Commit fff7660d authored by Chris Wilson's avatar Chris Wilson Committed by Jani Nikula

drm/i915: Only ignore eDP ports that are connected

If the VBT says that a certain port should be eDP (and hence fused off
from HDMI), but in reality it isn't, we need to try and acquire the HDMI
connection instead. So only trust the VBT edp setting if we can connect
to an eDP device on that port.

Fixes: d2182a66 (drm/i915: Don't register HDMI connectors for eDP ports on VLV/CHV)
References: https://bugs.freedesktop.org/show_bug.cgi?id=96288Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Tested-by: default avatarPhidias Chiang <phidias.chiang@canonical.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464766070-31623-1-git-send-email-chris@chris-wilson.co.uk
(cherry picked from commit 457c52d8)
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 36a5fc5c
......@@ -14554,6 +14554,8 @@ static void intel_setup_outputs(struct drm_device *dev)
if (I915_READ(PCH_DP_D) & DP_DETECTED)
intel_dp_init(dev, PCH_DP_D, PORT_D);
} else if (IS_VALLEYVIEW(dev) || IS_CHERRYVIEW(dev)) {
bool has_edp;
/*
* The DP_DETECTED bit is the latched state of the DDC
* SDA pin at boot. However since eDP doesn't require DDC
......@@ -14563,19 +14565,17 @@ static void intel_setup_outputs(struct drm_device *dev)
* eDP ports. Consult the VBT as well as DP_DETECTED to
* detect eDP ports.
*/
if (I915_READ(VLV_HDMIB) & SDVO_DETECTED &&
!intel_dp_is_edp(dev, PORT_B))
has_edp = intel_dp_is_edp(dev, PORT_B);
if (I915_READ(VLV_DP_B) & DP_DETECTED || has_edp)
has_edp &= intel_dp_init(dev, VLV_DP_B, PORT_B);
if (I915_READ(VLV_HDMIB) & SDVO_DETECTED && !has_edp)
intel_hdmi_init(dev, VLV_HDMIB, PORT_B);
if (I915_READ(VLV_DP_B) & DP_DETECTED ||
intel_dp_is_edp(dev, PORT_B))
intel_dp_init(dev, VLV_DP_B, PORT_B);
if (I915_READ(VLV_HDMIC) & SDVO_DETECTED &&
!intel_dp_is_edp(dev, PORT_C))
has_edp = intel_dp_is_edp(dev, PORT_C);
if (I915_READ(VLV_DP_C) & DP_DETECTED || has_edp)
has_edp &= intel_dp_init(dev, VLV_DP_C, PORT_C);
if (I915_READ(VLV_HDMIC) & SDVO_DETECTED && !has_edp)
intel_hdmi_init(dev, VLV_HDMIC, PORT_C);
if (I915_READ(VLV_DP_C) & DP_DETECTED ||
intel_dp_is_edp(dev, PORT_C))
intel_dp_init(dev, VLV_DP_C, PORT_C);
if (IS_CHERRYVIEW(dev)) {
/* eDP not supported on port D, so don't check VBT */
......
......@@ -5923,9 +5923,9 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
return false;
}
void
intel_dp_init(struct drm_device *dev,
i915_reg_t output_reg, enum port port)
bool intel_dp_init(struct drm_device *dev,
i915_reg_t output_reg,
enum port port)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_digital_port *intel_dig_port;
......@@ -5935,7 +5935,7 @@ intel_dp_init(struct drm_device *dev,
intel_dig_port = kzalloc(sizeof(*intel_dig_port), GFP_KERNEL);
if (!intel_dig_port)
return;
return false;
intel_connector = intel_connector_alloc();
if (!intel_connector)
......@@ -5992,7 +5992,7 @@ intel_dp_init(struct drm_device *dev,
if (!intel_dp_init_connector(intel_dig_port, intel_connector))
goto err_init_connector;
return;
return true;
err_init_connector:
drm_encoder_cleanup(encoder);
......@@ -6000,8 +6000,7 @@ intel_dp_init(struct drm_device *dev,
kfree(intel_connector);
err_connector_alloc:
kfree(intel_dig_port);
return;
return false;
}
void intel_dp_mst_suspend(struct drm_device *dev)
......
......@@ -1284,7 +1284,7 @@ void intel_csr_ucode_suspend(struct drm_i915_private *);
void intel_csr_ucode_resume(struct drm_i915_private *);
/* intel_dp.c */
void intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
bool intel_dp_init(struct drm_device *dev, i915_reg_t output_reg, enum port port);
bool intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
struct intel_connector *intel_connector);
void intel_dp_set_link_params(struct intel_dp *intel_dp,
......
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