23:43 <dossalab> hi all, I have a question about VOP on RK3188. My issue is that VOP1 works (I can see activity on RGB lines) and VOP0 doesn't - even though I'm using the exact same configuration pattern. I'm suspecting that either pinctrl config is bad (but does VOP0 even need pin configuration? it looks like it's just hardwired) or I don't have correct LDO enabled (it's a board from an old tabled, so no schematics). I'm using rk3188-bqedison2qc device tree as

23:43 <dossalab> a reference. I also assume that VOP0 is tied to LCDC0 and VOP1 is tied to LCDC1 , even though I can't test this assumption

23:48 <dossalab> Here are some parts of the device tree and some logs from the kernel https://pastebin.com/MWQyt6wF