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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: d2182a6608 (drm/i915: Don't register HDMI connectors for eDP ports on VLV/CHV)
References: https://bugs.freedesktop.org/show_bug.cgi?id=96288
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Phidias 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: Ville 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 457c52d87e)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Chris Wilson 2016-06-01 08:27:50 +01:00 committed by Jani Nikula
parent 36a5fc5c43
commit fff7660d1e
3 changed files with 17 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/gpu/drm/i915/intel_display.c
View File

@ -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 */

13
drivers/gpu/drm/i915/intel_dp.c
View File

@ -5923,9 +5923,9 @@ fail:
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 @@ err_encoder_init:
kfree(intel_connector);
err_connector_alloc:
kfree(intel_dig_port);
return;
return false;
}
void intel_dp_mst_suspend(struct drm_device *dev)

2
drivers/gpu/drm/i915/intel_drv.h
View File

@ -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,