Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 1 | /* |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 2 | * Copyright (c) 2013-2014 Samsung Electronics Co., Ltd |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 3 | * http://www.samsung.com |
| 4 | * |
| 5 | * Copyright (C) 2013 Google, Inc |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | */ |
| 17 | |
| 18 | #include <linux/module.h> |
| 19 | #include <linux/i2c.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/bcd.h> |
| 22 | #include <linux/bitops.h> |
| 23 | #include <linux/regmap.h> |
| 24 | #include <linux/rtc.h> |
| 25 | #include <linux/delay.h> |
| 26 | #include <linux/platform_device.h> |
| 27 | #include <linux/mfd/samsung/core.h> |
| 28 | #include <linux/mfd/samsung/irq.h> |
| 29 | #include <linux/mfd/samsung/rtc.h> |
| 30 | |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 31 | /* |
| 32 | * Maximum number of retries for checking changes in UDR field |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 33 | * of S5M_RTC_UDR_CON register (to limit possible endless loop). |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 34 | * |
| 35 | * After writing to RTC registers (setting time or alarm) read the UDR field |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 36 | * in S5M_RTC_UDR_CON register. UDR is auto-cleared when data have |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 37 | * been transferred. |
| 38 | */ |
| 39 | #define UDR_READ_RETRY_CNT 5 |
| 40 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 41 | /* Registers used by the driver which are different between chipsets. */ |
| 42 | struct s5m_rtc_reg_config { |
| 43 | /* Number of registers used for setting time/alarm0/alarm1 */ |
| 44 | unsigned int regs_count; |
| 45 | /* First register for time, seconds */ |
| 46 | unsigned int time; |
| 47 | /* RTC control register */ |
| 48 | unsigned int ctrl; |
| 49 | /* First register for alarm 0, seconds */ |
| 50 | unsigned int alarm0; |
| 51 | /* First register for alarm 1, seconds */ |
| 52 | unsigned int alarm1; |
| 53 | /* SMPL/WTSR register */ |
| 54 | unsigned int smpl_wtsr; |
| 55 | /* |
| 56 | * Register for update flag (UDR). Typically setting UDR field to 1 |
| 57 | * will enable update of time or alarm register. Then it will be |
| 58 | * auto-cleared after successful update. |
| 59 | */ |
| 60 | unsigned int rtc_udr_update; |
| 61 | /* Mask for UDR field in 'rtc_udr_update' register */ |
| 62 | unsigned int rtc_udr_mask; |
| 63 | }; |
| 64 | |
| 65 | /* Register map for S5M8763 and S5M8767 */ |
| 66 | static const struct s5m_rtc_reg_config s5m_rtc_regs = { |
| 67 | .regs_count = 8, |
| 68 | .time = S5M_RTC_SEC, |
| 69 | .ctrl = S5M_ALARM1_CONF, |
| 70 | .alarm0 = S5M_ALARM0_SEC, |
| 71 | .alarm1 = S5M_ALARM1_SEC, |
| 72 | .smpl_wtsr = S5M_WTSR_SMPL_CNTL, |
| 73 | .rtc_udr_update = S5M_RTC_UDR_CON, |
| 74 | .rtc_udr_mask = S5M_RTC_UDR_MASK, |
| 75 | }; |
| 76 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 77 | struct s5m_rtc_info { |
| 78 | struct device *dev; |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 79 | struct i2c_client *i2c; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 80 | struct sec_pmic_dev *s5m87xx; |
Geert Uytterhoeven | 5ccb7d7 | 2013-12-12 17:12:25 -0800 | [diff] [blame] | 81 | struct regmap *regmap; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 82 | struct rtc_device *rtc_dev; |
| 83 | int irq; |
| 84 | int device_type; |
| 85 | int rtc_24hr_mode; |
| 86 | bool wtsr_smpl; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 87 | const struct s5m_rtc_reg_config *regs; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 88 | }; |
| 89 | |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 90 | static const struct regmap_config s5m_rtc_regmap_config = { |
| 91 | .reg_bits = 8, |
| 92 | .val_bits = 8, |
