152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* 252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * Micro Crystal RV-3029C2 rtc class driver 352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * 452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * Author: Gregory Hermant <gregory.hermant@calao-systems.com> 552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * 652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * based on previously existing rtc class drivers 752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * 852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * This program is free software; you can redistribute it and/or modify 952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * it under the terms of the GNU General Public License version 2 as 1052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * published by the Free Software Foundation. 1152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * 1252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * NOTE: Currently this driver only supports the bare minimum for read 1352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * and write the RTC and alarms. The extra features provided by this chip 1452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * (trickle charger, eeprom, T° compensation) are unavailable. 1552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher */ 1652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 1752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#include <linux/module.h> 1852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#include <linux/i2c.h> 1952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#include <linux/bcd.h> 2052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#include <linux/rtc.h> 2152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 2252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* Register map */ 2352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* control section */ 2452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_ONOFF_CTRL 0x00 2552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_IRQ_CTRL 0x01 2652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_IRQ_CTRL_AIE (1 << 0) 2752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_IRQ_FLAGS 0x02 2852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_IRQ_FLAGS_AF (1 << 0) 2952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS 0x03 3052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS_VLOW1 (1 << 2) 3152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS_VLOW2 (1 << 3) 3252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS_SR (1 << 4) 3352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS_PON (1 << 5) 3452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_STATUS_EEBUSY (1 << 7) 3552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_RST_CTRL 0x04 3652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_CONTROL_SECTION_LEN 0x05 3752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 3852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* watch section */ 3952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_SEC 0x08 4052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_MINUTES 0x09 4152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_HOURS 0x0A 4252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_REG_HR_12_24 (1<<6) /* 24h/12h mode */ 4352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_REG_HR_PM (1<<5) /* PM/AM bit in 12h mode */ 4452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_DATE 0x0B 4552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_DAYS 0x0C 4652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_MONTHS 0x0D 4752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_W_YEARS 0x0E 4852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_WATCH_SECTION_LEN 0x07 4952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 5052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* alarm section */ 5152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_SC 0x10 5252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_MN 0x11 5352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_HR 0x12 5452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_DT 0x13 5552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_DW 0x14 5652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_MO 0x15 5752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_A_YR 0x16 5852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_ALARM_SECTION_LEN 0x07 5952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 6052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* timer section */ 6152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TIMER_LOW 0x18 6252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TIMER_HIGH 0x19 6352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 6452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* temperature section */ 6552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TEMP_PAGE 0x20 6652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 6752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* eeprom data section */ 6852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_E2P_EEDATA1 0x28 6952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_E2P_EEDATA2 0x29 7052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 7152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* eeprom control section */ 7252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_CONTROL_E2P_EECTRL 0x30 7352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TRICKLE_1K (1<<0) /* 1K resistance */ 7452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TRICKLE_5K (1<<1) /* 5K resistance */ 7552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TRICKLE_20K (1<<2) /* 20K resistance */ 7652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_TRICKLE_80K (1<<3) /* 80K resistance */ 7752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_CONTROL_E2P_XTALOFFSET 0x31 7852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_CONTROL_E2P_QCOEF 0x32 7952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_CONTROL_E2P_TURNOVER 0x33 8052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 8152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher/* user ram section */ 8252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_USR1_RAM_PAGE 0x38 8352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_USR1_SECTION_LEN 0x04 8452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_USR2_RAM_PAGE 0x3C 8552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher#define RV3029C2_USR2_SECTION_LEN 0x04 8652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 8752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 8852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_read_regs(struct i2c_client *client, u8 reg, u8 *buf, 8952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher unsigned len) 9052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 9152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 9252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 9352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if ((reg > RV3029C2_USR1_RAM_PAGE + 7) || 9452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher (reg + len > RV3029C2_USR1_RAM_PAGE + 8)) 9552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EINVAL; 9652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 9752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = i2c_smbus_read_i2c_block_data(client, reg, len, buf); 9852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) 9952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 10052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < len) 10152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 10252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 10352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 10452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 10552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 10652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_write_regs(struct i2c_client *client, u8 reg, u8 const buf[], 10752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher unsigned len) 10852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 10952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if ((reg > RV3029C2_USR1_RAM_PAGE + 7) || 11052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher (reg + len > RV3029C2_USR1_RAM_PAGE + 8)) 11152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EINVAL; 11252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 11352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return i2c_smbus_write_i2c_block_data(client, reg, len, buf); 11452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 11552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 11652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 11752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_get_sr(struct i2c_client *client, u8 *buf) 11852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 11952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret = rv3029c2_i2c_read_regs(client, RV3029C2_STATUS, buf, 1); 12052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 12152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) 12252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 12352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_dbg(&client->dev, "status = 0x%.2x (%d)\n", buf[0], buf[0]); 12452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 12552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 12652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 12752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 12852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_set_sr(struct i2c_client *client, u8 val) 12952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 13052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 buf[1]; 13152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int sr; 13252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 13352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf[0] = val; 13452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher sr = rv3029c2_i2c_write_regs(client, RV3029C2_STATUS, buf, 1); 13552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_dbg(&client->dev, "status = 0x%.2x (%d)\n", buf[0], buf[0]); 13652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (sr < 0) 13752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 13852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 13952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 14052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 14152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 14252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_read_time(struct i2c_client *client, struct rtc_time *tm) 14352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 14452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 buf[1]; 14552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 14652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 regs[RV3029C2_WATCH_SECTION_LEN] = { 0, }; 14752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 14852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_get_sr(client, buf); 14952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 15052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading SR failed\n", __func__); 15152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 15252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 15352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 15452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_read_regs(client, RV3029C2_W_SEC , regs, 15552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher RV3029C2_WATCH_SECTION_LEN); 15652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 15752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading RTC section failed\n", 15852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher __func__); 15952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 16052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 16152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 16252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_sec = bcd2bin(regs[RV3029C2_W_SEC-RV3029C2_W_SEC]); 16352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_min = bcd2bin(regs[RV3029C2_W_MINUTES-RV3029C2_W_SEC]); 16452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 16552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* HR field has a more complex interpretation */ 16652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher { 16752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher const u8 _hr = regs[RV3029C2_W_HOURS-RV3029C2_W_SEC]; 16852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (_hr & RV3029C2_REG_HR_12_24) { 16952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* 12h format */ 17052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_hour = bcd2bin(_hr & 0x1f); 17152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (_hr & RV3029C2_REG_HR_PM) /* PM flag set */ 17252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_hour += 12; 17352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } else /* 24h format */ 17452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_hour = bcd2bin(_hr & 0x3f); 17552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 17652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 17752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_mday = bcd2bin(regs[RV3029C2_W_DATE-RV3029C2_W_SEC]); 17852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_mon = bcd2bin(regs[RV3029C2_W_MONTHS-RV3029C2_W_SEC]) - 1; 17952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_year = bcd2bin(regs[RV3029C2_W_YEARS-RV3029C2_W_SEC]) + 100; 18052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_wday = bcd2bin(regs[RV3029C2_W_DAYS-RV3029C2_W_SEC]) - 1; 18152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 18252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 18352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 18452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 18552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int rv3029c2_rtc_read_time(struct device *dev, struct rtc_time *tm) 18652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 18752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return rv3029c2_i2c_read_time(to_i2c_client(dev), tm); 18852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 18952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 19052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 19152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_read_alarm(struct i2c_client *client, struct rtc_wkalrm *alarm) 19252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 19352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher struct rtc_time *const tm = &alarm->time; 19452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 19552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 regs[8]; 19652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 19752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_get_sr(client, regs); 19852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 19952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading SR failed\n", __func__); 20052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 20152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 20252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 20352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_read_regs(client, RV3029C2_A_SC, regs, 20452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher RV3029C2_ALARM_SECTION_LEN); 20552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 20652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 20752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading alarm section failed\n", 20852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher __func__); 20952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 21052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 21152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 21252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_sec = bcd2bin(regs[RV3029C2_A_SC-RV3029C2_A_SC] & 0x7f); 21352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_min = bcd2bin(regs[RV3029C2_A_MN-RV3029C2_A_SC] & 0x7f); 21452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_hour = bcd2bin(regs[RV3029C2_A_HR-RV3029C2_A_SC] & 0x3f); 21552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_mday = bcd2bin(regs[RV3029C2_A_DT-RV3029C2_A_SC] & 0x3f); 21652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_mon = bcd2bin(regs[RV3029C2_A_MO-RV3029C2_A_SC] & 0x1f) - 1; 21752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_year = bcd2bin(regs[RV3029C2_A_YR-RV3029C2_A_SC] & 0x7f) + 100; 21852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher tm->tm_wday = bcd2bin(regs[RV3029C2_A_DW-RV3029C2_A_SC] & 0x07) - 1; 21952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 22052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 22152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 22252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 22352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 22452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alarm) 22552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 22652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return rv3029c2_i2c_read_alarm(to_i2c_client(dev), alarm); 22752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 22852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 22952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int rv3029c2_rtc_i2c_alarm_set_irq(struct i2c_client *client, 23052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int enable) 23152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 23252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 23352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 buf[1]; 23452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 23552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* enable AIE irq */ 23652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_read_regs(client, RV3029C2_IRQ_CTRL, buf, 1); 23752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 23852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "can't read INT reg\n"); 23952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 24052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 24152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (enable) 24252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf[0] |= RV3029C2_IRQ_CTRL_AIE; 24352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher else 24452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf[0] &= ~RV3029C2_IRQ_CTRL_AIE; 24552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 24652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_write_regs(client, RV3029C2_IRQ_CTRL, buf, 1); 24752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 24852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "can't set INT reg\n"); 24952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 25052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 25152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 25252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 25352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 25452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 25552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int rv3029c2_rtc_i2c_set_alarm(struct i2c_client *client, 25652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher struct rtc_wkalrm *alarm) 25752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 25852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher struct rtc_time *const tm = &alarm->time; 25952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 26052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 regs[8]; 26152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 26252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* 26352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * The clock has an 8 bit wide bcd-coded register (they never learn) 26452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * for the year. tm_year is an offset from 1900 and we are interested 26552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * in the 2000-2099 range, so any value less than 100 is invalid. 26652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher */ 26752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (tm->tm_year < 100) 26852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EINVAL; 26952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 27052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_get_sr(client, regs); 27152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 27252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading SR failed\n", __func__); 27352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EIO; 27452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 27552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_SC-RV3029C2_A_SC] = bin2bcd(tm->tm_sec & 0x7f); 27652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_MN-RV3029C2_A_SC] = bin2bcd(tm->tm_min & 0x7f); 27752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_HR-RV3029C2_A_SC] = bin2bcd(tm->tm_hour & 0x3f); 27852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_DT-RV3029C2_A_SC] = bin2bcd(tm->tm_mday & 0x3f); 27952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_MO-RV3029C2_A_SC] = bin2bcd((tm->tm_mon & 0x1f) - 1); 28052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_DW-RV3029C2_A_SC] = bin2bcd((tm->tm_wday & 7) - 1); 28152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_A_YR-RV3029C2_A_SC] = bin2bcd((tm->tm_year & 0x7f) - 100); 28252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 28352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_write_regs(client, RV3029C2_A_SC, regs, 28452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher RV3029C2_ALARM_SECTION_LEN); 28552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) 28652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 28752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 28852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (alarm->enabled) { 28952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 buf[1]; 29052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 29152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* clear AF flag */ 29252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_read_regs(client, RV3029C2_IRQ_FLAGS, 29352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf, 1); 29452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 29552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "can't read alarm flag\n"); 29652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 29752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 29852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf[0] &= ~RV3029C2_IRQ_FLAGS_AF; 29952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_write_regs(client, RV3029C2_IRQ_FLAGS, 30052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher buf, 1); 30152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 30252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "can't set alarm flag\n"); 30352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 30452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 30552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* enable AIE irq */ 30652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_rtc_i2c_alarm_set_irq(client, 1); 30752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret) 30852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 30952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 31052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_dbg(&client->dev, "alarm IRQ armed\n"); 31152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } else { 31252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* disable AIE irq */ 31329ecd78c0fd6ee05f2c6b07b23823a6ae43c13ffAxel Lin ret = rv3029c2_rtc_i2c_alarm_set_irq(client, 0); 31452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret) 31552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 31652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 31752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_dbg(&client->dev, "alarm IRQ disabled\n"); 31852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 31952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 32052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 32152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 32252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 32352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int rv3029c2_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm) 32452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 32552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return rv3029c2_rtc_i2c_set_alarm(to_i2c_client(dev), alarm); 32652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 32752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 32852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int 32952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherrv3029c2_i2c_set_time(struct i2c_client *client, struct rtc_time const *tm) 33052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 33152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 regs[8]; 33252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int ret; 33352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 33452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* 33552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * The clock has an 8 bit wide bcd-coded register (they never learn) 33652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * for the year. tm_year is an offset from 1900 and we are interested 33752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher * in the 2000-2099 range, so any value less than 100 is invalid. 