[Intel-gfx] [PATCH 04/10] drm/i915/lvds: Move some connector specific info across from the encoder

Chris Wilson chris at chris-wilson.co.uk
Fri Apr 22 11:19:12 CEST 2011


As there is 1:1 mapping between encoder and connector for the LVDS, the
goal is to simply reduce the amount of noise within the connector
functions, i.e. we split the encoder/connector for LVDS as best we can
and try to only operate on the LVDS connector from the connector funcs
and the LVDS encoder form the encoder funcs.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/intel_lvds.c |  101 ++++++++++++++++++-------------------
 1 files changed, 50 insertions(+), 51 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index e0ada0c..f87adaa 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -41,23 +41,24 @@
 #include <linux/acpi.h>
 
 /* Private structure for the integrated LVDS support */
-struct intel_lvds_encoder {
-	struct intel_encoder base;
+struct intel_lvds_connector {
+	struct intel_connector base;
 
+	struct notifier_block lid_notifier;
+	struct drm_display_mode *fixed_mode;
 	struct edid *edid;
 
 	int fitting_mode;
+};
+
+struct intel_lvds_encoder {
+	struct intel_encoder base;
+
 	u32 pfit_control;
 	u32 pfit_pgm_ratios;
 	bool pfit_dirty;
 
-	struct drm_display_mode *fixed_mode;
-};
-
-struct intel_lvds_connector {
-	struct intel_connector base;
-
-	struct notifier_block lid_notifier;
+	struct intel_lvds_connector *attached_connector;
 };
 
 static struct intel_lvds_encoder *to_lvds_encoder(struct drm_encoder *encoder)
@@ -70,12 +71,6 @@ static struct intel_lvds_connector *to_lvds_connector(struct drm_connector *conn
 	return container_of(connector, struct intel_lvds_connector, base.base);
 }
 
-static struct intel_lvds_encoder *intel_attached_lvds(struct drm_connector *connector)
-{
-	return container_of(intel_attached_encoder(connector),
-			    struct intel_lvds_encoder, base);
-}
-
 /**
  * Sets the power state for the panel.
  */
@@ -165,8 +160,8 @@ static void intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode)
 static int intel_lvds_connector_mode_valid(struct drm_connector *connector,
 					   struct drm_display_mode *mode)
 {
-	struct intel_lvds_encoder *lvds_encoder = intel_attached_lvds(connector);
-	struct drm_display_mode *fixed_mode = lvds_encoder->fixed_mode;
+	struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
+	struct drm_display_mode *fixed_mode = lvds_connector->fixed_mode;
 
 	if (mode->hdisplay > fixed_mode->hdisplay)
 		return MODE_PANEL;
@@ -240,6 +235,7 @@ static bool intel_lvds_encoder_mode_fixup(struct drm_encoder *encoder,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crtc *intel_crtc = to_intel_crtc(encoder->crtc);
 	struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(encoder);
+	struct intel_lvds_connector *lvds_connector = lvds_encoder->attached_connector;
 	struct drm_encoder *tmp_encoder;
 	u32 pfit_control = 0, pfit_pgm_ratios = 0, border = 0;
 	int pipe;
@@ -265,10 +261,10 @@ static bool intel_lvds_encoder_mode_fixup(struct drm_encoder *encoder,
 	 * with the panel scaling set up to source from the H/VDisplay
 	 * of the original mode.
 	 */
-	intel_fixed_panel_mode(lvds_encoder->fixed_mode, adjusted_mode);
+	intel_fixed_panel_mode(lvds_connector->fixed_mode, adjusted_mode);
 
 	if (HAS_PCH_SPLIT(dev)) {
-		intel_pch_panel_fitting(dev, lvds_encoder->fitting_mode,
+		intel_pch_panel_fitting(dev, lvds_connector->fitting_mode,
 					mode, adjusted_mode);
 		return true;
 	}
@@ -292,7 +288,7 @@ static bool intel_lvds_encoder_mode_fixup(struct drm_encoder *encoder,
 	for_each_pipe(pipe)
 		I915_WRITE(BCLRPAT(pipe), 0);
 
-	switch (lvds_encoder->fitting_mode) {
+	switch (lvds_connector->fitting_mode) {
 	case DRM_MODE_SCALE_CENTER:
 		/*
 		 * For centered modes, we have to calculate border widths &
@@ -498,14 +494,14 @@ intel_lvds_connector_detect(struct drm_connector *connector, bool force)
  */
 static int intel_lvds_connector_get_modes(struct drm_connector *connector)
 {
-	struct intel_lvds_encoder *lvds_encoder = intel_attached_lvds(connector);
+	struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
 	struct drm_device *dev = connector->dev;
 	struct drm_display_mode *mode;
 
-	if (lvds_encoder->edid)
-		return drm_add_edid_modes(connector, lvds_encoder->edid);
+	if (lvds_connector->edid)
+		return drm_add_edid_modes(connector, lvds_connector->edid);
 
-	mode = drm_mode_duplicate(dev, lvds_encoder->fixed_mode);
+	mode = drm_mode_duplicate(dev, lvds_connector->fixed_mode);
 	if (mode == NULL)
 		return 0;
 
@@ -602,29 +598,31 @@ static int intel_lvds_connector_set_property(struct drm_connector *connector,
 					     struct drm_property *property,
 					     uint64_t value)
 {
-	struct intel_lvds_encoder *lvds_encoder = intel_attached_lvds(connector);
+	struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
 	struct drm_device *dev = connector->dev;
 
 	if (property == dev->mode_config.scaling_mode_property) {
-		struct drm_crtc *crtc = lvds_encoder->base.base.crtc;
+		struct drm_crtc *crtc;
 
 		if (value == DRM_MODE_SCALE_NONE) {
 			DRM_DEBUG_KMS("no scaling not supported\n");
 			return -EINVAL;
 		}
 
