linux-mips
[Top] [All Lists]

[PATCH] CHAR: Delete old and now unused DS1286 driver.

To: ralf@linux-mips.org, linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Subject: [PATCH] CHAR: Delete old and now unused DS1286 driver.
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 27 Oct 2008 13:19:11 +0000
In-reply-to: <90edad820810270453s57954112m627859eac685f404@mail.gmail.com>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <90edad820810270453s57954112m627859eac685f404@mail.gmail.com>
Sender: linux-mips-bounce@linux-mips.org
It was only used by two SGI platforms which recently were converted to
RTC_LIB and with RTC_LIB enabled the legacy drivers are no more selectable.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                |    5 -
 arch/mips/configs/ip22_defconfig |    1 -
 arch/mips/configs/ip28_defconfig |    2 -
 drivers/char/Kconfig             |   11 -
 drivers/char/Makefile            |    1 -
 drivers/char/ds1286.c            |  585 --------------------------------------
 6 files changed, 0 insertions(+), 605 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 653574b..f4af967 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -327,7 +327,6 @@ config SGI_IP22
        select IP22_CPU_SCACHE
        select IRQ_CPU
        select GENERIC_ISA_DMA_SUPPORT_BROKEN
-       select SGI_HAS_DS1286
        select SGI_HAS_I8042
        select SGI_HAS_INDYDOG
        select SGI_HAS_HAL2
@@ -382,7 +381,6 @@ config SGI_IP28
        select HW_HAS_EISA
        select I8253
        select I8259
-       select SGI_HAS_DS1286
        select SGI_HAS_I8042
        select SGI_HAS_INDYDOG
        select SGI_HAS_HAL2
@@ -893,9 +891,6 @@ config EMMA2RH
 config SERIAL_RM9000
        bool
 
-config SGI_HAS_DS1286
-       bool
-
 config SGI_HAS_INDYDOG
        bool
 
diff --git a/arch/mips/configs/ip22_defconfig b/arch/mips/configs/ip22_defconfig
index cc8e6bf..f719bf5 100644
--- a/arch/mips/configs/ip22_defconfig
+++ b/arch/mips/configs/ip22_defconfig
@@ -771,7 +771,6 @@ CONFIG_WATCHDOG=y
 CONFIG_INDYDOG=m
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
-CONFIG_SGI_DS1286=m
 # CONFIG_R3964 is not set
 CONFIG_RAW_DRIVER=m
 CONFIG_MAX_RAW_DEVS=256
diff --git a/arch/mips/configs/ip28_defconfig b/arch/mips/configs/ip28_defconfig
index 822b01f..70a744e 100644
--- a/arch/mips/configs/ip28_defconfig
+++ b/arch/mips/configs/ip28_defconfig
@@ -70,7 +70,6 @@ CONFIG_CPU_BIG_ENDIAN=y
 CONFIG_SYS_SUPPORTS_BIG_ENDIAN=y
 CONFIG_IRQ_CPU=y
 CONFIG_SWAP_IO_SPACE=y
-CONFIG_SGI_HAS_DS1286=y
 CONFIG_SGI_HAS_INDYDOG=y
 CONFIG_SGI_HAS_SEEQ=y
 CONFIG_SGI_HAS_WD93=y
@@ -585,7 +584,6 @@ CONFIG_LEGACY_PTY_COUNT=256
 # CONFIG_IPMI_HANDLER is not set
 # CONFIG_HW_RANDOM is not set
 # CONFIG_RTC is not set
-CONFIG_SGI_DS1286=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_RAW_DRIVER is not set
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1222541..9d2c436 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -812,17 +812,6 @@ config JS_RTC
          To compile this driver as a module, choose M here: the
          module will be called js-rtc.
 
-config SGI_DS1286
-       tristate "SGI DS1286 RTC support"
-       depends on SGI_HAS_DS1286
-       help
-         If you say Y here and create a character special file /dev/rtc with
-         major number 10 and minor number 135 using mknod ("man mknod"), you
-         will get access to the real time clock built into your computer.
-         Every SGI has such a clock built in. It reports status information
-         via the file /proc/rtc and its behaviour is set by various ioctls on
-         /dev/rtc.
