linux

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Phil Elwell 266423e60e pinctrl: bcm2835: Change init order for gpio hogs

...and gpio-ranges

pinctrl-bcm2835 is a combined pinctrl/gpio driver. Currently the gpio
side is registered first, but this breaks gpio hogs (which are
configured during gpiochip_add_data). Part of the hog initialisation
is a call to pinctrl_gpio_request, and since the pinctrl driver hasn't
yet been registered this results in an -EPROBE_DEFER from which it can
never recover.

Change the initialisation sequence to register the pinctrl driver
first.

This also solves a similar problem with the gpio-ranges property, which
is required in order for released pins to be returned to inputs.

Fixes: 73345a18d464b ("pinctrl: bcm2835: Pass irqchip when adding gpiochip")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20211206092237.4105895-2-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2021-12-10 00:23:29 +01:00

Kconfig

pinctrl: bcm2835: Allow building driver as a module

2021-10-25 00:54:21 +02:00

Makefile

pinctrl: add a pincontrol driver for BCM6318

2021-03-29 12:20:09 +02:00

pinctrl-bcm63xx.c

pinctrl: bcm: add bcm63xx base code

2021-03-29 12:20:07 +02:00

pinctrl-bcm63xx.h

pinctrl: bcm: Constify static pinmux_ops