wdd: instance of struct watchdog_device |
Viresh Kumar | bfae14b | 2012-03-12 09:52:13 +0530 | [diff] [blame] | 56 | * @lock: spin lock protecting dev structure and io access |
| 57 | * @base: base address of wdt |
| 58 | * @clk: clock structure of wdt |
| 59 | * @adev: amba device structure of wdt |
| 60 | * @status: current status of wdt |
| 61 | * @load_val: load value to be set for current timeout |
| 62 | * @timeout: current programmed timeout |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 63 | */ |
| 64 | struct sp805_wdt { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 65 | struct watchdog_device wdd; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 66 | spinlock_t lock; |
| 67 | void __iomem *base; |
| 68 | struct clk *clk; |
| 69 | struct amba_device *adev; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 70 | unsigned int load_val; |
| 71 | unsigned int timeout; |
| 72 | }; |
| 73 | |
Wim Van Sebroeck | 86a1e18 | 2012-03-05 16:51:11 +0100 | [diff] [blame] | 74 | static bool nowayout = WATCHDOG_NOWAYOUT; |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 75 | module_param(nowayout, bool, 0); |
| 76 | MODULE_PARM_DESC(nowayout, |
| 77 | "Set to 1 to keep watchdog running after device release"); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 78 | |
| 79 | /* This routine finds load value that will reset system in required timout */ |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 80 | static int wdt_setload(struct watchdog_device *wdd, unsigned int timeout) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 81 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 82 | struct sp805_wdt *wdt = watchdog_get_drvdata(wdd); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 83 | u64 load, rate; |
| 84 | |
| 85 | rate = clk_get_rate(wdt->clk); |
| 86 | |
| 87 | /* |
| 88 | * sp805 runs counter with given value twice, after the end of first |
| 89 | * counter it gives an interrupt and then starts counter again. If |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 90 | * interrupt already occurred then it resets the system. This is why |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 91 | * load is half of what should be required. |
| 92 | */ |
| 93 | load = div_u64(rate, 2) * timeout - 1; |
| 94 | |
| 95 | load = (load > LOAD_MAX) ? LOAD_MAX : load; |
| 96 | load = (load < LOAD_MIN) ? LOAD_MIN : load; |
| 97 | |
| 98 | spin_lock(&wdt->lock); |
| 99 | wdt->load_val = load; |
| 100 | /* roundup timeout to closest positive integer value */ |
| 101 | wdt->timeout = div_u64((load + 1) * 2 + (rate / 2), rate); |
| 102 | spin_unlock(&wdt->lock); |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 103 | |
| 104 | return 0; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | /* returns number of seconds left for reset to occur */ |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 108 | static unsigned int wdt_timeleft(struct watchdog_device *wdd) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 109 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 110 | struct sp805_wdt *wdt = watchdog_get_drvdata(wdd); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 111 | u64 load, rate; |
| 112 | |
| 113 | rate = clk_get_rate(wdt->clk); |
| 114 | |
| 115 | spin_lock(&wdt->lock); |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 116 | load = readl_relaxed(wdt->base + WDTVALUE); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 117 | |
| 118 | /*If the interrupt is inactive then time left is WDTValue + WDTLoad. */ |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 119 | if (!(readl_relaxed(wdt->base + WDTRIS) & INT_MASK)) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 120 | load += wdt->load_val + 1; |
| 121 | spin_unlock(&wdt->lock); |
| 122 | |
| 123 | return div_u64(load, rate); |
| 124 | } |
| 125 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 126 | static int wdt_config(struct watchdog_device *wdd, bool ping) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 127 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 128 | struct sp805_wdt *wdt = watchdog_get_drvdata(wdd); |
| 129 | int ret; |
| 130 | |
| 131 | if (!ping) { |
Viresh Kumar | d9df0ef | 2012-03-12 09:52:17 +0530 | [diff] [blame] | 132 | |
Julia Lawall | 63fbbc1 | 2012-08-26 18:01:02 +0200 | [diff] [blame] | 133 | ret = clk_prepare_enable(wdt->clk); |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 134 | if (ret) { |
| 135 | dev_err(&wdt->adev->dev, "clock enable fail"); |
| 136 | return ret; |
| 137 | } |
| 138 | } |
| 139 | |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 140 | spin_lock(&wdt->lock); |
