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authorHeiko Stuebner <heiko@sntech.de>2011-10-14 15:08:57 +0900
committerKukjin Kim <kgene.kim@samsung.com>2011-10-14 15:15:53 +0900
commit33ccedfd1b79a7cf649b2991e95bae415c013240 (patch)
treea5210ff54f370adb3dd852cb1a99abaa0a7e2e27 /arch
parent866a1c8c354e613c2bf378a1cd562756d4a32e75 (diff)
ARM: S3C24XX: use clk_get_rate to init fclk in common_setup_clocks
Previously the fclk rate was calculated by dividing the pll through the divider value of the armdiv. With a real armdiv clk in place it's possible to simply read its value, which does essentially the same. This change makes the whole fdiv_fn function pointers supplied to s3c2443_common_init_clocks and s3c2443_common_setup_clocks obsolete, so remove it too. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-s3c2416/clock.c11
-rw-r--r--arch/arm/mach-s3c2443/clock.c11
-rw-r--r--arch/arm/plat-s3c24xx/s3c2443-clock.c8
-rw-r--r--arch/arm/plat-samsung/include/plat/s3c2443.h5
4 files changed, 9 insertions, 26 deletions
diff --git a/arch/arm/mach-s3c2416/clock.c b/arch/arm/mach-s3c2416/clock.c
index 7aa0cfa2f9b..afbbe8bc21d 100644
--- a/arch/arm/mach-s3c2416/clock.c
+++ b/arch/arm/mach-s3c2416/clock.c
@@ -133,16 +133,9 @@ static struct clk hsmmc0_clk = {
.ctrlbit = S3C2416_HCLKCON_HSMMC0,
};
-static inline unsigned int s3c2416_fclk_div(unsigned long clkcon0)
-{
- clkcon0 &= S3C2416_CLKDIV0_ARMDIV_MASK;
-
- return armdiv[clkcon0 >> S3C2443_CLKDIV0_ARMDIV_SHIFT];
-}
-
void __init_or_cpufreq s3c2416_setup_clocks(void)
{
- s3c2443_common_setup_clocks(s3c2416_get_pll, s3c2416_fclk_div);
+ s3c2443_common_setup_clocks(s3c2416_get_pll);
}
@@ -166,7 +159,7 @@ void __init s3c2416_init_clocks(int xtal)
clk_epll.parent = &clk_epllref.clk;
- s3c2443_common_init_clocks(xtal, s3c2416_get_pll, s3c2416_fclk_div,
+ s3c2443_common_init_clocks(xtal, s3c2416_get_pll,
armdiv, ARRAY_SIZE(armdiv),
S3C2416_CLKDIV0_ARMDIV_MASK);
diff --git a/arch/arm/mach-s3c2443/clock.c b/arch/arm/mach-s3c2443/clock.c
index 6fda4bf09cd..b93cb96f57a 100644
--- a/arch/arm/mach-s3c2443/clock.c
+++ b/arch/arm/mach-s3c2443/clock.c
@@ -76,13 +76,6 @@ static unsigned int armdiv[16] = {
[S3C2443_CLKDIV0_ARMDIV_16 >> S3C2443_CLKDIV0_ARMDIV_SHIFT] = 16,
};
-static inline unsigned int s3c2443_fclk_div(unsigned long clkcon0)
-{
- clkcon0 &= S3C2443_CLKDIV0_ARMDIV_MASK;
-
- return armdiv[clkcon0 >> S3C2443_CLKDIV0_ARMDIV_SHIFT];
-}
-
/* hsspi
*
* high-speed spi clock, sourced from esysclk
@@ -191,7 +184,7 @@ static struct clk *clks[] __initdata = {
void __init_or_cpufreq s3c2443_setup_clocks(void)
{
- s3c2443_common_setup_clocks(s3c2443_get_mpll, s3c2443_fclk_div);
+ s3c2443_common_setup_clocks(s3c2443_get_mpll);
}
void __init s3c2443_init_clocks(int xtal)
@@ -202,7 +195,7 @@ void __init s3c2443_init_clocks(int xtal)
clk_epll.rate = s3c2443_get_epll(epllcon, xtal);
clk_epll.parent = &clk_epllref.clk;
- s3c2443_common_init_clocks(xtal, s3c2443_get_mpll, s3c2443_fclk_div,
+ s3c2443_common_init_clocks(xtal, s3c2443_get_mpll,
armdiv, ARRAY_SIZE(armdiv),
S3C2443_CLKDIV0_ARMDIV_MASK);
diff --git a/arch/arm/plat-s3c24xx/s3c2443-clock.c b/arch/arm/plat-s3c24xx/s3c2443-clock.c
index 40a87206400..d3ebbeedf6d 100644
--- a/arch/arm/plat-s3c24xx/s3c2443-clock.c
+++ b/arch/arm/plat-s3c24xx/s3c2443-clock.c
@@ -520,8 +520,7 @@ static inline unsigned long s3c2443_get_hdiv(unsigned long clkcon0)
/* EPLLCON compatible enough to get on/off information */
-void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll,
- fdiv_fn get_fdiv)
+void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll)
{
unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
unsigned long mpllcon = __raw_readl(S3C2443_MPLLCON);
@@ -541,7 +540,7 @@ void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll,
pll = get_mpll(mpllcon, xtal);
clk_msysclk.clk.rate = pll;
- fclk = pll / get_fdiv(clkdiv0);
+ fclk = clk_get_rate(&clk_armdiv);
hclk = s3c2443_prediv_getrate(&clk_prediv);
hclk /= s3c2443_get_hdiv(clkdiv0);
pclk = hclk / ((clkdiv0 & S3C2443_CLKDIV0_HALF_PCLK) ? 2 : 1);
@@ -590,7 +589,6 @@ static struct clksrc_clk *clksrcs[] __initdata = {
};
void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
- fdiv_fn get_fdiv,
unsigned int *divs, int nr_divs,
int divmask)
{
@@ -620,5 +618,5 @@ void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
- s3c2443_common_setup_clocks(get_mpll, get_fdiv);
+ s3c2443_common_setup_clocks(get_mpll);
}
diff --git a/arch/arm/plat-samsung/include/plat/s3c2443.h b/arch/arm/plat-samsung/include/plat/s3c2443.h
index 5fc4ad0fd75..7fae1a05069 100644
--- a/arch/arm/plat-samsung/include/plat/s3c2443.h
+++ b/arch/arm/plat-samsung/include/plat/s3c2443.h
@@ -37,10 +37,9 @@ extern int s3c2443_baseclk_add(void);
struct clk; /* some files don't need clk.h otherwise */
typedef unsigned int (*pll_fn)(unsigned int reg, unsigned int base);
-typedef unsigned int (*fdiv_fn)(unsigned long clkcon0);
-extern void s3c2443_common_setup_clocks(pll_fn get_mpll, fdiv_fn fdiv);
-extern void s3c2443_common_init_clocks(int xtal, pll_fn get_mpll, fdiv_fn fdiv,
+extern void s3c2443_common_setup_clocks(pll_fn get_mpll);
+extern void s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
unsigned int *divs, int nr_divs,
int divmask);