drm/i915: Pass connector state to pfit calculations

Pass the entire connector state to intel_{gmch,pch}_panel_fitting().
For now we just need to get at .scaling_mode but in the future we'll
want access to the margin properties as well.

v2: Deal with intel_dp_ycbcr420_config()
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200422161917.17389-5-ville.syrjala@linux.intel.comReviewed-by: Manasi Navare <manasi.d.navare@intel.com>

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

@@ -1532,7 +1532,7 @@ static int gen11_dsi_compute_config(struct intel_encoder *encoder,
 
 	pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB;
 	intel_fixed_panel_mode(fixed_mode, adjusted_mode);
-	intel_pch_panel_fitting(pipe_config, conn_state->scaling_mode);
+	intel_pch_panel_fitting(pipe_config, conn_state);
 
 	adjusted_mode->flags = 0;
 

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

@@ -2339,9 +2339,10 @@ intel_dp_compute_link_config(struct intel_encoder *encoder,
 
 static int
 intel_dp_ycbcr420_config(struct intel_dp *intel_dp,
-			 struct drm_connector *connector,
-			 struct intel_crtc_state *crtc_state)
+			 struct intel_crtc_state *crtc_state,
+			 const struct drm_connector_state *conn_state)
 {
+	struct drm_connector *connector = conn_state->connector;
 	const struct drm_display_info *info = &connector->display_info;
 	const struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
@@ -2353,7 +2354,7 @@ intel_dp_ycbcr420_config(struct intel_dp *intel_dp,
 
 	crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
 
-	intel_pch_panel_fitting(crtc_state, DRM_MODE_SCALE_FULLSCREEN);
+	intel_pch_panel_fitting(crtc_state, conn_state);
 
 	return 0;
 }
@@ -2549,8 +2550,8 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 	if (lspcon->active)
 		lspcon_ycbcr420_config(&intel_connector->base, pipe_config);
 	else
-		ret = intel_dp_ycbcr420_config(intel_dp, &intel_connector->base,
-					       pipe_config);
+		ret = intel_dp_ycbcr420_config(intel_dp, pipe_config,
+					       conn_state);
 	if (ret)
 		return ret;
 
@@ -2567,11 +2568,9 @@ intel_dp_compute_config(struct intel_encoder *encoder,
 				       adjusted_mode);
 
 		if (HAS_GMCH(dev_priv))
-			intel_gmch_panel_fitting(pipe_config,
-						 conn_state->scaling_mode);
+			intel_gmch_panel_fitting(pipe_config, conn_state);
 		else
-			intel_pch_panel_fitting(pipe_config,
-						conn_state->scaling_mode);
+			intel_pch_panel_fitting(pipe_config, conn_state);
 	}
 
 	if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)

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

@@ -2322,9 +2322,10 @@ static bool hdmi_deep_color_possible(const struct intel_crtc_state *crtc_state,
 }
 
 static bool
-intel_hdmi_ycbcr420_config(struct drm_connector *connector,
-			   struct intel_crtc_state *config)
+intel_hdmi_ycbcr420_config(struct intel_crtc_state *crtc_state,
+			   const struct drm_connector_state *conn_state)
 {
+	struct drm_connector *connector = conn_state->connector;
 	struct drm_i915_private *i915 = to_i915(connector->dev);
 
 	if (!connector->ycbcr_420_allowed) {
@@ -2333,9 +2334,9 @@ intel_hdmi_ycbcr420_config(struct drm_connector *connector,
 		return false;
 	}
 
-	config->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
+	crtc_state->output_format = INTEL_OUTPUT_FORMAT_YCBCR420;
 
-	intel_pch_panel_fitting(config, DRM_MODE_SCALE_FULLSCREEN);
+	intel_pch_panel_fitting(crtc_state, conn_state);
 
 	return true;
 }
@@ -2466,7 +2467,7 @@ int intel_hdmi_compute_config(struct intel_encoder *encoder,
 		pipe_config->pixel_multiplier = 2;
 
 	if (drm_mode_is_420_only(&connector->display_info, adjusted_mode)) {
-		if (!intel_hdmi_ycbcr420_config(connector, pipe_config)) {
+		if (!intel_hdmi_ycbcr420_config(pipe_config, conn_state)) {
 			drm_err(&dev_priv->drm,
 				"Can't support YCBCR420 output\n");
 			return -EINVAL;

