13:08 <z3ntu> Hi! I need some advice bringing up mdss on the Milos SoC. It's DPU v10.2 ("dpu hardware revision:0xa0020000"). I think I've got most of the DPU config relatively correct, but I'm hitting errors when trying it out

13:08 <z3ntu> [ 0.641698] [drm:dpu_encoder_frame_done_timeout:2715] [dpu error]enc33 frame done timeout

13:08 <z3ntu> [ 0.645756] [drm:_dpu_encoder_phys_cmd_handle_ppdone_timeout.isra.0] *ERROR* id:33 pp:2 kickoff timeout 2 cnt 1 koff_cnt 1

13:08 <z3ntu> [ 0.645809] [drm:dpu_encoder_phys_cmd_prepare_for_kickoff] *ERROR* failed wait_for_idle: id:33 ret:-110 pp:2

13:08 <z3ntu> not really sure in which direction to poke

13:21 <krzk> Add more drm.debug and check whether pixel and byte clocks have good frequency

13:21 <krzk> You can also compare them later begtween what debugfs reports and what debugcc says

13:22 <krzk> Although these are DPU, not DSI, so maybe that's not it... maybe missing some pieces of DPU bringup

13:26 <z3ntu> I wouldn't be surprised that some pieces of my DPU config are completely wrong, but it's far from easy getting the properties correct based on downstream

13:27 <krzk> yeah...

13:33 <konradybcio> "failed wait_for_idle" sounds very bad.. make sure you didn't add any non-existent pingpong instances..

13:37 <z3ntu> qcom,sde-pp-off = <0x6a000 0x0f0f 0x6c000 0x6d000 0x67000>; from this I made pingpong_0 at .base 0x69000, then pingpong_2 0x6b000, pingpong_3 0x6c000 and then pingpong_cwb_0 0x66000

13:38 <z3ntu> dunno if it's correct to ignore pingpong_1 like this

13:39 <konradybcio> that's what i'm wondering as well

13:39 <konradybcio> without thinking much, can you try leaving only pp0?

14:42 <z3ntu> konradybcio: something doesn't seem to like only having one pp, device doesn't seem to boot up, and I don't have serial right now

14:55 <z3ntu> I've pushed my current tree here for now https://github.com/z3ntu/linux/commits/milos-6.16-wip-v2-mdss/ Maybe someone who's done DPU bringup before can take a look and see if there's anything obviously wrong.

14:55 <z3ntu> Downstream volcano-sde-common.dtsi is here https://gerrit-public.fairphone.software/plugins/gitiles/platform/vendor/qcom/proprietary/display-devicetree/+/refs/heads/odm/rc/target/15/fp6/display/volcano-sde-common.dtsi