As we may query the edid multiple times following a detect, record the
EDID found during output discovery and reuse it. This is a separate
issue from caching the output EDID across detection cycles.
v2: Implement connector->force() callback so that edid is associated
with the connector for user overrides as well (Ville)
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 156 ++++++++++++++++++++++-----------------
drivers/gpu/drm/i915/intel_drv.h | 1 +
2 files changed, 90 insertions(+), 67 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 42de5cc86b0d..69ff82a7ec4c 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3808,9 +3808,9 @@ g4x_dp_detect(struct intel_dp *intel_dp)
}
static struct edid *
-intel_dp_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter)
+intel_dp_get_edid(struct intel_dp *intel_dp)
{
- struct intel_connector *intel_connector = to_intel_connector(connector);
+ struct intel_connector *intel_connector = intel_dp->attached_connector;
/* use cached edid if we have one */
if (intel_connector->edid) {
@@ -3819,27 +3819,55 @@ intel_dp_get_edid(struct drm_connector *connector,
struct i2c_adapter *adapter)
return NULL;
return drm_edid_duplicate(intel_connector->edid);
- }
+ } else
+ return drm_get_edid(&intel_connector->base,
+ &intel_dp->aux.ddc);
+}
- return drm_get_edid(connector, adapter);
+static void
+intel_dp_set_edid(struct intel_dp *intel_dp)
+{
+ struct intel_connector *intel_connector = intel_dp->attached_connector;
+ struct edid *edid;
+
+ edid = intel_dp_get_edid(intel_dp);
+ intel_connector->detect_edid = edid;
+
+ if (intel_dp->force_audio != HDMI_AUDIO_AUTO)
+ intel_dp->has_audio = intel_dp->force_audio == HDMI_AUDIO_ON;
+ else
+ intel_dp->has_audio = drm_detect_monitor_audio(edid);
}
-static int
-intel_dp_get_edid_modes(struct drm_connector *connector, struct i2c_adapter
*adapter)
+static void
+intel_dp_unset_edid(struct intel_dp *intel_dp)
{
- struct intel_connector *intel_connector = to_intel_connector(connector);
+ struct intel_connector *intel_connector = intel_dp->attached_connector;
- /* use cached edid if we have one */
- if (intel_connector->edid) {
- /* invalid edid */
- if (IS_ERR(intel_connector->edid))
- return 0;
+ kfree(intel_connector->detect_edid);
+ intel_connector->detect_edid = NULL;
- return intel_connector_update_modes(connector,
- intel_connector->edid);
- }
+ intel_dp->has_audio = false;
+}
- return intel_ddc_get_modes(connector, adapter);
+static enum intel_display_power_domain
+intel_dp_power_get(struct intel_dp *dp)
+{
+ struct intel_encoder *encoder = &dp_to_dig_port(dp)->base;
+ enum intel_display_power_domain power_domain;
+
+ power_domain = intel_display_port_power_domain(encoder);
+ intel_display_power_get(to_i915(encoder->base.dev), power_domain);
+
+ return power_domain;
+}
+
+static void
+intel_dp_power_put(struct intel_dp *dp,
+ enum intel_display_power_domain power_domain)
+{
+ struct intel_encoder *encoder = &dp_to_dig_port(dp)->base;
+ intel_display_power_put(to_i915(encoder->base.dev), power_domain);
}
static enum drm_connector_status
@@ -3849,27 +3877,22 @@ intel_dp_detect(struct drm_connector *connector, bool
force)
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
struct intel_encoder *intel_encoder = &intel_dig_port->base;
struct drm_device *dev = connector->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
enum drm_connector_status status;
enum intel_display_power_domain power_domain;
- struct edid *edid = NULL;
bool ret;
- power_domain = intel_display_port_power_domain(intel_encoder);
- intel_display_power_get(dev_priv, power_domain);
-
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
+ intel_dp_unset_edid(intel_dp);
if (intel_dp->is_mst) {
/* MST devices are disconnected from a monitor POV */
if (intel_encoder->type != INTEL_OUTPUT_EDP)
intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT;
- status = connector_status_disconnected;
- goto out;
+ return connector_status_disconnected;
}
- intel_dp->has_audio = false;
+ power_domain = intel_dp_power_get(intel_dp);
/* Can't disconnect eDP, but you can close the lid... */
if (is_edp(intel_dp))
@@ -3893,82 +3916,78 @@ intel_dp_detect(struct drm_connector *connector, bool
force)
goto out;
}
- if (intel_dp->force_audio != HDMI_AUDIO_AUTO) {
- intel_dp->has_audio = (intel_dp->force_audio == HDMI_AUDIO_ON);
- } else {
- edid = intel_dp_get_edid(connector, &intel_dp->aux.ddc);
- if (edid) {
- intel_dp->has_audio = drm_detect_monitor_audio(edid);
