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authorRussell King <rmk+kernel@arm.linux.org.uk>2010-01-14 12:48:06 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-05-02 09:35:33 +0100
commitf4b8b319bf21bf3576014ce7336763cd3e1684ef (patch)
tree5f3200e3b82dd23fc58633e010f3996246d81607 /arch/arm/plat-versatile
parentc5a0adb51002e51a4254cb7f0ab7190d41d8b930 (diff)
ARM: Realview/Versatile/Integrator: separate out common clock code
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/Makefile1
-rw-r--r--arch/arm/plat-versatile/clock.c60
2 files changed, 61 insertions, 0 deletions
diff --git a/arch/arm/plat-versatile/Makefile b/arch/arm/plat-versatile/Makefile
new file mode 100644
index 000000000000..2228fd1725ac
--- /dev/null
+++ b/arch/arm/plat-versatile/Makefile
@@ -0,0 +1 @@
+obj-y := clock.o
diff --git a/arch/arm/plat-versatile/clock.c b/arch/arm/plat-versatile/clock.c
new file mode 100644
index 000000000000..2fa34de92325
--- /dev/null
+++ b/arch/arm/plat-versatile/clock.c
@@ -0,0 +1,60 @@
+/*
+ * linux/arch/arm/plat-versatile/clock.c
+ *
+ * Copyright (C) 2004 ARM Limited.
+ * Written by Deep Blue Solutions Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/clk.h>
+#include <linux/mutex.h>
+
+#include <asm/hardware/icst.h>
+
+#include <mach/clkdev.h>
+
+int clk_enable(struct clk *clk)
+{
+ return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+ return clk->rate;
+}
+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);
+}
+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;
+ }
+ return ret;
+}
+EXPORT_SYMBOL(clk_set_rate);