| 93 | |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 94 | .max_register = S5M_RTC_REG_MAX, |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 95 | }; |
| 96 | |
| 97 | static const struct regmap_config s2mps14_rtc_regmap_config = { |
| 98 | .reg_bits = 8, |
| 99 | .val_bits = 8, |
| 100 | |
| 101 | .max_register = S2MPS_RTC_REG_MAX, |
| 102 | }; |
| 103 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 104 | static void s5m8767_data_to_tm(u8 *data, struct rtc_time *tm, |
| 105 | int rtc_24hr_mode) |
| 106 | { |
| 107 | tm->tm_sec = data[RTC_SEC] & 0x7f; |
| 108 | tm->tm_min = data[RTC_MIN] & 0x7f; |
| 109 | if (rtc_24hr_mode) { |
| 110 | tm->tm_hour = data[RTC_HOUR] & 0x1f; |
| 111 | } else { |
| 112 | tm->tm_hour = data[RTC_HOUR] & 0x0f; |
| 113 | if (data[RTC_HOUR] & HOUR_PM_MASK) |
| 114 | tm->tm_hour += 12; |
| 115 | } |
| 116 | |
| 117 | tm->tm_wday = ffs(data[RTC_WEEKDAY] & 0x7f); |
| 118 | tm->tm_mday = data[RTC_DATE] & 0x1f; |
| 119 | tm->tm_mon = (data[RTC_MONTH] & 0x0f) - 1; |
| 120 | tm->tm_year = (data[RTC_YEAR1] & 0x7f) + 100; |
| 121 | tm->tm_yday = 0; |
| 122 | tm->tm_isdst = 0; |
| 123 | } |
| 124 | |
| 125 | static int s5m8767_tm_to_data(struct rtc_time *tm, u8 *data) |
| 126 | { |
| 127 | data[RTC_SEC] = tm->tm_sec; |
| 128 | data[RTC_MIN] = tm->tm_min; |
| 129 | |
| 130 | if (tm->tm_hour >= 12) |
| 131 | data[RTC_HOUR] = tm->tm_hour | HOUR_PM_MASK; |
| 132 | else |
| 133 | data[RTC_HOUR] = tm->tm_hour & ~HOUR_PM_MASK; |
| 134 | |
| 135 | data[RTC_WEEKDAY] = 1 << tm->tm_wday; |
| 136 | data[RTC_DATE] = tm->tm_mday; |
| 137 | data[RTC_MONTH] = tm->tm_mon + 1; |
| 138 | data[RTC_YEAR1] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0; |
| 139 | |
| 140 | if (tm->tm_year < 100) { |
| 141 | pr_err("s5m8767 RTC cannot handle the year %d.\n", |
| 142 | 1900 + tm->tm_year); |
| 143 | return -EINVAL; |
| 144 | } else { |
| 145 | return 0; |
| 146 | } |
| 147 | } |
| 148 | |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 149 | /* |
| 150 | * Read RTC_UDR_CON register and wait till UDR field is cleared. |
| 151 | * This indicates that time/alarm update ended. |
| 152 | */ |
| 153 | static inline int s5m8767_wait_for_udr_update(struct s5m_rtc_info *info) |
| 154 | { |
| 155 | int ret, retry = UDR_READ_RETRY_CNT; |
| 156 | unsigned int data; |
| 157 | |
| 158 | do { |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 159 | ret = regmap_read(info->regmap, info->regs->rtc_udr_update, |
| 160 | &data); |
| 161 | } while (--retry && (data & info->regs->rtc_udr_mask) && !ret); |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 162 | |
| 163 | if (!retry) |
| 164 | dev_err(info->dev, "waiting for UDR update, reached max number of retries\n"); |
| 165 | |
| 166 | return ret; |
| 167 | } |
| 168 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 169 | static inline int s5m_check_peding_alarm_interrupt(struct s5m_rtc_info *info, |
| 170 | struct rtc_wkalrm *alarm) |
| 171 | { |
| 172 | int ret; |
| 173 | unsigned int val; |
| 174 | |
| 175 | switch (info->device_type) { |
| 176 | case S5M8767X: |
| 177 | case S5M8763X: |
| 178 | ret = regmap_read(info->regmap, S5M_RTC_STATUS, &val); |
| 179 | val &= S5M_ALARM0_STATUS; |
| 180 | break; |
| 181 | default: |
| 182 | return -EINVAL; |
| 183 | } |
| 184 | if (ret < 0) |
| 185 | return ret; |
| 186 | |
| 187 | if (val) |
| 188 | alarm->pending = 1; |
| 189 | else |
| 190 | alarm->pending = 0; |
| 191 | |
| 192 | return 0; |
| 193 | } |
| 194 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 195 | static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info) |
| 196 | { |
| 197 | int ret; |
| 198 | unsigned int data; |
| 199 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 200 | ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 201 | if (ret < 0) { |
| 202 | dev_err(info->dev, "failed to read update reg(%d)\n", ret); |
| 203 | return ret; |
| 204 | } |
