diff options
| author | Laxman Dewangan <[email protected]> | 2012-02-17 20:26:22 +0530 |
|---|---|---|
| committer | Grant Likely <[email protected]> | 2012-03-05 07:49:44 -0700 |
| commit | 25553ff0756c59b617af6bdd280c94e943164184 (patch) | |
| tree | 6ca9ec045b5d2e10523fdf46facac59aa683f4ce /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace | |
| parent | aca5ce14eb773a75e5d935968b2e390dc5bd29c3 (diff) | |
gpio: gpiolib: Support for open source/emitter gpios
Adding support for the open source gpio on which client
can specify the open source property through GPIO flag
GPIOF_OPEN_SOURCE at the time of gpio request.
The open source pins are normally pulled low and it
cannot be driven to output with value of 0 and so
when client request for setting the pin to LOW, the
gpio will be set to input direction to make pin in tristate
and hence PULL-DOWN on pins will make the state to LOW.
The open source pin can be driven to HIGH by setting output
with value of 1.
Signed-off-by: Laxman Dewangan <[email protected]>
Reviwed-by: Mark Brown <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Signed-off-by: Grant Likely <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace')
0 files changed, 0 insertions, 0 deletions