Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 1 | /* |
| 2 | * rtc-palmas.c -- Palmas Real Time Clock driver. |
| 3 | |
| 4 | * RTC driver for TI Palma series devices like TPS65913, |
| 5 | * TPS65914 power management IC. |
| 6 | * |
| 7 | * Copyright (c) 2012, NVIDIA Corporation. |
| 8 | * |
| 9 | * Author: Laxman Dewangan <ldewangan@nvidia.com> |
| 10 | * |
| 11 | * This program is free software; you can redistribute it and/or |
| 12 | * modify it under the terms of the GNU General Public License as |
| 13 | * published by the Free Software Foundation version 2. |
| 14 | * |
| 15 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, |
| 16 | * whether express or implied; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 23 | * 02111-1307, USA |
| 24 | */ |
| 25 | |
| 26 | #include <linux/bcd.h> |
| 27 | #include <linux/errno.h> |
| 28 | #include <linux/init.h> |
| 29 | #include <linux/interrupt.h> |
| 30 | #include <linux/kernel.h> |
| 31 | #include <linux/mfd/palmas.h> |
| 32 | #include <linux/module.h> |
Laxman Dewangan | 0288d2e | 2013-04-29 16:20:06 -0700 | [diff] [blame] | 33 | #include <linux/of.h> |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 34 | #include <linux/rtc.h> |
| 35 | #include <linux/types.h> |
| 36 | #include <linux/platform_device.h> |
| 37 | #include <linux/pm.h> |
| 38 | |
| 39 | struct palmas_rtc { |
| 40 | struct rtc_device *rtc; |
| 41 | struct device *dev; |
| 42 | unsigned int irq; |
| 43 | }; |
| 44 | |
| 45 | /* Total number of RTC registers needed to set time*/ |
| 46 | #define PALMAS_NUM_TIME_REGS (PALMAS_YEARS_REG - PALMAS_SECONDS_REG + 1) |
| 47 | |
Mark Salyzyn | b275ab5 | 2015-12-30 09:26:15 -0800 | [diff] [blame] | 48 | /* |
| 49 | * Special bin2bcd mapping to deal with bcd storage of year. |
| 50 | * |
| 51 | * 0-69 -> 0xD0 |
| 52 | * 70-99 (1970 - 1999) -> 0xD0 - 0xF9 (correctly rolls to 0x00) |
| 53 | * 100-199 (2000 - 2099) -> 0x00 - 0x99 (does not roll to 0xA0 :-( ) |
| 54 | * 200-229 (2100 - 2129) -> 0xA0 - 0xC9 (really for completeness) |
| 55 | * 230- -> 0xC9 |
| 56 | * |
| 57 | * Confirmed: the only transition that does not work correctly for this rtc |
| 58 | * clock is the transition from 2099 to 2100, it proceeds to 2000. We will |
| 59 | * accept this issue since the clock retains and transitions the year correctly |
| 60 | * in all other conditions. |
| 61 | */ |
| 62 | static unsigned char year_bin2bcd(int val) |
| 63 | { |
| 64 | if (val < 70) |
| 65 | return 0xD0; |
| 66 | if (val < 100) |
| 67 | return bin2bcd(val - 20) | 0x80; /* KISS leverage of bin2bcd */ |
| 68 | if (val >= 230) |
| 69 | return 0xC9; |
| 70 | if (val >= 200) |
| 71 | return bin2bcd(val - 180) | 0x80; |
| 72 | return bin2bcd(val - 100); |
| 73 | } |
| 74 | |
| 75 | static int year_bcd2bin(unsigned char val) |
| 76 | { |
