At hwmod init, theres no reason why optional clocks should be left in
clk_prepare()ed state as these are actually directly controlled by the
drivers themselves. Let the drivers prepare/unprepare as well as enable/
disable them.

Signed-off-by: Rajendra Nayak <rna...@ti.com>
Cc: Benoit Cousson <bcous...@baylibre.com>
---
 arch/arm/mach-omap2/omap_hwmod.c |   13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 1f33f5d..9e3afc9 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -857,15 +857,6 @@ static int _init_opt_clks(struct omap_hwmod *oh)
                        continue;
                }
                oc->_clk = c;
-               /*
-                * HACK: This needs a re-visit once clk_prepare() is implemented
-                * to do something meaningful. Today its just a no-op.
-                * If clk_prepare() is used at some point to do things like
-                * voltage scaling etc, then this would have to be moved to
-                * some point where subsystems like i2c and pmic become
-                * available.
-                */
-               clk_prepare(oc->_clk);
        }
 
        return ret;
@@ -945,7 +936,7 @@ static void _enable_optional_clocks(struct omap_hwmod *oh)
                if (oc->_clk) {
                        pr_debug("omap_hwmod: enable %s:%s\n", oc->role,
                                 __clk_get_name(oc->_clk));
-                       clk_enable(oc->_clk);
+                       clk_prepare_enable(oc->_clk);
                }
 }
 
@@ -960,7 +951,7 @@ static void _disable_optional_clocks(struct omap_hwmod *oh)
                if (oc->_clk) {
                        pr_debug("omap_hwmod: disable %s:%s\n", oc->role,
                                 __clk_get_name(oc->_clk));
-                       clk_disable(oc->_clk);
+                       clk_disable_unprepare(oc->_clk);
                }
 }
 
-- 
1.7.9.5

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