| 205 | |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 206 | data |= S5M_RTC_TIME_EN_MASK; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 207 | data |= info->regs->rtc_udr_mask; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 208 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 209 | ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 210 | if (ret < 0) { |
| 211 | dev_err(info->dev, "failed to write update reg(%d)\n", ret); |
| 212 | return ret; |
| 213 | } |
| 214 | |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 215 | ret = s5m8767_wait_for_udr_update(info); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 216 | |
| 217 | return ret; |
| 218 | } |
| 219 | |
| 220 | static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info) |
| 221 | { |
| 222 | int ret; |
| 223 | unsigned int data; |
| 224 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 225 | ret = regmap_read(info->regmap, info->regs->rtc_udr_update, &data); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 226 | if (ret < 0) { |
| 227 | dev_err(info->dev, "%s: fail to read update reg(%d)\n", |
| 228 | __func__, ret); |
| 229 | return ret; |
| 230 | } |
| 231 | |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 232 | data &= ~S5M_RTC_TIME_EN_MASK; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 233 | data |= info->regs->rtc_udr_mask; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 234 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 235 | ret = regmap_write(info->regmap, info->regs->rtc_udr_update, data); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 236 | if (ret < 0) { |
| 237 | dev_err(info->dev, "%s: fail to write update reg(%d)\n", |
| 238 | __func__, ret); |
| 239 | return ret; |
| 240 | } |
| 241 | |
Krzysztof Kozlowski | d73238d | 2013-12-12 17:12:28 -0800 | [diff] [blame] | 242 | ret = s5m8767_wait_for_udr_update(info); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 243 | |
| 244 | return ret; |
| 245 | } |
| 246 | |
| 247 | static void s5m8763_data_to_tm(u8 *data, struct rtc_time *tm) |
| 248 | { |
| 249 | tm->tm_sec = bcd2bin(data[RTC_SEC]); |
| 250 | tm->tm_min = bcd2bin(data[RTC_MIN]); |
| 251 | |
| 252 | if (data[RTC_HOUR] & HOUR_12) { |
| 253 | tm->tm_hour = bcd2bin(data[RTC_HOUR] & 0x1f); |
| 254 | if (data[RTC_HOUR] & HOUR_PM) |
| 255 | tm->tm_hour += 12; |
| 256 | } else { |
| 257 | tm->tm_hour = bcd2bin(data[RTC_HOUR] & 0x3f); |
| 258 | } |
| 259 | |
| 260 | tm->tm_wday = data[RTC_WEEKDAY] & 0x07; |
| 261 | tm->tm_mday = bcd2bin(data[RTC_DATE]); |
| 262 | tm->tm_mon = bcd2bin(data[RTC_MONTH]); |
| 263 | tm->tm_year = bcd2bin(data[RTC_YEAR1]) + bcd2bin(data[RTC_YEAR2]) * 100; |
| 264 | tm->tm_year -= 1900; |
| 265 | } |
| 266 | |
| 267 | static void s5m8763_tm_to_data(struct rtc_time *tm, u8 *data) |
| 268 | { |
| 269 | data[RTC_SEC] = bin2bcd(tm->tm_sec); |
| 270 | data[RTC_MIN] = bin2bcd(tm->tm_min); |
| 271 | data[RTC_HOUR] = bin2bcd(tm->tm_hour); |
| 272 | data[RTC_WEEKDAY] = tm->tm_wday; |
| 273 | data[RTC_DATE] = bin2bcd(tm->tm_mday); |
| 274 | data[RTC_MONTH] = bin2bcd(tm->tm_mon); |
| 275 | data[RTC_YEAR1] = bin2bcd(tm->tm_year % 100); |
| 276 | data[RTC_YEAR2] = bin2bcd((tm->tm_year + 1900) / 100); |
| 277 | } |
| 278 | |
| 279 | static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm) |
| 280 | { |
| 281 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 282 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 283 | int ret; |
| 284 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 285 | ret = regmap_bulk_read(info->regmap, info->regs->time, data, |
| 286 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 287 | if (ret < 0) |
| 288 | return ret; |
| 289 | |
| 290 | switch (info->device_type) { |
| 291 | case S5M8763X: |
| 292 | s5m8763_data_to_tm(data, tm); |
| 293 | break; |
| 294 | |
| 295 | case S5M8767X: |
| 296 | s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode); |
| 297 | break; |
