* Tony Lindgren <tony@xxxxxxxxxxx> [170126 07:08]: > * Jarkko Nikula <jarkko.nikula@xxxxxxxxxx> [170126 00:47]: > > On Thu, Jan 26, 2017 at 09:39:52AM +0200, Tomi Valkeinen wrote: > > > On 25/01/17 19:50, Tony Lindgren wrote: > > > > > > >>> The LCD just stays blank with backlight off as soon as I load > > > >>> panel_sony_acx565akm. > > > >> > > > >> Can you share the kernel logs for both boards? I don't have neither > > > >> board, so I probably can't help too much here. > > > > > > > > Below are the relevant parts for both devices using v4.10-rc5. > > > > > > The logs look quite similar, and I don't see anything wrong there. > > > > > > Jarkko, you sent a patch for N900's panel a while ago, do you have the > > > LCD working with omapdrm? > > > > > Yes I have but after probing the panel there has to do blank-unblank > > cycle and I think setting the blacklight level too. I was going to check > > it when that regression happened but didn't find time to do it yet. > > I've tried these too, no luck. Maybe I'm using the wrong sequence. > > Could it be that some of the GPIOs get toggled the wrong way around? Sorry Jarkko, you're right. This gets it working: # modprobe tsc2005 # modprobe panel_sony_acx565akm # modprobe omapdrm # echo 255 > /sys/class/backlight/acx565akm/brightness # echo 0 > /sys/class/graphics/fb0/blank # echo 1 > /sys/class/graphics/fb0/blank # echo 0 > /sys/class/graphics/fb0/blank That extra blank/unblank cycle seems a bit user unfriendly? Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
