[igt-dev] [RFC i-g-t] LPSP igt test on TGL

[Anshuman Gupta]

On 2020-03-03 at 12:44:30 +0200, Jani Nikula wrote:
> On Tue, 03 Mar 2020, Anshuman Gupta <anshuman.gupta at intel.com> wrote:
> > On 2020-03-03 at 10:34:06 +0200, Jani Nikula wrote:
> >> On Tue, 03 Mar 2020, Anshuman Gupta <anshuman.gupta at intel.com> wrote:
> >> > On 2020-02-27 at 14:44:18 +0200, Jani Nikula wrote:
> >> >> On Thu, 27 Feb 2020, Anshuman Gupta <anshuman.gupta at intel.com> wrote:
> >> > Add a connector specific debugfs attributes i915_lpsp_cpable.
> >> > for ecah connector if it is lpsp capable, do modeset with pipe A crtc 
> >> > on that connector and validate if power wells above  pg2 are turned off
> >> > by using i915_power_domain_info. 
> >> 
> >> Why not add a debugfs file that will tell you both, instead of forcing
> >> the userspace to know about the connection between lpsp and pg2?
> > IMHO a DP/HDMI connector may not be connected to pipe A crtc in default mode.
> 
> What is default mode?
> 
> > So via igt we can have modeset on Pipe A with DP/HDMI connector and can 
> > validate lpsp for DP/HDMI connector.
> > Please correct me if am wrong.
> 
> Sorry, I am not sure what you're asking.
Sorry for noise, yes it would make sense to expose both lpsp capabilty
and lpsp status in debugfs. 
Thanks,
Anshuman Gupta.
> 
> BR,
> Jani.
> 
> -- 
> Jani Nikula, Intel Open Source Graphics Center