[Intel-gfx] [PATCH 1/3] drm/i915: Disable DP audio for g4x

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

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.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 957735c0b4c6..0e1a20e625e4 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -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;
-- 
2.13.6