drm/i915: Relocate intel_crtc_dotclock()

intel_crtc_dotclock() is a bit misplaced. In lieu of a better
place let's just move it next to its friends in intel_display.c.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220907091057.11572-2-ville.syrjala@linux.intel.com

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

@@ -324,28 +324,6 @@ static int icl_calc_tbt_pll_link(struct drm_i915_private *dev_priv,
 	}
 }
 
-int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
-{
-	int dotclock;
-
-	if (intel_crtc_has_dp_encoder(pipe_config))
-		dotclock = intel_dotclock_calculate(pipe_config->port_clock,
-						    &pipe_config->dp_m_n);
-	else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
-		dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
-	else
-		dotclock = pipe_config->port_clock;
-
-	if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
-	    !intel_crtc_has_dp_encoder(pipe_config))
-		dotclock *= 2;
-
-	if (pipe_config->pixel_multiplier)
-		dotclock /= pipe_config->pixel_multiplier;
-
-	return dotclock;
-}
-
 static void ddi_dotclock_get(struct intel_crtc_state *pipe_config)
 {
 	/* CRT dotclock is determined via other means */

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

@@ -4494,6 +4494,28 @@ int intel_dotclock_calculate(int link_freq,
 	return div_u64(mul_u32_u32(m_n->link_m, link_freq), m_n->link_n);
 }
 
+int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config)
+{
+	int dotclock;
+
+	if (intel_crtc_has_dp_encoder(pipe_config))
+		dotclock = intel_dotclock_calculate(pipe_config->port_clock,
+						    &pipe_config->dp_m_n);
+	else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24)
+		dotclock = pipe_config->port_clock * 24 / pipe_config->pipe_bpp;
+	else
+		dotclock = pipe_config->port_clock;
+
+	if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 &&
+	    !intel_crtc_has_dp_encoder(pipe_config))
+		dotclock *= 2;
+
+	if (pipe_config->pixel_multiplier)
+		dotclock /= pipe_config->pixel_multiplier;
+
+	return dotclock;
+}
+
 /* Returns the currently programmed mode of the given encoder. */
 struct drm_display_mode *
 intel_encoder_current_mode(struct intel_encoder *encoder)