drm/i915: Extract some helpers to compute cdclk register values

Extract a few of the switch statements into helper functions to
reduce the pollution in the cdclk programming functions.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210430153444.29270-2-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä 2021-04-30 18:34:40 +03:00
commit b41df85a98