linux-kernel - Re: [PATCH 05/12] drm: bridge/dw_hdmi: add support for interlaced video modes

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Message-ID: <CAOMZO5BTiiXL2xbHO1VupkXbN=kOm3Amw77c7h2CujrBzQGjDQ@mail.gmail.com>
Date:	Tue, 6 Oct 2015 15:00:18 -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 05/12] drm: bridge/dw_hdmi: add support for interlaced
 video modes

On Sat, Aug 8, 2015 at 1:03 PM, Russell King
<rmk+kernel@....linux.org.uk> wrote:
> Add support for interlaced video modes to the dw_hdmi bridge.  This
> mainly involves halving the vertical parameters to be programmed into
> the bridge registers, and setting the interlace_allowed connector flag.
>
> This brings working 1080i support.  However, 480i and 576i fail to
> work due to the lack of proper pixel repetition support, which is not
> trivial to add due to the tabular PLL parameterisation.  Hence, we
> filter out these modes in our mode_valid() method.
>
> Signed-off-by: Russell King <rmk+kernel@....linux.org.uk>

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