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author | Christian Lamparter <chunkeey@gmail.com> | 2021-08-05 15:29:25 +0200 |
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committer | Christian Lamparter <chunkeey@gmail.com> | 2021-11-05 21:24:04 +0100 |
commit | 6fe4b7aa2b00b4e93871454e6a6fc41eb192c784 (patch) | |
tree | 5893205c17c8c9f97a8428532730a277f7cb36ed /target/linux/layerscape | |
parent | 4607f55439c2a03154f71ba9d366cff8f52443d2 (diff) | |
download | upstream-6fe4b7aa2b00b4e93871454e6a6fc41eb192c784.tar.gz upstream-6fe4b7aa2b00b4e93871454e6a6fc41eb192c784.tar.bz2 upstream-6fe4b7aa2b00b4e93871454e6a6fc41eb192c784.zip |
gpio-button-hotplug: convert to gpio descriptor (gpiod_) API
OpenWrt's special gpio-button-hotplug driver is still using
exclusively the legacy GPIO Subsystem gpio_ API.
While it still does work fine for most devices, upstream
linux is starting to convert platform support like that of
the APU2/3/4 to the new GPIOD LOOKUP tables that are not
supported by it.
Hence, this patch replaces the gpio_ calls present in
gpio-button-hotplug with gpiod_ equivalent wherever
it's possible. This allows the driver to use the
gpiod lookup tables and still have a fallback for
legacy platform data code that just sets button->gpio
set to the real button/switch GPIO.
As a bonus: the active_low logic is now being handled
by the linux's gpio subsystem too. Another issue that
was address is the of_handle leak in the dt parser
error path.
Tested with legacy platform data: x86_64: APU2, MX-100
Tested on OF: ATH79; MR18, APM821xx: Netgear WNDR4700,
RAMIPS: WL-330N3G
LANTIQ: AVM FritzBox 7360v1
Reported-by: Chris Blake <chrisrblake93@gmail.com>
Tested-by: Chris Blake <chrisrblake93@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
(cherry picked from commit 2b0378cf9f3163bac29fa9946b3aa1607fc03802)
Diffstat (limited to 'target/linux/layerscape')
0 files changed, 0 insertions, 0 deletions