drm/amd/display: skip audio config for virtual signal

[WHY & HOW]
IGT's kms_hdmi_inject (subtest inject_audio) triggers a warning message
from dce_aud_az_configure. This can be fixed by checking Virtual signal
that does not need to configure AZ audio since it does not have any.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
index c94a966c6612bd6e36dd2c88a012836b79b3676b..140598f18bbdd4cb4758ec7e9ec17c91286d0ecc 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_audio.c
@@ -407,6 +407,10 @@ void dce_aud_az_configure(
        bool is_ac3_supported = false;
        union audio_sample_rates sample_rate;
        uint32_t strlen = 0;
+
+       if (signal == SIGNAL_TYPE_VIRTUAL)
+               return;
+
        value = AZ_REG_READ(AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL);
        set_reg_field_value(value, 1,
                        AZALIA_F0_CODEC_PIN_CONTROL_HOT_PLUG_CONTROL,