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7ca497be00
Marking the whole controller as sleeping due to the pinctrl calls in the
.direction_{input,output} callbacks has the unfortunate side effect that
legitimate invocations of .get and .set, which cannot themselves sleep,
in atomic context now spew WARN()s from gpiolib.
However, as Heiko points out, the driver doing this is a bit silly to
begin with, as the pinctrl .gpio_set_direction hook doesn't even care
about the direction, the hook is only used to claim the mux. And sure
enough, the .gpio_request_enable hook exists to serve this very purpose,
so switch to that and remove the problematic business entirely.
Cc: stable@vger.kernel.org
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