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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: igt-dev@lists.freedesktop.org, martin.peres@intel.com
Subject: Re: [igt-dev] [RFC i-g-t] LPSP igt test on TGL
Date: Thu, 27 Feb 2020 14:55:48 +0200	[thread overview]
Message-ID: <20200227125548.GN13686@intel.com> (raw)
In-Reply-To: <20200227084149.588-1-anshuman.gupta@intel.com>

On Thu, Feb 27, 2020 at 02:11:49PM +0530, Anshuman Gupta wrote:
> +-------------------------------------------------------------------------------+
> |                                                                               |
> |                                                                               |
> |                                                                               |
> |   +--------------------+        +-------------+         +------------+        |
> |   |                    |        |             |         |            |        |
> |   |    PIPE A          |        | DP/HDMI     |         |   PORT_A   |        |
> |   |                    +--------+ TRANSCODER  +---------+            |        |
> |   |                    |        |             |         |            |        |
> |   +--------------------+        +------------->         +------------>        |
> |                                 |             |         |            |        |
> |                                 |             |         |   PORT_B   |        |
> |                                 |             |         |            |        |
> |                                 |             |         |            |        |
> |                                 +------------->         +------------>        |
> |                                 |             |         |            |        |
> |                                 | DSI         |         |   PORT_C   |        |
> |                                 | TRANSCODER  |         |            |        |
> |                                 +------------->         +------------+        |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 |             |                               |
> |                                 +-------------+                               |
> |                                                                               |
> |                   LPSP on Tigerlake                                           |
> |                                                                               |
> +-------------------------------------------------------------------------------+
> 
> Above block diagram depicts lpsp on TGL, while earlier development of lpsp igt test
> it has been assumed that every non-edp panel is not a lpsp panel but it is not true
> on TGL,

It wasn't necessarily true on earlier platforms either. I don't know if
this makes any sense whatsoever. Probably a better way to validate would
be to check that the resulting power domains make sense for various
single pipe configurations.

-- 
Ville Syrjälä
Intel
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      parent reply	other threads:[~2020-02-27 12:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-27  8:41 [igt-dev] [RFC i-g-t] LPSP igt test on TGL Anshuman Gupta
2020-02-27 12:44 ` Jani Nikula
2020-03-03  4:27   ` Anshuman Gupta
2020-03-03  8:34     ` Jani Nikula
2020-03-03  8:45       ` Anshuman Gupta
2020-03-03 10:44         ` Jani Nikula
2020-03-03 12:20           ` Anshuman Gupta
2020-02-27 12:55 ` Ville Syrjälä [this message]

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