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authorAnton Vorontsov <cbouatmailru@gmail.com>2010-10-27 18:33:15 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-10-27 21:03:06 -0400
commitaeec56e331c6d2750de02ef34b305338305ca690 (patch)
tree1a9df159e4408cf1f4d9ab8451ae803de6007126 /README
parentd0f744c8cbd19a8d07eccb15bb08e6a29c4d5192 (diff)
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 <cbouatmailru@gmail.com> Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: David Brownell <david-b@pacbell.net> Cc: Samuel Ortiz <sameo@linux.intel.com>, Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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