-
 config SGI_IP27_RTC
        bool "SGI M48T35 RTC support"
        depends on SGI_IP27
diff --git a/drivers/char/Makefile b/drivers/char/Makefile
index 1a4247d..917f0f4 100644
--- a/drivers/char/Makefile
+++ b/drivers/char/Makefile
@@ -74,7 +74,6 @@ obj-$(CONFIG_RTC)             += rtc.o
 obj-$(CONFIG_HPET)             += hpet.o
 obj-$(CONFIG_GEN_RTC)          += genrtc.o
 obj-$(CONFIG_EFI_RTC)          += efirtc.o
-obj-$(CONFIG_SGI_DS1286)       += ds1286.o
 obj-$(CONFIG_SGI_IP27_RTC)     += ip27-rtc.o
 obj-$(CONFIG_DS1302)           += ds1302.o
 obj-$(CONFIG_XILINX_HWICAP)    += xilinx_hwicap/
diff --git a/drivers/char/ds1286.c b/drivers/char/ds1286.c
deleted file mode 100644
index 0a826d7..0000000
--- a/drivers/char/ds1286.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- * DS1286 Real Time Clock interface for Linux
- *
- * Copyright (C) 1998, 1999, 2000 Ralf Baechle
- *
- * Based on code written by Paul Gortmaker.
- *
- * This driver allows use of the real time clock (built into nearly all
- * computers) from user space. It exports the /dev/rtc interface supporting
- * various ioctl() and also the /proc/rtc pseudo-file for status
- * information.
- *
- * The ioctls can be used to set the interrupt behaviour and generation rate
- * from the RTC via IRQ 8. Then the /dev/rtc interface can be used to make
- * use of these timer interrupts, be they interval or alarm based.
- *
- * The /dev/rtc interface will block on reads until an interrupt has been
- * received. If a RTC interrupt has already happened, it will output an
- * unsigned long and then block. The output value contains the interrupt
- * status in the low byte and the number of interrupts since the last read
- * in the remaining high bytes. The /dev/rtc interface can also be used with
- * the select(2) call.
- *
- * 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/ds1286.h>
-#include <linux/smp_lock.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/miscdevice.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/fcntl.h>
-#include <linux/init.h>
-#include <linux/poll.h>
-#include <linux/rtc.h>
-#include <linux/spinlock.h>
-#include <linux/bcd.h>
-#include <linux/proc_fs.h>
-#include <linux/jiffies.h>
-
-#include <asm/uaccess.h>
-#include <asm/system.h>
-
-#define DS1286_VERSION         "1.0"
-
-/*
- *     We sponge a minor off of the misc major. No need slurping
- *     up another valuable major dev number for this. If you add
- *     an ioctl, make sure you don't conflict with SPARC's RTC
- *     ioctls.
- */
-
-static DECLARE_WAIT_QUEUE_HEAD(ds1286_wait);
-
-static ssize_t ds1286_read(struct file *file, char *buf,
-                       size_t count, loff_t *ppos);
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
-                        unsigned int cmd, unsigned long arg);
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait);
-
-static void ds1286_get_alm_time (struct rtc_time *alm_tm);
-static void ds1286_get_time(struct rtc_time *rtc_tm);
-static int ds1286_set_time(struct rtc_time *rtc_tm);
-
-static inline unsigned char ds1286_is_updating(void);
-
-static DEFINE_SPINLOCK(ds1286_lock);
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
-                            int count, int *eof, void *data);
-
-/*
- *     Bits in rtc_status. (7 bits of room for future expansion)
- */
-
-#define RTC_IS_OPEN            0x01    /* means /dev/rtc is in use     */
-#define RTC_TIMER_ON           0x02    /* missed irq timer active      */
-
-static unsigned char ds1286_status;    /* bitmapped status byte.       */
-
-static unsigned char days_in_mo[] = {
-       0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31
-};
-
-/*
- *     Now all the various file operations that we export.
