Re: [PATCH V7 2/2] drm/panel: Add Sitronix ST7701 panel driver

From: Sam Ravnborg
Date: Sat Jan 12 2019 - 11:53:37 EST


Hi Jagan.

> When did .unprepare and .disable are actually called? I turn-off the
> backlight by echo 1 > /sys/class/backlight/backlight/bl_power and even
> power of the board I assume the video transmission stop so it would
> ended-up calling these, but I couldn't see prints. does it the same
> time uart dead or something? do you have any inputs on sanity testing
> of typical panels, if yes please share.

Sorry, I do not rememebr the details to help you here.
Maybe module unload and then manipulating the panel in /sys/ would
do the trick.

Sam