powerpc: always enable RTC_LIB

In order to use the rtc_tm_to_time64() and rtc_time64_to_tm()
helper functions in later patches, we have to ensure that
CONFIG_RTC_LIB is always built-in.

Note that this symbol only controls a couple of helper functions,
not the actual RTC subsystem, which remains optional and is
enabled with CONFIG_RTC_CLASS.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 23247fa..940c955 100644 (file)
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -234,6 +234,7 @@ config PPC
        select OF_RESERVED_MEM
        select OLD_SIGACTION                    if PPC32
        select OLD_SIGSUSPEND
+       select RTC_LIB
        select SPARSE_IRQ
        select SYSCTL_EXCEPTION_TRACE
        select VIRT_TO_BUS                      if !PPC64