- kfree(edid);
- }
- }
+ intel_dp_set_edid(intel_dp);
if (intel_encoder->type != INTEL_OUTPUT_EDP)
intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT;
status = connector_status_connected;
out:
- intel_display_power_put(dev_priv, power_domain);
+ intel_dp_power_put(intel_dp, power_domain);
return status;
}
-static int intel_dp_get_modes(struct drm_connector *connector)
+static void
+intel_dp_force(struct drm_connector *connector)
{
struct intel_dp *intel_dp = intel_attached_dp(connector);
- struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
- struct intel_encoder *intel_encoder = &intel_dig_port->base;
- struct intel_connector *intel_connector = to_intel_connector(connector);
- struct drm_device *dev = connector->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
+ struct intel_encoder *intel_encoder = &dp_to_dig_port(intel_dp)->base;
enum intel_display_power_domain power_domain;
- int ret;
- /* We should parse the EDID data and find out if it has an audio sink
- */
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
+ connector->base.id, connector->name);
+ intel_dp_unset_edid(intel_dp);
- power_domain = intel_display_port_power_domain(intel_encoder);
- intel_display_power_get(dev_priv, power_domain);
+ if (connector->status != connector_status_connected)
+ return;
- ret = intel_dp_get_edid_modes(connector, &intel_dp->aux.ddc);
- intel_display_power_put(dev_priv, power_domain);
- if (ret)
- return ret;
+ power_domain = intel_dp_power_get(intel_dp);
+
+ intel_dp_set_edid(intel_dp);
+
+ intel_dp_power_put(intel_dp, power_domain);
+
+ if (intel_encoder->type != INTEL_OUTPUT_EDP)
+ intel_encoder->type = INTEL_OUTPUT_DISPLAYPORT;
+}
+
+static int intel_dp_get_modes(struct drm_connector *connector)
+{
+ struct intel_connector *intel_connector = to_intel_connector(connector);
+ struct edid *edid;
+
+ edid = intel_connector->detect_edid;
+ if (edid) {
+ int ret = intel_connector_update_modes(connector, edid);
+ if (ret)
+ return ret;
+ }
/* if eDP has no EDID, fall back to fixed mode */
- if (is_edp(intel_dp) && intel_connector->panel.fixed_mode) {
+ if (is_edp(intel_attached_dp(connector)) &&
+ intel_connector->panel.fixed_mode) {
struct drm_display_mode *mode;
- mode = drm_mode_duplicate(dev,
+
+ mode = drm_mode_duplicate(connector->dev,
intel_connector->panel.fixed_mode);
if (mode) {
drm_mode_probed_add(connector, mode);
return 1;
}
}
+
return 0;
}
static bool
intel_dp_detect_audio(struct drm_connector *connector)
{
- struct intel_dp *intel_dp = intel_attached_dp(connector);
- struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
- struct intel_encoder *intel_encoder = &intel_dig_port->base;
- struct drm_device *dev = connector->dev;
- struct drm_i915_private *dev_priv = dev->dev_private;
- enum intel_display_power_domain power_domain;
- struct edid *edid;
bool has_audio = false;
+ struct edid *edid;
- power_domain = intel_display_port_power_domain(intel_encoder);
- intel_display_power_get(dev_priv, power_domain);
-
- edid = intel_dp_get_edid(connector, &intel_dp->aux.ddc);
- if (edid) {
+ edid = to_intel_connector(connector)->detect_edid;
+ if (edid)
has_audio = drm_detect_monitor_audio(edid);
- kfree(edid);
- }
-
- intel_display_power_put(dev_priv, power_domain);
return has_audio;
}
@@ -4066,6 +4085,8 @@ intel_dp_connector_destroy(struct drm_connector
*connector)
{
struct intel_connector *intel_connector = to_intel_connector(connector);
+ intel_dp_unset_edid(intel_attached_dp(connector));
+
if (!IS_ERR_OR_NULL(intel_connector->edid))
kfree(intel_connector->edid);
@@ -4118,6 +4139,7 @@ static void intel_dp_encoder_reset(struct drm_encoder
*encoder)
static const struct drm_connector_funcs intel_dp_connector_funcs = {
.dpms = intel_connector_dpms,
.detect = intel_dp_detect,
+ .force = intel_dp_force,
.fill_modes = drm_helper_probe_single_connector_modes,
.set_property = intel_dp_set_property,
.destroy = intel_dp_connector_destroy,
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 07217f39e925..f6a2b094384f 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -214,6 +214,7 @@ struct intel_connector {
/* Cached EDID for eDP and LVDS. May hold ERR_PTR for invalid EDID. */
struct edid *edid;
+ struct edid *detect_edid;
/* since POLL and HPD connectors may use the same HPD line keep the
native
state of connector->polled in case hotplug storm detection changes
it */
--
2.1.0
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