OMAP4: PM: TWL6030: address 0V conversions

0V conversions should be mapped to 0 as it is meant to denote
off voltages.

Signed-off-by: Nishanth Menon <nm@ti.com>

diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index 5def7c2..b30adf3 100644 (file)
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -95,6 +95,8 @@ static unsigned long twl6030_vsel_to_uv(const u8 vsel)
                is_offset_valid = true;
        }
 
+       if (!vsel)
+               return 0;
        /*
         * There is no specific formula for voltage to vsel
         * conversion above 1.3V. There are special hardcoded
@@ -127,6 +129,8 @@ static u8 twl6030_uv_to_vsel(unsigned long uv)
                is_offset_valid = true;
        }
 
+       if (!uv)
+               return 0x00;
        /*
         * There is no specific formula for voltage to vsel
         * conversion above 1.3V. There are special hardcoded