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

@@ -439,12 +439,9 @@ static int intel_lvds_compute_config(struct intel_encoder *intel_encoder,
 	if (HAS_PCH_SPLIT(dev_priv)) {
 		pipe_config->has_pch_encoder = true;
 
-		intel_pch_panel_fitting(pipe_config,
-					conn_state->scaling_mode);
+		intel_pch_panel_fitting(pipe_config, conn_state);
 	} else {
-		intel_gmch_panel_fitting(pipe_config,
-					 conn_state->scaling_mode);
-
+		intel_gmch_panel_fitting(pipe_config, conn_state);
 	}
 
 	/*

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

@@ -178,7 +178,7 @@ intel_panel_vbt_fixed_mode(struct intel_connector *connector)
 /* adjusted_mode has been preset to be the panel's fixed mode */
 void
 intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
-			int fitting_mode)
+			const struct drm_connector_state *conn_state)
 {
 	const struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
@@ -190,7 +190,7 @@ intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
 	    crtc_state->output_format != INTEL_OUTPUT_FORMAT_YCBCR420)
 		return;
 
-	switch (fitting_mode) {
+	switch (conn_state->scaling_mode) {
 	case DRM_MODE_SCALE_CENTER:
 		width = crtc_state->pipe_src_w;
 		height = crtc_state->pipe_src_h;
@@ -227,6 +227,10 @@ intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
 		}
 		break;
 
+	case DRM_MODE_SCALE_NONE:
+		WARN_ON(adjusted_mode->crtc_hdisplay != crtc_state->pipe_src_w);
+		WARN_ON(adjusted_mode->crtc_vdisplay != crtc_state->pipe_src_h);
+		/* fall through */
 	case DRM_MODE_SCALE_FULLSCREEN:
 		x = y = 0;
 		width = adjusted_mode->crtc_hdisplay;
@@ -234,7 +238,7 @@ intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
 		break;
 
 	default:
-		MISSING_CASE(fitting_mode);
+		MISSING_CASE(conn_state->scaling_mode);
 		return;
 	}
 
@@ -378,7 +382,7 @@ static void i9xx_scale_aspect(struct intel_crtc_state *crtc_state,
 }
 
 void intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
-			      int fitting_mode)
+			      const struct drm_connector_state *conn_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
@@ -390,7 +394,7 @@ void intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
 	    adjusted_mode->crtc_vdisplay == crtc_state->pipe_src_h)
 		goto out;
 
-	switch (fitting_mode) {
+	switch (conn_state->scaling_mode) {
 	case DRM_MODE_SCALE_CENTER:
 		/*
 		 * For centered modes, we have to calculate border widths &
@@ -426,8 +430,7 @@ void intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
 		}
 		break;
 	default:
-		drm_WARN(&dev_priv->drm, 1, "bad panel fit mode: %d\n",
-			 fitting_mode);
+		MISSING_CASE(conn_state->scaling_mode);
 		return;
 	}
 

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

@@ -26,9 +26,9 @@ void intel_panel_fini(struct intel_panel *panel);
 void intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode,
 			    struct drm_display_mode *adjusted_mode);
 void intel_pch_panel_fitting(struct intel_crtc_state *crtc_state,
-			     int fitting_mode);
+			     const struct drm_connector_state *conn_state);
 void intel_gmch_panel_fitting(struct intel_crtc_state *crtc_state,
-			      int fitting_mode);
+			      const struct drm_connector_state *conn_state);
 void intel_panel_set_backlight_acpi(const struct drm_connector_state *conn_state,
 				    u32 level, u32 max);
 int intel_panel_setup_backlight(struct drm_connector *connector,

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

@@ -278,11 +278,9 @@ static int intel_dsi_compute_config(struct intel_encoder *encoder,
 		intel_fixed_panel_mode(fixed_mode, adjusted_mode);
 
 		if (HAS_GMCH(dev_priv))
-			intel_gmch_panel_fitting(pipe_config,
-						 conn_state->scaling_mode);
+			intel_gmch_panel_fitting(pipe_config, conn_state);
 		else
-			intel_pch_panel_fitting(pipe_config,
-						conn_state->scaling_mode);
+			intel_pch_panel_fitting(pipe_config, conn_state);
 	}
 
 	if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN)