mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-26 13:44:15 +08:00
b78232da3f
This patch fixes return value in below functions - pwm_cfg_src_is_tclk - tcfg_to_divisor - pwm_tdiv_has_div1 - pwm_tdiv_div_bits And this patch changes Copyright ordering. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Ben Dooks <ben-linux@fluff.org>
71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
/* linux/arch/arm/mach-s5pv210/include/mach/pwm-clock.h
|
|
*
|
|
* Copyright (c) 2009 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com/
|
|
*
|
|
* Copyright 2008 Openmoko, Inc.
|
|
* Copyright 2008 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
* http://armlinux.simtec.co.uk/
|
|
*
|
|
* Based on arch/arm/mach-s3c64xx/include/mach/pwm-clock.h
|
|
*
|
|
* S5PV210 - 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_ARCH_PWMCLK_H
|
|
#define __ASM_ARCH_PWMCLK_H __FILE__
|
|
|
|
/**
|
|
* 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
|
|
|
|
#endif /* __ASM_ARCH_PWMCLK_H */
|