linux-kernel - Re: [PATCH 0/3] drm/vc4: Support HDMI QHD or higher output

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Date:   Wed, 26 Aug 2020 11:56:31 +0200
From:   Stefan Wahren <stefan.wahren@...e.com>
To:     Hoegeun Kwon <hoegeun.kwon@...sung.com>, nsaenzjulienne@...e.de,
        eric@...olt.net, maxime@...no.tech
Cc:     devicetree@...r.kernel.org, tim.gover@...pberrypi.com,
        kdasu.kdev@...il.com, sboyd@...nel.org, mturquette@...libre.com,
        dave.stevenson@...pberrypi.com, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, phil@...pberrypi.com,
        robh+dt@...nel.org, bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 0/3] drm/vc4: Support HDMI QHD or higher output

Hi Hoegeun,

Am 21.08.20 um 09:10 schrieb Hoegeun Kwon:
> Hi everyone,
>
> There is a problem that the output does not work at a resolution
> exceeding FHD. To solve this, we need to adjust the bvb clock at a
> resolution exceeding FHD.
thanks for providing this.
>
> Rebased on top of next-20200708 and [1].
>
> [1] : [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline (Maxime's patchset)
>
> Hoegeun Kwon (3):the 
>   clk: bcm: rpi: Add register to control pixel bvb clk
>   ARM: dts: bcm2711: Add bvb clock for hdmi-pixel
>   drm/vc4: hdmi: Add pixel bvb clock control

Please change the order of your last 2 patches. First the driver changes
and then the device tree sources.

Regards
Stefan

>
>  arch/arm/boot/dts/bcm2711-rpi-4-b.dts |  6 ++++--
>  drivers/clk/bcm/clk-raspberrypi.c     |  1 +
>  drivers/gpu/drm/vc4/vc4_hdmi.c        | 25 +++++++++++++++++++++++++
>  drivers/gpu/drm/vc4/vc4_hdmi.h        |  1 +
>  4 files changed, 31 insertions(+), 2 deletions(-)
>