gpio: zynq: Do PM initialization earlier to support gpio hogs

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GPIO hogs registration is call at the end of gpiochip_add() function.
Calling sequence is:
gpiochip_add -> of_gpiochip_add -> of_gpiochip_scan_hogs ->
gpiod_hog -> gpiochip_request_own_desc -> __gpiod_request ->
chip->request -> zynq_gpio_request which calls pm_runtime_get_sync()
which returns -13 because PM is not initialized yet.

Initialize PM before gpiochip_add is called to fix this issue.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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Michal Simek 2015-12-10 12:10:12 +01:00 • committed by Linus Walleij

parent 29ab875b7b

commit 3773c195d3

1 changed files with 9 additions and 10 deletions

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drivers/gpio/gpio-zynq.c

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