Add KEY_MICMUTE and enable it on Lenovo X220

[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / lib / reciprocal_div.c

#include <asm/div64.h>
#include <linux/reciprocal_div.h>

u32 reciprocal_value(u32 k)
{
        u64 val = (1LL << 32) + (k - 1);
        do_div(val, k);
        return (u32)val;
}