| 77 | if (val >= 0xD0) |
| 78 | return bcd2bin(val & 0x7F) + 20; |
| 79 | if (val >= 0xA0) |
| 80 | return bcd2bin(val & 0x7F) + 180; |
| 81 | return bcd2bin(val) + 100; |
| 82 | } |
| 83 | |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 84 | static int palmas_rtc_read_time(struct device *dev, struct rtc_time *tm) |
| 85 | { |
| 86 | unsigned char rtc_data[PALMAS_NUM_TIME_REGS]; |
| 87 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 88 | int ret; |
| 89 | |
| 90 | /* Copy RTC counting registers to static registers or latches */ |
| 91 | ret = palmas_update_bits(palmas, PALMAS_RTC_BASE, PALMAS_RTC_CTRL_REG, |
| 92 | PALMAS_RTC_CTRL_REG_GET_TIME, PALMAS_RTC_CTRL_REG_GET_TIME); |
| 93 | if (ret < 0) { |
| 94 | dev_err(dev, "RTC CTRL reg update failed, err: %d\n", ret); |
| 95 | return ret; |
| 96 | } |
| 97 | |
| 98 | ret = palmas_bulk_read(palmas, PALMAS_RTC_BASE, PALMAS_SECONDS_REG, |
| 99 | rtc_data, PALMAS_NUM_TIME_REGS); |
| 100 | if (ret < 0) { |
| 101 | dev_err(dev, "RTC_SECONDS reg read failed, err = %d\n", ret); |
| 102 | return ret; |
| 103 | } |
| 104 | |
| 105 | tm->tm_sec = bcd2bin(rtc_data[0]); |
| 106 | tm->tm_min = bcd2bin(rtc_data[1]); |
| 107 | tm->tm_hour = bcd2bin(rtc_data[2]); |
| 108 | tm->tm_mday = bcd2bin(rtc_data[3]); |
| 109 | tm->tm_mon = bcd2bin(rtc_data[4]) - 1; |
Mark Salyzyn | b275ab5 | 2015-12-30 09:26:15 -0800 | [diff] [blame] | 110 | tm->tm_year = year_bcd2bin(rtc_data[5]); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 111 | |
| 112 | return ret; |
| 113 | } |
| 114 | |
| 115 | static int palmas_rtc_set_time(struct device *dev, struct rtc_time *tm) |
| 116 | { |
| 117 | unsigned char rtc_data[PALMAS_NUM_TIME_REGS]; |
| 118 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 119 | int ret; |
| 120 | |
| 121 | rtc_data[0] = bin2bcd(tm->tm_sec); |
| 122 | rtc_data[1] = bin2bcd(tm->tm_min); |
| 123 | rtc_data[2] = bin2bcd(tm->tm_hour); |
| 124 | rtc_data[3] = bin2bcd(tm->tm_mday); |
| 125 | rtc_data[4] = bin2bcd(tm->tm_mon + 1); |
Mark Salyzyn | b275ab5 | 2015-12-30 09:26:15 -0800 | [diff] [blame] | 126 | rtc_data[5] = year_bin2bcd(tm->tm_year); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 127 | |
| 128 | /* Stop RTC while updating the RTC time registers */ |
| 129 | ret = palmas_update_bits(palmas, PALMAS_RTC_BASE, PALMAS_RTC_CTRL_REG, |
| 130 | PALMAS_RTC_CTRL_REG_STOP_RTC, 0); |
| 131 | if (ret < 0) { |
| 132 | dev_err(dev, "RTC stop failed, err = %d\n", ret); |
| 133 | return ret; |
| 134 | } |
| 135 | |
| 136 | ret = palmas_bulk_write(palmas, PALMAS_RTC_BASE, PALMAS_SECONDS_REG, |
| 137 | rtc_data, PALMAS_NUM_TIME_REGS); |
| 138 | if (ret < 0) { |
| 139 | dev_err(dev, "RTC_SECONDS reg write failed, err = %d\n", ret); |
| 140 | return ret; |
| 141 | } |
| 142 | |
| 143 | /* Start back RTC */ |
