Re: [PATCH 2/4] [POWERPC] Implement support for the GPIO LIB API
flat view
From: Laurent Pinchart <hidden>
Date: 2008-04-03 11:05:56
Hi Anton, On Tuesday 11 March 2008 19:42, Anton Vorontsov wrote:
This patch implements support for the GPIO LIB API. Two calls unimplemented though: irq_to_gpio and gpio_to_irq. Signed-off-by: Anton Vorontsov <redacted> --- Documentation/powerpc/booting-without-of.txt | 52 ++++++++++++++++++++++++ arch/powerpc/Kconfig | 5 ++ include/asm-powerpc/gpio.h | 55 ++++++++++++++++++++++++++ 3 files changed, 112 insertions(+), 0 deletions(-) create mode 100644 include/asm-powerpc/gpio.h
[snip]
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diff --git a/include/asm-powerpc/gpio.h b/include/asm-powerpc/gpio.h new file mode 100644 index 0000000..057840d --- /dev/null +++ b/include/asm-powerpc/gpio.h@@ -0,0 +1,55 @@ +/* + * Generic GPIO API implementation for PowerPC. + * + * Copyright (c) 2007-2008 MontaVista Software, Inc. + * + * Author: Anton Vorontsov <avorontsov@ru.mvista.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef __ASM_POWERPC_GPIO_H +#define __ASM_POWERPC_GPIO_H + +#include <asm-generic/gpio.h> + +#ifdef CONFIG_HAVE_GPIO_LIB + +/* + * We don't (yet) implement inlined/rapid versions for on-chip gpios. + * Just call gpiolib. + */ +static inline int gpio_get_value(unsigned int gpio) +{ + return __gpio_get_value(gpio); +} + +static inline void gpio_set_value(unsigned int gpio, int value) +{ + __gpio_set_value(gpio, value); +} + +static inline int gpio_cansleep(unsigned int gpio) +{ + return __gpio_cansleep(gpio); +} + +/* + * Not implemented, yet. + */ +static inline int gpio_to_irq(unsigned int gpio) +{ + return -ENOSYS; +} + +static inline int irq_to_gpio(unsigned int irq) +{ + return -EINVAL; +}
You should include <linux/errno.h>.
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+#endif /* CONFIG_HAVE_GPIO_LIB */ + +#endif /* __ASM_POWERPC_GPIO_H */
Best regards, -- Laurent Pinchart CSE Semaphore Belgium Chaussée de Bruxelles, 732A B-1410 Waterloo Belgium T +32 (2) 387 42 59 F +32 (2) 387 42 75
Attachments
- (unnamed) [application/pgp-signature] 189 bytes