Introduce a new types for
1. for identifying voltage rails.
2. generic voltage scaling routine and its registration function.
and the prototype for the registration function itself.
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 65a6e04..d36cd1d 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -12,6 +12,9 @@
#define __ARCH_ARM_MACH_OMAP2_PM_H
#include <plat/powerdomain.h>
+#ifdef CONFIG_ARCH_OMAP3
+#include <plat/opp.h>
+#endif
extern u32 enable_off_mode;
extern u32 sleep_while_idle;
@@ -23,6 +26,20 @@ extern void omap_sram_idle(void);
extern int omap3_can_sleep(void);
extern int set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
extern int omap3_idle_init(void);
+#ifdef CONFIG_ARCH_OMAP3
+extern unsigned long get_l3_target_freq(struct omap_opp *);
+enum volt_rail {
+ RAIL_NONE,
+ RAIL_VDD1,
+ RAIL_VDD2,
+};
+
+typedef int (*volt_scale_t) (enum volt_rail, struct omap_opp *,
+ struct omap_opp *);
+extern volt_scale_t voltage_scale;
+extern int pm_register_volt_scaling(volt_scale_t);
+#endif
+
struct cpuidle_params {
u8 valid;
--
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