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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-09-12 12:02:26 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-09-12 12:02:26 +0100 |
commit | ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3 (patch) | |
tree | d827bca3fc825a0ac33efbcd493713be40fcc812 /arch/arm/mach-s5pc100/include/mach/pwm-clock.h | |
parent | cf7a2b4fb6a9b86779930a0a123b0df41aa9208f (diff) | |
parent | f17a1f06d2fa93f4825be572622eb02c4894db4e (diff) | |
download | op-kernel-dev-ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3.zip op-kernel-dev-ddd559b13f6d2fe3ad68c4b3f5235fd3c2eae4e3.tar.gz |
Merge branch 'devel-stable' into devel
Conflicts:
MAINTAINERS
arch/arm/mm/fault.c
Diffstat (limited to 'arch/arm/mach-s5pc100/include/mach/pwm-clock.h')
-rw-r--r-- | arch/arm/mach-s5pc100/include/mach/pwm-clock.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm/mach-s5pc100/include/mach/pwm-clock.h b/arch/arm/mach-s5pc100/include/mach/pwm-clock.h new file mode 100644 index 0000000..b34d2f7 --- /dev/null +++ b/arch/arm/mach-s5pc100/include/mach/pwm-clock.h @@ -0,0 +1,56 @@ +/* linux/arch/arm/mach-s5pc100/include/mach/pwm-clock.h + * + * Copyright 2009 Samsung Electronics Co. + * Byungho Min <bhmin@samsung.com> + * + * S5PC100 - pwm clock and timer support + * + * Based on mach-s3c6400/include/mach/pwm-clock.h + */ + +/** + * pwm_cfg_src_is_tclk() - return whether the given mux config is a tclk + * @tcfg: 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 >= S3C64XX_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 << 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 1; +} + +/** + * 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); +} + +#define S3C_TCFG1_MUX_TCLK S3C64XX_TCFG1_MUX_TCLK |