After reusing drm_hdmi_audio_* helpers and drm_bridge_connector
integration in drm/msm/dp, we have dropped msm_dp_audio_hw_params and
use msm_dp_audio_prepare instead. While userspace is still calling
hw_params to do audio initialization, and we get the following errors:
[ 784.904566] qcom-apm gprsvc:service:2:1: Error (1) Processing 0x01001002 cmd
[ 784.912185] qcom-apm gprsvc:service:2:1: DSP returned error[1001002] 1
[ 784.918927] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: Failed to start APM port 104
[ 784.929947] q6apm-lpass-dais 3700000.remoteproc:glink-edge:gpr:service@1:bedais: ASoC error (-22): at snd_soc_dai_prepare() on DISPLAY_PORT_RX_0
msm_dp_audio_prepare is not called because hdmi-codec driver only checks
and runs hw_params. This commit will add hw_params callback function
same as drm_connector_hdmi_audio_prepare, so that hdmi-codec driver can
work with userspace alsa.
Tested with Radxa Dragon Q6A.
Fixes: 98a8920e7b07 ("drm/msm/dp: reuse generic HDMI codec implementation")
Signed-off-by: Jianfeng Liu <liujianfeng1994@gmail.com>
---
drivers/gpu/drm/display/drm_hdmi_audio_helper.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/display/drm_hdmi_audio_helper.c b/drivers/gpu/drm/display/drm_hdmi_audio_helper.c
index 7d78b02c1446..6ca1c7ad0632 100644
--- a/drivers/gpu/drm/display/drm_hdmi_audio_helper.c
+++ b/drivers/gpu/drm/display/drm_hdmi_audio_helper.c
@@ -130,6 +130,7 @@ EXPORT_SYMBOL(drm_connector_hdmi_audio_plugged_notify);
static const struct hdmi_codec_ops drm_connector_hdmi_audio_ops = {
.audio_startup = drm_connector_hdmi_audio_startup,
+ .hw_params = drm_connector_hdmi_audio_prepare,
.prepare = drm_connector_hdmi_audio_prepare,
.audio_shutdown = drm_connector_hdmi_audio_shutdown,
.mute_stream = drm_connector_hdmi_audio_mute_stream,
--
2.43.0