drm/i915/lnl: Add CDCLK table

Browse source

Add a new CDCLK table for Lunar Lake.

v2:
  - Remove mdclk from the table as it's not needed (Matt Roper)
  - Update waveform values to the latest from spec (Matt Roper)
  - Rename functions and calculation to match by pixel rate (Lucas)
v3: Keep only the table: as far as intel_pixel_rate_to_cdclk()
    is concerned, the minimum cdclk should still be half the pixel
    rate on Xe2 (bspec 68858:
    "Pipe maximum pixel rate = 2 * CDCLK frequency * Pipe Ratio")
    (Matt Roper)

Bspec: 68861, 68858
Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919192128.2045154-19-lucas.demarchi@intel.com

...

This commit is contained in:

Stanislav Lisovskiy 2023-09-19 12:21:25 -07:00 • committed by Lucas De Marchi

parent 9d404dad0b

commit 394b4b7df9

1 changed files with 29 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

30

drivers/gpu/drm/i915/display/intel_cdclk.c

View file