drm/i915/sdvo: Nuke attached_output tracking

Instead of operating on the output the user specified (via the
connector) the current code tends to operate on whichever outputs
it has detected as attached. That is not how the kms uapi is supposed
to work. So simply get rid of attached_outputs and instead directly
operate on the output the user has specified.
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230825134431.24391-2-ville.syrjala@linux.intel.com

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

@@ -103,12 +103,6 @@ struct intel_sdvo {
 	/* Pixel clock limitations reported by the SDVO device, in kHz */
 	int pixel_clock_min, pixel_clock_max;
 
-	/*
-	* For multiple function SDVO device,
-	* this is for current attached outputs.
-	*/
-	u16 attached_output;
-
 	/*
 	 * Hotplug activation bits for this device
 	 */
@@ -1223,12 +1217,13 @@ static bool intel_sdvo_set_tv_format(struct intel_sdvo *intel_sdvo,
 
 static bool
 intel_sdvo_set_output_timings_from_mode(struct intel_sdvo *intel_sdvo,
+					struct intel_sdvo_connector *intel_sdvo_connector,
 					const struct drm_display_mode *mode)
 {
 	struct intel_sdvo_dtd output_dtd;
 
 	if (!intel_sdvo_set_target_output(intel_sdvo,
-					  intel_sdvo->attached_output))
+					  intel_sdvo_connector->output_flag))
 		return false;
 
 	intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
@@ -1369,7 +1364,9 @@ static int intel_sdvo_compute_config(struct intel_encoder *encoder,
 	 * the sequence to do it. Oh well.
 	 */
 	if (IS_TV(intel_sdvo_connector)) {
-		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, mode))
+		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
+							     intel_sdvo_connector,
+							     mode))
 			return -EINVAL;
 
 		(void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
@@ -1387,7 +1384,9 @@ static int intel_sdvo_compute_config(struct intel_encoder *encoder,
 		if (ret)
 			return ret;
 
-		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo, fixed_mode))
+		if (!intel_sdvo_set_output_timings_from_mode(intel_sdvo,
+							     intel_sdvo_connector,
+							     fixed_mode))
 			return -EINVAL;
 
 		(void) intel_sdvo_get_preferred_input_mode(intel_sdvo,
@@ -1528,7 +1527,7 @@ static void intel_sdvo_pre_enable(struct intel_atomic_state *state,
 	 * channel on the motherboard.  In a two-input device, the first input
 	 * will be SDVOB and the second SDVOC.
 	 */
-	in_out.in0 = intel_sdvo->attached_output;
+	in_out.in0 = intel_sdvo_connector->output_flag;
 	in_out.in1 = 0;
 
 	intel_sdvo_set_value(intel_sdvo,
@@ -1537,7 +1536,7 @@ static void intel_sdvo_pre_enable(struct intel_atomic_state *state,
 
 	/* Set the output timings to the screen */
 	if (!intel_sdvo_set_target_output(intel_sdvo,
-					  intel_sdvo->attached_output))
+					  intel_sdvo_connector->output_flag))
 		return;
 
 	/* lvds has a special fixed output timing. */
@@ -1874,6 +1873,8 @@ static void intel_enable_sdvo(struct intel_atomic_state *state,
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = to_i915(dev);
 	struct intel_sdvo *intel_sdvo = to_sdvo(encoder);
+	struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(conn_state->connector);
 	struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc);
 	u32 temp;
 	bool input1, input2;
@@ -1903,7 +1904,7 @@ static void intel_enable_sdvo(struct intel_atomic_state *state,
 	if (0)
 		intel_sdvo_set_encoder_power_state(intel_sdvo,
 						   DRM_MODE_DPMS_ON);
-	intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo->attached_output);
+	intel_sdvo_set_active_outputs(intel_sdvo, intel_sdvo_connector->output_flag);
 
 	if (pipe_config->has_audio)
 		intel_sdvo_enable_audio(intel_sdvo, pipe_config, conn_state);
@@ -2158,8 +2159,6 @@ intel_sdvo_detect(struct drm_connector *connector, bool force)
 	if (response == 0)
 		return connector_status_disconnected;
 
-	intel_sdvo->attached_output = response;
-
 	if ((intel_sdvo_connector->output_flag & response) == 0)
 		ret = connector_status_disconnected;
 	else if (IS_TMDS(intel_sdvo_connector))
@@ -2287,6 +2286,8 @@ static const struct drm_display_mode sdvo_tv_modes[] = {
 static int intel_sdvo_get_tv_modes(struct drm_connector *connector)
 {
 	struct intel_sdvo *intel_sdvo = intel_attached_sdvo(to_intel_connector(connector));
+	struct intel_sdvo_connector *intel_sdvo_connector =
+		to_intel_sdvo_connector(connector);
 	const struct drm_connector_state *conn_state = connector->state;
 	struct intel_sdvo_sdtv_resolution_request tv_res;
 	u32 reply = 0, format_map = 0;
@@ -2304,7 +2305,7 @@ static int intel_sdvo_get_tv_modes(struct drm_connector *connector)
 	memcpy(&tv_res, &format_map,
 	       min(sizeof(format_map), sizeof(struct intel_sdvo_sdtv_resolution_request)));
 
-	if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo->attached_output))
+	if (!intel_sdvo_set_target_output(intel_sdvo, intel_sdvo_connector->output_flag))
 		return 0;
 
 	BUILD_BUG_ON(sizeof(tv_res) != 3);