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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-03-01 16:18:39 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-05-02 09:35:38 +0100
commit9bf5b2ef673237e0e43161c56f70ac8bf24e43f9 (patch)
tree6b75855102d54da6ff6d7023ae00e25610e44f92 /arch/arm/plat-versatile
parent3081e43b97cb50a80ebd98ce4b60e4853ad38424 (diff)
downloadblackbird-obmc-linux-9bf5b2ef673237e0e43161c56f70ac8bf24e43f9.tar.gz
blackbird-obmc-linux-9bf5b2ef673237e0e43161c56f70ac8bf24e43f9.zip
ARM: Indirect round/set_rate operations through clk structure
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-versatile')
-rw-r--r--arch/arm/plat-versatile/clock.c38
-rw-r--r--arch/arm/plat-versatile/include/plat/clock.h15
2 files changed, 41 insertions, 12 deletions
diff --git a/arch/arm/plat-versatile/clock.c b/arch/arm/plat-versatile/clock.c
index 2fa34de92325..5c8b6564fdc2 100644
--- a/arch/arm/plat-versatile/clock.c
+++ b/arch/arm/plat-versatile/clock.c
@@ -37,24 +37,38 @@ EXPORT_SYMBOL(clk_get_rate);
long clk_round_rate(struct clk *clk, unsigned long rate)
{
- struct icst_vco vco;
- vco = icst_hz_to_vco(clk->params, rate);
- return icst_hz(clk->params, vco);
+ long ret = -EIO;
+ if (clk->ops && clk->ops->round)
+ ret = clk->ops->round(clk, rate);
+ return ret;
}
EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
int ret = -EIO;
-
- if (clk->setvco) {
- struct icst_vco vco;
-
- vco = icst_hz_to_vco(clk->params, rate);
- clk->rate = icst_hz(clk->params, vco);
- clk->setvco(clk, vco);
- ret = 0;
- }
+ if (clk->ops && clk->ops->set)
+ ret = clk->ops->set(clk, rate);
return ret;
}
EXPORT_SYMBOL(clk_set_rate);
+
+long icst_clk_round(struct clk *clk, unsigned long rate)
+{
+ struct icst_vco vco;
+ vco = icst_hz_to_vco(clk->params, rate);
+ return icst_hz(clk->params, vco);
+}
+EXPORT_SYMBOL(icst_clk_round);
+
+int icst_clk_set(struct clk *clk, unsigned long rate)
+{
+ struct icst_vco vco;
+
+ vco = icst_hz_to_vco(clk->params, rate);
+ clk->rate = icst_hz(clk->params, vco);
+ clk->ops->setvco(clk, vco);
+
+ return 0;
+}
+EXPORT_SYMBOL(icst_clk_set);
diff --git a/arch/arm/plat-versatile/include/plat/clock.h b/arch/arm/plat-versatile/include/plat/clock.h
new file mode 100644
index 000000000000..3cfb024ccd70
--- /dev/null
+++ b/arch/arm/plat-versatile/include/plat/clock.h
@@ -0,0 +1,15 @@
+#ifndef PLAT_CLOCK_H
+#define PLAT_CLOCK_H
+
+#include <asm/hardware/icst.h>
+
+struct clk_ops {
+ long (*round)(struct clk *, unsigned long);
+ int (*set)(struct clk *, unsigned long);
+ void (*setvco)(struct clk *, struct icst_vco);
+};
+
+int icst_clk_set(struct clk *, unsigned long);
+long icst_clk_round(struct clk *, unsigned long);
+
+#endif
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