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author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-12-07 16:20:18 +0000 |
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committer | Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2019-12-11 10:44:31 +0100 |
commit | 256efaea1fdc4e38970489197409a26125ee0aaa (patch) | |
tree | b627c8c66e5fe3d2eacfe8f92f1b493e484bca9d /drivers/gpio/gpio-pca953x.c | |
parent | 44fe5cb32c7599a4059931a98794e0418619aa96 (diff) | |
download | linux-256efaea1fdc4e38970489197409a26125ee0aaa.tar.gz |
gpiolib: fix up emulated open drain outputs
gpiolib has a corner case with open drain outputs that are emulated. When such outputs are outputting a logic 1, emulation will set the hardware to input mode, which will cause gpiod_get_direction() to report that it is in input mode. This is different from the behaviour with a true open-drain output. Unify the semantics here. Cc: <stable@vger.kernel.org> Suggested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Diffstat (limited to 'drivers/gpio/gpio-pca953x.c')
0 files changed, 0 insertions, 0 deletions