macintosh: Use common code to access RTC
Now that the 68k Mac port has adopted the via-pmu driver, the same RTC
code can be shared between m68k and powerpc. Replace duplicated code in
arch/powerpc and arch/m68k with common RTC accessors for Cuda and PMU.
Drop the problematic WARN_ON which was introduced in commit 22db552b50fa
("powerpc/powermac: Fix rtc read/write functions").
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
diff --git a/include/linux/cuda.h b/include/linux/cuda.h
index 056867f..45bfe9d 100644
--- a/include/linux/cuda.h
+++ b/include/linux/cuda.h
@@ -8,6 +8,7 @@
#ifndef _LINUX_CUDA_H
#define _LINUX_CUDA_H
+#include <linux/rtc.h>
#include <uapi/linux/cuda.h>
@@ -16,4 +17,7 @@ extern int cuda_request(struct adb_request *req,
void (*done)(struct adb_request *), int nbytes, ...);
extern void cuda_poll(void);
+extern time64_t cuda_get_time(void);
+extern int cuda_set_rtc_time(struct rtc_time *tm);
+
#endif /* _LINUX_CUDA_H */
diff --git a/include/linux/pmu.h b/include/linux/pmu.h
index 9ac8fc6..52453a24 100644
--- a/include/linux/pmu.h
+++ b/include/linux/pmu.h
@@ -9,6 +9,7 @@
#ifndef _LINUX_PMU_H
#define _LINUX_PMU_H
+#include <linux/rtc.h>
#include <uapi/linux/pmu.h>
@@ -36,6 +37,9 @@ static inline void pmu_resume(void)
extern void pmu_enable_irled(int on);
+extern time64_t pmu_get_time(void);
+extern int pmu_set_rtc_time(struct rtc_time *tm);
+
extern void pmu_restart(void);
extern void pmu_shutdown(void);
extern void pmu_unlock(void);