[Intel-gfx] [PATCH 3/4] drm/i915: Ironlake suspend/resume support

Zhenyu Wang zhenyuw at linux.intel.com
Wed Oct 21 07:23:34 CEST 2009

On 2009.10.21 10:10:33 +0800, Guo, Chaohong wrote:
>     After resuming from S3,  drm will force-set-mode, and the TRANS_HOTAL_X
> like registers will be set according to HOTAL like registers,  seems that it is not
> necessary to save/restore TRANS_xxx registers. Is it right ?

I think we have a rule that any touched register should be saved/restore for suspend,
to be sure the state is consistent after resume.

Open Source Technology Center, Intel ltd.

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