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author | John W. Linville <linville@tuxdriver.com> | 2010-04-08 13:34:54 -0400 |
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committer | John W. Linville <linville@tuxdriver.com> | 2010-04-08 13:34:54 -0400 |
commit | 0f2df9eac70423838a1f8d410fd3899ddd88317b (patch) | |
tree | 0617f723320d83eca5cef9c964c001014e74213f /arch/arm/mach-nuc93x/clock.c | |
parent | 8c11e4ab09ffb975a89802dde0e9aa52a53b8aa5 (diff) | |
parent | 1144601118507f8b3b676a9a392584d216d3f2cc (diff) | |
download | linux-0f2df9eac70423838a1f8d410fd3899ddd88317b.tar.gz linux-0f2df9eac70423838a1f8d410fd3899ddd88317b.tar.bz2 linux-0f2df9eac70423838a1f8d410fd3899ddd88317b.zip |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into merge
Conflicts:
Documentation/feature-removal-schedule.txt
drivers/net/wireless/ath/ath5k/phy.c
drivers/net/wireless/iwlwifi/iwl-4965.c
drivers/net/wireless/iwlwifi/iwl-agn.c
drivers/net/wireless/iwlwifi/iwl-core.c
drivers/net/wireless/iwlwifi/iwl-core.h
drivers/net/wireless/iwlwifi/iwl-tx.c
Diffstat (limited to 'arch/arm/mach-nuc93x/clock.c')
-rw-r--r-- | arch/arm/mach-nuc93x/clock.c | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/arch/arm/mach-nuc93x/clock.c b/arch/arm/mach-nuc93x/clock.c new file mode 100644 index 000000000000..0521efbc48c9 --- /dev/null +++ b/arch/arm/mach-nuc93x/clock.c @@ -0,0 +1,83 @@ +/* + * linux/arch/arm/mach-nuc93x/clock.c + * + * Copyright (c) 2008 Nuvoton technology corporation + * + * Wan ZongShun <mcuos.com@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/list.h> +#include <linux/errno.h> +#include <linux/err.h> +#include <linux/string.h> +#include <linux/clk.h> +#include <linux/spinlock.h> +#include <linux/platform_device.h> +#include <linux/io.h> + +#include <mach/hardware.h> + +#include "clock.h" + +static DEFINE_SPINLOCK(clocks_lock); + +int clk_enable(struct clk *clk) +{ + unsigned long flags; + + spin_lock_irqsave(&clocks_lock, flags); + if (clk->enabled++ == 0) + (clk->enable)(clk, 1); + spin_unlock_irqrestore(&clocks_lock, flags); + + return 0; +} +EXPORT_SYMBOL(clk_enable); + +void clk_disable(struct clk *clk) +{ + unsigned long flags; + + WARN_ON(clk->enabled == 0); + + spin_lock_irqsave(&clocks_lock, flags); + if (--clk->enabled == 0) + (clk->enable)(clk, 0); + spin_unlock_irqrestore(&clocks_lock, flags); +} +EXPORT_SYMBOL(clk_disable); + +unsigned long clk_get_rate(struct clk *clk) +{ + return 27000000; +} +EXPORT_SYMBOL(clk_get_rate); + +void nuc93x_clk_enable(struct clk *clk, int enable) +{ + unsigned int clocks = clk->cken; + unsigned long clken; + + clken = __raw_readl(NUC93X_VA_CLKPWR); + + if (enable) + clken |= clocks; + else + clken &= ~clocks; + + __raw_writel(clken, NUC93X_VA_CLKPWR); +} + +void clks_register(struct clk_lookup *clks, size_t num) +{ + int i; + + for (i = 0; i < num; i++) + clkdev_add(&clks[i]); +} |