rtc-proc: permit the /proc/driver/rtc device to use other devices
To get time information via /proc/driver/rtc, only the first device (rtc0)
is used. If the rtcN (eg. rtc1 or rtc2) is used for the system clock,
there is no way to get information of rtcN via /proc/driver/rtc. With
this patch, the time data can be retrieved from the system clock RTC.
If the RTC_HCTOSYS_DEVICE is not defined, then rtc0 is used by default.
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index fabc99a..a4a805c 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -69,13 +69,15 @@
If unsure, say Y.
config RTC_INTF_PROC
- boolean "/proc/driver/rtc (procfs for rtc0)"
+ boolean "/proc/driver/rtc (procfs for rtcN)"
depends on PROC_FS
default RTC_CLASS
help
- Say yes here if you want to use your first RTC through the proc
- interface, /proc/driver/rtc. Other RTCs will not be available
- through that API.
+ Say yes here if you want to use your system clock RTC through
+ the proc interface, /proc/driver/rtc.
+ Other RTCs will not be available through that API.
+ If there is no RTC for the system clock, then the first RTC(rtc0)
+ is used by default.
If unsure, say Y.