| 298 | |
| 299 | default: |
| 300 | return -EINVAL; |
| 301 | } |
| 302 | |
| 303 | dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 304 | 1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday, |
| 305 | tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday); |
| 306 | |
| 307 | return rtc_valid_tm(tm); |
| 308 | } |
| 309 | |
| 310 | static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm) |
| 311 | { |
| 312 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 313 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 314 | int ret = 0; |
| 315 | |
| 316 | switch (info->device_type) { |
| 317 | case S5M8763X: |
| 318 | s5m8763_tm_to_data(tm, data); |
| 319 | break; |
| 320 | case S5M8767X: |
| 321 | ret = s5m8767_tm_to_data(tm, data); |
| 322 | break; |
| 323 | default: |
| 324 | return -EINVAL; |
| 325 | } |
| 326 | |
| 327 | if (ret < 0) |
| 328 | return ret; |
| 329 | |
| 330 | dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 331 | 1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday, |
| 332 | tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday); |
| 333 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 334 | ret = regmap_raw_write(info->regmap, info->regs->time, data, |
| 335 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 336 | if (ret < 0) |
| 337 | return ret; |
| 338 | |
| 339 | ret = s5m8767_rtc_set_time_reg(info); |
| 340 | |
| 341 | return ret; |
| 342 | } |
| 343 | |
| 344 | static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) |
| 345 | { |
| 346 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 347 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 348 | unsigned int val; |
| 349 | int ret, i; |
| 350 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 351 | ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, |
| 352 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 353 | if (ret < 0) |
| 354 | return ret; |
| 355 | |
| 356 | switch (info->device_type) { |
| 357 | case S5M8763X: |
| 358 | s5m8763_data_to_tm(data, &alrm->time); |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 359 | ret = regmap_read(info->regmap, S5M_ALARM0_CONF, &val); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 360 | if (ret < 0) |
| 361 | return ret; |
| 362 | |
| 363 | alrm->enabled = !!val; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 364 | break; |
| 365 | |
| 366 | case S5M8767X: |
| 367 | s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 368 | alrm->enabled = 0; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 369 | for (i = 0; i < info->regs->regs_count; i++) { |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 370 | if (data[i] & ALARM_ENABLE_MASK) { |
| 371 | alrm->enabled = 1; |
| 372 | break; |
| 373 | } |
| 374 | } |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 375 | break; |
| 376 | |
| 377 | default: |
| 378 | return -EINVAL; |
| 379 | } |
| 380 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 381 | dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 382 | 1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon, |
| 383 | alrm->time.tm_mday, alrm->time.tm_hour, |
| 384 | alrm->time.tm_min, alrm->time.tm_sec, |
| 385 | alrm->time.tm_wday); |
| 386 | |
| 387 | ret = s5m_check_peding_alarm_interrupt(info, alrm); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 388 | |
| 389 | return 0; |
| 390 | } |
| 391 | |
| 392 | static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info) |
| 393 | { |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 394 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 395 | int ret, i; |
| 396 | struct rtc_time tm; |
| 397 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 398 | ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, |
| 399 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 400 | if (ret < 0) |
| 401 | return ret; |
| 402 | |
