char/genrtc: remove parisc support

This architecture selects RTC_CLASS unconditionally, so the GEN_RTC
has not worked here for a long time.

Now we can remove both the asm/rtc.h header and the Kconfig dependency
for CONFIG_GEN_RTC.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/arch/parisc/include/asm/rtc.h b/arch/parisc/include/asm/rtc.h
deleted file mode 100644 (file)
index 099d641..0000000
--- a/arch/parisc/include/asm/rtc.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/* 
- * include/asm-parisc/rtc.h
- *
- * Copyright 2002 Randolph CHung <tausq@debian.org>
- *
- * Based on: include/asm-ppc/rtc.h and the genrtc driver in the
- * 2.4 parisc linux tree
- */
-
-#ifndef __ASM_RTC_H__
-#define __ASM_RTC_H__
-
-#ifdef __KERNEL__
-
-#include <linux/rtc.h>
-
-#include <asm/pdc.h>
-
-#define SECS_PER_HOUR   (60 * 60)
-#define SECS_PER_DAY    (SECS_PER_HOUR * 24)
-
-
-#define RTC_PIE 0x40           /* periodic interrupt enable */
-#define RTC_AIE 0x20           /* alarm interrupt enable */
-#define RTC_UIE 0x10           /* update-finished interrupt enable */
-
-#define RTC_BATT_BAD 0x100     /* battery bad */
-
-/* some dummy definitions */
-#define RTC_SQWE 0x08          /* enable square-wave output */
-#define RTC_DM_BINARY 0x04     /* all time/date values are BCD if clear */
-#define RTC_24H 0x02           /* 24 hour mode - else hours bit 7 means pm */
-#define RTC_DST_EN 0x01                /* auto switch DST - works f. USA only */
-
-# define __isleap(year) \
-  ((year) % 4 == 0 && ((year) % 100 != 0 || (year) % 400 == 0))
-
-/* How many days come before each month (0-12).  */
-static const unsigned short int __mon_yday[2][13] =
-{
-       /* Normal years.  */
-       { 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365 },
-       /* Leap years.  */
-       { 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366 }
-};
-
-static inline unsigned int get_rtc_time(struct rtc_time *wtime)
-{
-       struct pdc_tod tod_data;
-       long int days, rem, y;
-       const unsigned short int *ip;
-
-       memset(wtime, 0, sizeof(*wtime));
-       if (pdc_tod_read(&tod_data) < 0)
-               return RTC_24H | RTC_BATT_BAD;
-
-       // most of the remainder of this function is:
-//     Copyright (C) 1991, 1993, 1997, 1998 Free Software Foundation, Inc.
-//     This was originally a part of the GNU C Library.
-//      It is distributed under the GPL, and was swiped from offtime.c
-
-
-       days = tod_data.tod_sec / SECS_PER_DAY;
-       rem = tod_data.tod_sec % SECS_PER_DAY;
-
-       wtime->tm_hour = rem / SECS_PER_HOUR;
-       rem %= SECS_PER_HOUR;
-       wtime->tm_min = rem / 60;
-       wtime->tm_sec = rem % 60;
-
-       y = 1970;
-
-#define DIV(a, b) ((a) / (b) - ((a) % (b) < 0))
-#define LEAPS_THRU_END_OF(y) (DIV (y, 4) - DIV (y, 100) + DIV (y, 400))
-
-       while (days < 0 || days >= (__isleap (y) ? 366 : 365))
-       {
-               /* Guess a corrected year, assuming 365 days per year.  */
-               long int yg = y + days / 365 - (days % 365 < 0);
-
-               /* Adjust DAYS and Y to match the guessed year.  */
-               days -= ((yg - y) * 365
-                        + LEAPS_THRU_END_OF (yg - 1)
-                        - LEAPS_THRU_END_OF (y - 1));
-               y = yg;
-       }
-       wtime->tm_year = y - 1900;
-
-       ip = __mon_yday[__isleap(y)];
-       for (y = 11; days < (long int) ip[y]; --y)
-               continue;
-       days -= ip[y];
-       wtime->tm_mon = y;
-       wtime->tm_mday = days + 1;
-
-       return RTC_24H;
-}
-
-static int set_rtc_time(struct rtc_time *wtime)
-{
-       u_int32_t secs;
-
-       secs = mktime(wtime->tm_year + 1900, wtime->tm_mon + 1, wtime->tm_mday, 
-                     wtime->tm_hour, wtime->tm_min, wtime->tm_sec);
-
-       if(pdc_tod_set(secs, 0) < 0)
-               return -1;
-       else
-               return 0;
-
-}
-
-static inline unsigned int get_rtc_ss(void)
-{
-       struct rtc_time h;
-
-       get_rtc_time(&h);
-       return h.tm_sec;
-}
-
-static inline int get_rtc_pll(struct rtc_pll_info *pll)
-{
-       return -EINVAL;
-}
-static inline int set_rtc_pll(struct rtc_pll_info *pll)
-{
-       return -EINVAL;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASM_RTC_H__ */

diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 1d9e306..074bc39 100644 (file)
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -328,7 +328,7 @@ config JS_RTC
 config GEN_RTC
        tristate "Generic /dev/rtc emulation"
        depends on RTC!=y
-       depends on M68K || PARISC || PPC
+       depends on M68K || PPC
        ---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