[Intel-gfx] [Patch]: Calculate the DVO relative offset in LVDS data entry to get the DVO timing

[Jesse Barnes]

On Fri, 24 Jul 2009 10:44:20 +0800
yakui.zhao at intel.com wrote:

> From: Zhao Yakui <yakui.zhao at intel.com>
> 
>     Now the DVO timing in LVDS data entry is obtained by using the
> following step:
>     a. get the entry size for every LVDS panel data
>     b. Get the LVDS fp entry for the preferred panel type
>     c. get the DVO timing by using entry->dvo_timing
> 
>     In our driver the entry->dvo_timing is related with the size of 
> lvds_fp_timing. For example: the size is 46.
>     
>     But it seems that the size of lvds_fp_timing varies on the
> differnt platform. In such case we will get the incorrect DVO timing
> because of the incorrect DVO offset in LVDS panel data entry.
>     
> Calculate the DVO timing offset in LVDS data entry to get the DVO
> timing a. get the DVO timing offset in the LVDS fp data entry by
> using the pointer definition in LVDS data ptr
>     b. get the LVDS data entry
>     c. get the DVO timing by adding the DVO timing offset to data
> entry
> 
> https://bugs.freedesktop.org/show_bug.cgi?id=22787

Ugg, wish our VBIOS tables were a bit better.

Acked-by: Jesse Barnes <jbarnes at virtuousgeek.org>

-- 
Jesse Barnes, Intel Open Source Technology Center