ARM: OMAP3: clock: use clk_features flags for omap3 DPLL4 checks

DPLL4 can't be reprogrammed on OMAP3430 ES1.0 due to hardware limitation.
Currently, the code does runtime omap_rev() check to see the chip it is
being executed on, instead, change this to use clk_features flags.
This avoids need for runtime omap_rev() checks.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 500530d1364a..c2b239857cc4 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -771,4 +771,8 @@ void __init ti_clk_init_features(void)
                 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;
+
+        /* On OMAP3430 ES1.0, DPLL4 can't be re-programmed */
+        if (omap_rev() == OMAP3430_REV_ES1_0)
+                ti_clk_features.flags |= TI_CLK_DPLL4_DENY_REPROGRAM;
 }