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ARM: S5P6440: Bug fix on PWM Timer 

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, and addes 'based on' information.

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>
This commit is contained in:
Jongpill Lee 2010-03-19 15:33:12 +09:00 committed by Ben Dooks
parent 7ebd467551
commit 474b62f573
1 changed files with 16 additions and 8 deletions
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24
arch/arm/mach-s5p6440/include/mach/pwm-clock.h
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@ -1,11 +1,14 @@
/* linux/arch/arm/mach-s5p6440/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/
*
* Copyright 2009 Samsung Electronics Co., Ltd.
* http://www.samsung.com/
* Based on arch/arm/mach-s3c64xx/include/mach/pwm-clock.h
*
* S5P6440 - pwm clock and timer support
*
@ -14,16 +17,19 @@
* 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
* @cfg: The timer TCFG1 register bits shifted down to 0.
* @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 == S3C2410_TCFG1_MUX_TCLK;
return 0;
}
/**
@ -35,7 +41,7 @@ static inline int pwm_cfg_src_is_tclk(unsigned long tcfg)
*/
static inline unsigned long tcfg_to_divisor(unsigned long tcfg1)
{
return 1 << (1 + tcfg1);
return 1 << tcfg1;
}
/**
@ -45,7 +51,7 @@ static inline unsigned long tcfg_to_divisor(unsigned long tcfg1)
*/
static inline unsigned int pwm_tdiv_has_div1(void)
{
return 0;
return 1;
}
/**
@ -56,7 +62,9 @@ static inline unsigned int pwm_tdiv_has_div1(void)
*/
static inline unsigned long pwm_tdiv_div_bits(unsigned int div)
{
return ilog2(div) - 1;
return ilog2(div);
}
#define S3C_TCFG1_MUX_TCLK S3C2410_TCFG1_MUX_TCLK
#define S3C_TCFG1_MUX_TCLK 0
#endif /* __ASM_ARCH_PWMCLK_H */