[Intel-gfx] [PATCH] drm/i915: Use LVDS config in Driver feature BDB for integrated LVDS check

Wang, Zhenyu Z zhenyu.z.wang at intel.com
Fri Feb 27 04:09:02 CET 2009

On 2009.02.25 09:58:11 +0800, Wang, Zhenyu Z wrote:
> The LVDS config bits in VBT driver feature block is used by vendor
> to identify the board implement of integrated LVDS/eDP or SDVO LVDS.
> And video bios also uses these bits for LVDS enabling or not. So this
> should be reliable for LVDS detect, and may eliminate quirks.

Eric, hold on commit this one. We have met LVDS failure with current ddx driver,
like bug 20339, although a bios upgrade fixed the problem. We might check BDB
version to verfiy driver feature block definition, and only use the block info
when satisfied.

Open Source Technology Center, Intel ltd.

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