/* 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