drm/i915/cdclk: abstract intel_cdclk_min_cdclk()

Add intel_cdclk_min_cdclk() helper to avoid looking at struct
intel_cdclk_state internals outside of intel_cdclk.c.

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/af768e7fc32d8fa8ddcbbe2683266c30ae3b925d.1750847509.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Author: jnikula

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

@@ -3839,3 +3839,8 @@ int intel_cdclk_logical(const struct intel_cdclk_state *cdclk_state)
 {
 	return cdclk_state->logical.cdclk;
 }
+
+int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe pipe)
+{
+	return cdclk_state->min_cdclk[pipe];
+}

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

@@ -98,5 +98,6 @@ int intel_cdclk_init(struct intel_display *display);
 void intel_cdclk_debugfs_register(struct intel_display *display);
 
 int intel_cdclk_logical(const struct intel_cdclk_state *cdclk_state);
+int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe pipe);
 
 #endif /* __INTEL_CDCLK_H__ */

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

@@ -333,15 +333,15 @@ int intel_plane_calc_min_cdclk(struct intel_atomic_state *state,
 	 * display blinking due to constant cdclk changes.
 	 */
 	if (new_crtc_state->min_cdclk[plane->id] <=
-	    cdclk_state->min_cdclk[crtc->pipe])
+	    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe))
 		return 0;
 
 	drm_dbg_kms(display->drm,
 		    "[PLANE:%d:%s] min cdclk (%d kHz) > [CRTC:%d:%s] min cdclk (%d kHz)\n",
 		    plane->base.base.id, plane->base.name,
 		    new_crtc_state->min_cdclk[plane->id],
 		    crtc->base.base.id, crtc->base.name,
-		    cdclk_state->min_cdclk[crtc->pipe]);
+		    intel_cdclk_min_cdclk(cdclk_state, crtc->pipe));
 	*need_cdclk_calc = true;
 
 	return 0;