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author | Ingo Molnar <mingo@elte.hu> | 2009-01-02 22:41:36 +0100 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-01-02 22:41:36 +0100 |
commit | 923a789b49c7269a0245d5af6afe486188d940df (patch) | |
tree | c3f168427372e64f7467a794f313416da5086ba0 /arch/arm/plat-s3c24xx/include/mach/pwm-clock.h | |
parent | 103ceffb9501531f6931df6aebc11a05189201f0 (diff) | |
parent | b840d79631c882786925303c2b0f4fefc31845ed (diff) | |
download | kernel-crypto-923a789b49c7269a0245d5af6afe486188d940df.tar.gz kernel-crypto-923a789b49c7269a0245d5af6afe486188d940df.tar.xz kernel-crypto-923a789b49c7269a0245d5af6afe486188d940df.zip |
Merge branch 'linus' into x86/cleanups
Conflicts:
arch/x86/kernel/reboot.c
Diffstat (limited to 'arch/arm/plat-s3c24xx/include/mach/pwm-clock.h')
-rw-r--r-- | arch/arm/plat-s3c24xx/include/mach/pwm-clock.h | 55 |
1 files changed, 55 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 new file mode 100644 index 00000000000..a087de21bc2 --- /dev/null +++ b/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h @@ -0,0 +1,55 @@ +/* linux/arch/arm/plat-s3c24xx/include/mach/pwm-clock.h + * + * Copyright 2008 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * http://armlinux.simtec.co.uk/ + * + * S3C24xx - pwm clock and timer support + */ + +/** + * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk + * @cfg: The timer TCFG1 register bits shifted down to 0. + * + * Return true if the given configuration from TCFG1 is a TCLK instead + * any of the TDIV clocks. + */ +static inline int pwm_cfg_src_is_tclk(unsigned long tcfg) +{ + return tcfg == S3C2410_TCFG1_MUX_TCLK; +} + +/** + * tcfg_to_divisor() - convert tcfg1 setting to a divisor + * @tcfg1: The tcfg1 setting, shifted down. + * + * Get the divisor value for the given tcfg1 setting. We assume the + * caller has already checked to see if this is not a TCLK source. + */ +static inline unsigned long tcfg_to_divisor(unsigned long tcfg1) +{ + return 1 << (1 + tcfg1); +} + +/** + * pwm_tdiv_has_div1() - does the tdiv setting have a /1 + * + * Return true if we have a /1 in the tdiv setting. + */ +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 |