-		if (lvds_encoder->fitting_mode == value) {
+		if (lvds_connector->fitting_mode == value) {
 			/* the LVDS scaling property is not changed */
 			return 0;
 		}
-		lvds_encoder->fitting_mode = value;
+		lvds_connector->fitting_mode = value;
+
+		crtc = intel_attached_encoder(connector)->base.crtc;
 		if (crtc && crtc->enabled) {
 			/*
 			 * If the CRTC is enabled, the display will be changed
 			 * according to the new panel fitting mode.
 			 */
 			drm_crtc_helper_set_mode(crtc, &crtc->mode,
-				crtc->x, crtc->y, crtc->fb);
+						 crtc->x, crtc->y, crtc->fb);
 		}
 	}
 
@@ -891,6 +889,8 @@ bool intel_lvds_init(struct drm_device *dev)
 		return false;
 	}
 
+	lvds_encoder->attached_connector = lvds_connector;
+
 	if (!HAS_PCH_SPLIT(dev)) {
 		lvds_encoder->pfit_control = I915_READ(PFIT_CONTROL);
 	}
@@ -930,7 +930,7 @@ bool intel_lvds_init(struct drm_device *dev)
 	drm_connector_attach_property(&lvds_connector->base.base,
 				      dev->mode_config.scaling_mode_property,
 				      DRM_MODE_SCALE_ASPECT);
-	lvds_encoder->fitting_mode = DRM_MODE_SCALE_ASPECT;
+	lvds_connector->fitting_mode = DRM_MODE_SCALE_ASPECT;
 
 	/*
 	 * LVDS discovery:
@@ -952,19 +952,18 @@ bool intel_lvds_init(struct drm_device *dev)
 	 * Attempt to get the fixed panel mode from DDC.  Assume that the
 	 * preferred mode is the right one.
 	 */
-	lvds_encoder->edid = drm_get_edid(connector,
-					  &dev_priv->gmbus[pin].adapter);
-	if (lvds_encoder->edid) {
-		if (drm_add_edid_modes(connector,
-				       lvds_encoder->edid)) {
+	lvds_connector->edid = drm_get_edid(connector,
+					    &dev_priv->gmbus[pin].adapter);
+	if (lvds_connector->edid) {
+		if (drm_add_edid_modes(connector, lvds_connector->edid)) {
 			drm_mode_connector_update_edid_property(connector,
-								lvds_encoder->edid);
+								lvds_connector->edid);
 		} else {
-			kfree(lvds_encoder->edid);
-			lvds_encoder->edid = NULL;
+			kfree(lvds_connector->edid);
+			lvds_connector->edid = NULL;
 		}
 	}
-	if (!lvds_encoder->edid) {
+	if (!lvds_connector->edid) {
 		/* Didn't get an EDID, so
 		 * Set wide sync ranges so we get all modes
 		 * handed to valid_mode for checking
@@ -977,10 +976,10 @@ bool intel_lvds_init(struct drm_device *dev)
 
 	list_for_each_entry(scan, &connector->probed_modes, head) {
 		if (scan->type & DRM_MODE_TYPE_PREFERRED) {
-			lvds_encoder->fixed_mode =
+			lvds_connector->fixed_mode =
 				drm_mode_duplicate(dev, scan);
 			intel_find_lvds_downclock(dev,
-						  lvds_encoder->fixed_mode,
+						  lvds_connector->fixed_mode,
 						  connector);
 			goto out;
 		}
@@ -996,10 +995,10 @@ bool intel_lvds_init(struct drm_device *dev)
 		if (drm_mode_parse_command_line_for_connector(i915_lvds_fixed_mode,
 							      connector,
 							      &mode)) {
-			lvds_encoder->fixed_mode =
+			lvds_connector->fixed_mode =
 				drm_mode_create_from_cmdline_mode(dev, &mode);
-			if (lvds_encoder->fixed_mode) {
-				lvds_encoder->fixed_mode->type |=
+			if (lvds_connector->fixed_mode) {
+				lvds_connector->fixed_mode->type |=
 					DRM_MODE_TYPE_PREFERRED;
 				goto out;
 			}
@@ -1008,10 +1007,10 @@ bool intel_lvds_init(struct drm_device *dev)
 
 	/* Failed to get EDID, no override, what about VBT? */
 	if (dev_priv->lfp_lvds_vbt_mode) {
-		lvds_encoder->fixed_mode =
+		lvds_connector->fixed_mode =
 			drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
-		if (lvds_encoder->fixed_mode) {
-			lvds_encoder->fixed_mode->type |=
+		if (lvds_connector->fixed_mode) {
+			lvds_connector->fixed_mode->type |=
 				DRM_MODE_TYPE_PREFERRED;
 			goto out;
 		}
@@ -1032,16 +1031,16 @@ bool intel_lvds_init(struct drm_device *dev)
 	crtc = intel_get_crtc_for_pipe(dev, pipe);
 
 	if (crtc && (lvds & LVDS_PORT_EN)) {
-		lvds_encoder->fixed_mode = intel_crtc_mode_get(dev, crtc);
-		if (lvds_encoder->fixed_mode) {
-			lvds_encoder->fixed_mode->type |=
+		lvds_connector->fixed_mode = intel_crtc_mode_get(dev, crtc);
+		if (lvds_connector->fixed_mode) {
+			lvds_connector->fixed_mode->type |=
 				DRM_MODE_TYPE_PREFERRED;
 			goto out;
 		}
 	}
 
 	/* If we still don't have a mode after all that, give up. */
-	if (!lvds_encoder->fixed_mode)
+	if (!lvds_connector->fixed_mode)
 		goto failed;
 
 out:
-- 
1.7.4.1




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