linux-kernel - Re: [PATCH v1 2/8] dt-bindings: display: panel: mipi-dbi-spi: add spi-3wire property

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Message-ID: <168617879603.141215.16607194482665688976.robh@kernel.org>
Date:   Wed, 7 Jun 2023 16:59:58 -0600
From:   Rob Herring <robh@...nel.org>
To:     Leonard Göhrs <l.goehrs@...gutronix.de>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Noralf Trønnes <noralf@...nnes.org>,
        Sam Ravnborg <sam@...nborg.org>, devicetree@...r.kernel.org,
        David Airlie <airlied@...il.com>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Daniel Vetter <daniel@...ll.ch>, linux-kernel@...r.kernel.org,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        kernel@...gutronix.de, dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v1 2/8] dt-bindings: display: panel: mipi-dbi-spi: add
 spi-3wire property


On Wed, 07 Jun 2023 13:55:01 +0200, Leonard Göhrs wrote:
> Some MIPI DBI panels support a three wire mode (clock, chip select,
> bidirectional data) that can be used to ask the panel if it is already set
> up by e.g. the bootloader and can thus skip the initialization.
> This enables a flicker-free boot.
> 
> Signed-off-by: Leonard Göhrs <l.goehrs@...gutronix.de>
> ---
>  .../devicetree/bindings/display/panel/panel-mipi-dbi-spi.yaml   | 2 ++
>  1 file changed, 2 insertions(+)
> 

Reviewed-by: Rob Herring <robh@...nel.org>