- */
-
-static ssize_t ds1286_read(struct file *file, char *buf,
-                           size_t count, loff_t *ppos)
-{
-       return -EIO;
-}
-
-static int ds1286_ioctl(struct inode *inode, struct file *file,
-                        unsigned int cmd, unsigned long arg)
-{
-       struct rtc_time wtime;
-
-       switch (cmd) {
-       case RTC_AIE_OFF:       /* Mask alarm int. enab. bit    */
-       {
-               unsigned long flags;
-               unsigned char val;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               spin_lock_irqsave(&ds1286_lock, flags);
-               val = rtc_read(RTC_CMD);
-               val |=  RTC_TDM;
-               rtc_write(val, RTC_CMD);
-               spin_unlock_irqrestore(&ds1286_lock, flags);
-
-               return 0;
-       }
-       case RTC_AIE_ON:        /* Allow alarm interrupts.      */
-       {
-               unsigned long flags;
-               unsigned char val;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               spin_lock_irqsave(&ds1286_lock, flags);
-               val = rtc_read(RTC_CMD);
-               val &=  ~RTC_TDM;
-               rtc_write(val, RTC_CMD);
-               spin_unlock_irqrestore(&ds1286_lock, flags);
-
-               return 0;
-       }
-       case RTC_WIE_OFF:       /* Mask watchdog int. enab. bit */
-       {
-               unsigned long flags;
-               unsigned char val;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               spin_lock_irqsave(&ds1286_lock, flags);
-               val = rtc_read(RTC_CMD);
-               val |= RTC_WAM;
-               rtc_write(val, RTC_CMD);
-               spin_unlock_irqrestore(&ds1286_lock, flags);
-
-               return 0;
-       }
-       case RTC_WIE_ON:        /* Allow watchdog interrupts.   */
-       {
-               unsigned long flags;
-               unsigned char val;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               spin_lock_irqsave(&ds1286_lock, flags);
-               val = rtc_read(RTC_CMD);
-               val &= ~RTC_WAM;
-               rtc_write(val, RTC_CMD);
-               spin_unlock_irqrestore(&ds1286_lock, flags);
-
-               return 0;
-       }
-       case RTC_ALM_READ:      /* Read the present alarm time */
-       {
-               /*
-                * This returns a struct rtc_time. Reading >= 0xc0
-                * means "don't care" or "match all". Only the tm_hour,
-                * tm_min, and tm_sec values are filled in.
-                */
-
-               memset(&wtime, 0, sizeof(wtime));
-               ds1286_get_alm_time(&wtime);
-               break;
-       }
-       case RTC_ALM_SET:       /* Store a time into the alarm */
-       {
-               /*
-                * This expects a struct rtc_time. Writing 0xff means
-                * "don't care" or "match all". Only the tm_hour,
-                * tm_min and tm_sec are used.
-                */
-               unsigned char hrs, min, sec;
-               struct rtc_time alm_tm;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               if (copy_from_user(&alm_tm, (struct rtc_time*)arg,
-                                  sizeof(struct rtc_time)))
-                       return -EFAULT;
-
-               hrs = alm_tm.tm_hour;
-               min = alm_tm.tm_min;
-               sec = alm_tm.tm_sec;
-
-               if (hrs >= 24)
-                       hrs = 0xff;
-
-               if (min >= 60)
-                       min = 0xff;
-
-               if (sec != 0)
-                       return -EINVAL;
-
-               min = bin2bcd(min);
-               min = bin2bcd(hrs);
-
-               spin_lock(&ds1286_lock);
-               rtc_write(hrs, RTC_HOURS_ALARM);
-               rtc_write(min, RTC_MINUTES_ALARM);
-               spin_unlock(&ds1286_lock);
-
-               return 0;
-       }
-       case RTC_RD_TIME:       /* Read the time/date from RTC  */
-       {
-               memset(&wtime, 0, sizeof(wtime));
-               ds1286_get_time(&wtime);
-               break;
-       }
-       case RTC_SET_TIME:      /* Set the RTC */
-       {
-               struct rtc_time rtc_tm;
-
-               if (!capable(CAP_SYS_TIME))
-                       return -EACCES;
-
-               if (copy_from_user(&rtc_tm, (struct rtc_time*)arg,
-                                  sizeof(struct rtc_time)))
-                       return -EFAULT;
-
-               return ds1286_set_time(&rtc_tm);
-       }
-       default:
-               return -EINVAL;
-       }
-       return copy_to_user((void *)arg, &wtime, sizeof wtime) ? -EFAULT : 0;
-}
-
-/*
- *     We enforce only one user at a time here with the open/close.
