drm/i915/cdclk: Introduce has_cd2x_pipe_select()

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We have several open coded checks for the platform's
cd2x pipe select capability, each written slightly
differently. Move it all into a common
has_cd2x_pipe_select() helper.

No functional changes as the previous 'DISPLAY_VER < 30'
checks were in codepaths that already exclude pre-bxt
platforms, and intel_cdclk_can_cd2x_update() already
rejects PTL+ via the later HAS_CDCLK_SQUASH() check.

Also update the docs for the register bitfield while at it.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260717155107.17801-2-ville.syrjala@linux.intel.com
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>

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This commit is contained in:

Ville Syrjälä 2026-07-17 18:51:07 +03:00

parent 1786d26887

commit 1ceb1ef81c

2 changed files with 9 additions and 5 deletions

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12

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

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2

drivers/gpu/drm/i915/display/intel_display_regs.h

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