Tackle two problems with the pinctrl-bcm2835 driver and its Device Tree
configuration:
1. The pinctrl-bcm2835 driver 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).
2. Since [1], a "gpio-ranges" property is required in order for pins
to be returned to inputs when freed. Note that without patch 1, the
device never gets out of EPROBE_DEFER.
Note that the Fixes: tags are little more than hooks to hang the back-ports
on - no blame is intended.
[1] commit 2ab73c6d8323 ("gpio: Support GPIO controllers without
pin-ranges")
Phil Elwell (2):
pinctrl: bcm2835: Change init order for gpio hogs
ARM: dts: gpio-ranges property is now required
arch/arm/boot/dts/bcm2711.dtsi | 2 ++
arch/arm/boot/dts/bcm283x.dtsi | 2 ++
drivers/pinctrl/bcm/pinctrl-bcm2835.c | 29 +++++++++++++++------------
3 files changed, 20 insertions(+), 13 deletions(-)
--
2.25.1
