[PATCH v2 1/2] pinctrl: bcm2835: Change init order for gpio hogs

Florian Fainelli f.fainelli at gmail.com
Tue Dec 7 10:32:39 PST 2021

On 12/6/21 1:22 AM, Phil Elwell wrote:
> ...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 at raspberrypi.com>

Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>

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