drm/i915: Extract intel_cdclk_crtc_disable_noatomic()

Hoist the cdclk stuff into a separate function from
intel_crtc_disable_noatomic_complete() so that the details
are better hidden inside intel_cdclk.c.

Reviewed-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306163420.3961-5-ville.syrjala@linux.intel.com

Author: vsyrjala

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

@@ -3340,6 +3340,18 @@ int intel_modeset_calc_cdclk(struct intel_atomic_state *state)
 	return 0;
 }
 
+void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc)
+{
+	struct intel_display *display = to_intel_display(crtc);
+	struct intel_cdclk_state *cdclk_state =
+		to_intel_cdclk_state(display->cdclk.obj.state);
+	enum pipe pipe = crtc->pipe;
+
+	cdclk_state->min_cdclk[pipe] = 0;
+	cdclk_state->min_voltage_level[pipe] = 0;
+	cdclk_state->active_pipes &= ~BIT(pipe);
+}
+
 static int intel_compute_max_dotclk(struct intel_display *display)
 {
 	int ppc = intel_cdclk_ppc(display, HAS_DOUBLE_WIDE(display));

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

@@ -12,6 +12,7 @@
 #include "intel_global_state.h"
 
 struct intel_atomic_state;
+struct intel_crtc;
 struct intel_crtc_state;
 struct intel_display;
 
@@ -83,6 +84,7 @@ int intel_cdclk_atomic_check(struct intel_atomic_state *state,
 int intel_cdclk_state_set_joined_mbus(struct intel_atomic_state *state, bool joined_mbus);
 struct intel_cdclk_state *
 intel_atomic_get_cdclk_state(struct intel_atomic_state *state);
+void intel_cdclk_crtc_disable_noatomic(struct intel_crtc *crtc);
 
 #define to_intel_cdclk_state(global_state) \
 	container_of_const((global_state), struct intel_cdclk_state, base)

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

@@ -158,8 +158,6 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 	struct drm_i915_private *i915 = to_i915(crtc->base.dev);
 	struct intel_bw_state *bw_state =
 		to_intel_bw_state(i915->display.bw.obj.state);
-	struct intel_cdclk_state *cdclk_state =
-		to_intel_cdclk_state(i915->display.cdclk.obj.state);
 	struct intel_dbuf_state *dbuf_state =
 		to_intel_dbuf_state(i915->display.dbuf.obj.state);
 	struct intel_pmdemand_state *pmdemand_state =
@@ -179,9 +177,7 @@ static void intel_crtc_disable_noatomic_complete(struct intel_crtc *crtc)
 
 	intel_display_power_put_all_in_set(display, &crtc->enabled_power_domains);
 
-	cdclk_state->min_cdclk[pipe] = 0;
-	cdclk_state->min_voltage_level[pipe] = 0;
-	cdclk_state->active_pipes &= ~BIT(pipe);
+	intel_cdclk_crtc_disable_noatomic(crtc);
 
 	dbuf_state->active_pipes &= ~BIT(pipe);