Hi! On Fri, Sep 04, 2020 at 06:16:16PM +0800, Jian-Hong Pan wrote: > Thanks for version 5 patch series! > > I applied it based on linux-next tag next-20200828 and build it with > the config [1] to test on RPi 4 > However, It fails to get HDMI state machine clock and pixel bcb clock. > Then, vc4-drm probes failed. Full dmseg [2]: > > [ 2.552675] [drm:vc5_hdmi_init_resources] *ERROR* Failed to get > HDMI state machine clock > [ 2.557974] raspberrypi-firmware soc:firmware: Attached to firmware > from 2020-06-01T13:23:40 > [ 2.567612] of_clk_hw_onecell_get: invalid index 14 > [ 2.567636] [drm:vc5_hdmi_init_resources] *ERROR* Failed to get > pixel bvb clock > [ 2.567664] vc4-drm gpu: failed to bind fef00700.hdmi (ops vc4_hdmi_ops): -2 > [ 2.567731] vc4-drm gpu: master bind failed: -2 > [ 2.567755] vc4-drm: probe of gpu failed with error -2 Sorry, I should have mentionned it in the cover letter. This series depends on that patch from Hoegeun: https://lore.kernel.org/dri-devel/20200901040759.29992-2-hoegeun.kwon@xxxxxxxxxxx/ Maxime
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