drm/i915: Simplify intel_cx0_program_phy_lane() with loop

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It is possible to generalize the "disable" value for the transmitters to
be a bit mask based on the port width and the port reversal boolean,
with a small exception for DP-alt mode with "x1" port width.

Simplify the code by using such a mask and a for-loop instead of using
switch-case statements.

v2:
  - Use (i < 2) instead of (i / 2 == 0) for PHY lane mask selection.
    (Jani)

BSpec: 64539
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230814131331.69516-3-gustavo.sousa@intel.com

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Gustavo Sousa 2023-08-14 10:13:29 -03:00 • committed by Matt Roper

parent 3a8ecd4c3e

commit 0f5c2e5bd2

1 changed files with 20 additions and 59 deletions

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drivers/gpu/drm/i915/display/intel_cx0_phy.c

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