drm/i915: Give encoders useful names

Rather than let the core generate usless encoder names, let's pass in
something that actually identifies the piece of hardware we're dealing
with.

v2: Use 'DSI %c' instead of 'MIPI %c' for DSI encoders (Jani)
v3: Use port_name() in DSI code since we have it

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464371966-15190-7-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>

drivers/gpu/drm/i915/intel_crt.c

@@ -839,7 +839,7 @@ void intel_crt_init(struct drm_device *dev)
 			   &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
 
 	drm_encoder_init(dev, &crt->base.base, &intel_crt_enc_funcs,
-			 DRM_MODE_ENCODER_DAC, NULL);
+			 DRM_MODE_ENCODER_DAC, "CRT");
 
 	intel_connector_attach_encoder(intel_connector, &crt->base);
 

drivers/gpu/drm/i915/intel_ddi.c

@@ -2347,7 +2347,7 @@ void intel_ddi_init(struct drm_device *dev, enum port port)
 	encoder = &intel_encoder->base;
 
 	drm_encoder_init(dev, encoder, &intel_ddi_funcs,
-			 DRM_MODE_ENCODER_TMDS, NULL);
+			 DRM_MODE_ENCODER_TMDS, "DDI %c", port_name(port));
 
 	intel_encoder->compute_config = intel_ddi_compute_config;
 	intel_encoder->enable = intel_enable_ddi;

drivers/gpu/drm/i915/intel_dp.c

@@ -5590,7 +5590,7 @@ intel_dp_init(struct drm_device *dev,
 	encoder = &intel_encoder->base;
 
 	if (drm_encoder_init(dev, &intel_encoder->base, &intel_dp_enc_funcs,
-			     DRM_MODE_ENCODER_TMDS, NULL))
+			     DRM_MODE_ENCODER_TMDS, "DP %c", port_name(port)))
 		goto err_encoder_init;
 
 	intel_encoder->compute_config = intel_dp_compute_config;

drivers/gpu/drm/i915/intel_dp_mst.c

@@ -534,7 +534,7 @@ intel_dp_create_fake_mst_encoder(struct intel_digital_port *intel_dig_port, enum
 	intel_mst->primary = intel_dig_port;
 
 	drm_encoder_init(dev, &intel_encoder->base, &intel_dp_mst_enc_funcs,
-			 DRM_MODE_ENCODER_DPMST, NULL);
+			 DRM_MODE_ENCODER_DPMST, "DP-MST %c", pipe_name(pipe));
 
 	intel_encoder->type = INTEL_OUTPUT_DP_MST;
 	intel_encoder->crtc_mask = 0x7;

drivers/gpu/drm/i915/intel_dsi.c

@@ -1450,7 +1450,7 @@ void intel_dsi_init(struct drm_device *dev)
 	connector = &intel_connector->base;
 
 	drm_encoder_init(dev, encoder, &intel_dsi_funcs, DRM_MODE_ENCODER_DSI,
-			 NULL);
+			 "DSI %c", port_name(port));
 
 	intel_encoder->compute_config = intel_dsi_compute_config;
 	intel_encoder->pre_enable = intel_dsi_pre_enable;

drivers/gpu/drm/i915/intel_dvo.c

@@ -406,6 +406,18 @@ intel_dvo_get_current_mode(struct drm_connector *connector)
 	return mode;
 }
 
+static char intel_dvo_port_name(i915_reg_t dvo_reg)
+{
+	if (i915_mmio_reg_equal(dvo_reg, DVOA))
+		return 'A';
+	else if (i915_mmio_reg_equal(dvo_reg, DVOB))
+		return 'B';
+	else if (i915_mmio_reg_equal(dvo_reg, DVOC))
+		return 'C';
+	else
+		return '?';
+}
+
 void intel_dvo_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -428,8 +440,6 @@ void intel_dvo_init(struct drm_device *dev)
 	intel_dvo->attached_connector = intel_connector;
 
 	intel_encoder = &intel_dvo->base;
-	drm_encoder_init(dev, &intel_encoder->base,
-			 &intel_dvo_enc_funcs, encoder_type, NULL);
 
 	intel_encoder->disable = intel_disable_dvo;
 	intel_encoder->enable = intel_enable_dvo;
@@ -496,6 +506,10 @@ void intel_dvo_init(struct drm_device *dev)
 		if (!dvoinit)
 			continue;
 
+		drm_encoder_init(dev, &intel_encoder->base,
+				 &intel_dvo_enc_funcs, encoder_type,
+				 "DVO %c", intel_dvo_port_name(dvo->dvo_reg));
+
 		intel_encoder->type = INTEL_OUTPUT_DVO;
 		intel_encoder->crtc_mask = (1 << 0) | (1 << 1);
 		switch (dvo->type) {

drivers/gpu/drm/i915/intel_hdmi.c

@@ -1945,7 +1945,7 @@ void intel_hdmi_init(struct drm_device *dev,
 	intel_encoder = &intel_dig_port->base;
 
 	drm_encoder_init(dev, &intel_encoder->base, &intel_hdmi_enc_funcs,
-			 DRM_MODE_ENCODER_TMDS, NULL);
+			 DRM_MODE_ENCODER_TMDS, "HDMI %c", port_name(port));
 
 	intel_encoder->compute_config = intel_hdmi_compute_config;
 	if (HAS_PCH_SPLIT(dev)) {

drivers/gpu/drm/i915/intel_lvds.c

@@ -978,7 +978,7 @@ void intel_lvds_init(struct drm_device *dev)
 			   DRM_MODE_CONNECTOR_LVDS);
 
 	drm_encoder_init(dev, &intel_encoder->base, &intel_lvds_enc_funcs,
-			 DRM_MODE_ENCODER_LVDS, NULL);
+			 DRM_MODE_ENCODER_LVDS, "LVDS");
 
 	intel_encoder->enable = intel_enable_lvds;
 	intel_encoder->pre_enable = intel_pre_enable_lvds;

drivers/gpu/drm/i915/intel_sdvo.c

@@ -2981,7 +2981,7 @@ bool intel_sdvo_init(struct drm_device *dev,
 	intel_encoder = &intel_sdvo->base;
 	intel_encoder->type = INTEL_OUTPUT_SDVO;
 	drm_encoder_init(dev, &intel_encoder->base, &intel_sdvo_enc_funcs, 0,
-			 NULL);
+			 "SDVO %c", port_name(port));
 
 	/* Read the regs to test if we can talk to the device */
 	for (i = 0; i < 0x40; i++) {

drivers/gpu/drm/i915/intel_tv.c

@@ -1591,7 +1591,7 @@ intel_tv_init(struct drm_device *dev)
 			   DRM_MODE_CONNECTOR_SVIDEO);
 
 	drm_encoder_init(dev, &intel_encoder->base, &intel_tv_enc_funcs,
-			 DRM_MODE_ENCODER_TVDAC, NULL);
+			 DRM_MODE_ENCODER_TVDAC, "TV");
 
 	intel_encoder->compute_config = intel_tv_compute_config;
 	intel_encoder->get_config = intel_tv_get_config;