8f3c4537bb
Rather than marking the mach/gpio.h header files which want to use the trivial GPIOLIB implementation, mark those which do not want to use it instead. This means that by default, you get the trivial implementation and only have to do something extra if you need to. This should encourage the use of the trivial default implementation. As an additional bonus, several gpio.h header files become empty. Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Tested-by: Jamie Iles <jamie@jamieiles.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
/*
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* arch/arm/include/asm/hardware/iop3xx-gpio.h
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*
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* IOP3xx GPIO wrappers
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*
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* Copyright (c) 2008 Arnaud Patard <arnaud.patard@rtp-net.org>
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* Based on IXP4XX gpio.h file
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
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#define __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
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#include <mach/hardware.h>
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#include <asm-generic/gpio.h>
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#define __ARM_GPIOLIB_COMPLEX
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#define IOP3XX_N_GPIOS 8
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static inline int gpio_get_value(unsigned gpio)
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{
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if (gpio > IOP3XX_N_GPIOS)
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return __gpio_get_value(gpio);
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return gpio_line_get(gpio);
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}
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static inline void gpio_set_value(unsigned gpio, int value)
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{
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if (gpio > IOP3XX_N_GPIOS) {
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__gpio_set_value(gpio, value);
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return;
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}
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gpio_line_set(gpio, value);
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}
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static inline int gpio_cansleep(unsigned gpio)
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{
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if (gpio < IOP3XX_N_GPIOS)
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return 0;
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else
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return __gpio_cansleep(gpio);
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}
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/*
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* The GPIOs are not generating any interrupt
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* Note : manuals are not clear about this
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*/
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static inline int gpio_to_irq(int gpio)
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{
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return -EINVAL;
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}
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static inline int irq_to_gpio(int gpio)
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{
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return -EINVAL;
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}
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#endif
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