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drm/i915: hdmi: add CEC notifier to intel_hdmi

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This patchs adds the cec_notifier feature to the intel_hdmi part
of the i915 DRM driver. It uses the HDMI DRM connector name to differentiate
between each HDMI ports.
The changes will allow the i915 HDMI code to notify EDID and HPD changes
to an eventual CEC adapter.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Neil Armstrong
2018-07-04 17:08:17 +02:00
committed by Lee Jones
parent 7a78c1e116
commit 9c229127ae
4 changed files with 40 additions and 0 deletions
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13
drivers/gpu/drm/i915/intel_hdmi.c
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@@ -1868,6 +1868,8 @@ intel_hdmi_set_edid(struct drm_connector *connector)
connected = true;
}
cec_notifier_set_phys_addr_from_edid(intel_hdmi->cec_notifier, edid);
return connected;
}
@@ -1876,6 +1878,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
{
enum drm_connector_status status;
struct drm_i915_private *dev_priv = to_i915(connector->dev);
struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n",
connector->base.id, connector->name);
@@ -1891,6 +1894,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
intel_display_power_put(dev_priv, POWER_DOMAIN_GMBUS);
if (status != connector_status_connected)
cec_notifier_phys_addr_invalidate(intel_hdmi->cec_notifier);
return status;
}
@@ -2031,6 +2037,8 @@ static void chv_hdmi_pre_enable(struct intel_encoder *encoder,
static void intel_hdmi_destroy(struct drm_connector *connector)
{
if (intel_attached_hdmi(connector)->cec_notifier)
cec_notifier_put(intel_attached_hdmi(connector)->cec_notifier);
kfree(to_intel_connector(connector)->detect_edid);
drm_connector_cleanup(connector);
kfree(connector);
@@ -2350,6 +2358,11 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port,
u32 temp = I915_READ(PEG_BAND_GAP_DATA);
I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
}
intel_hdmi->cec_notifier = cec_notifier_get_conn(dev->dev,
port_identifier(port));
if (!intel_hdmi->cec_notifier)
DRM_DEBUG_KMS("CEC notifier get failed\n");
}
void intel_hdmi_init(struct drm_i915_private *dev_priv,