| 141 | |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 142 | writel_relaxed(UNLOCK, wdt->base + WDTLOCK); |
| 143 | writel_relaxed(wdt->load_val, wdt->base + WDTLOAD); |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 144 | |
| 145 | if (!ping) { |
| 146 | writel_relaxed(INT_MASK, wdt->base + WDTINTCLR); |
| 147 | writel_relaxed(INT_ENABLE | RESET_ENABLE, wdt->base + |
| 148 | WDTCONTROL); |
| 149 | } |
| 150 | |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 151 | writel_relaxed(LOCK, wdt->base + WDTLOCK); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 152 | |
Nick Bowler | 081d83a | 2011-07-15 11:04:02 -0400 | [diff] [blame] | 153 | /* Flush posted writes. */ |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 154 | readl_relaxed(wdt->base + WDTLOCK); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 155 | spin_unlock(&wdt->lock); |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 156 | |
| 157 | return 0; |
| 158 | } |
| 159 | |
| 160 | static int wdt_ping(struct watchdog_device *wdd) |
| 161 | { |
| 162 | return wdt_config(wdd, true); |
| 163 | } |
| 164 | |
| 165 | /* enables watchdog timers reset */ |
| 166 | static int wdt_enable(struct watchdog_device *wdd) |
| 167 | { |
| 168 | return wdt_config(wdd, false); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 169 | } |
| 170 | |
| 171 | /* disables watchdog timers reset */ |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 172 | static int wdt_disable(struct watchdog_device *wdd) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 173 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 174 | struct sp805_wdt *wdt = watchdog_get_drvdata(wdd); |
| 175 | |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 176 | spin_lock(&wdt->lock); |
| 177 | |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 178 | writel_relaxed(UNLOCK, wdt->base + WDTLOCK); |
| 179 | writel_relaxed(0, wdt->base + WDTCONTROL); |
| 180 | writel_relaxed(LOCK, wdt->base + WDTLOCK); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 181 | |
Nick Bowler | 081d83a | 2011-07-15 11:04:02 -0400 | [diff] [blame] | 182 | /* Flush posted writes. */ |
Viresh Kumar | d2e8919 | 2012-03-12 09:52:14 +0530 | [diff] [blame] | 183 | readl_relaxed(wdt->base + WDTLOCK); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 184 | spin_unlock(&wdt->lock); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 185 | |
Julia Lawall | 63fbbc1 | 2012-08-26 18:01:02 +0200 | [diff] [blame] | 186 | clk_disable_unprepare(wdt->clk); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 191 | static const struct watchdog_info wdt_info = { |
| 192 | .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING, |
| 193 | .identity = MODULE_NAME, |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 194 | }; |
| 195 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 196 | static const struct watchdog_ops wdt_ops = { |
| 197 | .owner = THIS_MODULE, |
| 198 | .start = wdt_enable, |
| 199 | .stop = wdt_disable, |
| 200 | .ping = wdt_ping, |
| 201 | .set_timeout = wdt_setload, |
| 202 | .get_timeleft = wdt_timeleft, |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 203 | }; |
| 204 | |
Bill Pemberton | 2d991a1 | 2012-11-19 13:21:41 -0500 | [diff] [blame] | 205 | static int |
Russell King | aa25afa | 2011-02-19 15:55:00 +0000 | [diff] [blame] | 206 | sp805_wdt_probe(struct amba_device *adev, const struct amba_id *id) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 207 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 208 | struct sp805_wdt *wdt; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 209 | int ret = 0; |
| 210 | |
Viresh Kumar | fb35a5a | 2012-03-12 09:52:15 +0530 | [diff] [blame] | 211 | wdt = devm_kzalloc(&adev->dev, sizeof(*wdt), GFP_KERNEL); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 212 | if (!wdt) { |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 213 | ret = -ENOMEM; |
Viresh Kumar | fb35a5a | 2012-03-12 09:52:15 +0530 | [diff] [blame] | 214 | goto err; |
| 215 | } |
| 216 | |
Jingoo Han | 9d11e4f | 2014-02-11 21:45:56 +0900 | [diff] [blame] | 217 | wdt->base = devm_ioremap_resource(&adev->dev, &adev->res); |
| 218 | if (IS_ERR(wdt->base)) |
| 219 | return PTR_ERR(wdt->base); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 220 | |
Jingoo Han | 07bf971 | 2013-04-29 18:16:49 +0900 | [diff] [blame] | 221 | wdt->clk = devm_clk_get(&adev->dev, NULL); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 222 | if (IS_ERR(wdt->clk)) { |
| 223 | dev_warn(&adev->dev, "Clock not found\n"); |
| 224 | ret = PTR_ERR(wdt->clk); |
Viresh Kumar | fb35a5a | 2012-03-12 09:52:15 +0530 | [diff] [blame] | 225 | goto err; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 226 | } |
