drm/i915: Move the fixed mode to intel_panel

Pave the way for sharing some logic between eDP and LVDS.

Based on earlier work by Chris Wilson <chris@chris-wilson.co.uk>

CC: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

drivers/gpu/drm/i915/intel_dp.c

@@ -121,9 +121,10 @@ intel_edp_target_clock(struct intel_encoder *intel_encoder,
 		       struct drm_display_mode *mode)
 {
 	struct intel_dp *intel_dp = container_of(intel_encoder, struct intel_dp, base);
+	struct intel_connector *intel_connector = intel_dp->attached_connector;
 
-	if (intel_dp->panel_fixed_mode)
-		return intel_dp->panel_fixed_mode->clock;
+	if (intel_connector->panel.fixed_mode)
+		return intel_connector->panel.fixed_mode->clock;
 	else
 		return mode->clock;
 }
@@ -227,12 +228,14 @@ intel_dp_mode_valid(struct drm_connector *connector,
 		    struct drm_display_mode *mode)
 {
 	struct intel_dp *intel_dp = intel_attached_dp(connector);
+	struct intel_connector *intel_connector = to_intel_connector(connector);
+	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
 
-	if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
-		if (mode->hdisplay > intel_dp->panel_fixed_mode->hdisplay)
+	if (is_edp(intel_dp) && fixed_mode) {
+		if (mode->hdisplay > fixed_mode->hdisplay)
 			return MODE_PANEL;
 
-		if (mode->vdisplay > intel_dp->panel_fixed_mode->vdisplay)
+		if (mode->vdisplay > fixed_mode->vdisplay)
 			return MODE_PANEL;
 	}
 
@@ -699,14 +702,16 @@ intel_dp_mode_fixup(struct drm_encoder *encoder,
 {
 	struct drm_device *dev = encoder->dev;
 	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	struct intel_connector *intel_connector = intel_dp->attached_connector;
 	int lane_count, clock;
 	int max_lane_count = intel_dp_max_lane_count(intel_dp);
 	int max_clock = intel_dp_max_link_bw(intel_dp) == DP_LINK_BW_2_7 ? 1 : 0;
 	int bpp, mode_rate;
 	static int bws[2] = { DP_LINK_BW_1_62, DP_LINK_BW_2_7 };
 
-	if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
-		intel_fixed_panel_mode(intel_dp->panel_fixed_mode, adjusted_mode);
+	if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
+		intel_fixed_panel_mode(intel_connector->panel.fixed_mode,
+				       adjusted_mode);
 		intel_pch_panel_fitting(dev, DRM_MODE_SCALE_FULLSCREEN,
 					mode, adjusted_mode);
 	}
@@ -2400,6 +2405,7 @@ intel_dp_detect(struct drm_connector *connector, bool force)
 static int intel_dp_get_modes(struct drm_connector *connector)
 {
 	struct intel_dp *intel_dp = intel_attached_dp(connector);
+	struct intel_connector *intel_connector = to_intel_connector(connector);
 	struct drm_device *dev = intel_dp->base.base.dev;
 	int ret;
 
@@ -2411,9 +2417,10 @@ static int intel_dp_get_modes(struct drm_connector *connector)
 		return ret;
 
 	/* if eDP has no EDID, fall back to fixed mode */
-	if (is_edp(intel_dp) && intel_dp->panel_fixed_mode) {
+	if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
 		struct drm_display_mode *mode;
-		mode = drm_mode_duplicate(dev, intel_dp->panel_fixed_mode);
+		mode = drm_mode_duplicate(dev,
+					  intel_connector->panel.fixed_mode);
 		if (mode) {
 			drm_mode_probed_add(connector, mode);
 			return 1;
@@ -2633,6 +2640,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 		return;
 	}
 	intel_encoder = &intel_dp->base;
+	intel_dp->attached_connector = intel_connector;
 
 	if (HAS_PCH_SPLIT(dev) && output_reg == PCH_DP_D)
 		if (intel_dpd_is_edp(dev))
@@ -2824,7 +2832,6 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 			if (fixed_mode)
 				fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
 		}
-		intel_dp->panel_fixed_mode = fixed_mode;
 
 		ironlake_edp_panel_vdd_off(intel_dp, false);
 	}
@@ -2832,7 +2839,7 @@ intel_dp_init(struct drm_device *dev, int output_reg, enum port port)
 	intel_encoder->hot_plug = intel_dp_hot_plug;
 
 	if (is_edp(intel_dp)) {
-		intel_panel_init(&intel_connector->panel);
+		intel_panel_init(&intel_connector->panel, fixed_mode);
 		intel_panel_setup_backlight(connector);
 	}
 

drivers/gpu/drm/i915/intel_drv.h

@@ -164,6 +164,7 @@ struct intel_encoder {
 };
 
 struct intel_panel {
+	struct drm_display_mode *fixed_mode;
 };
 
 struct intel_connector {
@@ -364,11 +365,11 @@ struct intel_dp {
 	int panel_power_cycle_delay;
 	int backlight_on_delay;
 	int backlight_off_delay;
-	struct drm_display_mode *panel_fixed_mode;  /* for eDP */
 	struct delayed_work panel_vdd_work;
 	bool want_panel_vdd;
 	struct edid *edid; /* cached EDID for eDP */
 	int edid_mode_count;
+	struct intel_connector *attached_connector;
 };
 
 static inline struct drm_crtc *
@@ -442,7 +443,8 @@ extern void intel_flush_display_plane(struct drm_i915_private *dev_priv,
 				      enum plane plane);
 
