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authorPaul Walmsley <paul@pwsan.com>2010-01-08 15:23:16 -0700
committerPaul Walmsley <paul@pwsan.com>2010-01-08 15:23:16 -0700
commit4e37c10d8a721b19933491df7af296aac9281004 (patch)
tree3a82d2f29a5e82a700400ff9d48a87f5c114f6c1 /arch/arm
parentca6eccb31ef63722b35ea695f75089adeec319d7 (diff)
downloadop-kernel-dev-4e37c10d8a721b19933491df7af296aac9281004.zip
op-kernel-dev-4e37c10d8a721b19933491df7af296aac9281004.tar.gz
OMAP clock/CPUFreq: add clk_exit_cpufreq_table()
A subsequent patch adds code on OMAP2xxx to dynamically allocate the CPUFreq frequency table in clk_init_cpufreq_table(), so for it to avoid a leak, it will need a corresponding function to free the memory. This patch adds clk_exit_cpufreq_table() with generic code to call a chip-specific variant inside the clockfw_lock spinlock via struct clk_functions. Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-omap/clock.c10
-rw-r--r--arch/arm/plat-omap/cpu-omap.c1
-rw-r--r--arch/arm/plat-omap/include/plat/clock.h2
3 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index a64d84c..d9f8c84 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -329,6 +329,16 @@ void clk_init_cpufreq_table(struct cpufreq_frequency_table **table)
arch_clock->clk_init_cpufreq_table(table);
spin_unlock_irqrestore(&clockfw_lock, flags);
}
+
+void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&clockfw_lock, flags);
+ if (arch_clock->clk_exit_cpufreq_table)
+ arch_clock->clk_exit_cpufreq_table(table);
+ spin_unlock_irqrestore(&clockfw_lock, flags);
+}
#endif
/*-------------------------------------------------------------------------*/
diff --git a/arch/arm/plat-omap/cpu-omap.c b/arch/arm/plat-omap/cpu-omap.c
index f8ddbdd..6d3d333 100644
--- a/arch/arm/plat-omap/cpu-omap.c
+++ b/arch/arm/plat-omap/cpu-omap.c
@@ -134,6 +134,7 @@ static int __init omap_cpu_init(struct cpufreq_policy *policy)
static int omap_cpu_exit(struct cpufreq_policy *policy)
{
+ clk_exit_cpufreq_table(&freq_table);
clk_put(mpu_clk);
return 0;
}
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index 309b6d1..94fe2a0 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -119,6 +119,7 @@ struct clk_functions {
void (*clk_disable_unused)(struct clk *clk);
#ifdef CONFIG_CPU_FREQ
void (*clk_init_cpufreq_table)(struct cpufreq_frequency_table **);
+ void (*clk_exit_cpufreq_table)(struct cpufreq_frequency_table **);
#endif
};
@@ -135,6 +136,7 @@ extern unsigned long followparent_recalc(struct clk *clk);
extern void clk_enable_init_clocks(void);
#ifdef CONFIG_CPU_FREQ
extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);
+extern void clk_exit_cpufreq_table(struct cpufreq_frequency_table **table);
#endif
extern const struct clkops clkops_null;
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