linux-kernel - Re: [PATCH 04/12] gpu: imx: fix support for interlaced modes

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Message-ID: <CAOMZO5D_UXL5mqQFyTPnTu_ixxAfXPq5Qrg4jdVoRdQGUZVeFQ@mail.gmail.com>
Date:	Tue, 6 Oct 2015 14:59:16 -0300
From:	Fabio Estevam <festevam@...il.com>
To:	Russell King <rmk+kernel@....linux.org.uk>
Cc:	linux-rockchip@...ts.infradead.org,
	DRI mailing list <dri-devel@...ts.freedesktop.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Fabio Estevam <fabio.estevam@...escale.com>,
	Yakir Yang <ykk@...k-chips.com>,
	Andy Yan <andy.yan@...k-chips.com>
Subject: Re: [PATCH 04/12] gpu: imx: fix support for interlaced modes

On Sat, Aug 8, 2015 at 1:03 PM, Russell King
<rmk+kernel@....linux.org.uk> wrote:
> The support for interlaced video modes seems to be broken; we don't use
> anything other than the vtotal/htotal from the timing information to
> define the various sync counters.
>
> Freescale patches for interlaced video support contain an alternative
> sync counter setup, which we include here.  This setup produces the
> hsync and vsync via the normal counter 2 and 3, but moves the display
> enable signal from counter 5 to counter 6.  Therefore, we need to
> change the display controller setup as well.
>
> The corresponding Freescale patches for this change are:
>   iMX6-HDMI-support-interlaced-display-mode.patch
>   IPU-fine-tuning-the-interlace-display-timing-for-CEA.patch
>
> This produces a working interlace format output from the IPU.
>
> Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>

Reviewed-by: Fabio Estevam <fabio.estevam@...escale.com>
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