^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0+
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * drivers/rtc/rtc-rc5t619.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Real time clock driver for RICOH RC5T619 power management chip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (C) 2019 Andreas Kemnade
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/mfd/rn5t618.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/bcd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/rtc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/irqdomain.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct rc5t619_rtc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) int irq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct rtc_device *rtc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) struct rn5t618 *rn5t618;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define CTRL1_ALARM_ENABLED 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define CTRL1_24HR 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define CTRL1_PERIODIC_MASK 0xf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define CTRL2_PON 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CTRL2_ALARM_STATUS 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define CTRL2_CTFG 0x4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define CTRL2_CTC 0x1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define MONTH_CENTFLAG 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define HOUR_PMFLAG 0x20
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define MDAY_DAL_EXT 0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) static uint8_t rtc5t619_12hour_bcd2bin(uint8_t hour)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (hour & HOUR_PMFLAG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) hour = bcd2bin(hour & ~HOUR_PMFLAG);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return hour == 12 ? 12 : 12 + hour;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) hour = bcd2bin(hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return hour == 12 ? 0 : hour;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) static uint8_t rtc5t619_12hour_bin2bcd(uint8_t hour)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) if (!hour)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) return 0x12;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) if (hour < 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return bin2bcd(hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (hour == 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return 0x12 | HOUR_PMFLAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return bin2bcd(hour - 12) | HOUR_PMFLAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) static int rc5t619_rtc_periodic_disable(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) /* disable function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) err = regmap_update_bits(rtc->rn5t618->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) RN5T618_RTC_CTRL1, CTRL1_PERIODIC_MASK, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* clear alarm flag and CTFG */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) err = regmap_update_bits(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) CTRL2_ALARM_STATUS | CTRL2_CTFG | CTRL2_CTC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) /* things to be done once after power on */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static int rc5t619_rtc_pon_setup(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) unsigned int reg_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2, ®_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) /* clear VDET PON */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) reg_data &= ~(CTRL2_PON | CTRL2_CTC | 0x4a); /* 0101-1011 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) reg_data |= 0x20; /* 0010-0000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) err = regmap_write(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2, reg_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) /* clearing RTC Adjust register */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) err = regmap_write(rtc->rn5t618->regmap, RN5T618_RTC_ADJUST, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) return regmap_update_bits(rtc->rn5t618->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) RN5T618_RTC_CTRL1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) CTRL1_24HR, CTRL1_24HR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int rc5t619_rtc_read_time(struct device *dev, struct rtc_time *tm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) u8 buff[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) unsigned int ctrl1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) unsigned int ctrl2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2, &ctrl2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) if (ctrl2 & CTRL2_PON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL1, &ctrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) err = regmap_bulk_read(rtc->rn5t618->regmap, RN5T618_RTC_SECONDS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) buff, sizeof(buff));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) if (buff[5] & MONTH_CENTFLAG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) cent_flag = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) cent_flag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) tm->tm_sec = bcd2bin(buff[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) tm->tm_min = bcd2bin(buff[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (ctrl1 & CTRL1_24HR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) tm->tm_hour = bcd2bin(buff[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) tm->tm_hour = rtc5t619_12hour_bcd2bin(buff[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) tm->tm_wday = bcd2bin(buff[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) tm->tm_mday = bcd2bin(buff[4]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) tm->tm_mon = bcd2bin(buff[5] & 0x1f) - 1; /* back to system 0-11 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) tm->tm_year = bcd2bin(buff[6]) + 100 * cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static int rc5t619_rtc_set_time(struct device *dev, struct rtc_time *tm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) u8 buff[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) int cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) unsigned int ctrl1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) unsigned int ctrl2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2, &ctrl2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) if (ctrl2 & CTRL2_PON)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) rc5t619_rtc_pon_setup(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL1, &ctrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) if (tm->tm_year >= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) cent_flag = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) cent_flag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) buff[0] = bin2bcd(tm->tm_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) buff[1] = bin2bcd(tm->tm_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) if (ctrl1 & CTRL1_24HR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) buff[2] = bin2bcd(tm->tm_hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) buff[2] = rtc5t619_12hour_bin2bcd(tm->tm_hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) buff[3] = bin2bcd(tm->tm_wday);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) buff[4] = bin2bcd(tm->tm_mday);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) buff[5] = bin2bcd(tm->tm_mon + 1); /* system set 0-11 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) buff[6] = bin2bcd(tm->tm_year - cent_flag * 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (cent_flag)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) buff[5] |= MONTH_CENTFLAG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) err = regmap_bulk_write(rtc->rn5t618->regmap, RN5T618_RTC_SECONDS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) buff, sizeof(buff));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) dev_err(dev, "failed to program new time: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) /* 0-disable, 1-enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) static int rc5t619_rtc_alarm_enable(struct device *dev, unsigned int enabled)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return regmap_update_bits(rtc->rn5t618->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) RN5T618_RTC_CTRL1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) CTRL1_ALARM_ENABLED,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) enabled ? CTRL1_ALARM_ENABLED : 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) static int rc5t619_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) u8 buff[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) unsigned int buff_cent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) int cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) unsigned