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Message-ID: <20160912130520.GA9582@rob-hp-laptop>
Date: Mon, 12 Sep 2016 08:05:20 -0500
From: Rob Herring <robh@...nel.org>
To: Peter Ujfalusi <peter.ujfalusi@...com>
Cc: thierry.reding@...il.com, airlied@...ux.ie, tomi.valkeinen@...com,
daniel.vetter@...ll.ch, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
devicetree@...r.kernel.org
Subject: Re: [PATCH 01/26] dt-bindings: display: display-timing: Add property
to configure sync drive edge
On Thu, Sep 01, 2016 at 02:22:55PM +0300, Peter Ujfalusi wrote:
> There are display panels which demands that the sync signal is driven on
> different edge than the pixel data.
> With the syncclk-active property we can specify the clk edge to be used to
> drive the sync signal. When the property is missing it indicates that the
> sync is driven on the same edge as the pixel data.
>
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@...com>
> CC: Rob Herring <robh+dt@...nel.org>
> CC: Mark Rutland <mark.rutland@....com>
> CC: devicetree@...r.kernel.org
> ---
> Documentation/devicetree/bindings/display/panel/display-timing.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/panel/display-timing.txt b/Documentation/devicetree/bindings/display/panel/display-timing.txt
> index e1d4a0b59612..1436292e7a56 100644
> --- a/Documentation/devicetree/bindings/display/panel/display-timing.txt
> +++ b/Documentation/devicetree/bindings/display/panel/display-timing.txt
> @@ -32,6 +32,12 @@ optional properties:
> - active low = drive pixel data on falling edge/
> sample data on rising edge
> - ignored = ignored
> + - syncclk-active: with
> + - active high = drive sync on rising edge/
rising edge of what? pixel clk?
> + sample sync on falling edge
> + - active low = drive sync on falling edge/
> + sample sync on rising edge
> + - omitted = same configuration as pixelclk-active
> - interlaced (bool): boolean to enable interlaced mode
> - doublescan (bool): boolean to enable doublescan mode
> - doubleclk (bool): boolean to enable doubleclock mode
> --
> 2.9.3
>
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