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| author |   Linus Walleij <linus.walleij@linaro.org> | 2016-03-22 10:51:16 +0100 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2016-04-05 16:57:15 +0200 |
| commit | c663e5f56737757db4d0b317c510ab505f93cecb (patch) | |
| tree | fbccce2fb9c115fc5f42869cae744dcbc816ea9c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | gpio: tpic2810: Make sure cached buffer has consistent status with h/w status (diff) | |
| download | linux-dev-c663e5f56737757db4d0b317c510ab505f93cecb.tar.xz linux-dev-c663e5f56737757db4d0b317c510ab505f93cecb.zip | |
gpio: support native single-ended hardware drivers
Some GPIO controllers has a special hardware bit we can flip
to support open drain / source. This means that on these hardwares
we do not need to emulate OD/OS by setting the line to input
instead of actively driving it high/low. Add an optional vtable
callback to the driver set_single_ended() so that driver can
implement this in hardware if they have it.
We may need a pinctrl_gpio_set_config() call at some point to
propagate this down to a backing pin control device on systems
with split GPIO/pin control.
Reported-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions