Added missing tegra files.HEADmaster

1 files changed, 617 insertions, 0 deletions

diff --git a/drivers/rtc/rtc-max77663.c b/drivers/rtc/rtc-max77663.c
new file mode 100644
index 00000000000..874a2df86dc
--- /dev/null
+++ b/drivers/rtc/rtc-max77663.c
@@ -0,0 +1,617 @@
+/*
+ * drivers/rtc/rtc-max77663.c
+ * Max77663 RTC driver
+ *
+ * Copyright 2011 Maxim Integrated Products, Inc.
+ * Copyright (C) 2011 NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ */
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/rtc.h>
+#include <linux/mfd/max77663-core.h>
+
+/* RTC Registers */
+#define MAX77663_RTC_IRQ                0x00
+#define MAX77663_RTC_IRQ_MASK           0x01
+#define MAX77663_RTC_CTRL_MODE          0x02
+#define MAX77663_RTC_CTRL               0x03
+#define MAX77663_RTC_UPDATE0            0x04
+#define MAX77663_RTC_UPDATE1            0x05
+#define MAX77663_RTC_SEC                0x07
+#define MAX77663_RTC_MIN                0x08
+#define MAX77663_RTC_HOUR               0x09
+#define MAX77663_RTC_WEEKDAY            0x0A
+#define MAX77663_RTC_MONTH              0x0B
+#define MAX77663_RTC_YEAR               0x0C
+#define MAX77663_RTC_MONTHDAY           0x0D
+#define MAX77663_RTC_ALARM_SEC1         0x0E
+#define MAX77663_RTC_ALARM_MIN1         0x0F
+#define MAX77663_RTC_ALARM_HOUR1        0x10
+#define MAX77663_RTC_ALARM_WEEKDAY1     0x11
+#define MAX77663_RTC_ALARM_MONTH1       0x12
+#define MAX77663_RTC_ALARM_YEAR1        0x13
+#define MAX77663_RTC_ALARM_MONTHDAY1    0x14
+
+#define RTC_IRQ_60SEC_MASK              (1 << 0)
+#define RTC_IRQ_ALARM1_MASK             (1 << 1)
+#define RTC_IRQ_ALARM2_MASK             (1 << 2)
+#define RTC_IRQ_SMPL_MASK               (1 << 3)
+#define RTC_IRQ_1SEC_MASK               (1 << 4)
+#define RTC_IRQ_MASK                    0x1F
+
+#define BCD_MODE_MASK                   (1 << 0)
+#define HR_MODE_MASK                    (1 << 1)
+
+#define WB_UPDATE_MASK                  (1 << 0)
+#define FLAG_AUTO_CLEAR_MASK            (1 << 1)
+#define FREEZE_SEC_MASK                 (1 << 2)
+#define RTC_WAKE_MASK                   (1 << 3)
+#define RB_UPDATE_MASK                  (1 << 4)
+
+#define WB_UPDATE_FLAG_MASK             (1 << 0)
+#define RB_UPDATE_FLAG_MASK             (1 << 1)
+
+#define SEC_MASK                        0x7F
+#define MIN_MASK                        0x7F
+#define HOUR_MASK                       0x3F
+#define WEEKDAY_MASK                    0x7F
+#define MONTH_MASK                      0x1F
+#define YEAR_MASK                       0xFF
+#define MONTHDAY_MASK                   0x3F
+
+#define ALARM_EN_MASK                   0x80
+#define ALARM_EN_SHIFT                  7
+
+#define RTC_YEAR_BASE                   100
+#define RTC_YEAR_MAX                    99
+
+/* ON/OFF Registers */
+#define MAX77663_REG_ONOFF_CFG2         0x42
+
+#define ONOFF_WK_ALARM1_MASK            (1 << 2)
+
+enum {
+        RTC_SEC,
+        RTC_MIN,
+        RTC_HOUR,
+        RTC_WEEKDAY,
+        RTC_MONTH,
+        RTC_YEAR,
+        RTC_MONTHDAY,
+        RTC_NR
+};
+
+struct max77663_rtc {
+        struct rtc_device *rtc;
+        struct device *dev;
+
+        struct mutex io_lock;
+        int irq;
+        u8 irq_mask;
+};
+
+static inline struct device *_to_parent(struct max77663_rtc *rtc)
+{
+        return rtc->dev->parent;
+}
+
+static inline int max77663_rtc_update_buffer(struct max77663_rtc *rtc,
+                                             int write)
+{
+        struct device *parent = _to_parent(rtc);
+        u8 val =  FLAG_AUTO_CLEAR_MASK | RTC_WAKE_MASK;
+        int ret;
+
+        if (write)
+                val |= WB_UPDATE_MASK;
+        else
+                val |= RB_UPDATE_MASK;
+
+        dev_dbg(rtc->dev, "rtc_update_buffer: write=%d, addr=0x%x, val=0x%x\n",
+                write, MAX77663_RTC_UPDATE0, val);
+        ret = max77663_write(parent, MAX77663_RTC_UPDATE0, &val, 1, 1);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_update_buffer: "
+                        "Failed to get rtc update0\n");
+                return ret;
+        }
+
+        /*
+         * Must wait 14ms for buffer update.
+         * If the sleeping time is 10us - 20ms, usleep_range() is recommended.
+         * Please refer Documentation/timers/timers-howto.txt.
+         */
+        usleep_range(14000, 14000);
+
+        return 0;
+}
+
+static inline int max77663_rtc_write(struct max77663_rtc *rtc, u8 addr,
+                                     void *values, u32 len, int update_buffer)
+{
+        struct device *parent = _to_parent(rtc);
+        int ret;
+
+        mutex_lock(&rtc->io_lock);
+
+        dev_dbg(rtc->dev, "rtc_write: addr=0x%x, values=0x%x, len=%u, "
+                "update_buffer=%d\n",
+                addr, *((u8 *)values), len, update_buffer);
+        ret = max77663_write(parent, addr, values, len, 1);
+        if (ret < 0)
+                goto out;
+
+        if (update_buffer)
+                ret = max77663_rtc_update_buffer(rtc, 1);
+
+out:
+        mutex_unlock(&rtc->io_lock);
+        return ret;
+}
+
+static inline int max77663_rtc_read(struct max77663_rtc *rtc, u8 addr,
+                                    void *values, u32 len, int update_buffer)
+{
+        struct device *parent = _to_parent(rtc);
+        int ret;
+
+        mutex_lock(&rtc->io_lock);
+
+        if (update_buffer) {
+                ret = max77663_rtc_update_buffer(rtc, 0);
+                if (ret < 0)
+                        goto out;
+        }
+
+        ret = max77663_read(parent, addr, values, len, 1);
+        dev_dbg(rtc->dev, "rtc_read: addr=0x%x, values=0x%x, len=%u, "
+                "update_buffer=%d\n",
+                addr, *((u8 *)values), len, update_buffer);
+
+out:
+        mutex_unlock(&rtc->io_lock);
+        return ret;
+}
+
+static inline int max77663_rtc_reg_to_tm(struct max77663_rtc *rtc, u8 *buf,
+                                         struct rtc_time *tm)
+{
+        int wday = buf[RTC_WEEKDAY] & WEEKDAY_MASK;
+
+        if (unlikely(!wday)) {
+                dev_err(rtc->dev,
+                        "rtc_reg_to_tm: Invalid day of week, %d\n", wday);
+                return -EINVAL;
+        }
+
+        tm->tm_sec = (int)(buf[RTC_SEC] & SEC_MASK);
+        tm->tm_min = (int)(buf[RTC_MIN] & MIN_MASK);
+        tm->tm_hour = (int)(buf[RTC_HOUR] & HOUR_MASK);
+        tm->tm_mday = (int)(buf[RTC_MONTHDAY] & MONTHDAY_MASK);
+        tm->tm_mon = (int)(buf[RTC_MONTH] & MONTH_MASK) - 1;
+        tm->tm_year = (int)(buf[RTC_YEAR] & YEAR_MASK) + RTC_YEAR_BASE;
+        tm->tm_wday = ffs(wday) - 1;
+
+        return 0;
+}
+
+static inline int max77663_rtc_tm_to_reg(struct max77663_rtc *rtc, u8 *buf,
+                                         struct rtc_time *tm, int alarm)
+{
+        u8 alarm_mask = alarm ? ALARM_EN_MASK : 0;
+
+        if (unlikely((tm->tm_year < RTC_YEAR_BASE) ||
+                        (tm->tm_year > RTC_YEAR_BASE + RTC_YEAR_MAX))) {
+                dev_err(rtc->dev,
+                        "rtc_tm_to_reg: Invalid year, %d\n", tm->tm_year);
+                return -EINVAL;
+        }
+
+        buf[RTC_SEC] = tm->tm_sec | alarm_mask;
+        buf[RTC_MIN] = tm->tm_min | alarm_mask;
+        buf[RTC_HOUR] = tm->tm_hour | alarm_mask;
+        buf[RTC_MONTHDAY] = tm->tm_mday | alarm_mask;
+        buf[RTC_MONTH] = (tm->tm_mon + 1) | alarm_mask;
+        buf[RTC_YEAR] = (tm->tm_year - RTC_YEAR_BASE) | alarm_mask;
+
+        /* The wday is configured only when disabled alarm. */
+        if (!alarm)
+                buf[RTC_WEEKDAY] = (1 << tm->tm_wday);
+        else
+                buf[RTC_WEEKDAY] = 0;
+
+        return 0;
+}
+
+static inline int max77663_rtc_irq_mask(struct max77663_rtc *rtc, u8 irq)
+{
+        struct device *parent = _to_parent(rtc);
+        u8 irq_mask = rtc->irq_mask | irq;
+        int ret = 0;
+
+        ret = max77663_write(parent, MAX77663_RTC_IRQ_MASK, &irq_mask, 1, 1);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_irq_mask: Failed to set rtc irq mask\n");
+                goto out;
+        }
+        rtc->irq_mask = irq_mask;
