WebSVN – Kolibri OS – Diff – /drivers/video/drm/i915/intel_crt.c

 	struct intel_encoder base;
 	/* DPMS state is stored in the connector, which we need in the
 	 * encoder's enable/disable callbacks */
 	struct intel_connector *connector;
 	bool force_hotplug_required;
-	u32 adpa_reg;
+	i915_reg_t adpa_reg;
 };
 static struct intel_crt *intel_encoder_to_crt(struct intel_encoder *encoder)
+{
 	struct drm_device *dev = encoder->base.dev;
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_crt *crt = intel_encoder_to_crt(encoder);
 	enum intel_display_power_domain power_domain;
 	u32 tmp;
+	bool ret;
 	power_domain = intel_display_port_power_domain(encoder);
-	if (!intel_display_power_is_enabled(dev_priv, power_domain))
+	if (!intel_display_power_get_if_enabled(dev_priv, power_domain))
+		return false;
-		return false;
+	ret = false;
 	tmp = I915_READ(crt->adpa_reg);
 	if (!(tmp & ADPA_DAC_ENABLE))
-		return false;
+		goto out;
 	if (HAS_PCH_CPT(dev))
+		*pipe = PORT_TO_PIPE_CPT(tmp);
+	else
+		*pipe = PORT_TO_PIPE(tmp);
-		*pipe = PORT_TO_PIPE_CPT(tmp);
+	ret = true;
-	else
+out:
-		*pipe = PORT_TO_PIPE(tmp);
+	intel_display_power_put(dev_priv, power_domain);
+{
 	struct intel_crt *crt = intel_attached_crt(connector);
 	struct drm_i915_private *dev_priv = crt->base.base.dev->dev_private;
 	struct edid *edid;
 	struct i2c_adapter *i2c;
-	bool ret = false;
 	BUG_ON(crt->base.type != INTEL_OUTPUT_ANALOG);
 		 * link between analog and digital outputs, so we
 		 * have to check the EDID input spec of the attached device.
 		 */
 		if (!is_digital) {
 			DRM_DEBUG_KMS("CRT detected via DDC:0x50 [EDID]\n");
-			ret = true;
+			return true;
-		} else {
-			DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
+		}
+			DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [EDID reports a digital panel]\n");
 	} else {
 		DRM_DEBUG_KMS("CRT not detected via DDC:0x50 [no valid EDID found]\n");
+	}
 	kfree(edid);
-	return ret;
+	return false;
+}
 	uint32_t save_vtotal;
 	uint32_t vtotal, vactive;
 	uint32_t vsample;
 	uint32_t vblank, vblank_start, vblank_end;
 	uint32_t dsl;
-	uint32_t bclrpat_reg;
+	i915_reg_t bclrpat_reg, vtotal_reg,
-	uint32_t vtotal_reg;
-	uint32_t vblank_reg;
-	uint32_t vsync_reg;
-	uint32_t pipeconf_reg;
-	uint32_t pipe_dsl_reg;
+		vblank_reg, vsync_reg, pipeconf_reg, pipe_dsl_reg;
 	uint8_t	st00;
 	enum drm_connector_status status;
 		I915_WRITE(pipeconf_reg, pipeconf | PIPECONF_FORCE_BORDER);
 		POSTING_READ(pipeconf_reg);
 		/* Wait for next Vblank to substitue
 		 * border color for Color info */
 		intel_wait_for_vblank(dev, pipe);
-		st00 = I915_READ8(VGA_MSR_WRITE);
+		st00 = I915_READ8(_VGA_MSR_WRITE);
 		status = ((st00 & (1 << 4)) != 0) ?
 			connector_status_connected :
 			connector_status_disconnected;
 		detect = 0;
 		count = 0;
 		do {
 			count++;
 			/* Read the ST00 VGA status register */
-			st00 = I915_READ8(VGA_MSR_WRITE);
+			st00 = I915_READ8(_VGA_MSR_WRITE);
 			if (st00 & (1 << 4))
 				detect++;
 		} while ((I915_READ(pipe_dsl_reg) == dsl));
+{
 	struct drm_connector *connector;
 	struct intel_crt *crt;
 	struct intel_connector *intel_connector;
 	struct drm_i915_private *dev_priv = dev->dev_private;
+	i915_reg_t adpa_reg;
+	u32 adpa;
 	/* Skip machines without VGA that falsely report hotplug events */
 	if (dmi_check_system(intel_no_crt))
+		return;
+	if (HAS_PCH_SPLIT(dev))
+		adpa_reg = PCH_ADPA;
+	else if (IS_VALLEYVIEW(dev))
+		adpa_reg = VLV_ADPA;
+	else
+		adpa_reg = ADPA;
+	adpa = I915_READ(adpa_reg);
+	if ((adpa & ADPA_DAC_ENABLE) == 0) {
+		/*
+		 * On some machines (some IVB at least) CRT can be
+		 * fused off, but there's no known fuse bit to
+		 * indicate that. On these machine the ADPA register
+		 * works normally, except the DAC enable bit won't
+		 * take. So the only way to tell is attempt to enable
+		 * it and see what happens.
+		 */
+		I915_WRITE(adpa_reg, adpa | ADPA_DAC_ENABLE |
+			   ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
+		if ((I915_READ(adpa_reg) & ADPA_DAC_ENABLE) == 0)
+			return;
+		I915_WRITE(adpa_reg, adpa);
 		return;
 	crt = kzalloc(sizeof(struct intel_crt), GFP_KERNEL);
 	if (!crt)
 	crt->connector = intel_connector;
 	drm_connector_init(dev, &intel_connector->base,
 			   &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
 	drm_encoder_init(dev, &crt->base.base, &intel_crt_enc_funcs,
-			 DRM_MODE_ENCODER_DAC);
+			 DRM_MODE_ENCODER_DAC, NULL);
 	intel_connector_attach_encoder(intel_connector, &crt->base);
 		connector->interlace_allowed = 0;
 	else
 		connector->interlace_allowed = 1;
 	connector->doublescan_allowed = 0;
-	if (HAS_PCH_SPLIT(dev))
-		crt->adpa_reg = PCH_ADPA;
-	else if (IS_VALLEYVIEW(dev))
-		crt->adpa_reg = VLV_ADPA;
-	else
-		crt->adpa_reg = ADPA;
+	crt->adpa_reg = adpa_reg;
 	crt->base.compute_config = intel_crt_compute_config;
-	if (HAS_PCH_SPLIT(dev) && !HAS_DDI(dev)) {
+	if (HAS_PCH_SPLIT(dev)) {
 		crt->base.disable = pch_disable_crt;
 		crt->base.post_disable = pch_post_disable_crt;
 	} else {

Subversion Repositories Kolibri OS

(root)/drivers/video/drm/i915/intel_crt.c – Rev 6935 → 6937