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-rw-r--r--arch/arm/plat-mxc/clock.c11
-rw-r--r--arch/arm/plat-mxc/include/mach/clock.h4
2 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/clock.c b/arch/arm/plat-mxc/clock.c
index 2ed3ab1..5079787 100644
--- a/arch/arm/plat-mxc/clock.c
+++ b/arch/arm/plat-mxc/clock.c
@@ -41,6 +41,7 @@
#include <mach/clock.h>
#include <mach/hardware.h>
+#ifndef CONFIG_COMMON_CLK
static LIST_HEAD(clocks);
static DEFINE_MUTEX(clocks_mutex);
@@ -200,6 +201,16 @@ struct clk *clk_get_parent(struct clk *clk)
}
EXPORT_SYMBOL(clk_get_parent);
+#else
+
+/*
+ * Lock to protect the clock module (ccm) registers. Used
+ * on all i.MXs
+ */
+DEFINE_SPINLOCK(imx_ccm_lock);
+
+#endif /* CONFIG_COMMON_CLK */
+
/*
* Get the resulting clock rate from a PLL register value and the input
* frequency. PLLs with this register layout can at least be found on
diff --git a/arch/arm/plat-mxc/include/mach/clock.h b/arch/arm/plat-mxc/include/mach/clock.h
index 753a598..bd940c7 100644
--- a/arch/arm/plat-mxc/include/mach/clock.h
+++ b/arch/arm/plat-mxc/include/mach/clock.h
@@ -23,6 +23,7 @@
#ifndef __ASSEMBLY__
#include <linux/list.h>
+#ifndef CONFIG_COMMON_CLK
struct module;
struct clk {
@@ -59,6 +60,9 @@ struct clk {
int clk_register(struct clk *clk);
void clk_unregister(struct clk *clk);
+#endif /* CONFIG_COMMON_CLK */
+
+extern spinlock_t imx_ccm_lock;
unsigned long mxc_decode_pll(unsigned int pll, u32 f_ref);
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