ARM: davinci: add support for multiple power domains

On a new SoC based on DaVinci, there are multiple power
domains similar to that in C6670 (c6x). Currently the
clock module assumes that there are only two power domains
(0 and 1).

This patch removes this restriction to allow porting on to
the new SoC.

Reviewed-by :Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

1 files changed, 3 insertions, 10 deletions

diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 00861139101d..008772e3b843 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -31,19 +31,12 @@ static LIST_HEAD(clocks);
 static DEFINE_MUTEX(clocks_mutex);
 static DEFINE_SPINLOCK(clockfw_lock);
 
-static unsigned psc_domain(struct clk *clk)
-{
-        return (clk->flags & PSC_DSP)
-                ? DAVINCI_GPSC_DSPDOMAIN
-                : DAVINCI_GPSC_ARMDOMAIN;
-}
-
 static void __clk_enable(struct clk *clk)
 {
         if (clk->parent)
                 __clk_enable(clk->parent);
         if (clk->usecount++ == 0 && (clk->flags & CLK_PSC))
-                davinci_psc_config(psc_domain(clk), clk->gpsc, clk->lpsc,
+                davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
                                 true, clk->flags);
 }
 
@@ -53,7 +46,7 @@ static void __clk_disable(struct clk *clk)
                 return;
         if (--clk->usecount == 0 && !(clk->flags & CLK_PLL) &&
             (clk->flags & CLK_PSC))
-                davinci_psc_config(psc_domain(clk), clk->gpsc, clk->lpsc,
+                davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
                                 false, clk->flags);
         if (clk->parent)
                 __clk_disable(clk->parent);
@@ -237,7 +230,7 @@ static int __init clk_disable_unused(void)
 
                 pr_debug("Clocks: disable unused %s\n", ck->name);
 
-                davinci_psc_config(psc_domain(ck), ck->gpsc, ck->lpsc,
+                davinci_psc_config(ck->domain, ck->gpsc, ck->lpsc,
                                 false, ck->flags);
         }
         spin_unlock_irq(&clockfw_lock);