| 403 | s5m8767_data_to_tm(data, &tm, info->rtc_24hr_mode); |
| 404 | dev_dbg(info->dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 405 | 1900 + tm.tm_year, 1 + tm.tm_mon, tm.tm_mday, |
| 406 | tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday); |
| 407 | |
| 408 | switch (info->device_type) { |
| 409 | case S5M8763X: |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 410 | ret = regmap_write(info->regmap, S5M_ALARM0_CONF, 0); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 411 | break; |
| 412 | |
| 413 | case S5M8767X: |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 414 | for (i = 0; i < info->regs->regs_count; i++) |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 415 | data[i] &= ~ALARM_ENABLE_MASK; |
| 416 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 417 | ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, |
| 418 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 419 | if (ret < 0) |
| 420 | return ret; |
| 421 | |
| 422 | ret = s5m8767_rtc_set_alarm_reg(info); |
| 423 | |
| 424 | break; |
| 425 | |
| 426 | default: |
| 427 | return -EINVAL; |
| 428 | } |
| 429 | |
| 430 | return ret; |
| 431 | } |
| 432 | |
| 433 | static int s5m_rtc_start_alarm(struct s5m_rtc_info *info) |
| 434 | { |
| 435 | int ret; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 436 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 437 | u8 alarm0_conf; |
| 438 | struct rtc_time tm; |
| 439 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 440 | ret = regmap_bulk_read(info->regmap, info->regs->alarm0, data, |
| 441 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 442 | if (ret < 0) |
| 443 | return ret; |
| 444 | |
| 445 | s5m8767_data_to_tm(data, &tm, info->rtc_24hr_mode); |
| 446 | dev_dbg(info->dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 447 | 1900 + tm.tm_year, 1 + tm.tm_mon, tm.tm_mday, |
| 448 | tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday); |
| 449 | |
| 450 | switch (info->device_type) { |
| 451 | case S5M8763X: |
| 452 | alarm0_conf = 0x77; |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 453 | ret = regmap_write(info->regmap, S5M_ALARM0_CONF, alarm0_conf); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 454 | break; |
| 455 | |
| 456 | case S5M8767X: |
| 457 | data[RTC_SEC] |= ALARM_ENABLE_MASK; |
| 458 | data[RTC_MIN] |= ALARM_ENABLE_MASK; |
| 459 | data[RTC_HOUR] |= ALARM_ENABLE_MASK; |
| 460 | data[RTC_WEEKDAY] &= ~ALARM_ENABLE_MASK; |
| 461 | if (data[RTC_DATE] & 0x1f) |
| 462 | data[RTC_DATE] |= ALARM_ENABLE_MASK; |
| 463 | if (data[RTC_MONTH] & 0xf) |
| 464 | data[RTC_MONTH] |= ALARM_ENABLE_MASK; |
| 465 | if (data[RTC_YEAR1] & 0x7f) |
| 466 | data[RTC_YEAR1] |= ALARM_ENABLE_MASK; |
| 467 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 468 | ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, |
| 469 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 470 | if (ret < 0) |
| 471 | return ret; |
| 472 | ret = s5m8767_rtc_set_alarm_reg(info); |
| 473 | |
| 474 | break; |
| 475 | |
| 476 | default: |
| 477 | return -EINVAL; |
| 478 | } |
| 479 | |
| 480 | return ret; |
| 481 | } |
| 482 | |
| 483 | static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) |
| 484 | { |
| 485 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 486 | u8 data[info->regs->regs_count]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 487 | int ret; |
| 488 | |
| 489 | switch (info->device_type) { |
| 490 | case S5M8763X: |
| 491 | s5m8763_tm_to_data(&alrm->time, data); |
| 492 | break; |
| 493 | |
| 494 | case S5M8767X: |
| 495 | s5m8767_tm_to_data(&alrm->time, data); |
| 496 | break; |
| 497 | |
| 498 | default: |
| 499 | return -EINVAL; |
| 500 | } |
| 501 | |
| 502 | dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__, |
| 503 | 1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon, |
| 504 | alrm->time.tm_mday, alrm->time.tm_hour, alrm->time.tm_min, |
