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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-05-11 18:01:34 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2012-05-21 20:15:48 +0200 |
| commit | 8ec22b214d76773c9d89f4040505ce10f677ed9a (patch) | |
| tree | 7489b793162b248040eb4efb51d5b5933cb1cd6f /drivers/gpu/drm/i915/intel_hdmi.c | |
| parent | 084b612ecf8e59973576b2f644e6949609c79375 (diff) | |
| download | linux-8ec22b214d76773c9d89f4040505ce10f677ed9a.tar.gz linux-8ec22b214d76773c9d89f4040505ce10f677ed9a.tar.bz2 linux-8ec22b214d76773c9d89f4040505ce10f677ed9a.zip | |
drm/i915/hdmi: Query the live connector status bit for G4x
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 <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_hdmi.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 2ead3bf7c21d..77f0f8fb9e35 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -452,6 +452,30 @@ 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) { @@ -460,6 +484,9 @@ 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, |