From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
Subject: Re: [PATCH v3 09/24] drm/sun4i: Don't skip TCONs if
 they don't have channel 0
Date: Thu, 28 Jun 2018 09:51:31 +0800
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References: <20180625120304.7543-1-jernej.skrabec@siol.net> <20180625120304.7543-10-jernej.skrabec@siol.net>
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To: Jernej Skrabec <jernej.skrabec-gGgVlfcn5nU@public.gmane.org>
Cc: Maxime Ripard <maxime.ripard-LDxbnhwyfcJBDgjK7y7TUQ@public.gmane.org>, Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>, David Airlie <airlied-cv59FeDIM0c@public.gmane.org>, Gustavo Padovan <gustavo-THi1TnShQwVAfugRpC6u6w@public.gmane.org>, Maarten Lankhorst <maarten.lankhorst-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>, Sean Paul <seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>, Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>, dri-devel <dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org>, devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-arm-kernel <linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>, linux-kernel <linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-clk <linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>, linux-sunxi <linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
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On Mon, Jun 25, 2018 at 8:02 PM, Jernej Skrabec <jernej.skrabec-gGgVlfcn5nU@public.gmane.org> wrote:
> TV TCONs (channel 1 only) are always connected to TV or HDMI encoder.
> Because of that, all output endpoints on such TCON node will point to a
> encoder which is part of component framework.
>
> Correct current graph traversing algorithm in such way that it doesn't
> skip output enpoints with id 0 on TV TCONs.

No. Our bindings say that endpoint 0 _is_ channel 0. For TCONs that don't
have channel 0, it must be skipped.

ChenYu