- *     Also clear the previous interrupt data on an open, and clean
- *     up things on a close.
- */
-
-static int ds1286_open(struct inode *inode, struct file *file)
-{
-       lock_kernel();
-       spin_lock_irq(&ds1286_lock);
-
-       if (ds1286_status & RTC_IS_OPEN)
-               goto out_busy;
-
-       ds1286_status |= RTC_IS_OPEN;
-
-       spin_unlock_irq(&ds1286_lock);
-       unlock_kernel();
-       return 0;
-
-out_busy:
-       spin_lock_irq(&ds1286_lock);
-       unlock_kernel();
-       return -EBUSY;
-}
-
-static int ds1286_release(struct inode *inode, struct file *file)
-{
-       ds1286_status &= ~RTC_IS_OPEN;
-
-       return 0;
-}
-
-static unsigned int ds1286_poll(struct file *file, poll_table *wait)
-{
-       poll_wait(file, &ds1286_wait, wait);
-
-       return 0;
-}
-
-/*
- *     The various file operations we support.
- */
-
-static const struct file_operations ds1286_fops = {
-       .llseek         = no_llseek,
-       .read           = ds1286_read,
-       .poll           = ds1286_poll,
-       .ioctl          = ds1286_ioctl,
-       .open           = ds1286_open,
-       .release        = ds1286_release,
-};
-
-static struct miscdevice ds1286_dev=
-{
-       .minor  = RTC_MINOR,
-       .name   = "rtc",
-       .fops   = &ds1286_fops,
-};
-
-static int __init ds1286_init(void)
-{
-       int err;
-
-       printk(KERN_INFO "DS1286 Real Time Clock Driver v%s\n", DS1286_VERSION);
-
-       err = misc_register(&ds1286_dev);
-       if (err)
-               goto out;
-
-       if (!create_proc_read_entry("driver/rtc", 0, 0, ds1286_read_proc, 
NULL)) {
-               err = -ENOMEM;
-
-               goto out_deregister;
-       }
-
-       return 0;
-
-out_deregister:
-       misc_deregister(&ds1286_dev);
-
-out:
-       return err;
-}
-
-static void __exit ds1286_exit(void)
-{
-       remove_proc_entry("driver/rtc", NULL);
-       misc_deregister(&ds1286_dev);
-}
-
-static char *days[] = {
-       "***", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
-
-/*
- *     Info exported via "/proc/rtc".
- */
-static int ds1286_proc_output(char *buf)
-{
-       char *p, *s;
-       struct rtc_time tm;
-       unsigned char hundredth, month, cmd, amode;
-
-       p = buf;
-
-       ds1286_get_time(&tm);
-       hundredth = rtc_read(RTC_HUNDREDTH_SECOND);
-       hundredth = bcd2bin(hundredth);
-
-       p += sprintf(p,
-                    "rtc_time\t: %02d:%02d:%02d.%02d\n"
-                    "rtc_date\t: %04d-%02d-%02d\n",
-                    tm.tm_hour, tm.tm_min, tm.tm_sec, hundredth,
-                    tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
-
-       /*
-        * We implicitly assume 24hr mode here. Alarm values >= 0xc0 will
-        * match any value for that particular field. Values that are
-        * greater than a valid time, but less than 0xc0 shouldn't appear.