| 505 | alrm->time.tm_sec, alrm->time.tm_wday); |
| 506 | |
| 507 | ret = s5m_rtc_stop_alarm(info); |
| 508 | if (ret < 0) |
| 509 | return ret; |
| 510 | |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 511 | ret = regmap_raw_write(info->regmap, info->regs->alarm0, data, |
| 512 | info->regs->regs_count); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 513 | if (ret < 0) |
| 514 | return ret; |
| 515 | |
| 516 | ret = s5m8767_rtc_set_alarm_reg(info); |
| 517 | if (ret < 0) |
| 518 | return ret; |
| 519 | |
| 520 | if (alrm->enabled) |
| 521 | ret = s5m_rtc_start_alarm(info); |
| 522 | |
| 523 | return ret; |
| 524 | } |
| 525 | |
| 526 | static int s5m_rtc_alarm_irq_enable(struct device *dev, |
| 527 | unsigned int enabled) |
| 528 | { |
| 529 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
| 530 | |
| 531 | if (enabled) |
| 532 | return s5m_rtc_start_alarm(info); |
| 533 | else |
| 534 | return s5m_rtc_stop_alarm(info); |
| 535 | } |
| 536 | |
| 537 | static irqreturn_t s5m_rtc_alarm_irq(int irq, void *data) |
| 538 | { |
| 539 | struct s5m_rtc_info *info = data; |
| 540 | |
| 541 | rtc_update_irq(info->rtc_dev, 1, RTC_IRQF | RTC_AF); |
| 542 | |
| 543 | return IRQ_HANDLED; |
| 544 | } |
| 545 | |
| 546 | static const struct rtc_class_ops s5m_rtc_ops = { |
| 547 | .read_time = s5m_rtc_read_time, |
| 548 | .set_time = s5m_rtc_set_time, |
| 549 | .read_alarm = s5m_rtc_read_alarm, |
| 550 | .set_alarm = s5m_rtc_set_alarm, |
| 551 | .alarm_irq_enable = s5m_rtc_alarm_irq_enable, |
| 552 | }; |
| 553 | |
| 554 | static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable) |
| 555 | { |
| 556 | int ret; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 557 | ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr, |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 558 | WTSR_ENABLE_MASK, |
| 559 | enable ? WTSR_ENABLE_MASK : 0); |
| 560 | if (ret < 0) |
| 561 | dev_err(info->dev, "%s: fail to update WTSR reg(%d)\n", |
| 562 | __func__, ret); |
| 563 | } |
| 564 | |
| 565 | static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable) |
| 566 | { |
| 567 | int ret; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 568 | ret = regmap_update_bits(info->regmap, info->regs->smpl_wtsr, |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 569 | SMPL_ENABLE_MASK, |
| 570 | enable ? SMPL_ENABLE_MASK : 0); |
| 571 | if (ret < 0) |
| 572 | dev_err(info->dev, "%s: fail to update SMPL reg(%d)\n", |
| 573 | __func__, ret); |
| 574 | } |
| 575 | |
| 576 | static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info) |
| 577 | { |
| 578 | u8 data[2]; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 579 | int ret; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 580 | |
Krzysztof Kozlowski | 0c5f5d9 | 2014-06-10 15:18:43 -0700 | [diff] [blame] | 581 | /* UDR update time. Default of 7.32 ms is too long. */ |
| 582 | ret = regmap_update_bits(info->regmap, S5M_RTC_UDR_CON, |
| 583 | S5M_RTC_UDR_T_MASK, S5M_RTC_UDR_T_450_US); |
| 584 | if (ret < 0) |
| 585 | dev_err(info->dev, "%s: fail to change UDR time: %d\n", |
| 586 | __func__, ret); |
| 587 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 588 | /* Set RTC control register : Binary mode, 24hour mode */ |
| 589 | data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); |
| 590 | data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); |
| 591 | |
| 592 | info->rtc_24hr_mode = 1; |
Krzysztof Kozlowski | 602cb5b | 2014-06-10 15:18:40 -0700 | [diff] [blame] | 593 | ret = regmap_raw_write(info->regmap, S5M_ALARM0_CONF, data, 2); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 594 | if (ret < 0) { |
| 595 | dev_err(info->dev, "%s: fail to write controlm reg(%d)\n", |
| 596 | __func__, ret); |
| 597 | return ret; |
| 598 | } |
| 599 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 600 | return ret; |
| 601 | } |
| 602 | |
| 603 | static int s5m_rtc_probe(struct platform_device *pdev) |
