drm/i915: Extract multiply_wm_latency() from skl_read_wm_latency()

I want skl_read_wm_latency() to just do what it says on
the tin, ie. read the latency values from the pcode mailbox.
Move the DG2 "multiply by two" trick elsewhere.

Reviewed-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250919193000.17665-7-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2025-09-19 22:29:53 +03:00
commit 91acc63178