+
+out:
+        return ret;
+}
+
+static inline int max77663_rtc_irq_unmask(struct max77663_rtc *rtc, u8 irq)
+{
+        struct device *parent = _to_parent(rtc);
+        u8 irq_mask = rtc->irq_mask & ~irq;
+        int ret = 0;
+
+        ret = max77663_write(parent, MAX77663_RTC_IRQ_MASK, &irq_mask, 1, 1);
+        if (ret < 0) {
+                dev_err(rtc->dev,
+                        "rtc_irq_unmask: Failed to set rtc irq mask\n");
+                goto out;
+        }
+        rtc->irq_mask = irq_mask;
+
+out:
+        return ret;
+}
+
+static inline int max77663_rtc_do_irq(struct max77663_rtc *rtc)
+{
+        struct device *parent = _to_parent(rtc);
+        u8 irq_status;
+        int ret;
+
+        ret = max77663_rtc_update_buffer(rtc, 0);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_irq: Failed to get rtc update buffer\n");
+                return ret;
+        }
+
+        ret = max77663_read(parent, MAX77663_RTC_IRQ, &irq_status, 1, 1);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_irq: Failed to get rtc irq status\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_do_irq: irq_mask=0x%02x, irq_status=0x%02x\n",
+                rtc->irq_mask, irq_status);
+
+        if (!(rtc->irq_mask & RTC_IRQ_ALARM1_MASK) &&
+                        (irq_status & RTC_IRQ_ALARM1_MASK))
+                rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);
+
+        if (!(rtc->irq_mask & RTC_IRQ_1SEC_MASK) &&
+                        (irq_status & RTC_IRQ_1SEC_MASK))
+                rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_UF);
+
+        return ret;
+}
+
+static irqreturn_t max77663_rtc_irq(int irq, void *data)
+{
+        struct max77663_rtc *rtc = (struct max77663_rtc *)data;
+
+        max77663_rtc_do_irq(rtc);
+
+        return IRQ_HANDLED;
+}
+
+static int max77663_rtc_alarm_irq_enable(struct device *dev,
+                                         unsigned int enabled)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(dev);
+        int ret = 0;
+
+        if (rtc->irq < 0)
+                return -ENXIO;
+
+        mutex_lock(&rtc->io_lock);
+
+        /* Handle pending interrupt */
+        ret = max77663_rtc_do_irq(rtc);
+        if (ret < 0)
+                goto out;
+
+        /* Config alarm interrupt */
+        if (enabled) {
+                ret = max77663_rtc_irq_unmask(rtc, RTC_IRQ_ALARM1_MASK);
+                if (ret < 0)
+                        goto out;
+        } else {
+                ret = max77663_rtc_irq_mask(rtc, RTC_IRQ_ALARM1_MASK);
+                if (ret < 0)
+                        goto out;
+        }
+out:
+        mutex_unlock(&rtc->io_lock);
+        return ret;
+}
+
+static int max77663_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(dev);
+        u8 buf[RTC_NR];
+        int ret;
+
+        ret = max77663_rtc_read(rtc, MAX77663_RTC_SEC, buf, sizeof(buf), 1);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_read_time: Failed to read rtc time\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_read_time: "
+                "buf: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
+                buf[RTC_SEC], buf[RTC_MIN], buf[RTC_HOUR], buf[RTC_WEEKDAY],
+                buf[RTC_MONTH], buf[RTC_YEAR], buf[RTC_MONTHDAY]);
+
+        ret = max77663_rtc_reg_to_tm(rtc, buf, tm);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_read_time: "
+                        "Failed to convert register format into time format\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_read_time: "
+                "tm: %d-%02d-%02d %02d:%02d:%02d, wday=%d\n",
+                tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min,
+                tm->tm_sec, tm->tm_wday);
+
+        return ret;
+}
+
+static int max77663_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(dev);
+        u8 buf[RTC_NR];
+        int ret;
+
+        dev_dbg(rtc->dev, "rtc_set_time: "