| 144 | ret = palmas_update_bits(palmas, PALMAS_RTC_BASE, PALMAS_RTC_CTRL_REG, |
| 145 | PALMAS_RTC_CTRL_REG_STOP_RTC, PALMAS_RTC_CTRL_REG_STOP_RTC); |
| 146 | if (ret < 0) |
| 147 | dev_err(dev, "RTC start failed, err = %d\n", ret); |
| 148 | return ret; |
| 149 | } |
| 150 | |
| 151 | static int palmas_rtc_alarm_irq_enable(struct device *dev, unsigned enabled) |
| 152 | { |
| 153 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 154 | u8 val; |
| 155 | |
| 156 | val = enabled ? PALMAS_RTC_INTERRUPTS_REG_IT_ALARM : 0; |
| 157 | return palmas_write(palmas, PALMAS_RTC_BASE, |
| 158 | PALMAS_RTC_INTERRUPTS_REG, val); |
| 159 | } |
| 160 | |
| 161 | static int palmas_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm) |
| 162 | { |
| 163 | unsigned char alarm_data[PALMAS_NUM_TIME_REGS]; |
| 164 | u32 int_val; |
| 165 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 166 | int ret; |
| 167 | |
| 168 | ret = palmas_bulk_read(palmas, PALMAS_RTC_BASE, |
| 169 | PALMAS_ALARM_SECONDS_REG, |
| 170 | alarm_data, PALMAS_NUM_TIME_REGS); |
| 171 | if (ret < 0) { |
| 172 | dev_err(dev, "RTC_ALARM_SECONDS read failed, err = %d\n", ret); |
| 173 | return ret; |
| 174 | } |
| 175 | |
| 176 | alm->time.tm_sec = bcd2bin(alarm_data[0]); |
| 177 | alm->time.tm_min = bcd2bin(alarm_data[1]); |
| 178 | alm->time.tm_hour = bcd2bin(alarm_data[2]); |
| 179 | alm->time.tm_mday = bcd2bin(alarm_data[3]); |
| 180 | alm->time.tm_mon = bcd2bin(alarm_data[4]) - 1; |
Mark Salyzyn | b275ab5 | 2015-12-30 09:26:15 -0800 | [diff] [blame] | 181 | alm->time.tm_year = year_bcd2bin(alarm_data[5]); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 182 | |
| 183 | ret = palmas_read(palmas, PALMAS_RTC_BASE, PALMAS_RTC_INTERRUPTS_REG, |
| 184 | &int_val); |
| 185 | if (ret < 0) { |
| 186 | dev_err(dev, "RTC_INTERRUPTS reg read failed, err = %d\n", ret); |
| 187 | return ret; |
| 188 | } |
| 189 | |
| 190 | if (int_val & PALMAS_RTC_INTERRUPTS_REG_IT_ALARM) |
| 191 | alm->enabled = 1; |
| 192 | return ret; |
| 193 | } |
| 194 | |
| 195 | static int palmas_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) |
| 196 | { |
| 197 | unsigned char alarm_data[PALMAS_NUM_TIME_REGS]; |
| 198 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 199 | int ret; |
| 200 | |
| 201 | ret = palmas_rtc_alarm_irq_enable(dev, 0); |
| 202 | if (ret < 0) { |
| 203 | dev_err(dev, "Disable RTC alarm failed\n"); |
| 204 | return ret; |
| 205 | } |
| 206 | |
| 207 | alarm_data[0] = bin2bcd(alm->time.tm_sec); |
| 208 | alarm_data[1] = bin2bcd(alm->time.tm_min); |
| 209 | alarm_data[2] = bin2bcd(alm->time.tm_hour); |
| 210 | alarm_data[3] = bin2bcd(alm->time.tm_mday); |
| 211 | alarm_data[4] = bin2bcd(alm->time.tm_mon + 1); |
Mark Salyzyn | b275ab5 | 2015-12-30 09:26:15 -0800 | [diff] [blame] | 212 | alarm_data[5] = year_bin2bcd(alm->time.tm_year); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 213 | |
