pinctrl: qcom: spmi-gpio: fix gpio-hog related boot issues

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When attempting to setup up a gpio hog, device probing would repeatedly
fail with -EPROBE_DEFERED errors. It was caused by a circular dependency
between the gpio and pinctrl frameworks. If the gpio-ranges property is
present in device tree, then the gpio framework will handle the gpio pin
registration and eliminate the circular dependency.

See Christian Lamparter's commit a86caa9ba5 ("pinctrl: msm: fix
gpio-hog related boot issues") for a detailed commit message that
explains the issue in much more detail. The code comment in this commit
came from Christian's commit.

Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Brian Masney 2018-10-31 20:11:47 -04:00 • committed by Linus Walleij

parent 78bf386daf

commit 149a960472

1 changed files with 17 additions and 4 deletions

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drivers/pinctrl/qcom/pinctrl-spmi-gpio.c

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