Hi, On Fri, Oct 27, 2017 at 12:04:32AM +0200, Merlijn Wajer wrote: > On 26/10/17 23:56, Sebastian Reichel wrote: >>> [...] >> This smells like -EPROBE_DEFER in "panel-dsi-cm". Check the dyndbg >> entries in this presentation to see how to debug the issue: >> >> https://elinux.org/images/8/83/Plumbers_2016_dt_device_tree_tools.pdf >> >> Looking at the log it might be the backlight. Do you have an entry >> in /sys/class/backlight? > > Nothing in /sys/class/backlight/ - there are also no modules loaded that > match the pattern 'back' (lsmod | grep back). ok, this is probably an autoloading issue. I currently compile static kernels (everything builtin), since that is easier for my development workflow. (So I did not test this). You should be able to get backlight by modprobing the backlight driver (modprobe ti-lmu-backlight). For now I suggest to enable BACKLIGHT_TI_LMU=y (you need to enable some dependencies for that). I will have a look at this before I send the next revision of the backlight support. > [...] -- Sebastian
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