Convert OMAPs 32kHz clocksource implementation to use the generic MMIO

clocksource support.  This achieves several things:

1. It means we get rid of all these helper functions which frankly should
   never have been necessary.
2. It means omap_readl() inside these helper functions does not appear in
   ftrace output.

Another plus is that we avoid the overhead of calculating the address to
read each time, but a minus is that we use readl() which has a barrier.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[tony@atomide.com: updated to use ioremap]
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9adc278a22ab..c1795c952bfe 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -852,6 +852,7 @@ config ARCH_OMAP
         select HAVE_CLK
         select ARCH_REQUIRE_GPIOLIB
         select ARCH_HAS_CPUFREQ
+        select CLKSRC_MMIO
         select GENERIC_CLOCKEVENTS
         select HAVE_SCHED_CLOCK
         select ARCH_HAS_HOLES_MEMORYMODEL