OMAP4: cm: Add two new APIs for modulemode control

In OMAP4, a new programming model based on module control instead
of clock control was introduced.
Expose two APIs to allow the upper layer (omap_hwmod) to control
the module mode independently of the parent clocks management.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: renamed 'omap4_cm_' fns to 'omap4_cminst_'; cleaned up
 kerneldoc]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/cminst44xx.h b/arch/arm/mach-omap2/cminst44xx.h
index a985400..f2ea645 100644
--- a/arch/arm/mach-omap2/cminst44xx.h
+++ b/arch/arm/mach-omap2/cminst44xx.h
@@ -20,6 +20,11 @@
 extern int omap4_cminst_wait_module_ready(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_offs);
 extern int omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_offs);
 
+extern void omap4_cminst_module_enable(u8 mode, u8 part, u16 inst, s16 cdoffs,
+				       u16 clkctrl_offs);
+extern void omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs,
+					u16 clkctrl_offs);
+
 /*
  * In an ideal world, we would not export these low-level functions,
  * but this will probably take some time to fix properly