-        */
-       ds1286_get_alm_time(&tm);
-       p += sprintf(p, "alarm\t\t: %s ", days[tm.tm_wday]);
-       if (tm.tm_hour <= 24)
-               p += sprintf(p, "%02d:", tm.tm_hour);
-       else
-               p += sprintf(p, "**:");
-
-       if (tm.tm_min <= 59)
-               p += sprintf(p, "%02d\n", tm.tm_min);
-       else
-               p += sprintf(p, "**\n");
-
-       month = rtc_read(RTC_MONTH);
-       p += sprintf(p,
-                    "oscillator\t: %s\n"
-                    "square_wave\t: %s\n",
-                    (month & RTC_EOSC) ? "disabled" : "enabled",
-                    (month & RTC_ESQW) ? "disabled" : "enabled");
-
-       amode = ((rtc_read(RTC_MINUTES_ALARM) & 0x80) >> 5) |
-               ((rtc_read(RTC_HOURS_ALARM) & 0x80) >> 6) |
-               ((rtc_read(RTC_DAY_ALARM) & 0x80) >> 7);
-       if (amode == 7)      s = "each minute";
-       else if (amode == 3) s = "minutes match";
-       else if (amode == 1) s = "hours and minutes match";
-       else if (amode == 0) s = "days, hours and minutes match";
-       else                 s = "invalid";
-       p += sprintf(p, "alarm_mode\t: %s\n", s);
-
-       cmd = rtc_read(RTC_CMD);
-       p += sprintf(p,
-                    "alarm_enable\t: %s\n"
-                    "wdog_alarm\t: %s\n"
-                    "alarm_mask\t: %s\n"
-                    "wdog_alarm_mask\t: %s\n"
-                    "interrupt_mode\t: %s\n"
-                    "INTB_mode\t: %s_active\n"
-                    "interrupt_pins\t: %s\n",
-                    (cmd & RTC_TDF) ? "yes" : "no",
-                    (cmd & RTC_WAF) ? "yes" : "no",
-                    (cmd & RTC_TDM) ? "disabled" : "enabled",
-                    (cmd & RTC_WAM) ? "disabled" : "enabled",
-                    (cmd & RTC_PU_LVL) ? "pulse" : "level",
-                    (cmd & RTC_IBH_LO) ? "low" : "high",
-                    (cmd & RTC_IPSW) ? "unswapped" : "swapped");
-
-       return  p - buf;
-}
-
-static int ds1286_read_proc(char *page, char **start, off_t off,
-                         int count, int *eof, void *data)
-{
-       int len = ds1286_proc_output (page);
-       if (len <= off+count) *eof = 1;
-       *start = page + off;
-       len -= off;
-       if (len>count)
-               len = count;
-       if (len<0)
-               len = 0;
-
-       return len;
-}
-
-/*
- * Returns true if a clock update is in progress
- */
-static inline unsigned char ds1286_is_updating(void)
-{
-       return rtc_read(RTC_CMD) & RTC_TE;
-}
-
-
-static void ds1286_get_time(struct rtc_time *rtc_tm)
-{
-       unsigned char save_control;
-       unsigned long flags;
-
-       /*
-        * read RTC once any update in progress is done. The update
-        * can take just over 2ms. We wait 10 to 20ms. There is no need to
-        * to poll-wait (up to 1s - eeccch) for the falling edge of RTC_UIP.
-        * If you need to know *exactly* when a second has started, enable
-        * periodic update complete interrupts, (via ioctl) and then
-        * immediately read /dev/rtc which will block until you get the IRQ.
-        * Once the read clears, read the RTC time (again via ioctl). Easy.
-        */
-
-       if (ds1286_is_updating() != 0)
-               msleep(20);
-
-       /*
-        * Only the values that we read from the RTC are set. We leave
-        * tm_wday, tm_yday and tm_isdst untouched. Even though the
-        * RTC has RTC_DAY_OF_WEEK, we ignore it, as it is only updated
-        * by the RTC when initially set to a non-zero value.
