[Intel-gfx] [PATCH] drm/i915: set TV detection mode when tv is connected.

[Ma, Ling]

Hi Keith
http://bugs.freedesktop.org/show_bug.cgi?id=22035 indicates
 even if tv pipe is active, our tv detection have to go through whole procedure,
 including disable tv controller, set detection mode  and sense values
in tv dac register. We can not directly read status to judge current tv status,
blinking is normal action during tv detection phase as CRT load detection.

Thanks
Ma Ling



>-----Original Message-----
>From: Ma, Ling 
>Sent: Tuesday, June 16, 2009 2:12 PM
>To: 'Keith Packard'
>Cc: intel-gfx at lists.freedesktop.org
>Subject: RE: [Intel-gfx] [PATCH] drm/i915: set TV detection 
>mode when tv is connected.
>
> 
>
>>-----Original Message-----
>>From: Keith Packard [mailto:keithp at keithp.com] 
>>Sent: Tuesday, June 16, 2009 2:04 PM
>>To: Ma, Ling
>>Cc: keithp at keithp.com; intel-gfx at lists.freedesktop.org
>>Subject: RE: [Intel-gfx] [PATCH] drm/i915: set TV detection 
>>mode when tv is connected.
>>
>>On Tue, 2009-06-16 at 13:56 +0800, Ma, Ling wrote:
>>
>>> We  detect tv status by setting TESTMODE in  tv control 
>>register, and  sense values in tv dac register as  high state,
>>> if load_detect_temp is false , we don't set them, so 
>>detection can not work.
>>
>>Sure, but this will cause blinking on the TV each time we test, right?
>>
>Yes, it will cause blinking when tv is active, what else good 
>approach :) ?
>
>Thanks
>Ma Ling
>>-- 
>>keith.packard at intel.com
>>