diff options
Diffstat (limited to 'arch/arm/plat-s3c24xx/include')
| -rw-r--r-- | arch/arm/plat-s3c24xx/include/mach/pwm-clock.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h b/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h index 3194ed329ea..a087de21bc2 100644 --- a/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h +++ b/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h @@ -41,4 +41,15 @@ static inline unsigned int pwm_tdiv_has_div1(void) return 0; } +/** + * pwm_tdiv_div_bits() - calculate TCFG1 divisor value. + * @div: The divisor to calculate the bit information for. + * + * Turn a divisor into the necessary bit field for TCFG1. + */ +static inline unsigned long pwm_tdiv_div_bits(unsigned int div) +{ + return ilog2(div) - 1; +} + #define S3C_TCFG1_MUX_TCLK S3C2410_TCFG1_MUX_TCLK |