From: Chun-Kuang Hu <chunkuang.hu@kernel.org>
To: Neil Armstrong <narmstrong@baylibre.com>,
Jitao Shi <jitao.shi@mediatek.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, srv_heupstream@mediatek.com,
David Airlie <airlied@linux.ie>,
huijuan.xie@mediatek.com, stonea168@163.com,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
cawa.cheng@mediatek.com, Rob Herring <robh+dt@kernel.org>,
linux-mediatek@lists.infradead.org,
Matthias Brugger <matthias.bgg@gmail.com>,
yingjoe.chen@mediatek.com, eddie.huang@mediatek.com,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v13 1/6] dt-bindings: media: add pclk-sample dual edge property
Date: Tue, 17 Mar 2020 21:33:46 +0800 [thread overview]
Message-ID: <CAAOTY_8B+AS9uUvazfg_OtvnaW8kJVbyNB-FVUYh5MPMuJnf8g@mail.gmail.com> (raw)
In-Reply-To: <c46e49e6-846f-4f41-a8e3-57d5503e1cd7@baylibre.com>
Hi, Jitao:
I agree with Neil, so please base on Boris' effort to negotiate with bridge.
Regards,
Chun-Kuang Hu
Neil Armstrong <narmstrong@baylibre.com> 於 2020年3月11日 週三 下午9:53寫道：
>
> Hi,
>
> On 11/03/2020 08:18, Jitao Shi wrote:
> > Some chips's sample mode are rising, falling and dual edge (both
> > falling and rising edge).
> > Extern the pclk-sample property to support dual edge.
> >
> > Acked-by: Rob Herring <robh@kernel.org>
> > Reviewed-by: CK Hu <ck.hu@mediatek.com>
> > Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
> > ---
> > Documentation/devicetree/bindings/media/video-interfaces.txt | 4 ++--
> > 1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/media/video-interfaces.txt b/Documentation/devicetree/bindings/media/video-interfaces.txt
> > index f884ada0bffc..da9ad24935db 100644
> > --- a/Documentation/devicetree/bindings/media/video-interfaces.txt
> > +++ b/Documentation/devicetree/bindings/media/video-interfaces.txt
> > @@ -118,8 +118,8 @@ Optional endpoint properties
> > - data-enable-active: similar to HSYNC and VSYNC, specifies the data enable
> > signal polarity.
> > - field-even-active: field signal level during the even field data transmission.
> > -- pclk-sample: sample data on rising (1) or falling (0) edge of the pixel clock
> > - signal.
> > +- pclk-sample: sample data on rising (1), falling (0) or both rising and
> > + falling (2) edge of the pixel clock signal.
> > - sync-on-green-active: active state of Sync-on-green (SoG) signal, 0/1 for
> > LOW/HIGH respectively.
> > - data-lanes: an array of physical data lane indexes. Position of an entry
> >
>
> This changes the bus format, but we recently introduced a bus format negociation
> between bridges to avoid adding such properties into DT, and make bus format setup
> dynamic between an encoder and a bridge.
>
> It would be great to use that instead.
>
> Neil
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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next prev parent reply other threads:[~2020-03-17 13:34 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 7:18 [PATCH v13 0/6] mt8183 dpi supports dual edge and pin mode swap Jitao Shi
2020-03-11 7:18 ` [PATCH v13 1/6] dt-bindings: media: add pclk-sample dual edge property Jitao Shi
2020-03-11 13:53 ` Neil Armstrong
2020-03-17 13:33 ` Chun-Kuang Hu [this message]
2020-03-11 7:18 ` [PATCH v13 2/6] dt-bindings: display: mediatek: control dpi pins mode to avoid leakage Jitao Shi
2020-03-11 13:44 ` Chun-Kuang Hu
2020-03-19 18:29 ` Rob Herring
2020-03-11 7:18 ` [PATCH v13 3/6] dt-bindings: display: mediatek: dpi sample data in dual edge support Jitao Shi
2020-03-11 7:18 ` [PATCH v13 4/6] dt-bindings: display: mediatek: convert the document format from txt to yaml Jitao Shi
2020-03-19 18:33 ` Rob Herring
2020-03-11 7:18 ` [PATCH v13 5/6] drm/mediatek: dpi sample mode support Jitao Shi
2020-03-11 13:56 ` Neil Armstrong
2020-03-11 7:18 ` [PATCH v13 6/6] drm/mediatek: set dpi pin mode to gpio low to avoid leakage current Jitao Shi
2020-03-11 13:45 ` Chun-Kuang Hu
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