Platforms can call omap2_init_clk_hw_omap_clocks() to register a clock
using clk_hw_omap. omap2_clk_enable_autoidle_all() and
omap2_clk_disable_autoidle_all() can then be used to run through
all the clocks which support autoidle to enable/disable them.
Signed-off-by: Rajendra Nayak <rnayak@xxxxxx>
---
arch/arm/mach-omap2/clock.c | 34 ++++++++++++++++++++++++++++++++++
arch/arm/mach-omap2/clock.h | 3 +++
2 files changed, 37 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 6139ab6..4c7fa4b 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -50,6 +50,7 @@ u16 cpu_mask;
static bool clkdm_control = true;
#ifdef CONFIG_COMMON_CLK
+LIST_HEAD(clk_hw_omap_clocks);
/*
* Used for clocks that have the same value as the parent clock,
@@ -343,6 +344,37 @@ static int __init omap_clk_setup(char *str)
}
__setup("mpurate=", omap_clk_setup);
+void omap2_init_clk_hw_omap_clocks(struct clk *clk)
+{
+ struct clk_hw_omap *c;
+
+ if (__clk_get_flags(clk) & CLK_IS_BASIC)
+ return;
+
+ c = to_clk_hw_omap(__clk_get_hw(clk));
+ list_add(&c->node, &clk_hw_omap_clocks);
+}
+
+int omap2_clk_enable_autoidle_all(void)
+{
+ struct clk_hw_omap *c;
+
+ list_for_each_entry(c, &clk_hw_omap_clocks, node)
+ if (c->ops && c->ops->allow_idle)
+ c->ops->allow_idle(c);
+ return 0;
+}
+
+int omap2_clk_disable_autoidle_all(void)
+{
+ struct clk_hw_omap *c;
+
+ list_for_each_entry(c, &clk_hw_omap_clocks, node)
+ if (c->ops && c->ops->allow_idle)
+ c->ops->allow_idle(c);
+ return 0;
+}
+
const struct clk_hw_omap_ops clkhwops_omap3_dpll = {
.allow_idle = omap3_dpll_allow_idle,
.deny_idle = omap3_dpll_deny_idle,
@@ -359,6 +391,8 @@ const struct clk_hw_omap_ops clkhwops_wait = {
.find_idlest = omap2_clk_dflt_find_idlest,
.find_companion = omap2_clk_dflt_find_companion,
};
+late_initcall(omap2_clk_enable_autoidle_all);
+
#else
int omap2_dflt_clk_enable(struct clk *clk)
{
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index f09ca8d..fd73f7a 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -401,6 +401,9 @@ void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk, void __iomem **other
u8 *other_bit);
void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, void __iomem **idlest_reg,
u8 *idlest_bit, u8 *idlest_val);
+void omap2_init_clk_hw_omap_clocks(struct clk *clk);
+int omap2_clk_enable_autoidle_all(void);
+int omap2_clk_disable_autoidle_all(void);
#else
int omap2_dflt_clk_enable(struct clk *clk);
void omap2_dflt_clk_disable(struct clk *clk);
--
1.7.1
--
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