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>

diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c
index 299138e..d7b1466 100644 (file)
--- 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