ARM: shmobile: sh7372: use fixed ratio clock

Current clock-sh7372 is using own implement
for each divX clocks.
This patch switches to use fixed ratio clock,
and was tesed on mackerel board.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 6c23e3f..7e10593 100644 (file)
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/sh_clk.h>
 #include <linux/clkdev.h>
+#include <mach/clock.h>
 #include <mach/common.h>
 
 /* SH7372 registers */
@@ -83,39 +84,12 @@ struct clk sh7372_extal2_clk = {
        .rate           = 48000000,
 };
 
-/* A fixed divide-by-2 block */
-static unsigned long div2_recalc(struct clk *clk)
-{
-       return clk->parent->rate / 2;
-}
-
-static struct sh_clk_ops div2_clk_ops = {
-       .recalc         = div2_recalc,
-};
+SH_CLK_RATIO(div2, 1, 2);
 
-/* Divide dv_clki by two */
-struct clk sh7372_dv_clki_div2_clk = {
-       .ops            = &div2_clk_ops,
-       .parent         = &sh7372_dv_clki_clk,
-};
-
-/* Divide extal1 by two */
-static struct clk extal1_div2_clk = {
-       .ops            = &div2_clk_ops,
-       .parent         = &sh7372_extal1_clk,
-};
-
-/* Divide extal2 by two */
-static struct clk extal2_div2_clk = {
-       .ops            = &div2_clk_ops,
-       .parent         = &sh7372_extal2_clk,
-};
-
-/* Divide extal2 by four */
-static struct clk extal2_div4_clk = {
-       .ops            = &div2_clk_ops,
-       .parent         = &extal2_div2_clk,
-};
+SH_FIXED_RATIO_CLKg(sh7372_dv_clki_div2_clk,   sh7372_dv_clki_clk,     div2);
+SH_FIXED_RATIO_CLK(extal1_div2_clk,            sh7372_extal1_clk,      div2);
+SH_FIXED_RATIO_CLK(extal2_div2_clk,            sh7372_extal2_clk,      div2);
+SH_FIXED_RATIO_CLK(extal2_div4_clk,            extal2_div2_clk,        div2);
 
 /* PLLC0 and PLLC1 */
 static unsigned long pllc01_recalc(struct clk *clk)
@@ -147,10 +121,7 @@ static struct clk pllc1_clk = {
 };
 
 /* Divide PLLC1 by two */
-static struct clk pllc1_div2_clk = {
-       .ops            = &div2_clk_ops,
-       .parent         = &pllc1_clk,
-};
+SH_FIXED_RATIO_CLK(pllc1_div2_clk,     pllc1_clk,      div2);
 
 /* PLLC2 */
 
@@ -650,5 +621,4 @@ void __init sh7372_clock_init(void)
                shmobile_clk_init();
        else
                panic("failed to setup sh7372 clocks\n");
-
 }