e0f7ad5f4f
The GPIO API is supposed to return 0 or a negative error code, but the SSB GPIO functions return the bitmask of the GPIO register. Fix this by ignoring the bitmask and always returning 0. The SSB GPIO functions can't fail. Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
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*/
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#ifndef __BCM47XX_GPIO_H
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#define __BCM47XX_GPIO_H
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#include <linux/ssb/ssb_embedded.h>
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#include <asm/mach-bcm47xx/bcm47xx.h>
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#define BCM47XX_EXTIF_GPIO_LINES 5
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#define BCM47XX_CHIPCO_GPIO_LINES 16
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extern int gpio_request(unsigned gpio, const char *label);
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extern void gpio_free(unsigned gpio);
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extern int gpio_to_irq(unsigned gpio);
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static inline int gpio_get_value(unsigned gpio)
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{
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return ssb_gpio_in(&ssb_bcm47xx, 1 << 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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ssb_gpio_out(&ssb_bcm47xx, 1 << gpio, value ? 1 << gpio : 0);
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}
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static inline int gpio_direction_input(unsigned gpio)
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{
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ssb_gpio_outen(&ssb_bcm47xx, 1 << gpio, 0);
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return 0;
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}
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static inline int gpio_direction_output(unsigned gpio, int value)
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{
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ssb_gpio_outen(&ssb_bcm47xx, 1 << gpio, 1 << gpio);
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return 0;
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}
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static inline int gpio_intmask(unsigned gpio, int value)
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{
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ssb_gpio_intmask(&ssb_bcm47xx, 1 << gpio,
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value ? 1 << gpio : 0);
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return 0;
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}
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static inline int gpio_polarity(unsigned gpio, int value)
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{
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ssb_gpio_polarity(&ssb_bcm47xx, 1 << gpio,
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value ? 1 << gpio : 0);
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return 0;
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}
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/* cansleep wrappers */
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#include <asm-generic/gpio.h>
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#endif /* __BCM47XX_GPIO_H */
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