| 214 | ret = palmas_bulk_write(palmas, PALMAS_RTC_BASE, |
| 215 | PALMAS_ALARM_SECONDS_REG, alarm_data, PALMAS_NUM_TIME_REGS); |
| 216 | if (ret < 0) { |
| 217 | dev_err(dev, "ALARM_SECONDS_REG write failed, err = %d\n", ret); |
| 218 | return ret; |
| 219 | } |
| 220 | |
| 221 | if (alm->enabled) |
| 222 | ret = palmas_rtc_alarm_irq_enable(dev, 1); |
| 223 | return ret; |
| 224 | } |
| 225 | |
| 226 | static int palmas_clear_interrupts(struct device *dev) |
| 227 | { |
| 228 | struct palmas *palmas = dev_get_drvdata(dev->parent); |
| 229 | unsigned int rtc_reg; |
| 230 | int ret; |
| 231 | |
| 232 | ret = palmas_read(palmas, PALMAS_RTC_BASE, PALMAS_RTC_STATUS_REG, |
| 233 | &rtc_reg); |
| 234 | if (ret < 0) { |
| 235 | dev_err(dev, "RTC_STATUS read failed, err = %d\n", ret); |
| 236 | return ret; |
| 237 | } |
| 238 | |
| 239 | ret = palmas_write(palmas, PALMAS_RTC_BASE, PALMAS_RTC_STATUS_REG, |
| 240 | rtc_reg); |
| 241 | if (ret < 0) { |
| 242 | dev_err(dev, "RTC_STATUS write failed, err = %d\n", ret); |
| 243 | return ret; |
| 244 | } |
| 245 | return 0; |
| 246 | } |
| 247 | |
| 248 | static irqreturn_t palmas_rtc_interrupt(int irq, void *context) |
| 249 | { |
| 250 | struct palmas_rtc *palmas_rtc = context; |
| 251 | struct device *dev = palmas_rtc->dev; |
| 252 | int ret; |
| 253 | |
| 254 | ret = palmas_clear_interrupts(dev); |
| 255 | if (ret < 0) { |
| 256 | dev_err(dev, "RTC interrupt clear failed, err = %d\n", ret); |
| 257 | return IRQ_NONE; |
| 258 | } |
| 259 | |
| 260 | rtc_update_irq(palmas_rtc->rtc, 1, RTC_IRQF | RTC_AF); |
| 261 | return IRQ_HANDLED; |
| 262 | } |
| 263 | |
Julia Lawall | 34c7b3a | 2016-08-31 10:05:25 +0200 | [diff] [blame] | 264 | static const struct rtc_class_ops palmas_rtc_ops = { |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 265 | .read_time = palmas_rtc_read_time, |
| 266 | .set_time = palmas_rtc_set_time, |
| 267 | .read_alarm = palmas_rtc_read_alarm, |
| 268 | .set_alarm = palmas_rtc_set_alarm, |
| 269 | .alarm_irq_enable = palmas_rtc_alarm_irq_enable, |
| 270 | }; |
| 271 | |
| 272 | static int palmas_rtc_probe(struct platform_device *pdev) |
| 273 | { |
| 274 | struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); |
| 275 | struct palmas_rtc *palmas_rtc = NULL; |
| 276 | int ret; |
Laxman Dewangan | 666a584 | 2013-09-11 14:24:19 -0700 | [diff] [blame] | 277 | bool enable_bb_charging = false; |
Laxman Dewangan | d200c79 | 2015-05-29 17:44:05 +0530 | [diff] [blame] | 278 | bool high_bb_charging = false; |
Laxman Dewangan | 666a584 | 2013-09-11 14:24:19 -0700 | [diff] [blame] | 279 | |
| 280 | if (pdev->dev.of_node) { |
| 281 | enable_bb_charging = of_property_read_bool(pdev->dev.of_node, |
| 282 | "ti,backup-battery-chargeable"); |
| 283 | high_bb_charging = of_property_read_bool(pdev->dev.of_node, |
