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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2014-2019 MediaTek Inc.
*
* Author: Tianping.Fang <[email protected]>
* Sean Wang <[email protected]>
*/
#ifndef _LINUX_MFD_MT6397_RTC_H_
#define _LINUX_MFD_MT6397_RTC_H_
#include <linux/jiffies.h>
#include <linux/mutex.h>
#include <linux/regmap.h>
#include <linux/rtc.h>
#define RTC_BBPU 0x0000
#define RTC_BBPU_CBUSY BIT(6)
#define RTC_BBPU_KEY (0x43 << 8)
#define RTC_WRTGR_MT6358 0x003a
#define RTC_WRTGR_MT6397 0x003c
#define RTC_WRTGR_MT6323 RTC_WRTGR_MT6397
#define RTC_IRQ_STA 0x0002
#define RTC_IRQ_STA_AL BIT(0)
#define RTC_IRQ_STA_LP BIT(3)
#define RTC_IRQ_EN 0x0004
#define RTC_IRQ_EN_AL BIT(0)
#define RTC_IRQ_EN_ONESHOT BIT(2)
#define RTC_IRQ_EN_LP BIT(3)
#define RTC_IRQ_EN_ONESHOT_AL (RTC_IRQ_EN_ONESHOT | RTC_IRQ_EN_AL)
#define RTC_AL_MASK 0x0008
#define RTC_AL_MASK_DOW BIT(4)
#define RTC_TC_SEC 0x000a
#define RTC_TC_MTH_MASK 0x000f
/* Min, Hour, Dom... register offset to RTC_TC_SEC */
#define RTC_OFFSET_SEC 0
#define RTC_OFFSET_MIN 1
#define RTC_OFFSET_HOUR 2
#define RTC_OFFSET_DOM 3
#define RTC_OFFSET_DOW 4
#define RTC_OFFSET_MTH 5
#define RTC_OFFSET_YEAR 6
#define RTC_OFFSET_COUNT 7
#define RTC_AL_SEC 0x0018
#define RTC_AL_SEC_MASK 0x003f
#define RTC_AL_MIN_MASK 0x003f
#define RTC_AL_HOU_MASK 0x001f
#define RTC_AL_DOM_MASK 0x001f
#define RTC_AL_DOW_MASK 0x0007
#define RTC_AL_MTH_MASK 0x000f
#define RTC_AL_YEA_MASK 0x007f
#define RTC_PDN2 0x002e
#define RTC_PDN2_PWRON_ALARM BIT(4)
#define RTC_MIN_YEAR 1968
#define RTC_BASE_YEAR 1900
#define RTC_NUM_YEARS 128
#define RTC_MIN_YEAR_OFFSET (RTC_MIN_YEAR - RTC_BASE_YEAR)
#define MTK_RTC_POLL_DELAY_US 10
#define MTK_RTC_POLL_TIMEOUT (jiffies_to_usecs(HZ))
struct mtk_rtc_data {
u32 wrtgr;
};
struct mt6397_rtc {
struct rtc_device *rtc_dev;
/* Protect register access from multiple tasks */
struct mutex lock;
struct regmap *regmap;
int irq;
u32 addr_base;
const struct mtk_rtc_data *data;
};
#endif /* _LINUX_MFD_MT6397_RTC_H_ */