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Date:   Mon, 7 Sep 2020 18:14:24 +0200
From:   Maxime Ripard <maxime@cerno.tech>
To:     Jian-Hong Pan <jian-hong@endlessm.com>
Cc:     bcm-kernel-feedback-list@broadcom.com,
        dave.stevenson@raspberrypi.com, devicetree@vger.kernel.org,
        dri-devel@lists.freedesktop.org, eric@anholt.net,
        kdasu.kdev@gmail.com, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
        nsaenzjulienne@suse.de, p.zabel@pengutronix.de,
        phil@raspberrypi.com, robh+dt@kernel.org, sboyd@kernel.org,
        tim.gover@raspberrypi.com,
        Linux Upstreaming Team <linux@endlessm.com>
Subject: Re: [PATCH v5 00/80] drm/vc4: Support BCM2711 Display Pipeline
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Hi!

On Fri, Sep 04, 2020 at 06:16:16PM +0800, Jian-Hong Pan wrote:
> Thanks for version 5 patch series!
>=20
> 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]:
>=20
> [    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_op=
s): -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@samsu=
ng.com/

Maxime

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