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[SPARC64]: Stop using drivers/char/rtc.c

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The existing sparc64 mini_rtc driver can handle CMOS based
rtcs trivially with just a few lines of code and the simplifies
things tremendously.

Tested on SB1500.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2007-07-19 13:59:58 -07:00
parent 0fe85d504b
commit cdee99d746
3 changed files with 86 additions and 25 deletions
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30
drivers/char/rtc.c
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@@ -86,12 +86,9 @@
#include <asm/hpet.h>
#endif
#ifdef __sparc__
#ifdef CONFIG_SPARC32
#include <linux/pci.h>
#include <asm/ebus.h>
#ifdef __sparc_v9__
#include <asm/isa.h>
#endif
static unsigned long rtc_port;
static int rtc_irq = PCI_IRQ_NONE;
@@ -930,13 +927,9 @@ static int __init rtc_init(void)
unsigned int year, ctrl;
char *guess = NULL;
#endif
#ifdef __sparc__
#ifdef CONFIG_SPARC32
struct linux_ebus *ebus;
struct linux_ebus_device *edev;
#ifdef __sparc_v9__
struct sparc_isa_bridge *isa_br;
struct sparc_isa_device *isa_dev;
#endif
#else
void *r;
#ifdef RTC_IRQ
@@ -944,7 +937,7 @@ static int __init rtc_init(void)
#endif
#endif
#ifdef __sparc__
#ifdef CONFIG_SPARC32
for_each_ebus(ebus) {
for_each_ebusdev(edev, ebus) {
if(strcmp(edev->prom_node->name, "rtc") == 0) {
@@ -954,17 +947,6 @@ static int __init rtc_init(void)
}
}
}
#ifdef __sparc_v9__
for_each_isa(isa_br) {
for_each_isadev(isa_dev, isa_br) {
if (strcmp(isa_dev->prom_node->name, "rtc") == 0) {
rtc_port = isa_dev->resource.start;
rtc_irq = isa_dev->irq;
goto found;
}
}
}
#endif
rtc_has_irq = 0;
printk(KERN_ERR "rtc_init: no PC rtc found\n");
return -EIO;
@@ -1020,7 +1002,7 @@ no_irq:
#endif
#endif /* __sparc__ vs. others */
#endif /* CONFIG_SPARC32 vs. others */
if (misc_register(&rtc_dev)) {
#ifdef RTC_IRQ
@@ -1105,7 +1087,7 @@ static void __exit rtc_exit (void)
remove_proc_entry ("driver/rtc", NULL);
misc_deregister(&rtc_dev);
#ifdef __sparc__
#ifdef CONFIG_SPARC32
if (rtc_has_irq)
free_irq (rtc_irq, &rtc_port);
#else
@@ -1117,7 +1099,7 @@ static void __exit rtc_exit (void)
if (rtc_has_irq)
free_irq (RTC_IRQ, NULL);
#endif
#endif /* __sparc__ */
#endif /* CONFIG_SPARC32 */
}
module_init(rtc_init);