OMAP: CM: Move MAX_MODULE_READY_TIME to cm.h

The maximum timeout to wait for the PRCM to request that a module
exit idle or reach functionnal state is common to OMAP2/3/4 SoCs,
so, move it to the chip family-common cm.h include file.

Reduce the timeout from 20 ms to 2 ms.

Signed-off-by: Benoit Cousson <b-cousson@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h
index b6ab183..bbc69df 100644
--- a/arch/arm/mach-omap2/cm.h
+++ b/arch/arm/mach-omap2/cm.h
@@ -144,4 +144,13 @@
 #define OMAP24XX_CM_IDLEST_VAL		0
 #define OMAP34XX_CM_IDLEST_VAL		1
 
+/*
+ * MAX_MODULE_READY_TIME: max duration in microseconds to wait for the
+ * PRCM to request that a module exit the inactive state in the case of
+ * OMAP2 & 3.
+ * In the case of OMAP4 this is the max duration in microseconds for the
+ * module to reach the functionnal state from an inactive state.
+ */
+#define MAX_MODULE_READY_TIME		2000
+
 #endif