diff options
Diffstat (limited to 'drivers/rtc/rtc-em3027.c')
| -rw-r--r-- | drivers/rtc/rtc-em3027.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-em3027.c b/drivers/rtc/rtc-em3027.c index fccf36699245..dc1ccbc65dcb 100644 --- a/drivers/rtc/rtc-em3027.c +++ b/drivers/rtc/rtc-em3027.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * An rtc/i2c driver for the EM Microelectronic EM3027 * Copyright 2011 CompuLab, Ltd. @@ -5,16 +6,13 @@ * Author: Mike Rapoport <mike@compulab.co.il> * * Based on rtc-ds1672.c by Alessandro Zummo <a.zummo@towertech.it> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ #include <linux/i2c.h> #include <linux/rtc.h> #include <linux/bcd.h> #include <linux/module.h> +#include <linux/of.h> /* Registers */ #define EM3027_REG_ON_OFF_CTRL 0x00 @@ -73,7 +71,7 @@ static int em3027_get_time(struct device *dev, struct rtc_time *tm) tm->tm_hour = bcd2bin(buf[2]); tm->tm_mday = bcd2bin(buf[3]); tm->tm_wday = bcd2bin(buf[4]); - tm->tm_mon = bcd2bin(buf[5]); + tm->tm_mon = bcd2bin(buf[5]) - 1; tm->tm_year = bcd2bin(buf[6]) + 100; return 0; @@ -96,7 +94,7 @@ static int em3027_set_time(struct device *dev, struct rtc_time *tm) buf[3] = bin2bcd(tm->tm_hour); buf[4] = bin2bcd(tm->tm_mday); buf[5] = bin2bcd(tm->tm_wday); - buf[6] = bin2bcd(tm->tm_mon); + buf[6] = bin2bcd(tm->tm_mon + 1); buf[7] = bin2bcd(tm->tm_year % 100); /* write time/date registers */ @@ -113,8 +111,7 @@ static const struct rtc_class_ops em3027_rtc_ops = { .set_time = em3027_set_time, }; -static int em3027_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int em3027_probe(struct i2c_client *client) { struct rtc_device *rtc; @@ -131,16 +128,26 @@ static int em3027_probe(struct i2c_client *client, return 0; } -static struct i2c_device_id em3027_id[] = { - { "em3027", 0 }, +static const struct i2c_device_id em3027_id[] = { + { "em3027" }, { } }; +MODULE_DEVICE_TABLE(i2c, em3027_id); + +#ifdef CONFIG_OF +static const struct of_device_id em3027_of_match[] = { + { .compatible = "emmicro,em3027", }, + {} +}; +MODULE_DEVICE_TABLE(of, em3027_of_match); +#endif static struct i2c_driver em3027_driver = { .driver = { .name = "rtc-em3027", + .of_match_table = of_match_ptr(em3027_of_match), }, - .probe = &em3027_probe, + .probe = em3027_probe, .id_table = em3027_id, }; |