drm/i915/sdvo: Fix multi function encoder stuff

SDVO encoders can have multiple different types of outputs hanging off
them. Currently the code tries to muck around with various is_foo
flags in the encoder to figure out which type its driving. That doesn't
work with atomic and other stuff, so let's nuke those flags and just
look at which type of connector we're actually dealing with.

The is_hdmi we'll need as that's not discoverable via the output flags,
but we'll just move it under the connector.

We'll also move the sdvo fixed mode handling out from the .get_modes()
hook into the sdvo lvds init function so that we can bail out properly
if there is no fixed mode to be found.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180917151504.8754-1-ville.syrjala@linux.intel.comReviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/i915/intel_sdvo.c

@@ -99,31 +99,12 @@ struct intel_sdvo {
 	 */
 	uint16_t hotplug_active;
 
-	/**
-	 * This is set if we're going to treat the device as TV-out.
-	 *
-	 * While we have these nice friendly flags for output types that ought
-	 * to decide this for us, the S-Video output on our HDMI+S-Video card
-	 * shows up as RGB1 (VGA).
-	 */
-	bool is_tv;
-
 	enum port port;
 
-	/**
-	 * This is set if we treat the device as HDMI, instead of DVI.
-	 */
-	bool is_hdmi;
 	bool has_hdmi_monitor;
 	bool has_hdmi_audio;
 	bool rgb_quant_range_selectable;
 
-	/**
-	 * This is set if we detect output of sdvo device as LVDS and
-	 * have a valid fixed mode to use with the panel.
-	 */
-	bool is_lvds;
-
 	/**
 	 * This is sdvo fixed pannel mode pointer
 	 */
@@ -172,6 +153,11 @@ struct intel_sdvo_connector {
 
 	/* this is to get the range of margin.*/
 	u32 max_hscan, max_vscan;
+
+	/**
+	 * This is set if we treat the device as HDMI, instead of DVI.
+	 */
+	bool is_hdmi;
 };
 
 struct intel_sdvo_connector_state {
@@ -766,6 +752,7 @@ static bool intel_sdvo_get_input_timing(struct intel_sdvo *intel_sdvo,
 
 static bool
 intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
+					 struct intel_sdvo_connector *intel_sdvo_connector,
 					 uint16_t clock,
 					 uint16_t width,
 					 uint16_t height)
@@ -778,7 +765,7 @@ intel_sdvo_create_preferred_input_timing(struct intel_sdvo *intel_sdvo,
 	args.height = height;
 	args.interlace = 0;
 
-	if (intel_sdvo->is_lvds &&
+	if (IS_LVDS(intel_sdvo_connector) &&
 	   (intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
 	    intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
 		args.scaled = 1;
@@ -1067,6 +1054,7 @@ intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
  */
 static bool
 intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
+				    struct intel_sdvo_connector *intel_sdvo_connector,
 				    const struct drm_display_mode *mode,
 				    struct drm_display_mode *adjusted_mode)
 {
@@ -1077,6 +1065,7 @@ intel_sdvo_get_preferred_input_mode(struct intel_sdvo *intel_sdvo,
 		return false;
 
 	if (!intel_sdvo_create_preferred_input_timing(intel_sdvo,
+						      intel_sdvo_connector,
 						      mode->clock / 10,
 						      mode->hdisplay,
 						      mode->vdisplay))
@@ -1127,6 +1116,8 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
 	struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
 	struct intel_sdvo_connector_state *intel_sdvo_state =
 		to_intel_sdvo_connector_state(conn_state);
+	struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(conn_state->connector);
 	struct drm_display_mode *adjusted_mode = &pipe_config->base.adjusted_mode;
 	struct drm_display_mode *mode = &pipe_config->base.mode;
 
@@ -1142,20 +1133,22 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
 	 * timings, even though this isn't really the right place in
 	 * the sequence to do it. Oh well.
 	 */
-	if (intel_sdvo->is_tv) {
+	if (IS_TV(intel_sdvo_connector)) {
 		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
 			return false;
 