-        */
-       spin_lock_irqsave(&ds1286_lock, flags);
-       save_control = rtc_read(RTC_CMD);
-       rtc_write((save_control|RTC_TE), RTC_CMD);
-
-       rtc_tm->tm_sec = rtc_read(RTC_SECONDS);
-       rtc_tm->tm_min = rtc_read(RTC_MINUTES);
-       rtc_tm->tm_hour = rtc_read(RTC_HOURS) & 0x3f;
-       rtc_tm->tm_mday = rtc_read(RTC_DATE);
-       rtc_tm->tm_mon = rtc_read(RTC_MONTH) & 0x1f;
-       rtc_tm->tm_year = rtc_read(RTC_YEAR);
-
-       rtc_write(save_control, RTC_CMD);
-       spin_unlock_irqrestore(&ds1286_lock, flags);
-
-       rtc_tm->tm_sec = bcd2bin(rtc_tm->tm_sec);
-       rtc_tm->tm_min = bcd2bin(rtc_tm->tm_min);
-       rtc_tm->tm_hour = bcd2bin(rtc_tm->tm_hour);
-       rtc_tm->tm_mday = bcd2bin(rtc_tm->tm_mday);
-       rtc_tm->tm_mon = bcd2bin(rtc_tm->tm_mon);
-       rtc_tm->tm_year = bcd2bin(rtc_tm->tm_year);
-
-       /*
-        * Account for differences between how the RTC uses the values
-        * and how they are defined in a struct rtc_time;
-        */
-       if (rtc_tm->tm_year < 45)
-               rtc_tm->tm_year += 30;
-       if ((rtc_tm->tm_year += 40) < 70)
-               rtc_tm->tm_year += 100;
-
-       rtc_tm->tm_mon--;
-}
-
-static int ds1286_set_time(struct rtc_time *rtc_tm)
-{
-       unsigned char mon, day, hrs, min, sec, leap_yr;
-       unsigned char save_control;
-       unsigned int yrs;
-       unsigned long flags;
-
-
-       yrs = rtc_tm->tm_year + 1900;
-       mon = rtc_tm->tm_mon + 1;   /* tm_mon starts at zero */
-       day = rtc_tm->tm_mday;
-       hrs = rtc_tm->tm_hour;
-       min = rtc_tm->tm_min;
-       sec = rtc_tm->tm_sec;
-
-       if (yrs < 1970)
-               return -EINVAL;
-
-       leap_yr = ((!(yrs % 4) && (yrs % 100)) || !(yrs % 400));
-
-       if ((mon > 12) || (day == 0))
-               return -EINVAL;
-
-       if (day > (days_in_mo[mon] + ((mon == 2) && leap_yr)))
-               return -EINVAL;
-
-       if ((hrs >= 24) || (min >= 60) || (sec >= 60))
-               return -EINVAL;
-
-       if ((yrs -= 1940) > 255)    /* They are unsigned */
-               return -EINVAL;
-
-       if (yrs >= 100)
-               yrs -= 100;
-
-       sec = bin2bcd(sec);
-       min = bin2bcd(min);
-       hrs = bin2bcd(hrs);
-       day = bin2bcd(day);
-       mon = bin2bcd(mon);
-       yrs = bin2bcd(yrs);
-
-       spin_lock_irqsave(&ds1286_lock, flags);
-       save_control = rtc_read(RTC_CMD);
-       rtc_write((save_control|RTC_TE), RTC_CMD);
-
-       rtc_write(yrs, RTC_YEAR);
-       rtc_write(mon, RTC_MONTH);
-       rtc_write(day, RTC_DATE);
-       rtc_write(hrs, RTC_HOURS);
-       rtc_write(min, RTC_MINUTES);
-       rtc_write(sec, RTC_SECONDS);
-       rtc_write(0, RTC_HUNDREDTH_SECOND);
-
-       rtc_write(save_control, RTC_CMD);
-       spin_unlock_irqrestore(&ds1286_lock, flags);
-
-       return 0;
-}
-
-static void ds1286_get_alm_time(struct rtc_time *alm_tm)
-{
-       unsigned char cmd;
-       unsigned long flags;
-
-       /*
-        * Only the values that we read from the RTC are set. That
-        * means only tm_wday, tm_hour, tm_min.
-        */
-       spin_lock_irqsave(&ds1286_lock, flags);
-       alm_tm->tm_min = rtc_read(RTC_MINUTES_ALARM) & 0x7f;
-       alm_tm->tm_hour = rtc_read(RTC_HOURS_ALARM)  & 0x1f;
-       alm_tm->tm_wday = rtc_read(RTC_DAY_ALARM)    & 0x07;
-       cmd = rtc_read(RTC_CMD);
-       spin_unlock_irqrestore(&ds1286_lock, flags);
-
-       alm_tm->tm_min = bcd2bin(alm_tm->tm_min);
-       alm_tm->tm_hour = bcd2bin(alm_tm->tm_hour);
-       alm_tm->tm_sec = 0;
-}
-
-module_init(ds1286_init);
-module_exit(ds1286_exit);
-
-MODULE_AUTHOR("Ralf Baechle");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(RTC_MINOR);

<Prev in Thread] Current Thread [Next in Thread>