diff options
Diffstat (limited to 'libdde-linux26/contrib/arch/arm/mach-realview/clock.c')
-rw-r--r-- | libdde-linux26/contrib/arch/arm/mach-realview/clock.c | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/libdde-linux26/contrib/arch/arm/mach-realview/clock.c b/libdde-linux26/contrib/arch/arm/mach-realview/clock.c new file mode 100644 index 00000000..a7043115 --- /dev/null +++ b/libdde-linux26/contrib/arch/arm/mach-realview/clock.c @@ -0,0 +1,64 @@ +/* + * linux/arch/arm/mach-realview/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/device.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/clk.h> +#include <linux/mutex.h> + +#include <asm/hardware/icst307.h> + +#include "clock.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 icst307_vco vco; + vco = icst307_khz_to_vco(clk->params, rate / 1000); + return icst307_khz(clk->params, vco) * 1000; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + int ret = -EIO; + + if (clk->setvco) { + struct icst307_vco vco; + + vco = icst307_khz_to_vco(clk->params, rate / 1000); + clk->rate = icst307_khz(clk->params, vco) * 1000; + clk->setvco(clk, vco); + ret = 0; + } + return ret; +} +EXPORT_SYMBOL(clk_set_rate); |