| 284 | "ti,backup-battery-charge-high-current"); |
| 285 | } |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 286 | |
| 287 | palmas_rtc = devm_kzalloc(&pdev->dev, sizeof(struct palmas_rtc), |
| 288 | GFP_KERNEL); |
| 289 | if (!palmas_rtc) |
| 290 | return -ENOMEM; |
| 291 | |
| 292 | /* Clear pending interrupts */ |
| 293 | ret = palmas_clear_interrupts(&pdev->dev); |
| 294 | if (ret < 0) { |
| 295 | dev_err(&pdev->dev, "clear RTC int failed, err = %d\n", ret); |
| 296 | return ret; |
| 297 | } |
| 298 | |
| 299 | palmas_rtc->dev = &pdev->dev; |
| 300 | platform_set_drvdata(pdev, palmas_rtc); |
| 301 | |
Laxman Dewangan | 666a584 | 2013-09-11 14:24:19 -0700 | [diff] [blame] | 302 | if (enable_bb_charging) { |
| 303 | unsigned reg = PALMAS_BACKUP_BATTERY_CTRL_BBS_BBC_LOW_ICHRG; |
| 304 | |
| 305 | if (high_bb_charging) |
| 306 | reg = 0; |
| 307 | |
| 308 | ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE, |
| 309 | PALMAS_BACKUP_BATTERY_CTRL, |
| 310 | PALMAS_BACKUP_BATTERY_CTRL_BBS_BBC_LOW_ICHRG, reg); |
| 311 | if (ret < 0) { |
| 312 | dev_err(&pdev->dev, |
| 313 | "BACKUP_BATTERY_CTRL update failed, %d\n", ret); |
| 314 | return ret; |
| 315 | } |
| 316 | |
| 317 | ret = palmas_update_bits(palmas, PALMAS_PMU_CONTROL_BASE, |
| 318 | PALMAS_BACKUP_BATTERY_CTRL, |
| 319 | PALMAS_BACKUP_BATTERY_CTRL_BB_CHG_EN, |
| 320 | PALMAS_BACKUP_BATTERY_CTRL_BB_CHG_EN); |
| 321 | if (ret < 0) { |
| 322 | dev_err(&pdev->dev, |
| 323 | "BACKUP_BATTERY_CTRL update failed, %d\n", ret); |
| 324 | return ret; |
| 325 | } |
| 326 | } |
| 327 | |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 328 | /* Start RTC */ |
| 329 | ret = palmas_update_bits(palmas, PALMAS_RTC_BASE, PALMAS_RTC_CTRL_REG, |
| 330 | PALMAS_RTC_CTRL_REG_STOP_RTC, |
| 331 | PALMAS_RTC_CTRL_REG_STOP_RTC); |
| 332 | if (ret < 0) { |
| 333 | dev_err(&pdev->dev, "RTC_CTRL write failed, err = %d\n", ret); |
| 334 | return ret; |
| 335 | } |
| 336 | |
| 337 | palmas_rtc->irq = platform_get_irq(pdev, 0); |
| 338 | |
Wei Ni | 2c5a5b3 | 2013-07-03 15:08:00 -0700 | [diff] [blame] | 339 | device_init_wakeup(&pdev->dev, 1); |
Jingoo Han | 2797133 | 2013-04-29 16:19:10 -0700 | [diff] [blame] | 340 | palmas_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name, |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 341 | &palmas_rtc_ops, THIS_MODULE); |
| 342 | if (IS_ERR(palmas_rtc->rtc)) { |
| 343 | ret = PTR_ERR(palmas_rtc->rtc); |
| 344 | dev_err(&pdev->dev, "RTC register failed, err = %d\n", ret); |
| 345 | return ret; |
| 346 | } |
| 347 | |
Jingoo Han | 2797133 | 2013-04-29 16:19:10 -0700 | [diff] [blame] | 348 | ret = devm_request_threaded_irq(&pdev->dev, palmas_rtc->irq, NULL, |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 349 | palmas_rtc_interrupt, |