| 604 | { |
| 605 | struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent); |
| 606 | struct sec_platform_data *pdata = s5m87xx->pdata; |
| 607 | struct s5m_rtc_info *info; |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 608 | const struct regmap_config *regmap_cfg; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 609 | int ret; |
| 610 | |
| 611 | if (!pdata) { |
| 612 | dev_err(pdev->dev.parent, "Platform data not supplied\n"); |
| 613 | return -ENODEV; |
| 614 | } |
| 615 | |
| 616 | info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); |
| 617 | if (!info) |
| 618 | return -ENOMEM; |
| 619 | |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 620 | switch (pdata->device_type) { |
| 621 | case S2MPS14X: |
| 622 | regmap_cfg = &s2mps14_rtc_regmap_config; |
| 623 | break; |
| 624 | case S5M8763X: |
| 625 | regmap_cfg = &s5m_rtc_regmap_config; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 626 | info->regs = &s5m_rtc_regs; |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 627 | break; |
| 628 | case S5M8767X: |
| 629 | regmap_cfg = &s5m_rtc_regmap_config; |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 630 | info->regs = &s5m_rtc_regs; |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 631 | break; |
| 632 | default: |
| 633 | dev_err(&pdev->dev, "Device type is not supported by RTC driver\n"); |
| 634 | return -ENODEV; |
| 635 | } |
| 636 | |
| 637 | info->i2c = i2c_new_dummy(s5m87xx->i2c->adapter, RTC_I2C_ADDR); |
| 638 | if (!info->i2c) { |
| 639 | dev_err(&pdev->dev, "Failed to allocate I2C for RTC\n"); |
| 640 | return -ENODEV; |
| 641 | } |
| 642 | |
| 643 | info->regmap = devm_regmap_init_i2c(info->i2c, regmap_cfg); |
| 644 | if (IS_ERR(info->regmap)) { |
| 645 | ret = PTR_ERR(info->regmap); |
| 646 | dev_err(&pdev->dev, "Failed to allocate RTC register map: %d\n", |
| 647 | ret); |
| 648 | goto err; |
| 649 | } |
| 650 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 651 | info->dev = &pdev->dev; |
| 652 | info->s5m87xx = s5m87xx; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 653 | info->device_type = s5m87xx->device_type; |
| 654 | info->wtsr_smpl = s5m87xx->wtsr_smpl; |
| 655 | |
| 656 | switch (pdata->device_type) { |
| 657 | case S5M8763X: |
Krzysztof Kozlowski | 7b003be | 2013-12-12 17:12:26 -0800 | [diff] [blame] | 658 | info->irq = regmap_irq_get_virq(s5m87xx->irq_data, |
| 659 | S5M8763_IRQ_ALARM0); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 660 | break; |
| 661 | |
| 662 | case S5M8767X: |
Krzysztof Kozlowski | 7b003be | 2013-12-12 17:12:26 -0800 | [diff] [blame] | 663 | info->irq = regmap_irq_get_virq(s5m87xx->irq_data, |
| 664 | S5M8767_IRQ_RTCA1); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 665 | break; |
| 666 | |
| 667 | default: |
| 668 | ret = -EINVAL; |
| 669 | dev_err(&pdev->dev, "Unsupported device type: %d\n", ret); |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 670 | goto err; |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 671 | } |
| 672 | |
| 673 | platform_set_drvdata(pdev, info); |
| 674 | |
| 675 | ret = s5m8767_rtc_init_reg(info); |
| 676 | |
| 677 | if (info->wtsr_smpl) { |
| 678 | s5m_rtc_enable_wtsr(info, true); |
| 679 | s5m_rtc_enable_smpl(info, true); |
| 680 | } |
| 681 | |
| 682 | device_init_wakeup(&pdev->dev, 1); |
| 683 | |
| 684 | info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc", |
| 685 | &s5m_rtc_ops, THIS_MODULE); |
| 686 | |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 687 | if (IS_ERR(info->rtc_dev)) { |
| 688 | ret = PTR_ERR(info->rtc_dev); |
| 689 | goto err; |
| 690 | } |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 691 | |
| 692 | ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL, |
| 693 | s5m_rtc_alarm_irq, 0, "rtc-alarm0", |