 		(void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
+							   intel_sdvo_connector,
 							   mode,
 							   adjusted_mode);
 		pipe_config->sdvo_tv_clock = true;
-	} else if (intel_sdvo->is_lvds) {
+	} else if (IS_LVDS(intel_sdvo_connector)) {
 		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
 							     intel_sdvo->sdvo_lvds_fixed_mode))
 			return false;
 
 		(void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
+							   intel_sdvo_connector,
 							   mode,
 							   adjusted_mode);
 	}
@@ -1194,11 +1187,11 @@ static bool intel_sdvo_compute_config(struct intel_encoder *encoder,
 	}
 
 	/* Clock computation needs to happen after pixel multiplier. */
-	if (intel_sdvo->is_tv)
+	if (IS_TV(intel_sdvo_connector))
 		i9xx_adjust_sdvo_tv_clock(pipe_config);
 
 	/* Set user selected PAR to incoming mode's member */
-	if (intel_sdvo->is_hdmi)
+	if (intel_sdvo_connector->is_hdmi)
 		adjusted_mode->picture_aspect_ratio = conn_state->picture_aspect_ratio;
 
 	return true;
@@ -1275,6 +1268,8 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
 	const struct drm_display_mode *adjusted_mode = &crtc_state->base.adjusted_mode;
 	const struct intel_sdvo_connector_state *sdvo_state =
 		to_intel_sdvo_connector_state(conn_state);
+	const struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(conn_state->connector);
 	const struct drm_display_mode *mode = &crtc_state->base.mode;
 	struct intel_sdvo *intel_sdvo = to_sdvo(intel_encoder);
 	u32 sdvox;
@@ -1304,7 +1299,7 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
 		return;
 
 	/* lvds has a special fixed output timing. */
-	if (intel_sdvo->is_lvds)
+	if (IS_LVDS(intel_sdvo_connector))
 		intel_sdvo_get_dtd_from_mode(&output_dtd,
 					     intel_sdvo->sdvo_lvds_fixed_mode);
 	else
@@ -1325,13 +1320,13 @@ static void intel_sdvo_pre_enable(struct intel_encoder *intel_encoder,
 	} else
 		intel_sdvo_set_encode(intel_sdvo, SDVO_ENCODE_DVI);
 
-	if (intel_sdvo->is_tv &&
+	if (IS_TV(intel_sdvo_connector) &&
 	    !intel_sdvo_set_tv_format(intel_sdvo, conn_state))
 		return;
 
 	intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
 
-	if (intel_sdvo->is_tv || intel_sdvo->is_lvds)
+	if (IS_TV(intel_sdvo_connector) || IS_LVDS(intel_sdvo_connector))
 		input_dtd.part2.sdvo_flags = intel_sdvo->dtd_sdvo_flags;
 	if (!intel_sdvo_set_input_timing(intel_sdvo, &input_dtd))
 		DRM_INFO("Setting input timings on %s failed\n",
@@ -1630,6 +1625,8 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
 		      struct drm_display_mode *mode)
 {
 	struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
+	struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(connector);
 	int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
 
 	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
@@ -1644,7 +1641,7 @@ intel_sdvo_mode_valid(struct drm_connector *connector,
 	if (mode->clock > max_dotclk)
 		return MODE_CLOCK_HIGH;
 
-	if (intel_sdvo->is_lvds) {
+	if (IS_LVDS(intel_sdvo_connector)) {
 		if (mode->hdisplay > intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
 			return MODE_PANEL;
 
@@ -1759,6 +1756,8 @@ static enum drm_connector_status
 intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
 {
 	struct intel_sdvo *intel_sdvo = intel_attached_sdvo(connector);
+	struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(connector);
 	enum drm_connector_status status;
 	struct edid *edid;
 
