mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-02 23:27:06 +00:00
gpio: tegra: Move driver registration to subsys_init level
[ Upstream commit 40b25bce0a
]
There is a bug in regards to deferred probing within the drivers core
that causes GPIO-driver to suspend after its users. The bug appears if
GPIO-driver probe is getting deferred, which happens after introducing
dependency on PINCTRL-driver for the GPIO-driver by defining "gpio-ranges"
property in device-tree. The bug in the drivers core is old (more than 4
years now) and is well known, unfortunately there is no easy fix for it.
The good news is that we can workaround the deferred probe issue by
changing GPIO / PINCTRL drivers registration order and hence by moving
PINCTRL driver registration to the arch_init level and GPIO to the
subsys_init.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
parent
b5c98d8ca8
commit
d94bf3a409
1 changed files with 1 additions and 1 deletions
|
@ -723,4 +723,4 @@ static int __init tegra_gpio_init(void)
|
|||
{
|
||||
return platform_driver_register(&tegra_gpio_driver);
|
||||
}
|
||||
postcore_initcall(tegra_gpio_init);
|
||||
subsys_initcall(tegra_gpio_init);
|
||||
|
|
Loading…
Reference in a new issue