linux-kernel - Re: [PATCH v2 2/3] video: display_timing: Add flags to select the edge when the sync is driven

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Date:   Thu, 29 Sep 2016 13:54:11 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...com>
To:     Peter Ujfalusi <peter.ujfalusi@...com>, <robh+dt@...nel.org>,
        <airlied@...ux.ie>, <thierry.reding@...il.com>
CC:     <linux-fbdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <daniel.vetter@...ll.ch>, <dri-devel@...ts.freedesktop.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 2/3] video: display_timing: Add flags to select the
 edge when the sync is driven

On 22/09/16 13:35, Peter Ujfalusi wrote:
> The sync can be - and for some panels it must be - driven on different edge
> then the data.

Well, the "can be" depends on the display controller =).

> 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
> ---
>  include/video/display_timing.h | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/include/video/display_timing.h b/include/video/display_timing.h
> index 28d9d0d566ca..3d289e990aca 100644
> --- a/include/video/display_timing.h
> +++ b/include/video/display_timing.h
> @@ -28,6 +28,10 @@ enum display_flags {
>  	DISPLAY_FLAGS_INTERLACED	= BIT(8),
>  	DISPLAY_FLAGS_DOUBLESCAN	= BIT(9),
>  	DISPLAY_FLAGS_DOUBLECLK		= BIT(10),
> +	/* drive sync on pos. edge */
> +	DISPLAY_FLAGS_SYNC_POSEDGE	= BIT(11),
> +	/* drive sync on neg. edge */
> +	DISPLAY_FLAGS_SYNC_NEGEDGE	= BIT(12),
>  };
>  
>  /*
> 

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

 Tomi



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