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drm/i915: Disable DP audio for g4x 

Apparently g4x doesn't support audio over DP. Bspec lists the
bit as "Reserved for Audio Output Enable", and empirical evidence
tells us that the bit won't stick. So stop trying to enable DP
audio on g4x.

Link: https://patchwork.freedesktop.org/patch/msgid/20171129164303.18793-1-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=103989
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
This commit is contained in:
Ville Syrjälä 2017-11-29 18:43:01 +02:00
parent b37aef5f1b
commit 20ff39fa43
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_dp.c
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@ -1643,7 +1643,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
pipe_config->has_pch_encoder = true;
pipe_config->has_drrs = false;
if (port == PORT_A)
if (IS_G4X(dev_priv) || port == PORT_A)
pipe_config->has_audio = false;
else if (intel_conn_state->force_audio == HDMI_AUDIO_AUTO)
pipe_config->has_audio = intel_dp->has_audio;