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From: Alex Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Mark Zhang <markz-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Cc: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
	Thierry Reding
	<thierry.reding-RM9K5IK7kjKj5M59NBduVrNAH6kLmebB@public.gmane.org>,
	"linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
	<linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
	"gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org"
	<gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v3] ARM: tegra: ventana: enable internal display
Date: Tue, 20 Nov 2012 10:47:44 +0900	[thread overview]
Message-ID: <6034130.4mMqBdPRel@percival> (raw)
In-Reply-To: <50AADEE5.2030302-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

On Tuesday 20 November 2012 09:37:41 Mark Zhang wrote:
> Great. So this means I2C2 is used for LCD and HDMI both. While HDMI is
> not plugged, the EDID of LCD will be checked out, right?

Ahhh. So that's why the LCD DDC was not working during my previous tests - I 
had HDMI nodes in my DT as well as the HDMI cable plugged! Indeed, things seem 
to work as you described. I assumed the i2cmux node would set the right pin 
configuration according to whether we want to read the LCD or HDMI DDC, but 
apparently this is not totally working yet. Glad we figured it out. Adding the 
HDMI nodes to Ventana will probably require to fix this (along with other 
things, probably) first.

Alex.

  parent reply	other threads:[~2012-11-20  1:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-11-19  9:43 [PATCH v3] ARM: tegra: ventana: enable internal display Alexandre Courbot
     [not found] ` <1353318187-26484-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-20  1:37   ` Mark Zhang
     [not found]     ` <50AADEE5.2030302-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2012-11-20  1:47       ` Alex Courbot [this message]
2012-11-20  5:08         ` Stephen Warren
     [not found]           ` <50AB1044.5030704-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>
2012-11-20  5:11             ` Alex Courbot

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