drm/i915: Extract HAS_DOUBLE_BUFFERED_M_N()
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 7 Sep 2022 09:10:43 +0000 (12:10 +0300)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 7 Sep 2022 18:12:32 +0000 (21:12 +0300)
commit9988db59b1d000c6ac7e91144f550603626593a4
tree01609f379110830987b61062a4b11a0461e339b7
parentc61ede87b08c56cead5814ef92f0d5eda9759f0c
drm/i915: Extract HAS_DOUBLE_BUFFERED_M_N()

We have a couple of places that want to make distinction between
double buffered M/N registers vs. the split M1/N1+M2/N2 registers.
Add a helper for that.

v2: Turn into a HAS_ macro (Jani)

Reviewed-by: Jani Nikula <jani.nikula@intel.com> #v1
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-4-ville.syrjala@linux.intel.com
drivers/gpu/drm/i915/display/intel_display.c
drivers/gpu/drm/i915/display/intel_dp.c
drivers/gpu/drm/i915/i915_drv.h