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Commit 2acde902 authored by Michael Hennerich's avatar Michael Hennerich Committed by Bryan Wu
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Blackfin arch: a few things still use bfin_read_PORT_FER() 



 - Update gpio_request to allow multiple request with the same signature (label)
 - Use generic GPIO API where applicable
 - Update generic board support form stamp board

Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
parent 55249e9e

arch/blackfin/kernel/bfin_gpio.c

+15 −0
Original line number Diff line number Diff line
@@ -930,6 +930,8 @@ void peripheral_free(unsigned short per) 


	reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident);



	set_label(ident, "free");



	local_irq_restore(flags);

}

EXPORT_SYMBOL(peripheral_free);
@@ -969,6 +971,17 @@ int gpio_request(unsigned short gpio, const char *label) 


	local_irq_save(flags);



	/*

	 * Allow that the identical GPIO can

	 * be requested from the same driver twice

	 * Do nothing and return -

	 */



	if (cmp_label(gpio, label) == 0) {

		local_irq_restore(flags);

		return 0;

	}



	if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) {

		printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved by %s !\n",

			 gpio, get_label(gpio));
@@ -1016,6 +1029,8 @@ void gpio_free(unsigned short gpio) 


	reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio);



	set_label(gpio, "free");



	local_irq_restore(flags);

}

EXPORT_SYMBOL(gpio_free);