pwm-clock.h

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/* linux/arch/arm/plat-samsung/include/plat/pwm-clock.h
 *
 * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
 *      http://www.samsung.com
 *
 * Copyright 2008 Openmoko, Inc.
 * Copyright 2008 Simtec Electronics
 *      Ben Dooks <[email protected]>
 *      http://armlinux.simtec.co.uk/
 *
 * SAMSUNG - pwm clock and timer support
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
*/

#ifndef __ASM_PLAT_PWM_CLOCK_H
#define __ASM_PLAT_PWM_CLOCK_H __FILE__

static inline int pwm_cfg_src_is_tclk(unsigned long tcfg)
{
    if (soc_is_s3c24xx())
        return tcfg == S3C2410_TCFG1_MUX_TCLK;
    else if (soc_is_s3c64xx() || soc_is_s5pc100())
        return tcfg >= S3C64XX_TCFG1_MUX_TCLK;
    else if (soc_is_s5p6440() || soc_is_s5p6450())
        return 0;
    else
        return tcfg == S3C64XX_TCFG1_MUX_TCLK;
}

static inline unsigned long tcfg_to_divisor(unsigned long tcfg1)
{
    if (soc_is_s3c24xx())
        return 1 << (tcfg1 + 1);
    else
        return 1 << tcfg1;
}

static inline unsigned int pwm_tdiv_has_div1(void)
{
    if (soc_is_s3c24xx())
        return 0;
    else
        return 1;
}

static inline unsigned long pwm_tdiv_div_bits(unsigned int div)
{
    if (soc_is_s3c24xx())
        return ilog2(div) - 1;
    else
        return ilog2(div);
}
#endif /* __ASM_PLAT_PWM_CLOCK_H */