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author | Théo Lebrun <theo.lebrun@bootlin.com> | 2024-02-28 12:28:23 +0100 |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2024-02-29 10:38:31 +0100 |
commit | 6ad679cfaeea9291e9dce3247e34656080fc1d29 (patch) | |
tree | 0e47b9c322e0b0642881560e036355bc8e055442 /lib/kunit/try-catch.c | |
parent | 3c30cc26df0a3fc50b1f3fe4fd3a9b19a1704d95 (diff) | |
download | linux-stable-6ad679cfaeea9291e9dce3247e34656080fc1d29.tar.gz linux-stable-6ad679cfaeea9291e9dce3247e34656080fc1d29.tar.bz2 linux-stable-6ad679cfaeea9291e9dce3247e34656080fc1d29.zip |
gpio: nomadik: grab optional reset control and deassert it at probe
Fetch a reference to the optional shared reset control and deassert it
if it exists.
Optional because not all platforms that use this driver have a reset
attached to the reset block. Shared because some platforms that use the
reset (at least Mobileye EyeQ5) share the reset across banks.
Do not keep a reference to the reset control as it is not needed
afterwards; the driver does not handle suspend, does not use runtime
PM, does not register a remove callback and does not support unbinding
from sysfs (made explicit with suppress_bind_attrs).
The operation is done in nmk_gpio_populate_chip(). This function is
called by either gpio-nomadik or pinctrl-nomadik, whoever comes first.
This is here for historic reasons and could probably be removed now; it
seems gpio-ranges enforces the ordering to be pinctrl-first. It is not
the topic of the present patch however.
Signed-off-by: Théo Lebrun <theo.lebrun@bootlin.com>
Link: https://lore.kernel.org/r/20240228-mbly-gpio-v2-25-3ba757474006@bootlin.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'lib/kunit/try-catch.c')
0 files changed, 0 insertions, 0 deletions