sh: Use arch_flags to simplify sh7722 siu clock code

Make use of arch_flags to simplify the SIU clock code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 9 insertions, 38 deletions

diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 299138ebe160..d7b14660f737 100644
--- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
+++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
@@ -411,40 +411,16 @@ static struct clk_ops sh7722_frqcr_clk_ops = {
  * clock ops methods for SIU A/B and IrDA clock
  *
  */
-static int sh7722_siu_which(struct clk *clk)
-{
-        if (!strcmp(clk->name, "siu_a_clk"))
-                return 0;
-        if (!strcmp(clk->name, "siu_b_clk"))
-                return 1;
-#if defined(CONFIG_CPU_SUBTYPE_SH7722)
-        if (!strcmp(clk->name, "irda_clk"))
-                return 2;
-#endif
-        return -EINVAL;
-}
-
-static unsigned long sh7722_siu_regs[] = {
-        [0] = SCLKACR,
-        [1] = SCLKBCR,
-#if defined(CONFIG_CPU_SUBTYPE_SH7722)
-        [2] = IrDACLKCR,
-#endif
-};
 
 static int sh7722_siu_start_stop(struct clk *clk, int enable)
 {
-        int siu = sh7722_siu_which(clk);
         unsigned long r;
 
-        if (siu < 0)
-                return siu;
-        BUG_ON(siu > 2);
-        r = ctrl_inl(sh7722_siu_regs[siu]);
+        r = ctrl_inl(clk->arch_flags);
         if (enable)
-                ctrl_outl(r & ~(1 << 8), sh7722_siu_regs[siu]);
+                ctrl_outl(r & ~(1 << 8), clk->arch_flags);
         else
-                ctrl_outl(r | (1 << 8), sh7722_siu_regs[siu]);
+                ctrl_outl(r | (1 << 8), clk->arch_flags);
         return 0;
 }
 
@@ -496,31 +472,23 @@ static void sh7722_video_recalc(struct clk *clk)
 
 static int sh7722_siu_set_rate(struct clk *clk, unsigned long rate, int algo_id)
 {
-        int siu = sh7722_siu_which(clk);
         unsigned long r;
         int div;
 
-        if (siu < 0)
-                return siu;
-        BUG_ON(siu > 2);
-        r = ctrl_inl(sh7722_siu_regs[siu]);
+        r = ctrl_inl(clk->arch_flags);
         div = sh7722_find_divisors(clk->parent->rate, rate);
         if (div < 0)
                 return div;
         r = (r & ~0xF) | div;
-        ctrl_outl(r, sh7722_siu_regs[siu]);
+        ctrl_outl(r, clk->arch_flags);
         return 0;
 }
 
 static void sh7722_siu_recalc(struct clk *clk)
 {
-        int siu = sh7722_siu_which(clk);
         unsigned long r;
 
-        if (siu < 0)
-                return /* siu */ ;
-        BUG_ON(siu > 2);
-        r = ctrl_inl(sh7722_siu_regs[siu]);
+        r = ctrl_inl(clk->arch_flags);
         clk->rate = clk->parent->rate * 2 / divisors2[r & 0xF];
 }
 
@@ -567,17 +535,20 @@ static struct clk sh7722_sdram_clock = {
  */
 static struct clk sh7722_siu_a_clock = {
         .name = "siu_a_clk",
+        .arch_flags = SCLKACR,
         .ops = &sh7722_siu_clk_ops,
 };
 
 static struct clk sh7722_siu_b_clock = {
         .name = "siu_b_clk",
+        .arch_flags = SCLKBCR,
         .ops = &sh7722_siu_clk_ops,
 };
 
 #if defined(CONFIG_CPU_SUBTYPE_SH7722)
 static struct clk sh7722_irda_clock = {
         .name = "irda_clk",
+        .arch_flags = IrDACLKCR,
         .ops = &sh7722_siu_clk_ops,
 };
 #endif