@@ -1797,7 +1796,7 @@ intel_sdvo_tmds_sink_detect(struct drm_connector *connector)
 		/* DDC bus is shared, match EDID to connector type */
 		if (edid->input & DRM_EDID_INPUT_DIGITAL) {
 			status = connector_status_connected;
-			if (intel_sdvo->is_hdmi) {
+			if (intel_sdvo_connector->is_hdmi) {
 				intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
 				intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
 				intel_sdvo->rgb_quant_range_selectable =
@@ -1875,17 +1874,6 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
 			ret = connector_status_connected;
 	}
 
-	/* May update encoder flag for like clock for SDVO TV, etc.*/
-	if (ret == connector_status_connected) {
-		intel_sdvo->is_tv = false;
-		intel_sdvo->is_lvds = false;
-
-		if (response & SDVO_TV_MASK)
-			intel_sdvo->is_tv = true;
-		if (response & SDVO_LVDS_MASK)
-			intel_sdvo->is_lvds = intel_sdvo->sdvo_lvds_fixed_mode != NULL;
-	}
-
 	return ret;
 }
 
@@ -2054,16 +2042,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 	 * arranged in priority order.
 	 */
 	intel_ddc_get_modes(connector, &intel_sdvo->ddc);
-
-	list_for_each_entry(newmode, &connector->probed_modes, head) {
-		if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
-			intel_sdvo->sdvo_lvds_fixed_mode =
-				drm_mode_duplicate(connector->dev, newmode);
-
-			intel_sdvo->is_lvds = true;
-			break;
-		}
-	}
 }
 
 static int intel_sdvo_get_modes(struct drm_connector *connector)
@@ -2555,7 +2533,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 	if (INTEL_GEN(dev_priv) >= 4 &&
 	    intel_sdvo_is_hdmi_connector(intel_sdvo, device)) {
 		connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
-		intel_sdvo->is_hdmi = true;
+		intel_sdvo_connector->is_hdmi = true;
 	}
 
 	if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
@@ -2563,7 +2541,7 @@ intel_sdvo_dvi_init(struct intel_sdvo *intel_sdvo, int device)
 		return false;
 	}
 
-	if (intel_sdvo->is_hdmi)
+	if (intel_sdvo_connector->is_hdmi)
 		intel_sdvo_add_hdmi_properties(intel_sdvo, intel_sdvo_connector);
 
 	return true;
@@ -2591,8 +2569,6 @@ intel_sdvo_tv_init(struct intel_sdvo *intel_sdvo, int type)
 	intel_sdvo->controlled_output |= type;
 	intel_sdvo_connector->output_flag = type;
 
-	intel_sdvo->is_tv = true;
-
 	if (intel_sdvo_connector_init(intel_sdvo_connector, intel_sdvo) < 0) {
 		kfree(intel_sdvo_connector);
 		return false;
@@ -2654,6 +2630,7 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
 	struct drm_connector *connector;
 	struct intel_connector *intel_connector;
 	struct intel_sdvo_connector *intel_sdvo_connector;
+	struct drm_display_mode *mode;
 
 	DRM_DEBUG_KMS("initialising LVDS device %d\n", device);
 
@@ -2682,6 +2659,19 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
 	if (!intel_sdvo_create_enhance_property(intel_sdvo, intel_sdvo_connector))
 		goto err;
 
+	intel_sdvo_get_lvds_modes(connector);
+
+	list_for_each_entry(mode, &connector->probed_modes, head) {
+		if (mode->type & DRM_MODE_TYPE_PREFERRED) {
+			intel_sdvo->sdvo_lvds_fixed_mode =
+				drm_mode_duplicate(connector->dev, mode);
+			break;
+		}
+	}
+
+	if (!intel_sdvo->sdvo_lvds_fixed_mode)
+		goto err;
+
 	return true;
 
 err:
@@ -2692,9 +2682,6 @@ intel_sdvo_lvds_init(struct intel_sdvo *intel_sdvo, int device)
 static bool
 intel_sdvo_output_setup(struct intel_sdvo *intel_sdvo, uint16_t flags)
 {
-	intel_sdvo->is_tv = false;
-	intel_sdvo->is_lvds = false;
-
 	/* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
 
 	if (flags & SDVO_OUTPUT_TMDS0)