From b1d7e4b41fd0f72ea8149056778db5d737739305 Mon Sep 17 00:00:00 2001 From: Wu Fengguang Date: Tue, 14 Feb 2012 11:45:36 +0800 Subject: drm/i915: add a "force-dvi" HDMI audio mode When HDMI-DVI converter is used, it's not only necessary to turn off audio, but also to disable HDMI_MODE_SELECT and video infoframe. Since the DVI mode is mainly tied to audio functionality from end user POV, add a new "force-dvi" audio mode: xrandr --output HDMI1 --set audio force-dvi Note that most users won't need to set this and happily rely on the EDID based DVI auto detection. Reported-by: Andrea Arcangeli Signed-off-by: Wu Fengguang Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdmi.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) (limited to 'drivers/gpu/drm/i915/intel_hdmi.c') diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 086288e85fad..cae3e5f17a49 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -44,7 +44,7 @@ struct intel_hdmi { uint32_t color_range; bool has_hdmi_sink; bool has_audio; - int force_audio; + enum hdmi_force_audio force_audio; void (*write_infoframe)(struct drm_encoder *encoder, struct dip_infoframe *frame); }; @@ -339,7 +339,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) if (edid) { if (edid->input & DRM_EDID_INPUT_DIGITAL) { status = connector_status_connected; - intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid); + if (intel_hdmi->force_audio != HDMI_AUDIO_OFF_DVI) + 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; @@ -347,8 +349,9 @@ intel_hdmi_detect(struct drm_connector *connector, bool force) } if (status == connector_status_connected) { - if (intel_hdmi->force_audio) - intel_hdmi->has_audio = intel_hdmi->force_audio > 0; + if (intel_hdmi->force_audio != HDMI_AUDIO_AUTO) + intel_hdmi->has_audio = + (intel_hdmi->force_audio == HDMI_AUDIO_ON); } return status; @@ -402,7 +405,7 @@ intel_hdmi_set_property(struct drm_connector *connector, return ret; if (property == dev_priv->force_audio_property) { - int i = val; + enum hdmi_force_audio i = val; bool has_audio; if (i == intel_hdmi->force_audio) @@ -410,13 +413,13 @@ intel_hdmi_set_property(struct drm_connector *connector, intel_hdmi->force_audio = i; - if (i == 0) + if (i == HDMI_AUDIO_AUTO) has_audio = intel_hdmi_detect_audio(connector); else - has_audio = i > 0; + has_audio = (i == HDMI_AUDIO_ON); - if (has_audio == intel_hdmi->has_audio) - return 0; + if (i == HDMI_AUDIO_OFF_DVI) + intel_hdmi->has_hdmi_sink = 0; intel_hdmi->has_audio = has_audio; goto done; -- cgit v1.2.2