+                "tm: %d-%02d-%02d %02d:%02d:%02d, wday=%d\n",
+                tm->tm_year, tm->tm_mon, tm->tm_mday, tm->tm_hour, tm->tm_min,
+                tm->tm_sec, tm->tm_wday);
+
+        ret = max77663_rtc_tm_to_reg(rtc, buf, tm, 0);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_set_time: "
+                        "Failed to convert time format into register format\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_set_time: "
+                "buf: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
+                buf[RTC_SEC], buf[RTC_MIN], buf[RTC_HOUR], buf[RTC_WEEKDAY],
+                buf[RTC_MONTH], buf[RTC_YEAR], buf[RTC_MONTHDAY]);
+
+        return max77663_rtc_write(rtc, MAX77663_RTC_SEC, buf, sizeof(buf), 1);
+}
+
+static int max77663_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(dev);
+        u8 buf[RTC_NR];
+        int ret;
+
+        ret = max77663_rtc_read(rtc, MAX77663_RTC_ALARM_SEC1, buf, sizeof(buf),
+                                1);
+        if (ret < 0) {
+                dev_err(rtc->dev,
+                        "rtc_read_alarm: Failed to read rtc alarm time\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_read_alarm: "
+                "buf: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
+                buf[RTC_SEC], buf[RTC_MIN], buf[RTC_HOUR], buf[RTC_WEEKDAY],
+                buf[RTC_MONTH], buf[RTC_YEAR], buf[RTC_MONTHDAY]);
+
+        ret = max77663_rtc_reg_to_tm(rtc, buf, &alrm->time);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_read_alarm: "
+                        "Failed to convert register format into time format\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_read_alarm: "
+                "tm: %d-%02d-%02d %02d:%02d:%02d, wday=%d\n",
+                alrm->time.tm_year, alrm->time.tm_mon, alrm->time.tm_mday,
+                alrm->time.tm_hour, alrm->time.tm_min, alrm->time.tm_sec,
+                alrm->time.tm_wday);
+
+        if (rtc->irq_mask & RTC_IRQ_ALARM1_MASK)
+                alrm->enabled = 1;
+        else
+                alrm->enabled = 0;
+
+        return 0;
+}
+
+static int max77663_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(dev);
+        u8 buf[RTC_NR];
+        int ret;
+
+        dev_dbg(rtc->dev, "rtc_set_alarm: "
+                "tm: %d-%02d-%02d %02d:%02d:%02d, wday=%d [%s]\n",
+                alrm->time.tm_year, alrm->time.tm_mon, alrm->time.tm_mday,
+                alrm->time.tm_hour, alrm->time.tm_min, alrm->time.tm_sec,
+                alrm->time.tm_wday, alrm->enabled?"enable":"disable");
+
+        ret = max77663_rtc_tm_to_reg(rtc, buf, &alrm->time, 1);
+        if (ret < 0) {
+                dev_err(rtc->dev, "rtc_set_alarm: "
+                        "Failed to convert time format into register format\n");
+                return ret;
+        }
+
+        dev_dbg(rtc->dev, "rtc_set_alarm: "
+                "buf: 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
+                buf[RTC_SEC], buf[RTC_MIN], buf[RTC_HOUR], buf[RTC_WEEKDAY],
+                buf[RTC_MONTH], buf[RTC_YEAR], buf[RTC_MONTHDAY]);
+
+        ret = max77663_rtc_write(rtc, MAX77663_RTC_ALARM_SEC1, buf, sizeof(buf),
+                                 1);
+        if (ret < 0) {
+                dev_err(rtc->dev,
+                        "rtc_set_alarm: Failed to write rtc alarm time\n");
+                return ret;
+        }
+
+        ret = max77663_rtc_alarm_irq_enable(dev, alrm->enabled);
+        if (ret < 0) {
+                dev_err(rtc->dev,
+                        "rtc_set_alarm: Failed to enable rtc alarm\n");
+                return ret;
+        }
+
+        return ret;
+}
+
+static const struct rtc_class_ops max77663_rtc_ops = {
+        .read_time = max77663_rtc_read_time,
+        .set_time = max77663_rtc_set_time,
+        .read_alarm = max77663_rtc_read_alarm,
+        .set_alarm = max77663_rtc_set_alarm,
+        .alarm_irq_enable = max77663_rtc_alarm_irq_enable,
+};
+
