linux-kernel - Re: [PATCH v2 0/4] drm/vc4: Support HDMI QHD or higher output

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Message-ID: <7367c17489ef7d5bc24c0452c9887663f938344b.camel@suse.de>
Date:   Tue, 08 Sep 2020 18:11:36 +0200
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Hoegeun Kwon <hoegeun.kwon@...sung.com>, eric@...olt.net,
        maxime@...no.tech, stefan.wahren@...e.com,
        dave.stevenson@...pberrypi.com
Cc:     devicetree@...r.kernel.org, tim.gover@...pberrypi.com,
        sboyd@...nel.org, mturquette@...libre.com, kdasu.kdev@...il.com,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-clk@...r.kernel.org, robh+dt@...nel.org,
        bcm-kernel-feedback-list@...adcom.com,
        linux-rpi-kernel@...ts.infradead.org, phil@...pberrypi.com,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 0/4] drm/vc4: Support HDMI QHD or higher output

On Tue, 2020-09-01 at 13:07 +0900, Hoegeun Kwon wrote:
> 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.
> 
> Rebased on top of next-20200708 and [1].
> 
> [1] : [PATCH v4 00/78] drm/vc4: Support BCM2711 Display Pipeline (Maxime's patchset)
> 
> Changes from v1:
>   - Added dt-bindings documents
>   - Change patch order, first fix driver and then device tree
> 
> Hoegeun Kwon (4):
>   clk: bcm: rpi: Add register to control pixel bvb clk
>   drm/vc4: hdmi: Add pixel bvb clock control
>   dt-bindings: display: vc4: hdmi: Add bvb clock-names property
>   ARM: dts: bcm2711: Add bvb clock for hdmi-pixel
> 
>  .../bindings/display/brcm,bcm2711-hdmi.yaml   | 12 ++++++---
>  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 +
>  5 files changed, 39 insertions(+), 6 deletions(-)

Small note to anyone reviewing this, patches 3 & 4 where squashed into this
series: https://lkml.org/lkml/2020/9/3/219

Regards,
Nicolas


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