Hi YH,
Am Dienstag, den 03.11.2015, 16:11 +0800 schrieb YH Huang:
quoted
The reasoning is that devices where there is no phandle link pointing to
the backlight (for example from a simple-panel node), we should keep the
current default behaviour (enable during probe).
I have a little problem for the current default behaviour.
Should we enable during probe?
Here I mean enabling the backlight (at the end of the probe function),
not enabling the GPIO already when requesting it.
Before this patch ( http://patchwork.ozlabs.org/patch/324690/ ),
we disable "enable-gpio" in the probe function.
While before this patch the GPIO would be initialized in the disabled
state, the call to backlight_update_status at the end of the probe
function would still enable the backlight afterwards.
regards
Philipp