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rtc: Allow RTC_DRV_CMOS to be used on SPARC.

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Add Sparc to the Kconfig depends list.

Add __sparc___ to address_sparc = 128 ifdef.

Finally, don't be concerned about 24-hour BCD mode support if the RTC
doesn't have a valid IRQ.  We won't even use the alarm code in this
case and the Sparc RTCs have this limitation.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-28 19:54:17 -07:00
parent 0c0db98b50
commit 582defd8dd
2 changed files with 4 additions and 3 deletions
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2
drivers/rtc/Kconfig
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@ -329,7 +329,7 @@ comment "Platform RTC drivers"
config RTC_DRV_CMOS
tristate "PC-style 'CMOS'"
depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS
depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC
default y if X86
help
Say "yes" here to get direct support for the real time clock

5
drivers/rtc/rtc-cmos.c
View file

@ -636,7 +636,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
*/
#if defined(CONFIG_ATARI)
address_space = 64;
#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__)
#elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__sparc__)
address_space = 128;
#else
#warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.
@ -699,7 +699,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
/* FIXME teach the alarm code how to handle binary mode;
* <asm-generic/rtc.h> doesn't know 12-hour mode either.
*/
if (!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY))) {
if (is_valid_irq(rtc_irq) &&
(!(rtc_control & RTC_24H) || (rtc_control & (RTC_DM_BINARY)))) {
dev_dbg(dev, "only 24-hr BCD mode supported\n");
retval = -ENXIO;
goto cleanup1;