5.15-rc2 panics on boot on RK3288 veyron speedy, seems related to rockchip pinctrl / gpio split

[Heiko Stuebner]

Hi,

Am Sonntag, 26. September 2021, 13:57:33 CEST schrieb Urja Rannikko:
> A boot log of this is attached. I can say that this happens on
> 5.15-rc2 but not on 5.14.7.
> 
> Based on the log and some reading of the code my diagnosis is that
> rockchip_pinctrl_probe (via rockchip_pinctrl_register and after that
> the pinctrl core register calls) ends up trying to apply the
> configuration and accesses a null bank->gpio_chip (i think at
> drivers/pinctrl/pinctrl-rockchip.c:2139)
> before the gpio is "populated" / probed a couple of lines later in
> rockchip_pinctrl_probe (line 2710 onwards).
> 
> What I don't know is how this is supposed to work and/or how to
> properly fix it, so that's why I'm sending this bug report instead.
> 
> I'm sending this to the people who last touched the rockchip pinctrl
> (and gpio), because that's where this log points me to.

See
https://lore.kernel.org/all/20210913224926.1260726-1-heiko@sntech.de/

Heiko