Re: [RFC PATCH 1/3] drm/msm/dpu: add support for MSM8953

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On 29/09/2023 23:52, Luca Weiss wrote:
On Samstag, 23. September 2023 23:49:10 CEST Dmitry Baryshkov wrote:
Experimental support for MSM8953, which has MDP5 v1.16. It looks like
trimmed down version of MSM8996. Less SSPP, LM and PP blocks. No DSC,
etc.


Hi Dmitry,

As written on IRC, on sdm632-fairphone-fp3 with this DPU patches the screen is
initializing and displaying stuff :) But there's some errors, which presumably
are the reason that the screen is only updating a few times per second.

[   22.774205] [drm:dpu_kms_hw_init:1164] dpu hardware revision:0x10100000
[   23.099806] [drm:_dpu_encoder_phys_cmd_wait_for_ctl_start:657] [dpu error]enc31 intf1 ctl start interrupt wait failed
[   23.099821] [drm:dpu_kms_wait_for_commit_done:495] [dpu error]wait for commit done returned -22

These messages appear about 13 times per second but as I mentioned, the screen
*is* updating (slowly) there.

For my understanding, does it work with the MDP5 driver?


Also you for sure forgot to add "qcom,msm8953-mdp5" to the
msm_mdp5_dpu_migration list, without this DPU is never even considered for
8953.

--
With best wishes
Dmitry




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