| 227 | |
| 228 | wdt->adev = adev; |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 229 | wdt->wdd.info = &wdt_info; |
| 230 | wdt->wdd.ops = &wdt_ops; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 231 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 232 | spin_lock_init(&wdt->lock); |
| 233 | watchdog_set_nowayout(&wdt->wdd, nowayout); |
| 234 | watchdog_set_drvdata(&wdt->wdd, wdt); |
| 235 | wdt_setload(&wdt->wdd, DEFAULT_TIMEOUT); |
| 236 | |
| 237 | ret = watchdog_register_device(&wdt->wdd); |
| 238 | if (ret) { |
| 239 | dev_err(&adev->dev, "watchdog_register_device() failed: %d\n", |
| 240 | ret); |
Jingoo Han | 07bf971 | 2013-04-29 18:16:49 +0900 | [diff] [blame] | 241 | goto err; |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 242 | } |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 243 | amba_set_drvdata(adev, wdt); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 244 | |
| 245 | dev_info(&adev->dev, "registration successful\n"); |
| 246 | return 0; |
| 247 | |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 248 | err: |
| 249 | dev_err(&adev->dev, "Probe Failed!!!\n"); |
| 250 | return ret; |
| 251 | } |
| 252 | |
Bill Pemberton | 4b12b89 | 2012-11-19 13:26:24 -0500 | [diff] [blame] | 253 | static int sp805_wdt_remove(struct amba_device *adev) |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 254 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 255 | struct sp805_wdt *wdt = amba_get_drvdata(adev); |
| 256 | |
| 257 | watchdog_unregister_device(&wdt->wdd); |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 258 | watchdog_set_drvdata(&wdt->wdd, NULL); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 259 | |
| 260 | return 0; |
| 261 | } |
| 262 | |
Russell King | 60d6dd5 | 2012-11-08 10:51:03 +0000 | [diff] [blame] | 263 | static int __maybe_unused sp805_wdt_suspend(struct device *dev) |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 264 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 265 | struct sp805_wdt *wdt = dev_get_drvdata(dev); |
| 266 | |
| 267 | if (watchdog_active(&wdt->wdd)) |
| 268 | return wdt_disable(&wdt->wdd); |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 269 | |
| 270 | return 0; |
| 271 | } |
| 272 | |
Russell King | 60d6dd5 | 2012-11-08 10:51:03 +0000 | [diff] [blame] | 273 | static int __maybe_unused sp805_wdt_resume(struct device *dev) |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 274 | { |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 275 | struct sp805_wdt *wdt = dev_get_drvdata(dev); |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 276 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 277 | if (watchdog_active(&wdt->wdd)) |
| 278 | return wdt_enable(&wdt->wdd); |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 279 | |
Viresh Kumar | 4a51653 | 2012-03-12 09:52:16 +0530 | [diff] [blame] | 280 | return 0; |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 281 | } |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 282 | |
| 283 | static SIMPLE_DEV_PM_OPS(sp805_wdt_dev_pm_ops, sp805_wdt_suspend, |
| 284 | sp805_wdt_resume); |
| 285 | |
Nick Bowler | bb558da | 2011-12-19 11:22:36 -0500 | [diff] [blame] | 286 | static struct amba_id sp805_wdt_ids[] = { |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 287 | { |
| 288 | .id = 0x00141805, |
| 289 | .mask = 0x00ffffff, |
| 290 | }, |
| 291 | { 0, 0 }, |
| 292 | }; |
| 293 | |
Dave Martin | 17885b0 | 2011-10-05 15:15:23 +0100 | [diff] [blame] | 294 | MODULE_DEVICE_TABLE(amba, sp805_wdt_ids); |
| 295 | |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 296 | static struct amba_driver sp805_wdt_driver = { |
| 297 | .drv = { |
| 298 | .name = MODULE_NAME, |
Viresh Kumar | 16ac4ab | 2012-02-24 15:12:37 +0530 | [diff] [blame] | 299 | .pm = &sp805_wdt_dev_pm_ops, |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 300 | }, |
| 301 | .id_table = sp805_wdt_ids, |
| 302 | .probe = sp805_wdt_probe, |
Bill Pemberton | 8226871 | 2012-11-19 13:21:12 -0500 | [diff] [blame] | 303 | .remove = sp805_wdt_remove, |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 304 | }; |
| 305 | |
viresh kumar | 9e5ed09 | 2012-03-15 10:40:38 +0100 | [diff] [blame] | 306 | module_amba_driver(sp805_wdt_driver); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 307 | |
Viresh Kumar | 10d8935 | 2012-06-20 12:53:02 -0700 | [diff] [blame] | 308 | MODULE_AUTHOR("Viresh Kumar <viresh.linux@gmail.com>"); |
Viresh KUMAR | 4a37027 | 2010-08-04 11:44:14 +0530 | [diff] [blame] | 309 | MODULE_DESCRIPTION("ARM SP805 Watchdog Driver"); |
| 310 | MODULE_LICENSE("GPL"); |