drm/i915/cdclk: abstract intel_cdclk_actual() and intel_cdclk_actual_voltage_level()

Add intel_cdclk_actual() and intel_cdclk_actual_voltage_level() helpers
to avoid looking at struct intel_cdclk_state internals outside of
intel_cdclk.c.

v2: Better location (Imre)

Reviewed-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/241a9b80a8262b82fded54707ca5622af215dd86.1750847509.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

Author: jnikula

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

@@ -3840,6 +3840,16 @@ int intel_cdclk_logical(const struct intel_cdclk_state *cdclk_state)
 	return cdclk_state->logical.cdclk;
 }
 
+int intel_cdclk_actual(const struct intel_cdclk_state *cdclk_state)
+{
+	return cdclk_state->actual.cdclk;
+}
+
+int intel_cdclk_actual_voltage_level(const struct intel_cdclk_state *cdclk_state)
+{
+	return cdclk_state->actual.voltage_level;
+}
+
 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

@@ -98,6 +98,8 @@ 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_actual(const struct intel_cdclk_state *cdclk_state);
+int intel_cdclk_actual_voltage_level(const struct intel_cdclk_state *cdclk_state);
 int intel_cdclk_min_cdclk(const struct intel_cdclk_state *cdclk_state, enum pipe pipe);
 int intel_cdclk_bw_min_cdclk(const struct intel_cdclk_state *cdclk_state);
 bool intel_cdclk_pmdemand_needs_update(struct intel_atomic_state *state);

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

@@ -360,9 +360,9 @@ int intel_pmdemand_atomic_check(struct intel_atomic_state *state)
 		return PTR_ERR(new_cdclk_state);
 
 	new_pmdemand_state->params.voltage_index =
-		new_cdclk_state->actual.voltage_level;
+		intel_cdclk_actual_voltage_level(new_cdclk_state);
 	new_pmdemand_state->params.cdclk_freq_mhz =
-		DIV_ROUND_UP(new_cdclk_state->actual.cdclk, 1000);
+		DIV_ROUND_UP(intel_cdclk_actual(new_cdclk_state), 1000);
 
 	intel_pmdemand_update_max_ddiclk(display, state, new_pmdemand_state);