On 3/9/2022 11:43 AM, Stefan Wahren wrote:
This patch series tries to provide backward compatibility for DTB which
lacks the gpio-ranges property.
The commit ("pinctrl: msm: fix gpio-hog related boot issues") by Christian
Lamparter already contains a fallback in case the gpio-ranges property
is missing. But this approach doesn't work on BCM2835 with a gpio-hog
defined for the SoC GPIOs.
Based Christian's on explanation i conclude that the fallback must happen
during the gpiochip_add() call and not afterwards. So the approach is to
call an optional hook, which can be implemented in the platform driver.
This series has been tested on Raspberry Pi 3 B Plus.
For both patches, with and without 'gpio-ranges' for pinctrl-bcm2835.c:
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Tested-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Thanks a lot Stefan!
--
Florian
