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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2009-03-19 23:10:40 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2009-03-19 23:10:40 +0000 |
| commit | 7d83f8fca517b123cf0136503a9e50974f65ec49 (patch) | |
| tree | 92ed1faaf112e98e29a00efc99e1a4e6c79e6a8e /arch/arm/plat-orion/gpio.c | |
| parent | be093beb608edf821b45fe00a8a080fb5c6ed4af (diff) | |
| parent | 569106c70e49ad67c69fa7d43a2a5218e63a4619 (diff) | |
| download | talos-obmc-linux-7d83f8fca517b123cf0136503a9e50974f65ec49.tar.gz talos-obmc-linux-7d83f8fca517b123cf0136503a9e50974f65ec49.zip | |
Merge branch 'master' of git://git.marvell.com/orion into devel
Conflicts:
arch/arm/mach-mx1/devices.c
Diffstat (limited to 'arch/arm/plat-orion/gpio.c')
| -rw-r--r-- | arch/arm/plat-orion/gpio.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c index 0d12c2164766..32eb9e33bebb 100644 --- a/arch/arm/plat-orion/gpio.c +++ b/arch/arm/plat-orion/gpio.c @@ -19,7 +19,8 @@ static DEFINE_SPINLOCK(gpio_lock); static const char *gpio_label[GPIO_MAX]; /* non null for allocated GPIOs */ -static unsigned long gpio_valid[BITS_TO_LONGS(GPIO_MAX)]; +static unsigned long gpio_valid_input[BITS_TO_LONGS(GPIO_MAX)]; +static unsigned long gpio_valid_output[BITS_TO_LONGS(GPIO_MAX)]; static inline void __set_direction(unsigned pin, int input) { @@ -53,7 +54,7 @@ int gpio_direction_input(unsigned pin) { unsigned long flags; - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { + if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid_input)) { pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -83,7 +84,7 @@ int gpio_direction_output(unsigned pin, int value) unsigned long flags; u32 u; - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { + if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid_output)) { pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -161,7 +162,9 @@ int gpio_request(unsigned pin, const char *label) unsigned long flags; int ret; - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { + if (pin >= GPIO_MAX || + !(test_bit(pin, gpio_valid_input) || + test_bit(pin, gpio_valid_output))) { pr_debug("%s: invalid GPIO %d\n", __func__, pin); return -EINVAL; } @@ -183,7 +186,9 @@ EXPORT_SYMBOL(gpio_request); void gpio_free(unsigned pin) { - if (pin >= GPIO_MAX || !test_bit(pin, gpio_valid)) { + if (pin >= GPIO_MAX || + !(test_bit(pin, gpio_valid_input) || + test_bit(pin, gpio_valid_output))) { pr_debug("%s: invalid GPIO %d\n", __func__, pin); return; } @@ -208,12 +213,18 @@ void __init orion_gpio_set_unused(unsigned pin) __set_direction(pin, 0); } -void __init orion_gpio_set_valid(unsigned pin, int valid) +void __init orion_gpio_set_valid(unsigned pin, int mode) { - if (valid) - __set_bit(pin, gpio_valid); + if (mode == 1) + mode = GPIO_INPUT_OK | GPIO_OUTPUT_OK; + if (mode & GPIO_INPUT_OK) + __set_bit(pin, gpio_valid_input); else - __clear_bit(pin, gpio_valid); + __clear_bit(pin, gpio_valid_input); + if (mode & GPIO_OUTPUT_OK) + __set_bit(pin, gpio_valid_output); + else + __clear_bit(pin, gpio_valid_output); } void orion_gpio_set_blink(unsigned pin, int blink) |
