OMAP4: Register voltage PMIC parameters with the voltage layer

TWL6030 is the power IC used along with OMAP4 in OMAP4 SDPs,
blaze boards and panda boards. This patch registers the OMAP4
PMIC specific information with the voltage layer.
This also involves implementing a different formula for
voltage to vsel and vsel to voltage calculations from
TWL4030.

Signed-off-by: Thara Gopinath <thara@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index c975a79691b7..1c1b0ab5b978 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -126,11 +126,16 @@ static inline void omap_enable_smartreflex_on_init(void) {}
 
 #ifdef CONFIG_TWL4030_CORE
 extern int omap3_twl_init(void);
+extern int omap4_twl_init(void);
 #else
 static inline int omap3_twl_init(void)
 {
         return -EINVAL;
 }
+static inline int omap4_twl_init(void)
+{
+        return -EINVAL;
+}
 #endif
 
 #endif