drm-hwcomposer (HEAD) breakage on DB845c (SDM845) running AOSP with v6.4-rc2 and mesa-23.0.2
AOSP/external/drm_hwcomposer tree which is 21 commits behind upstream/main boots fine but if I update AOSP tree by merging upstream/main then DB845c do not boot to display. I see:
[drm:_dpu_rm_check_lm_and_get_connected_blks] [dpu error]failed to get dspp on lm 0
[drm:_dpu_rm_check_lm_and_get_connected_blks] [dpu error]failed to get dspp on lm 0
[drm:_dpu_rm_check_lm_and_get_connected_blks] [dpu error]failed to get dspp on lm 0
[drm:_dpu_rm_check_lm_and_get_connected_blks] [dpu error]failed to get dspp on lm 0
[drm:_dpu_rm_make_reservation] [dpu error]unable to find appropriate mixers
[drm:dpu_rm_reserve] [dpu error]failed to reserve hw resources: -119
Complete dmesg attached here: https://bugs.linaro.org/show_bug.cgi?id=5987
Does the breakage looks familiar to anyone here? I thought I'd ask before I start bisecting.