 /* intel_panel.c */
-extern int intel_panel_init(struct intel_panel *panel);
+extern int intel_panel_init(struct intel_panel *panel,
+			    struct drm_display_mode *fixed_mode);
 extern void intel_panel_fini(struct intel_panel *panel);
 
 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,

drivers/gpu/drm/i915/intel_lvds.c

@@ -44,7 +44,6 @@ 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;
 };
@@ -177,8 +176,8 @@ static void intel_disable_lvds(struct intel_encoder *encoder)
 static int intel_lvds_mode_valid(struct drm_connector *connector,
 				 struct drm_display_mode *mode)
 {
-	struct intel_lvds_connector *lvds_connector = to_lvds_connector(connector);
-	struct drm_display_mode *fixed_mode = lvds_connector->fixed_mode;
+	struct intel_connector *intel_connector = to_intel_connector(connector);
+	struct drm_display_mode *fixed_mode = intel_connector->panel.fixed_mode;
 
 	if (mode->hdisplay > fixed_mode->hdisplay)
 		return MODE_PANEL;
@@ -276,7 +275,8 @@ static bool intel_lvds_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_connector->fixed_mode, adjusted_mode);
+	intel_fixed_panel_mode(lvds_connector->base.panel.fixed_mode,
+			       adjusted_mode);
 
 	if (HAS_PCH_SPLIT(dev)) {
 		intel_pch_panel_fitting(dev, lvds_connector->fitting_mode,
@@ -463,7 +463,7 @@ static int intel_lvds_get_modes(struct drm_connector *connector)
 	if (lvds_connector->edid)
 		return drm_add_edid_modes(connector, lvds_connector->edid);
 
-	mode = drm_mode_duplicate(dev, lvds_connector->fixed_mode);
+	mode = drm_mode_duplicate(dev, lvds_connector->base.panel.fixed_mode);
 	if (mode == NULL)
 		return 0;
 
@@ -921,6 +921,7 @@ bool intel_lvds_init(struct drm_device *dev)
 	struct drm_connector *connector;
 	struct drm_encoder *encoder;
 	struct drm_display_mode *scan; /* *modes, *bios_mode; */
+	struct drm_display_mode *fixed_mode = NULL;
 	struct drm_crtc *crtc;
 	u32 lvds;
 	int pipe;
@@ -1044,20 +1045,17 @@ 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_connector->fixed_mode = drm_mode_duplicate(dev, scan);
-			intel_find_lvds_downclock(dev,
-						  lvds_connector->fixed_mode,
-						  connector);
+			fixed_mode = drm_mode_duplicate(dev, scan);
+			intel_find_lvds_downclock(dev, fixed_mode, connector);
 			goto out;
 		}
 	}
 
 	/* Failed to get EDID, what about VBT? */
 	if (dev_priv->lfp_lvds_vbt_mode) {
-		lvds_connector->fixed_mode =
-			drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
-		if (lvds_connector->fixed_mode) {
-			lvds_connector->fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
+		fixed_mode = drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
+		if (fixed_mode) {
+			fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
 			goto out;
 		}
 	}
@@ -1077,15 +1075,15 @@ bool intel_lvds_init(struct drm_device *dev)
 	crtc = intel_get_crtc_for_pipe(dev, pipe);
 
 	if (crtc && (lvds & LVDS_PORT_EN)) {
-		lvds_connector->fixed_mode = intel_crtc_mode_get(dev, crtc);
-		if (lvds_connector->fixed_mode) {
-			lvds_connector->fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
+		fixed_mode = intel_crtc_mode_get(dev, crtc);
+		if (fixed_mode) {
+			fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
 			goto out;
 		}
 	}
 
 	/* If we still don't have a mode after all that, give up. */
-	if (!lvds_connector->fixed_mode)
+	if (!fixed_mode)
 		goto failed;
 
 out:
@@ -1107,7 +1105,7 @@ out:
 	}
 	drm_sysfs_connector_add(connector);
 
-	intel_panel_init(&intel_connector->panel);
+	intel_panel_init(&intel_connector->panel, fixed_mode);
 	intel_panel_setup_backlight(connector);
 
 	return true;
@@ -1116,6 +1114,8 @@ failed:
 	DRM_DEBUG_KMS("No LVDS modes found, disabling.\n");
 	drm_connector_cleanup(connector);
 	drm_encoder_cleanup(encoder);
+	if (fixed_mode)
+		drm_mode_destroy(dev, fixed_mode);
 	kfree(lvds_encoder);
 	kfree(lvds_connector);
 	return false;

drivers/gpu/drm/i915/intel_panel.c

@@ -465,11 +465,19 @@ void intel_panel_destroy_backlight(struct drm_device *dev)
 }
 #endif
 
-int intel_panel_init(struct intel_panel *panel)
+int intel_panel_init(struct intel_panel *panel,
+		     struct drm_display_mode *fixed_mode)
 {
+	panel->fixed_mode = fixed_mode;
+
 	return 0;
 }
 
 void intel_panel_fini(struct intel_panel *panel)
 {
+	struct intel_connector *intel_connector =
+		container_of(panel, struct intel_connector, panel);
+
+	if (panel->fixed_mode)
+		drm_mode_destroy(intel_connector->base.dev, panel->fixed_mode);
 }