int ctrl1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL1, &ctrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_MONTH, &buff_cent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) dev_err(dev, "failed to read time: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (buff_cent & MONTH_CENTFLAG)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) cent_flag = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) cent_flag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) err = regmap_bulk_read(rtc->rn5t618->regmap, RN5T618_RTC_ALARM_Y_SEC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) buff, sizeof(buff));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) buff[3] = buff[3] & 0x3f;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) alrm->time.tm_sec = bcd2bin(buff[0]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) alrm->time.tm_min = bcd2bin(buff[1]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) if (ctrl1 & CTRL1_24HR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) alrm->time.tm_hour = bcd2bin(buff[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) alrm->time.tm_hour = rtc5t619_12hour_bcd2bin(buff[2]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) alrm->time.tm_mday = bcd2bin(buff[3]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) alrm->time.tm_mon = bcd2bin(buff[4]) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) alrm->time.tm_year = bcd2bin(buff[5]) + 100 * cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) alrm->enabled = !!(ctrl1 & CTRL1_ALARM_ENABLED);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) dev_dbg(dev, "read alarm: %ptR\n", &alrm->time);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static int rc5t619_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) u8 buff[6];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) int cent_flag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) unsigned int ctrl1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL1, &ctrl1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) err = rc5t619_rtc_alarm_enable(dev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) if (rtc->irq == -1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) if (alrm->enabled == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (alrm->time.tm_year >= 100)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) cent_flag = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) cent_flag = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) alrm->time.tm_mon += 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) buff[0] = bin2bcd(alrm->time.tm_sec);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) buff[1] = bin2bcd(alrm->time.tm_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) if (ctrl1 & CTRL1_24HR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) buff[2] = bin2bcd(alrm->time.tm_hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) buff[2] = rtc5t619_12hour_bin2bcd(alrm->time.tm_hour);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) buff[3] = bin2bcd(alrm->time.tm_mday);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) buff[4] = bin2bcd(alrm->time.tm_mon);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) buff[5] = bin2bcd(alrm->time.tm_year - 100 * cent_flag);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) buff[3] |= MDAY_DAL_EXT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) err = regmap_bulk_write(rtc->rn5t618->regmap, RN5T618_RTC_ALARM_Y_SEC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) buff, sizeof(buff));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) return rc5t619_rtc_alarm_enable(dev, alrm->enabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) static const struct rtc_class_ops rc5t619_rtc_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) .read_time = rc5t619_rtc_read_time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) .set_time = rc5t619_rtc_set_time,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) .set_alarm = rc5t619_rtc_set_alarm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) .read_alarm = rc5t619_rtc_read_alarm,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) .alarm_irq_enable = rc5t619_rtc_alarm_enable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) static int rc5t619_rtc_alarm_flag_clr(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) /* clear alarm-D status bits.*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) return regmap_update_bits(rtc->rn5t618->regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) RN5T618_RTC_CTRL2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) CTRL2_ALARM_STATUS | CTRL2_CTC, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) static irqreturn_t rc5t619_rtc_irq(int irq, void *data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) struct device *dev = data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct rc5t619_rtc *rtc = dev_get_drvdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) rc5t619_rtc_alarm_flag_clr(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) static int rc5t619_rtc_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) struct rn5t618 *rn5t618 = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) struct rc5t619_rtc *rtc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) unsigned int ctrl2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) rtc = devm_kzalloc(dev, sizeof(*rtc), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) if (!rtc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) rtc->rn5t618 = rn5t618;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) dev_set_drvdata(dev, rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) rtc->irq = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) if (rn5t618->irq_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) rtc->irq = regmap_irq_get_virq(rn5t618->irq_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) RN5T618_IRQ_RTC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) if (rtc->irq < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) rtc->irq = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) err = regmap_read(rtc->rn5t618->regmap, RN5T618_RTC_CTRL2, &ctrl2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) /* disable rtc periodic function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) err = rc5t619_rtc_periodic_disable(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) if (ctrl2 & CTRL2_PON) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) err = rc5t619_rtc_alarm_flag_clr(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) rtc->rtc = devm_rtc_allocate_device(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) if (IS_ERR(rtc->rtc)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) err = PTR_ERR(rtc->rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) dev_err(dev, "RTC device register: err %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) rtc->rtc->ops = &rc5t619_rtc_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_1900;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) rtc->rtc->range_max = RTC_TIMESTAMP_END_2099;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) /* set interrupt and enable it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) if (rtc->irq != -1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) err = devm_request_threaded_irq(&pdev->dev, rtc->irq, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) rc5t619_rtc_irq,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) IRQF_ONESHOT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) "rtc-rc5t619",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) &pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) dev_err(&pdev->dev, "request IRQ:%d fail\n", rtc->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) rtc->irq = -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) err = rc5t619_rtc_alarm_enable(&pdev->dev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) /* enable wake */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) device_init_wakeup(&pdev->dev, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) enable_irq_wake(rtc->irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) /* system don't want to using alarm interrupt, so close it */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) err = rc5t619_rtc_alarm_enable(&pdev->dev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) dev_warn(&pdev->dev, "rc5t619 interrupt is disabled\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) return rtc_register_device(rtc->rtc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) static struct platform_driver rc5t619_rtc_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) .name = "rc5t619-rtc",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) .probe = rc5t619_rtc_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) module_platform_driver(rc5t619_rtc_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) MODULE_ALIAS("platform:rc5t619-rtc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) MODULE_DESCRIPTION("RICOH RC5T619 RTC driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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