[PATCH v3 06/16] char/genrtc: remove mn10300 support

Arnd Bergmann
2016-04-27T22:34:20Z

The genrtc driver serves no purpose on mn10300 because it drives the
same hardware as the original rtc.c driver, and the newer rtc-generic.c
or rtc-cmos.c drivers on architectures that use the asm-generic/rtc.h
header.

I assume it was initially only added for completeness when the
mn10300 port was done, but the older rtc.c driver was always used
instead.

We can also stop include asm-generic/rtc.h now, because we
just call mc146818_set_time() directly.

It would be nice to change the architecture to use the rtc-cmos driver
next, and remove support for the old rtc driver as well.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/mn10300/include/asm/rtc.h | 2 --
arch/mn10300/kernel/rtc.c | 2 +-
drivers/char/Kconfig | 2 +-
3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/mn10300/include/asm/rtc.h b/arch/mn10300/include/asm/rtc.h
index 6c14bb1d0d9b..07dc87656197 100644
--- a/arch/mn10300/include/asm/rtc.h
+++ b/arch/mn10300/include/asm/rtc.h
@@ -25,6 +25,4 @@ static inline void calibrate_clock(void)

#endif /* !CONFIG_MN10300_RTC */

-#include <asm-generic/rtc.h>
-
#endif /* _ASM_RTC_H */
diff --git a/arch/mn10300/kernel/rtc.c b/arch/mn10300/kernel/rtc.c
index 48d7058b3295..77e0be4d92ea 100644
--- a/arch/mn10300/kernel/rtc.c
+++ b/arch/mn10300/kernel/rtc.c
@@ -27,7 +27,7 @@ void read_persistent_clock(struct timespec *ts)
{
struct rtc_time tm;

- get_rtc_time(&tm);
+ mc146818_set_time(&tm);

ts->tv_nsec = 0;
ts->tv_sec = mktime(tm.tm_year, tm.tm_mon, tm.tm_mday,
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 697510325b1d..d17ed90ebc82 100644
--- 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 || MN10300 || PARISC || PPC
+ depends on M68K || PARISC || 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
--
2.7.0