redonkable/alistair23-linux
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drm/i915: Enable HDMI audio for monitor with audio support

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Rely on monitor's audio capability to turn on audio output for HDMI.

Tested-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Zhenyu Wang 2010-09-10 10:39:40 +08:00 committed by Chris Wilson
parent a9756bb5b2
commit 2e3d6006ac
1 changed files with 8 additions and 4 deletions
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12
drivers/gpu/drm/i915/intel_hdmi.c
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@ -42,6 +42,7 @@ struct intel_hdmi {
u32 sdvox_reg;
int ddc_bus;
bool has_hdmi_sink;
bool has_audio;
};
static struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder)
@ -72,11 +73,12 @@ static void intel_hdmi_mode_set(struct drm_encoder *encoder,
if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
sdvox |= SDVO_HSYNC_ACTIVE_HIGH;
if (intel_hdmi->has_hdmi_sink) {
/* Required on CPT */
if (intel_hdmi->has_hdmi_sink && HAS_PCH_CPT(dev))
sdvox |= HDMI_MODE_SELECT;
if (intel_hdmi->has_audio)
sdvox |= SDVO_AUDIO_ENABLE;
if (HAS_PCH_CPT(dev))
sdvox |= HDMI_MODE_SELECT;
}
if (intel_crtc->pipe == 1) {
if (HAS_PCH_CPT(dev))
@ -154,6 +156,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
enum drm_connector_status status = connector_status_disconnected;
intel_hdmi->has_hdmi_sink = false;
intel_hdmi->has_audio = false;
edid = drm_get_edid(connector,
&dev_priv->gmbus[intel_hdmi->ddc_bus].adapter);
@ -161,6 +164,7 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
if (edid->input & DRM_EDID_INPUT_DIGITAL) {
status = connector_status_connected;
intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
intel_hdmi->has_audio = drm_detect_monitor_audio(edid);
}
connector->display_info.raw_edid = NULL;
kfree(edid);