linux-kernel - Re: [PATCH v8 2/2] drm/tidss: Add support for AM625 DSS

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Date:   Fri, 16 Jun 2023 15:45:05 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Aradhya Bhatia <a-bhatia1@...com>, Jyri Sarha <jyri.sarha@....fi>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     DRI Development List <dri-devel@...ts.freedesktop.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel List <linux-kernel@...r.kernel.org>,
        Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rahul T R <r-ravikumar@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Jayesh Choudhary <j-choudhary@...com>
Subject: Re: [PATCH v8 2/2] drm/tidss: Add support for AM625 DSS

Hi,

On 08/06/2023 19:37, Aradhya Bhatia wrote:
> Add support for the DSS controller on TI's AM625 SoC in the tidss
> driver.
> 
> The AM625 DSS supports 2 video planes connecting to 2 video ports.
> The first plane is a full plane supporting all the features, while the
> 2nd plane is a "lite" plane without scaling support.

The DRM planes are reversed compared to the HW planes, aren't they? Is 
the above referring to HW planes?

> The first video port in AM625 DSS internally provides DPI output to 2
> OLDI transmitters. Each OLDI TX outputs 4 differential lanes of video
> output and 1 of clock output.

I think it should be explained that OLDI is not supported in this 
version, but will be added later.

Other than that:

Reviewed-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>

  Tomi