| 694 | info); |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 695 | if (ret < 0) { |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 696 | dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n", |
| 697 | info->irq, ret); |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 698 | goto err; |
| 699 | } |
| 700 | |
| 701 | return 0; |
| 702 | |
| 703 | err: |
| 704 | i2c_unregister_device(info->i2c); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 705 | |
| 706 | return ret; |
| 707 | } |
| 708 | |
| 709 | static void s5m_rtc_shutdown(struct platform_device *pdev) |
| 710 | { |
| 711 | struct s5m_rtc_info *info = platform_get_drvdata(pdev); |
| 712 | int i; |
| 713 | unsigned int val = 0; |
| 714 | if (info->wtsr_smpl) { |
| 715 | for (i = 0; i < 3; i++) { |
| 716 | s5m_rtc_enable_wtsr(info, false); |
Krzysztof Kozlowski | f8b23bb | 2014-06-10 15:18:44 -0700 | [diff] [blame^] | 717 | regmap_read(info->regmap, info->regs->smpl_wtsr, &val); |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 718 | pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val); |
| 719 | if (val & WTSR_ENABLE_MASK) |
| 720 | pr_emerg("%s: fail to disable WTSR\n", |
| 721 | __func__); |
| 722 | else { |
| 723 | pr_info("%s: success to disable WTSR\n", |
| 724 | __func__); |
| 725 | break; |
| 726 | } |
| 727 | } |
| 728 | } |
| 729 | /* Disable SMPL when power off */ |
| 730 | s5m_rtc_enable_smpl(info, false); |
| 731 | } |
| 732 | |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 733 | static int s5m_rtc_remove(struct platform_device *pdev) |
| 734 | { |
| 735 | struct s5m_rtc_info *info = platform_get_drvdata(pdev); |
| 736 | |
| 737 | /* Perform also all shutdown steps when removing */ |
| 738 | s5m_rtc_shutdown(pdev); |
| 739 | i2c_unregister_device(info->i2c); |
| 740 | |
| 741 | return 0; |
| 742 | } |
| 743 | |
Geert Uytterhoeven | 11ba5a1 | 2014-01-23 15:55:19 -0800 | [diff] [blame] | 744 | #ifdef CONFIG_PM_SLEEP |
Krzysztof Kozlowski | 222ead7 | 2013-12-12 17:12:30 -0800 | [diff] [blame] | 745 | static int s5m_rtc_resume(struct device *dev) |
| 746 | { |
| 747 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
| 748 | int ret = 0; |
| 749 | |
| 750 | if (device_may_wakeup(dev)) |
| 751 | ret = disable_irq_wake(info->irq); |
| 752 | |
| 753 | return ret; |
| 754 | } |
| 755 | |
| 756 | static int s5m_rtc_suspend(struct device *dev) |
| 757 | { |
| 758 | struct s5m_rtc_info *info = dev_get_drvdata(dev); |
| 759 | int ret = 0; |
| 760 | |
| 761 | if (device_may_wakeup(dev)) |
| 762 | ret = enable_irq_wake(info->irq); |
| 763 | |
| 764 | return ret; |
| 765 | } |
Geert Uytterhoeven | 11ba5a1 | 2014-01-23 15:55:19 -0800 | [diff] [blame] | 766 | #endif /* CONFIG_PM_SLEEP */ |
Krzysztof Kozlowski | 222ead7 | 2013-12-12 17:12:30 -0800 | [diff] [blame] | 767 | |
| 768 | static SIMPLE_DEV_PM_OPS(s5m_rtc_pm_ops, s5m_rtc_suspend, s5m_rtc_resume); |
| 769 | |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 770 | static const struct platform_device_id s5m_rtc_id[] = { |
| 771 | { "s5m-rtc", 0 }, |
| 772 | }; |
| 773 | |
| 774 | static struct platform_driver s5m_rtc_driver = { |
| 775 | .driver = { |
| 776 | .name = "s5m-rtc", |
| 777 | .owner = THIS_MODULE, |
Krzysztof Kozlowski | 222ead7 | 2013-12-12 17:12:30 -0800 | [diff] [blame] | 778 | .pm = &s5m_rtc_pm_ops, |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 779 | }, |
| 780 | .probe = s5m_rtc_probe, |
Krzysztof Kozlowski | e349c91 | 2014-04-14 09:40:45 +0200 | [diff] [blame] | 781 | .remove = s5m_rtc_remove, |
Sangbeom Kim | 5bccae6 | 2013-11-12 15:11:04 -0800 | [diff] [blame] | 782 | .shutdown = s5m_rtc_shutdown, |
| 783 | .id_table = s5m_rtc_id, |
| 784 | }; |
| 785 | |
| 786 | module_platform_driver(s5m_rtc_driver); |
| 787 | |
| 788 | /* Module information */ |
| 789 | MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>"); |
| 790 | MODULE_DESCRIPTION("Samsung S5M RTC driver"); |
| 791 | MODULE_LICENSE("GPL"); |
| 792 | MODULE_ALIAS("platform:s5m-rtc"); |