Re: [Intel-gfx] [PATCH v3] drm/i915/dsi: let HW maintain the HS-TRAIL timing

2022-01-03 Thread Kulkarni, Vandita
> -Original Message- > From: Tseng, William > Sent: Friday, December 17, 2021 3:39 PM > To: intel-gfx@lists.freedesktop.org > Cc: Tseng, William ; Ville Syrjala > ; Jani Nikula ; > Kulkarni, Vandita ; Lee, Shawn C > ; Chiou, Cooper > Subject: [PATCH v3] drm/i915/dsi: let HW maintain the H

[Intel-gfx] [PATCH v3] drm/i915/dsi: let HW maintain the HS-TRAIL timing

2021-12-17 Thread William Tseng
This change is to avoid over-specification of the TEOT timing parameter, which is derived from software in current design. Supposed that THS-TRAIL and THS-EXIT have the minimum values, i.e., 60 and 100 in ns. If SW is overriding the HW default, the TEOT value becomes 150 ns, approximately calculat