drm/i915/dp: move g4x_dp_set_clock() call to g4x_dp_compute_config()

It does not look like anything in intel_dp_compute_config() after the
g4x_dp_set_clock() call depends on the changes it makes, namely setting
dpll and clock_set in crtc_state. Move the call one level higher to
g4x_dp_compute_config() to reduce the clutter in
intel_dp_compute_config().

Cc: Ville Syrjala <[email protected]>
Reviewed-by: Ville Syrjälä <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Jani Nikula <[email protected]>

Author: jnikula

drivers/gpu/drm/i915/display/g4x_dp.c

@@ -55,8 +55,8 @@ const struct dpll *vlv_get_dpll(struct drm_i915_private *i915)
 	return IS_CHERRYVIEW(i915) ? &chv_dpll[0] : &vlv_dpll[0];
 }
 
-void g4x_dp_set_clock(struct intel_encoder *encoder,
-		      struct intel_crtc_state *pipe_config)
+static void g4x_dp_set_clock(struct intel_encoder *encoder,
+			     struct intel_crtc_state *pipe_config)
 {
 	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
 	const struct dpll *divisor = NULL;
@@ -1228,11 +1228,18 @@ static int g4x_dp_compute_config(struct intel_encoder *encoder,
 				 struct drm_connector_state *conn_state)
 {
 	struct drm_i915_private *i915 = to_i915(encoder->base.dev);
+	int ret;
 
 	if (HAS_PCH_SPLIT(i915) && encoder->port != PORT_A)
 		crtc_state->has_pch_encoder = true;
 
-	return intel_dp_compute_config(encoder, crtc_state, conn_state);
+	ret = intel_dp_compute_config(encoder, crtc_state, conn_state);
+	if (ret)
+		return ret;
+
+	g4x_dp_set_clock(encoder, crtc_state);
+
+	return 0;
 }
 
 static void g4x_dp_suspend_complete(struct intel_encoder *encoder)

drivers/gpu/drm/i915/display/g4x_dp.h

@@ -19,8 +19,6 @@ struct intel_encoder;
 
 #ifdef I915
 const struct dpll *vlv_get_dpll(struct drm_i915_private *i915);
-void g4x_dp_set_clock(struct intel_encoder *encoder,
-		      struct intel_crtc_state *pipe_config);
 bool g4x_dp_port_enabled(struct drm_i915_private *dev_priv,
 			 i915_reg_t dp_reg, enum port port,
 			 enum pipe *pipe);
@@ -31,10 +29,6 @@ static inline const struct dpll *vlv_get_dpll(struct drm_i915_private *i915)
 {
 	return NULL;
 }
-static inline void g4x_dp_set_clock(struct intel_encoder *encoder,
-				    struct intel_crtc_state *pipe_config)
-{
-}
 static inline bool g4x_dp_port_enabled(struct drm_i915_private *dev_priv,
 				       i915_reg_t dp_reg, int port,
 				       enum pipe *pipe)

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

@@ -3172,9 +3172,6 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 	if (pipe_config->splitter.enable)
 		pipe_config->dp_m_n.data_m *= pipe_config->splitter.link_count;
 
-	if (!HAS_DDI(dev_priv))
-		g4x_dp_set_clock(encoder, pipe_config);
-
 	intel_vrr_compute_config(pipe_config, conn_state);
 	intel_dp_compute_as_sdp(intel_dp, pipe_config);
 	intel_psr_compute_config(intel_dp, pipe_config, conn_state);