diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 15:15:27 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-05-23 15:15:27 -0700 |
commit | 42cd71bf1e3a081b3150018bbf448cb6c8a844a5 (patch) | |
tree | 4a5d2eb0444255e4ad827a76dbd1417dd3876db6 /arch/arm/mach-ns9xxx/gpio.c | |
parent | f5039935ac685b3b9b8c13fbc33cac8643dee32e (diff) | |
parent | 9a55d9752d8abfc62f1ab05ccc790d22a0c8e7c0 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (137 commits)
ARM: bcmring: convert to use sp804 clockevents
ARM: bcmring: convert to sp804 clocksource
ARM: 6912/1: bcmring: Add clkdev table in init_early
clockevents: ARM sp804: obtain sp804 timer rate via clks
clockevents: ARM sp804: allow clockevent name to be specified
clocksource: ARM sp804: obtain sp804 timer rate via clks
clocksource: ARM sp804: allow clocksource name to be specified
clocksource: convert OMAP1 to 32-bit down counting clocksource
clocksource: convert MXS timrotv2 to 32-bit down counting clocksource
clocksource: convert SPEAr platforms 16-bit up counting clocksource
clocksource: convert Integrator/AP 16-bit down counting clocksource
clocksource: convert W90x900 24-bit down counting clocksource
clocksource: convert ARM 32-bit down counting clocksources
clocksource: convert ARM 32-bit up counting clocksources
clocksource: add common mmio clocksource
ARM: update sa1100 to reflect PXA updates
ARM: omap1: convert to using readl/writel instead of volatile struct
ARM: omap1: delete useless interrupt handler
ARM: s5p: consolidate selection of timer register
ARM: 6939/1: fix missing 'cpu_relax()' declaration
...
Diffstat (limited to 'arch/arm/mach-ns9xxx/gpio.c')
-rw-r--r-- | arch/arm/mach-ns9xxx/gpio.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/arch/arm/mach-ns9xxx/gpio.c b/arch/arm/mach-ns9xxx/gpio.c deleted file mode 100644 index 5503ca09c4ae..000000000000 --- a/arch/arm/mach-ns9xxx/gpio.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * arch/arm/mach-ns9xxx/gpio.c - * - * Copyright (C) 2006,2007 by Digi International Inc. - * All rights reserved. - * - * 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/kernel.h> -#include <linux/compiler.h> -#include <linux/init.h> -#include <linux/spinlock.h> -#include <linux/module.h> -#include <linux/bitops.h> - -#include <mach/gpio.h> -#include <mach/processor.h> -#include <mach/processor-ns9360.h> -#include <asm/bug.h> -#include <asm/types.h> - -#include "gpio-ns9360.h" - -#if defined(CONFIG_PROCESSOR_NS9360) -#define GPIO_MAX 72 -#elif defined(CONFIG_PROCESSOR_NS9750) -#define GPIO_MAX 49 -#endif - -/* protects BBU_GCONFx and BBU_GCTRLx */ -static spinlock_t gpio_lock = __SPIN_LOCK_UNLOCKED(gpio_lock); - -/* only access gpiores with atomic ops */ -static DECLARE_BITMAP(gpiores, GPIO_MAX + 1); - -static inline int ns9xxx_valid_gpio(unsigned gpio) -{ -#if defined(CONFIG_PROCESSOR_NS9360) - if (processor_is_ns9360()) - return gpio <= 72; - else -#endif -#if defined(CONFIG_PROCESSOR_NS9750) - if (processor_is_ns9750()) - return gpio <= 49; - else -#endif - { - BUG(); - return 0; - } -} - -int gpio_request(unsigned gpio, const char *label) -{ - if (likely(ns9xxx_valid_gpio(gpio))) - return test_and_set_bit(gpio, gpiores) ? -EBUSY : 0; - else - return -EINVAL; -} -EXPORT_SYMBOL(gpio_request); - -void gpio_free(unsigned gpio) -{ - might_sleep(); - clear_bit(gpio, gpiores); - return; -} -EXPORT_SYMBOL(gpio_free); - -int gpio_direction_input(unsigned gpio) -{ - if (likely(ns9xxx_valid_gpio(gpio))) { - int ret = -EINVAL; - unsigned long flags; - - spin_lock_irqsave(&gpio_lock, flags); -#if defined(CONFIG_PROCESSOR_NS9360) - if (processor_is_ns9360()) - ret = __ns9360_gpio_configure(gpio, 0, 0, 3); - else -#endif - BUG(); - - spin_unlock_irqrestore(&gpio_lock, flags); - - return ret; - - } else - return -EINVAL; -} -EXPORT_SYMBOL(gpio_direction_input); - -int gpio_direction_output(unsigned gpio, int value) -{ - if (likely(ns9xxx_valid_gpio(gpio))) { - int ret = -EINVAL; - unsigned long flags; - - gpio_set_value(gpio, value); - - spin_lock_irqsave(&gpio_lock, flags); -#if defined(CONFIG_PROCESSOR_NS9360) - if (processor_is_ns9360()) - ret = __ns9360_gpio_configure(gpio, 1, 0, 3); - else -#endif - BUG(); - - spin_unlock_irqrestore(&gpio_lock, flags); - - return ret; - } else - return -EINVAL; -} -EXPORT_SYMBOL(gpio_direction_output); - -int gpio_get_value(unsigned gpio) -{ -#if defined(CONFIG_PROCESSOR_NS9360) - if (processor_is_ns9360()) - return ns9360_gpio_get_value(gpio); - else -#endif - { - BUG(); - return -EINVAL; - } -} -EXPORT_SYMBOL(gpio_get_value); - -void gpio_set_value(unsigned gpio, int value) -{ - unsigned long flags; - spin_lock_irqsave(&gpio_lock, flags); -#if defined(CONFIG_PROCESSOR_NS9360) - if (processor_is_ns9360()) - ns9360_gpio_set_value(gpio, value); - else -#endif - BUG(); - - spin_unlock_irqrestore(&gpio_lock, flags); -} -EXPORT_SYMBOL(gpio_set_value); |