ARM: S5P: Reduce duplicated EPLL control codes

S5P Samsung SoCs has a EPLL to support various PLL clock sources for other
H/W blocks. Until now, to control EPLL, each of SoCs make their own functions
in 'mach-s5pxxx/clock.c'. But some of functions, 'xxx_epll_get_rate()' and
'xxx_epll_enable()', are exactly same in all S5P SoCs, so this patch move
these duplicated codes to common EPLL functions that use platform wide.

Signed-off-by: Seungwhan Youn <sw.youn@samsung.com>
Acked-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

4 files changed, 6 insertions, 22 deletions

diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
index f93dcd8b4d6a..cfccdff744d2 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6440.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c
@@ -85,7 +85,7 @@ static int s5p6440_epll_set_rate(struct clk *clk, unsigned long rate)
 }
 
 static struct clk_ops s5p6440_epll_ops = {
-        .get_rate = s5p64x0_epll_get_rate,
+        .get_rate = s5p_epll_get_rate,
         .set_rate = s5p6440_epll_set_rate,
 };
 
@@ -548,7 +548,7 @@ void __init_or_cpufreq s5p6440_setup_clocks(void)
 
         /* Set S5P6440 functions for clk_fout_epll */
 
-        clk_fout_epll.enable = s5p64x0_epll_enable;
+        clk_fout_epll.enable = s5p_epll_enable;
         clk_fout_epll.ops = &s5p6440_epll_ops;
 
         clk_48m.enable = s5p64x0_clk48m_ctrl;
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c
index f9afb05b217c..f1498d35111b 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6450.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c
@@ -86,7 +86,7 @@ static int s5p6450_epll_set_rate(struct clk *clk, unsigned long rate)
 }
 
 static struct clk_ops s5p6450_epll_ops = {
-        .get_rate = s5p64x0_epll_get_rate,
+        .get_rate = s5p_epll_get_rate,
         .set_rate = s5p6450_epll_set_rate,
 };
 
@@ -581,7 +581,7 @@ void __init_or_cpufreq s5p6450_setup_clocks(void)
 
         /* Set S5P6450 functions for clk_fout_epll */
 
-        clk_fout_epll.enable = s5p64x0_epll_enable;
+        clk_fout_epll.enable = s5p_epll_enable;
         clk_fout_epll.ops = &s5p6450_epll_ops;
 
         clk_48m.enable = s5p64x0_clk48m_ctrl;
diff --git a/arch/arm/mach-s5p64x0/clock.c b/arch/arm/mach-s5p64x0/clock.c
index 523ba8039ac2..b52c6e2f37a6 100644
--- a/arch/arm/mach-s5p64x0/clock.c
+++ b/arch/arm/mach-s5p64x0/clock.c
@@ -73,24 +73,6 @@ static const u32 clock_table[][3] = {
         {L2 * 1000, (3 << ARM_DIV_RATIO_SHIFT), (0 << S5P64X0_CLKDIV0_HCLK_SHIFT)},
 };
 
-int s5p64x0_epll_enable(struct clk *clk, int enable)
-{
-        unsigned int ctrlbit = clk->ctrlbit;
-        unsigned int epll_con = __raw_readl(S5P64X0_EPLL_CON) & ~ctrlbit;
-
-        if (enable)
-                __raw_writel(epll_con | ctrlbit, S5P64X0_EPLL_CON);
-        else
-                __raw_writel(epll_con, S5P64X0_EPLL_CON);
-
-        return 0;
-}
-
-unsigned long s5p64x0_epll_get_rate(struct clk *clk)
-{
-        return clk->rate;
-}
-
 unsigned long s5p64x0_armclk_get_rate(struct clk *clk)
 {
         unsigned long rate = clk_get_rate(clk->parent);
diff --git a/arch/arm/mach-s5p64x0/include/mach/regs-clock.h b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
index 58e1bc813804..a133f22fa155 100644
--- a/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5p64x0/include/mach/regs-clock.h
@@ -60,4 +60,6 @@
 #define ARM_DIV_RATIO_SHIFT             0
 #define ARM_DIV_MASK                    (0xF << ARM_DIV_RATIO_SHIFT)
 
+#define S5P_EPLL_CON                    S5P64X0_EPLL_CON
+
 #endif /* __ASM_ARCH_REGS_CLOCK_H */