33852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher */ 33952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (tm->tm_year < 100) 34052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -EINVAL; 34152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 34252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_SEC-RV3029C2_W_SEC] = bin2bcd(tm->tm_sec); 34352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_MINUTES-RV3029C2_W_SEC] = bin2bcd(tm->tm_min); 34452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_HOURS-RV3029C2_W_SEC] = bin2bcd(tm->tm_hour); 34552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_DATE-RV3029C2_W_SEC] = bin2bcd(tm->tm_mday); 34652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_MONTHS-RV3029C2_W_SEC] = bin2bcd(tm->tm_mon+1); 34752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_DAYS-RV3029C2_W_SEC] = bin2bcd((tm->tm_wday & 7)+1); 34852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher regs[RV3029C2_W_YEARS-RV3029C2_W_SEC] = bin2bcd(tm->tm_year - 100); 34952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 35052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_write_regs(client, RV3029C2_W_SEC, regs, 35152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher RV3029C2_WATCH_SECTION_LEN); 35252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) 35352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 35452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 35552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_get_sr(client, regs); 35652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 35752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading SR failed\n", __func__); 35852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 35952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 36052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher /* clear PON bit */ 36152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher ret = rv3029c2_i2c_set_sr(client, (regs[0] & ~RV3029C2_STATUS_PON)); 36252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (ret < 0) { 36352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher dev_err(&client->dev, "%s: reading SR failed\n", __func__); 36452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return ret; 36552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher } 36652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 36752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 36852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 36952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 37052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic int rv3029c2_rtc_set_time(struct device *dev, struct rtc_time *tm) 37152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 37252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return rv3029c2_i2c_set_time(to_i2c_client(dev), tm); 37352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 37452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 37552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic const struct rtc_class_ops rv3029c2_rtc_ops = { 37652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .read_time = rv3029c2_rtc_read_time, 37752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .set_time = rv3029c2_rtc_set_time, 37852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .read_alarm = rv3029c2_rtc_read_alarm, 37952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .set_alarm = rv3029c2_rtc_set_alarm, 38052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher}; 38152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 38252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic struct i2c_device_id rv3029c2_id[] = { 38352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher { "rv3029c2", 0 }, 38452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher { } 38552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher}; 38652365230eed7e291bbb2a015465cac48bcb3928fHeiko SchocherMODULE_DEVICE_TABLE(i2c, rv3029c2_id); 38752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 3885a167f4543e45d45c5672a5cd6cb8ba5ddf4f3eaGreg Kroah-Hartmanstatic int rv3029c2_probe(struct i2c_client *client, 3895a167f4543e45d45c5672a5cd6cb8ba5ddf4f3eaGreg Kroah-Hartman const struct i2c_device_id *id) 39052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher{ 39152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher struct rtc_device *rtc; 39252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher int rc = 0; 39352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher u8 buf[1]; 39452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 39552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_EMUL)) 39652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return -ENODEV; 39752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 39867ab2440b40610b3b91068844640df6d3de3464fGregory Hermant rc = rv3029c2_i2c_get_sr(client, buf); 39967ab2440b40610b3b91068844640df6d3de3464fGregory Hermant if (rc < 0) { 40067ab2440b40610b3b91068844640df6d3de3464fGregory Hermant dev_err(&client->dev, "reading status failed\n"); 40167ab2440b40610b3b91068844640df6d3de3464fGregory Hermant return rc; 40267ab2440b40610b3b91068844640df6d3de3464fGregory Hermant } 40367ab2440b40610b3b91068844640df6d3de3464fGregory Hermant 4043d7068c9d505baffc140f23465c5f998c2237b73Jingoo Han rtc = devm_rtc_device_register(&client->dev, client->name, 4053d7068c9d505baffc140f23465c5f998c2237b73Jingoo Han &rv3029c2_rtc_ops, THIS_MODULE); 40652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 40752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher if (IS_ERR(rtc)) 40852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return PTR_ERR(rtc); 40952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 41052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher i2c_set_clientdata(client, rtc); 41152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 41252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher return 0; 41352365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher} 41452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 41552365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocherstatic struct i2c_driver rv3029c2_driver = { 41652365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .driver = { 41752365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .name = "rtc-rv3029c2", 41852365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher }, 41952365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .probe = rv3029c2_probe, 42052365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher .id_table = rv3029c2_id, 42152365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher}; 42252365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 4230abc920116303e81702a38429a1b61a896e02b37Axel Linmodule_i2c_driver(rv3029c2_driver); 42452365230eed7e291bbb2a015465cac48bcb3928fHeiko Schocher 42552365230eed7e291bbb2a015465cac48bcb3928fHeiko SchocherMODULE_AUTHOR("Gregory Hermant <gregory.hermant@calao-systems.com>"); 42652365230eed7e291bbb2a015465cac48bcb3928fHeiko SchocherMODULE_DESCRIPTION("Micro Crystal RV3029C2 RTC driver"); 42752365230eed7e291bbb2a015465cac48bcb3928fHeiko SchocherMODULE_LICENSE("GPL"); 428