diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-aaec2000/Makefile | 2 | ||||
-rw-r--r-- | arch/arm/mach-aaec2000/clock.c | 110 | ||||
-rw-r--r-- | arch/arm/mach-aaec2000/clock.h | 23 |
3 files changed, 134 insertions, 1 deletions
diff --git a/arch/arm/mach-aaec2000/Makefile b/arch/arm/mach-aaec2000/Makefile index 20ec83896c37..a8e462f58bc9 100644 --- a/arch/arm/mach-aaec2000/Makefile +++ b/arch/arm/mach-aaec2000/Makefile @@ -3,7 +3,7 @@ # # Common support (must be linked before board specific support) -obj-y += core.o +obj-y += core.o clock.o # Specific board support obj-$(CONFIG_MACH_AAED2000) += aaed2000.o diff --git a/arch/arm/mach-aaec2000/clock.c b/arch/arm/mach-aaec2000/clock.c new file mode 100644 index 000000000000..99e019169dda --- /dev/null +++ b/arch/arm/mach-aaec2000/clock.c @@ -0,0 +1,110 @@ +/* + * linux/arch/arm/mach-aaec2000/clock.c + * + * Copyright (C) 2005 Nicolas Bellido Y Ortega + * + * Based on linux/arch/arm/mach-integrator/clock.c + * + * 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/list.h> +#include <linux/errno.h> +#include <linux/err.h> + +#include <asm/semaphore.h> +#include <asm/hardware/clock.h> + +#include "clock.h" + +static LIST_HEAD(clocks); +static DECLARE_MUTEX(clocks_sem); + +struct clk *clk_get(struct device *dev, const char *id) +{ + struct clk *p, *clk = ERR_PTR(-ENOENT); + + down(&clocks_sem); + list_for_each_entry(p, &clocks, node) { + if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { + clk = p; + break; + } + } + up(&clocks_sem); + + return clk; +} +EXPORT_SYMBOL(clk_get); + +void clk_put(struct clk *clk) +{ + module_put(clk->owner); +} +EXPORT_SYMBOL(clk_put); + +int clk_enable(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_disable); + +int clk_use(struct clk *clk) +{ + return 0; +} +EXPORT_SYMBOL(clk_use); + +void clk_unuse(struct clk *clk) +{ +} +EXPORT_SYMBOL(clk_unuse); + +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) +{ + return rate; +} +EXPORT_SYMBOL(clk_round_rate); + +int clk_set_rate(struct clk *clk, unsigned long rate) +{ + return 0; +} +EXPORT_SYMBOL(clk_set_rate); + +int clk_register(struct clk *clk) +{ + down(&clocks_sem); + list_add(&clk->node, &clocks); + up(&clocks_sem); + return 0; +} +EXPORT_SYMBOL(clk_register); + +void clk_unregister(struct clk *clk) +{ + down(&clocks_sem); + list_del(&clk->node); + up(&clocks_sem); +} +EXPORT_SYMBOL(clk_unregister); + +static int __init clk_init(void) +{ + return 0; +} +arch_initcall(clk_init); diff --git a/arch/arm/mach-aaec2000/clock.h b/arch/arm/mach-aaec2000/clock.h new file mode 100644 index 000000000000..d4bb74ff613f --- /dev/null +++ b/arch/arm/mach-aaec2000/clock.h @@ -0,0 +1,23 @@ +/* + * linux/arch/arm/mach-aaec2000/clock.h + * + * Copyright (C) 2005 Nicolas Bellido Y Ortega + * + * Based on linux/arch/arm/mach-integrator/clock.h + * + * 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. + */ +struct module; + +struct clk { + struct list_head node; + unsigned long rate; + struct module *owner; + const char *name; + void *data; +}; + +int clk_register(struct clk *clk); +void clk_unregister(struct clk *clk); |