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author | Anton Vorontsov <cbouatmailru@gmail.com> | 2010-10-27 15:33:15 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:03:06 -0700 |
commit | aeec56e331c6d2750de02ef34b305338305ca690 (patch) | |
tree | 1a9df159e4408cf1f4d9ab8451ae803de6007126 /kernel/trace/ftrace.c | |
parent | d0f744c8cbd19a8d07eccb15bb08e6a29c4d5192 (diff) | |
download | blackbird-op-linux-aeec56e331c6d2750de02ef34b305338305ca690.tar.gz blackbird-op-linux-aeec56e331c6d2750de02ef34b305338305ca690.zip |
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>
Diffstat (limited to 'kernel/trace/ftrace.c')
0 files changed, 0 insertions, 0 deletions