[Intel-gfx] [v2] drm/i915: Tweaked Wa_14010685332 for all PCHs

[Anshuman Gupta]

On 2021-06-30 at 19:19:04 +0800, acelan.kao at canonical.com wrote:
> > dispcnlunit1_cp_xosc_clkreq clock observed to be active on TGL-H platform
> > despite Wa_14010685332 original sequence, thus blocks entry to deeper s0ix
> > state.
> > 
> > The Tweaked Wa_14010685332 sequence fixes this issue, therefore use tweaked
> > Wa_14010685332 sequence for every PCH since PCH_CNP.
> > 
> > v2:
> > - removed RKL from comment and simplified condition. [Rodrigo]
> > 
> > Fixes: b896898c7369 ("drm/i915: Tweaked Wa_14010685332 for PCHs used on
> > gen11 platforms") Cc: Matt Roper <matthew.d.roper at intel.com>
> > Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
> > Cc: Imre Deak <imre.deak at intel.com>
> > Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> > ---
> > 
> >  .../drm/i915/display/intel_display_power.c    | 16 +++++++-------
> >  drivers/gpu/drm/i915/i915_irq.c               | 21 -------------------
> >  2 files changed, 8 insertions(+), 29 deletions(-)
> Hi,
> 
> I didn't see this patch shown in mainline kernel tree, nor in drm-tip,
> May I know what the patch's status now?
We have observed that this patch does not fix the issue on all platforms.
That is the reason patch is not merged yet.
Br,
Anshuman Gupta.

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