ARM: OMAP2+: clock/interface: add a clk_features definition for idlest value

Helps to get rid of some runtime cpu_is_x checks. This also allows eventual
migration of the code under clock driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

2 files changed, 12 insertions, 7 deletions

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 23b5f050c8a9..5a0cac93d9ec 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -305,13 +305,7 @@ void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
          * 34xx reverses this, just to keep us on our toes
          * AM35xx uses both, depending on the module.
          */
-        if (cpu_is_omap24xx())
-                *idlest_val = OMAP24XX_CM_IDLEST_VAL;
-        else if (cpu_is_omap34xx())
-                *idlest_val = OMAP34XX_CM_IDLEST_VAL;
-        else
-                BUG();
-
+        *idlest_val = ti_clk_features.cm_idlest_val;
 }
 
 /**
@@ -788,4 +782,14 @@ void __init ti_clk_init_features(void)
         /* Jitter correction only available on OMAP343X */
         if (cpu_is_omap343x())
                 ti_clk_features.flags |= TI_CLK_DPLL_HAS_FREQSEL;
+
+        /* Idlest value for interface clocks.
+         * 24xx uses 0 to indicate not ready, and 1 to indicate ready.
+         * 34xx reverses this, just to keep us on our toes
+         * AM35xx uses both, depending on the module.
+         */
+        if (cpu_is_omap24xx())
+                ti_clk_features.cm_idlest_val = OMAP24XX_CM_IDLEST_VAL;
+        else if (cpu_is_omap34xx())
+                ti_clk_features.cm_idlest_val = OMAP34XX_CM_IDLEST_VAL;
 }
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index d3ef147b32a1..0f100dc4e97f 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -233,6 +233,7 @@ struct ti_clk_features {
         long fint_band1_max;
         long fint_band2_min;
         u8 dpll_bypass_vals;
+        u8 cm_idlest_val;
 };
 
 #define TI_CLK_DPLL_HAS_FREQSEL         (1 << 0)