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Diffstat (limited to 'arch/arm/mach-ns9xxx/gpio.c')
-rw-r--r--arch/arm/mach-ns9xxx/gpio.c147
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 5503ca09c4a..00000000000
--- 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);