fix pinctrl errors on Raspberry Pi 4 (!1336) · Merge requests · Red Hat / centos-stream / src / kernel / centos-stream-9

Adrien Thierry requested to merge athierry1/centos-stream-9:bz-2124693-pinctrl-error-rpi4 into main Sep 06, 2022

Bugzilla: https://bugzilla.redhat.com/2124693

Tested: on a RPi4 running:
- Fedora aarch64 image with uboot and downsteam DT
- RHIVOS kernel

Fix "pinctrl-bcm2835 fe200000.gpio: could not add GPIO chip" error that
occurs on Raspberry Pi 4 and prevents UART and WiFi from working.

This happens with the downstream device tree because it now uses the `gpio-ranges` property.

Signed-off-by: Adrien Thierry <athierry@redhat.com>

Edited Sep 20, 2022 by Adrien Thierry

fix pinctrl errors on Raspberry Pi 4

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