From aeec56e331c6d2750de02ef34b305338305ca690 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Wed, 27 Oct 2010 15:33:15 -0700 Subject: gpio: add driver for basic memory-mapped GPIO controllers The basic GPIO controllers may be found in various on-board FPGA and ASIC solutions that are used to control board's switches, LEDs, chip-selects, Ethernet/USB PHY power, etc. These controllers may not provide any means of pin setup (in/out/open drain). The driver supports: - 8/16/32/64 bits registers; - GPIO controllers with clear/set registers; - GPIO controllers with a single "data" register; - Big endian bits/GPIOs ordering (mostly used on PowerPC). Signed-off-by: Anton Vorontsov Reviewed-by: Mark Brown Cc: David Brownell Cc: Samuel Ortiz , Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/basic_mmio_gpio.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 include/linux/basic_mmio_gpio.h (limited to 'include/linux/basic_mmio_gpio.h') diff --git a/include/linux/basic_mmio_gpio.h b/include/linux/basic_mmio_gpio.h new file mode 100644 index 000000000000..198087a16fc4 --- /dev/null +++ b/include/linux/basic_mmio_gpio.h @@ -0,0 +1,20 @@ +/* + * Basic memory-mapped GPIO controllers. + * + * Copyright 2008 MontaVista Software, Inc. + * Copyright 2008,2010 Anton Vorontsov + * + * 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 __BASIC_MMIO_GPIO_H +#define __BASIC_MMIO_GPIO_H + +struct bgpio_pdata { + int base; +}; + +#endif /* __BASIC_MMIO_GPIO_H */ -- cgit v1.2.3