Similar to g4x_dp_detect() we should probe the PORT_HOTPLUG_STATUS as to whether the connector is active prior to attempting to retrieve the EDID.
Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/intel_hdmi.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 03b3524..a4b7ad3 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -427,6 +427,30 @@ static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder, return true; } +static bool g4x_hdmi_connected(struct intel_hdmi *intel_hdmi) +{ + struct drm_device *dev = intel_hdmi->base.base.dev; + struct drm_i915_private *dev_priv = dev->dev_private; + uint32_t bit; + + switch (intel_hdmi->sdvox_reg) { + case HDMIB: + bit = HDMIB_HOTPLUG_LIVE_STATUS; + break; + case HDMIC: + bit = HDMIC_HOTPLUG_LIVE_STATUS; + break; + case HDMID: + bit = HDMID_HOTPLUG_LIVE_STATUS; + break; + default: + bit = 0; + break; + } + + return I915_READ(PORT_HOTPLUG_STAT) & bit; +} + static enum drm_connector_status intel_hdmi_detect(struct drm_connector *connector, bool force) { @@ -435,6 +459,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) struct edid *edid; enum drm_connector_status status = connector_status_disconnected; + if (IS_G4X(connector->dev) && !g4x_hdmi_connected(intel_hdmi)) + return status; + intel_hdmi->has_hdmi_sink = false; intel_hdmi->has_audio = false; edid = drm_get_edid(connector, -- 1.7.10 _______________________________________________ Intel-gfx mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/intel-gfx