+static int max77663_rtc_preinit(struct max77663_rtc *rtc)
+{
+        struct device *parent = _to_parent(rtc);
+        u8 val;
+        int ret;
+
+        /* Mask all interrupts */
+        rtc->irq_mask = 0xFF;
+        ret = max77663_rtc_write(rtc, MAX77663_RTC_IRQ_MASK, &rtc->irq_mask, 1,
+                                 0);
+        if (ret < 0) {
+                dev_err(rtc->dev, "preinit: Failed to set rtc irq mask\n");
+                return ret;
+        }
+
+        /* Configure Binary mode and 24hour mode */
+        val = HR_MODE_MASK;
+        ret = max77663_rtc_write(rtc, MAX77663_RTC_CTRL, &val, 1, 0);
+        if (ret < 0) {
+                dev_err(rtc->dev, "preinit: Failed to set rtc control\n");
+                return ret;
+        }
+
+        /* It should be disabled alarm wakeup to wakeup from sleep
+         * by EN1 input signal */
+        ret = max77663_set_bits(parent, MAX77663_REG_ONOFF_CFG2,
+                                ONOFF_WK_ALARM1_MASK, 0, 0);
+        if (ret < 0) {
+                dev_err(rtc->dev, "preinit: Failed to set onoff cfg2\n");
+                return ret;
+        }
+
+        return 0;
+}
+
+static int max77663_rtc_probe(struct platform_device *pdev)
+{
+        struct max77663_platform_data *parent_pdata =
+                                                pdev->dev.parent->platform_data;
+        static struct max77663_rtc *rtc;
+        int ret = 0;
+
+        rtc = kzalloc(sizeof(struct max77663_rtc), GFP_KERNEL);
+        if (!rtc) {
+                dev_err(&pdev->dev, "probe: kzalloc() failed\n");
+                return -ENOMEM;
+        }
+
+        dev_set_drvdata(&pdev->dev, rtc);
+        rtc->dev = &pdev->dev;
+        mutex_init(&rtc->io_lock);
+
+        ret = max77663_rtc_preinit(rtc);
+        if (ret) {
+                dev_err(&pdev->dev, "probe: Failed to rtc preinit\n");
+                goto out_kfree;
+        }
+
+        rtc->rtc = rtc_device_register("max77663-rtc", &pdev->dev,
+                                       &max77663_rtc_ops, THIS_MODULE);
+        if (IS_ERR_OR_NULL(rtc->rtc)) {
+                dev_err(&pdev->dev, "probe: Failed to register rtc\n");
+                ret = PTR_ERR(rtc->rtc);
+                goto out_kfree;
+        }
+
+        if (parent_pdata->irq_base < 0)
+                goto out;
+
+        rtc->irq = parent_pdata->irq_base + MAX77663_IRQ_RTC;
+        ret = request_threaded_irq(rtc->irq, NULL, max77663_rtc_irq,
+                                   IRQF_ONESHOT, "max77663-rtc", rtc);
+        if (ret < 0) {
+                dev_err(rtc->dev, "probe: Failed to request irq %d\n",
+                        rtc->irq);
+                rtc->irq = -1;
+        } else {
+                device_init_wakeup(rtc->dev, 1);
+                enable_irq_wake(rtc->irq);
+        }
+
+        return 0;
+
+out_kfree:
+        mutex_destroy(&rtc->io_lock);
+        kfree(rtc->rtc);
+out:
+        return ret;
+}
+
+static int __devexit max77663_rtc_remove(struct platform_device *pdev)
+{
+        struct max77663_rtc *rtc = dev_get_drvdata(&pdev->dev);
+
+        if (rtc->irq != -1)
+                free_irq(rtc->irq, rtc);
+
+        rtc_device_unregister(rtc->rtc);
+        mutex_destroy(&rtc->io_lock);
+        kfree(rtc);
+
+        return 0;
+}
+
+static struct platform_driver max77663_rtc_driver = {
+        .probe = max77663_rtc_probe,
+        .remove = __devexit_p(max77663_rtc_remove),
+        .driver = {
+                   .name = "max77663-rtc",
+                   .owner = THIS_MODULE,
+        },
+};
+
+static int __init max77663_rtc_init(void)
+{
+        return platform_driver_register(&max77663_rtc_driver);
+}
+module_init(max77663_rtc_init);
+
+static void __exit max77663_rtc_exit(void)
+{
+        platform_driver_unregister(&max77663_rtc_driver);
+}
+module_exit(max77663_rtc_exit);
+
+MODULE_DESCRIPTION("max77663 RTC driver");
+MODULE_LICENSE("GPL v2");
+MODULE_VERSION("1.0");