ARM: OMAP2+: PM: share clkdms_setup() across OMAP2, 3, 4

clkdms_setup() is identical across OMAP2, 3, and 4, so share it.

Signed-off-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Tested-by: Kevin Hilman <khilman@ti.com>
Signed-off-by: Kevin Hilman <khilman@ti.com>
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index b737b11..eef67f6 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -22,6 +22,7 @@
 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
 extern int omap3_idle_init(void);
 extern int omap4_idle_init(void);
+extern int omap_pm_clkdms_setup(struct clockdomain *clkdm, void *unused);
 
 #if defined(CONFIG_PM_OPP)
 extern int omap3_opp_init(void);