Grygorii Strashko | b3be3f6 | 2016-02-26 17:42:52 +0200 | [diff] [blame] | 350 | IRQF_TRIGGER_LOW | IRQF_ONESHOT, |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 351 | dev_name(&pdev->dev), palmas_rtc); |
| 352 | if (ret < 0) { |
| 353 | dev_err(&pdev->dev, "IRQ request failed, err = %d\n", ret); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 354 | return ret; |
| 355 | } |
| 356 | |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static int palmas_rtc_remove(struct platform_device *pdev) |
| 361 | { |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 362 | palmas_rtc_alarm_irq_enable(&pdev->dev, 0); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 363 | return 0; |
| 364 | } |
| 365 | |
| 366 | #ifdef CONFIG_PM_SLEEP |
| 367 | static int palmas_rtc_suspend(struct device *dev) |
| 368 | { |
| 369 | struct palmas_rtc *palmas_rtc = dev_get_drvdata(dev); |
| 370 | |
| 371 | if (device_may_wakeup(dev)) |
| 372 | enable_irq_wake(palmas_rtc->irq); |
| 373 | return 0; |
| 374 | } |
| 375 | |
| 376 | static int palmas_rtc_resume(struct device *dev) |
| 377 | { |
| 378 | struct palmas_rtc *palmas_rtc = dev_get_drvdata(dev); |
| 379 | |
| 380 | if (device_may_wakeup(dev)) |
| 381 | disable_irq_wake(palmas_rtc->irq); |
| 382 | return 0; |
| 383 | } |
| 384 | #endif |
| 385 | |
Jingoo Han | 3f93822 | 2014-04-03 14:50:07 -0700 | [diff] [blame] | 386 | static SIMPLE_DEV_PM_OPS(palmas_rtc_pm_ops, palmas_rtc_suspend, |
| 387 | palmas_rtc_resume); |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 388 | |
Laxman Dewangan | 0288d2e | 2013-04-29 16:20:06 -0700 | [diff] [blame] | 389 | #ifdef CONFIG_OF |
Jingoo Han | 7abe3f5 | 2014-06-06 14:35:58 -0700 | [diff] [blame] | 390 | static const struct of_device_id of_palmas_rtc_match[] = { |
Laxman Dewangan | 0288d2e | 2013-04-29 16:20:06 -0700 | [diff] [blame] | 391 | { .compatible = "ti,palmas-rtc"}, |
| 392 | { }, |
| 393 | }; |
| 394 | MODULE_DEVICE_TABLE(of, of_palmas_rtc_match); |
| 395 | #endif |
| 396 | |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 397 | static struct platform_driver palmas_rtc_driver = { |
| 398 | .probe = palmas_rtc_probe, |
| 399 | .remove = palmas_rtc_remove, |
| 400 | .driver = { |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 401 | .name = "palmas-rtc", |
| 402 | .pm = &palmas_rtc_pm_ops, |
Laxman Dewangan | 0288d2e | 2013-04-29 16:20:06 -0700 | [diff] [blame] | 403 | .of_match_table = of_match_ptr(of_palmas_rtc_match), |
Laxman Dewangan | 0101e53 | 2013-01-03 16:17:00 +0530 | [diff] [blame] | 404 | }, |
| 405 | }; |
| 406 | |
| 407 | module_platform_driver(palmas_rtc_driver); |
| 408 | |
| 409 | MODULE_ALIAS("platform:palmas_rtc"); |
| 410 | MODULE_DESCRIPTION("TI PALMAS series RTC driver"); |
| 411 | MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>"); |
| 412 | MODULE_LICENSE("GPL v2"); |