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authorJongpill Lee <boyko.lee@samsung.com>2010-03-19 15:33:12 +0900
committerBen Dooks <ben-linux@fluff.org>2010-05-11 09:32:39 +0900
commit474b62f573360947e2740458bde3778d420e1b40 (patch)
treecc391ad78fca14ddece88ef88227e9c88e694de3
parent7ebd467551ed6ae200d7835a84bbda0dcadaa511 (diff)
downloadop-kernel-dev-474b62f573360947e2740458bde3778d420e1b40.zip
op-kernel-dev-474b62f573360947e2740458bde3778d420e1b40.tar.gz
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>
-rw-r--r--arch/arm/mach-s5p6440/include/mach/pwm-clock.h24
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/arm/mach-s5p6440/include/mach/pwm-clock.h b/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
index c4bb7c5..6a2a02f 100644
--- a/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
+++ b/arch/arm/mach-s5p6440/include/mach/pwm-clock.h
@@ -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 */
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