[PATCH v6 04/12] drm/i915: Use per-connector scaling mode property

[Maarten Lankhorst]

None of the intel connectors can use all types of scaling modes,
so only try the ones that are possible. This is another preparation
for connectors towards conversion to atomic.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c   | 29 ++++++++++++-----------------
 drivers/gpu/drm/i915/intel_dsi.c  | 28 +++++++++++-----------------
 drivers/gpu/drm/i915/intel_lvds.c | 17 ++++++-----------
 3 files changed, 29 insertions(+), 45 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index ea4366b264f1..8eb381ebbea6 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4884,18 +4884,7 @@ intel_dp_set_property(struct drm_connector *connector,
 		goto done;
 	}
 
-	if (is_edp(intel_dp) &&
-	    property == connector->dev->mode_config.scaling_mode_property) {
-		if (val == DRM_MODE_SCALE_NONE) {
-			DRM_DEBUG_KMS("no scaling not supported\n");
-			return -EINVAL;
-		}
-		if (HAS_GMCH_DISPLAY(dev_priv) &&
-		    val == DRM_MODE_SCALE_CENTER) {
-			DRM_DEBUG_KMS("centering not supported\n");
-			return -EINVAL;
-		}
-
+	if (property == connector->scaling_mode_property) {
 		if (connector->state->scaling_mode == val) {
 			/* the eDP scaling property is not changed */
 			return 0;
@@ -5178,17 +5167,23 @@ bool intel_dp_is_edp(struct drm_i915_private *dev_priv, enum port port)
 static void
 intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connector)
 {
+	struct drm_i915_private *dev_priv = to_i915(connector->dev);
+
 	intel_attach_force_audio_property(connector);
 	intel_attach_broadcast_rgb_property(connector);
 	intel_dp->color_range_auto = true;
 
 	if (is_edp(intel_dp)) {
-		drm_mode_create_scaling_mode_property(connector->dev);
-		drm_object_attach_property(
-			&connector->base,
-			connector->dev->mode_config.scaling_mode_property,
-			DRM_MODE_SCALE_ASPECT);
+		u32 allowed_scalers;
+
+		allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT) | BIT(DRM_MODE_SCALE_FULLSCREEN);
+		if (!HAS_GMCH_DISPLAY(dev_priv))
+			allowed_scalers |= BIT(DRM_MODE_SCALE_CENTER);
+
+		drm_mode_connector_attach_scaling_mode_property(connector, allowed_scalers);
+
 		connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;
+
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index ec141eb59e6d..8617d996abe5 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -1591,7 +1591,6 @@ static int intel_dsi_set_property(struct drm_connector *connector,
 				  struct drm_property *property,
 				  uint64_t val)
 {
-	struct drm_device *dev = connector->dev;
 	struct drm_crtc *crtc;
 	int ret;
 
@@ -1599,17 +1598,7 @@ static int intel_dsi_set_property(struct drm_connector *connector,
 	if (ret)
 		return ret;
 
-	if (property == dev->mode_config.scaling_mode_property) {
-		if (val == DRM_MODE_SCALE_NONE) {
-			DRM_DEBUG_KMS("no scaling not supported\n");
-			return -EINVAL;
-		}
-		if (HAS_GMCH_DISPLAY(to_i915(dev)) &&
-		    val == DRM_MODE_SCALE_CENTER) {
-			DRM_DEBUG_KMS("centering not supported\n");
-			return -EINVAL;
-		}
-
+	if (property == connector->scaling_mode_property) {
 		if (connector->state->scaling_mode == val)
 			return 0;
 
@@ -1672,13 +1661,18 @@ static const struct drm_connector_funcs intel_dsi_connector_funcs = {
 
 static void intel_dsi_add_properties(struct intel_connector *connector)
 {
-	struct drm_device *dev = connector->base.dev;
+	struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
 
 	if (connector->panel.fixed_mode) {
-		drm_mode_create_scaling_mode_property(dev);
-		drm_object_attach_property(&connector->base.base,
-					   dev->mode_config.scaling_mode_property,
-					   DRM_MODE_SCALE_ASPECT);
+		u32 allowed_scalers;
+
+		allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT) | BIT(DRM_MODE_SCALE_FULLSCREEN);
+		if (!HAS_GMCH_DISPLAY(dev_priv))
+			allowed_scalers |= BIT(DRM_MODE_SCALE_CENTER);
+
+		drm_mode_connector_attach_scaling_mode_property(&connector->base,
+								allowed_scalers);
+
 		connector->base.state->scaling_mode = DRM_MODE_SCALE_ASPECT;
 	}
 }
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index a14bdefdcb8f..a3f9216e32eb 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -602,16 +602,10 @@ static int intel_lvds_set_property(struct drm_connector *connector,
 				   struct drm_property *property,
 				   uint64_t value)
 {
-	struct drm_device *dev = connector->dev;
 
-	if (property == dev->mode_config.scaling_mode_property) {
+	if (property == connector->scaling_mode_property) {
 		struct drm_crtc *crtc;
 
-		if (value == DRM_MODE_SCALE_NONE) {
-			DRM_DEBUG_KMS("no scaling not supported\n");
-			return -EINVAL;
-		}
-
 		if (connector->state->scaling_mode == value) {
 			/* the LVDS scaling property is not changed */
 			return 0;
@@ -987,6 +981,7 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
 	u32 lvds;
 	int pipe;
 	u8 pin;
+	u32 allowed_scalers;
 
 	if (!intel_lvds_supported(dev_priv))
 		return;
@@ -1082,10 +1077,10 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
 	lvds_encoder->reg = lvds_reg;
 
 	/* create the scaling mode property */
-	drm_mode_create_scaling_mode_property(dev);
-	drm_object_attach_property(&connector->base,
-				      dev->mode_config.scaling_mode_property,
-				      DRM_MODE_SCALE_ASPECT);
+	allowed_scalers = BIT(DRM_MODE_SCALE_ASPECT);
+	allowed_scalers |= BIT(DRM_MODE_SCALE_FULLSCREEN);
+	allowed_scalers |= BIT(DRM_MODE_SCALE_CENTER);
+	drm_mode_connector_attach_scaling_mode_property(connector, allowed_scalers);
 	connector->state->scaling_mode = DRM_MODE_SCALE_ASPECT;
 
 	intel_lvds_pps_get_hw_state(dev_priv, &lvds_encoder->init_pps);
-- 
2.9.3