ARM: OMAP2+: PRM/CM: Move the stubbed prm and cm functions to prcm.c file and make them __weak

Some prm and cm registers read/write and status functions
are built only for some custom OMAP2+ builds and are stubbed
in header files for other builds under ifdef statements.
But this results in adding new CONFIG_ARCH_OMAPXXX
checks when SOCs are added in the future. So move them
to a common place for OMAP2+ and make them 'weak' implementations.

This way no new ifdefs would be required in the future and also
cleans up the existing code.

Signed-off-by: R Sricharan <r.sricharan@ti.com>
[paul@pwsan.com: unsplit quoted strings; moved PRM functions to
 mach-omap2/prm_common.c; resolved sparse warnings]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/prcm.c b/arch/arm/mach-omap2/prcm.c
index 480f40a..28cbfb2 100644
--- a/arch/arm/mach-omap2/prcm.c
+++ b/arch/arm/mach-omap2/prcm.c
@@ -35,6 +35,7 @@
 #include "prm2xxx_3xxx.h"
 #include "prm44xx.h"
 #include "prminst44xx.h"
+#include "cminst44xx.h"
 #include "prm-regbits-24xx.h"
 #include "prm-regbits-44xx.h"
 #include "control.h"
@@ -164,3 +165,25 @@
 		omap_cm_base_init();
 	}
 }
+
+/*
+ * Stubbed functions so that common files continue to build when
+ * custom builds are used
+ * XXX These are temporary and should be removed at the earliest possible
+ * opportunity
+ */
+int __weak omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs,
+					u16 clkctrl_offs)
+{
+	return 0;
+}
+
+void __weak omap4_cminst_module_enable(u8 mode, u8 part, u16 inst,
+				s16 cdoffs, u16 clkctrl_offs)
+{
+}
+
+void __weak omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs,
+				 u16 clkctrl_offs)
+{
+}