diff options
Diffstat (limited to 'sound/soc/codecs/hdac_hdmi.c')
| -rw-r--r-- | sound/soc/codecs/hdac_hdmi.c | 24 |
1 files changed, 11 insertions, 13 deletions
diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c index 5eeb0fe836a9..660e0587f399 100644 --- a/sound/soc/codecs/hdac_hdmi.c +++ b/sound/soc/codecs/hdac_hdmi.c @@ -455,24 +455,11 @@ static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai) { struct hdac_hdmi_priv *hdmi = snd_soc_dai_get_drvdata(dai); - struct hdac_device *hdev = hdmi->hdev; struct hdac_hdmi_dai_port_map *dai_map; - struct hdac_hdmi_port *port; struct hdac_hdmi_pcm *pcm; int format; dai_map = &hdmi->dai_map[dai->id]; - port = dai_map->port; - - if (!port) - return -ENODEV; - - if ((!port->eld.monitor_present) || (!port->eld.eld_valid)) { - dev_err(&hdev->dev, - "device is not configured for this pin:port%d:%d\n", - port->pin->nid, port->id); - return -ENODEV; - } format = snd_hdac_calc_stream_format(params_rate(hparams), params_channels(hparams), params_format(hparams), @@ -1855,6 +1842,17 @@ static int hdmi_codec_probe(struct snd_soc_component *component) hdmi->card = dapm->card->snd_card; /* + * Setup a device_link between card device and HDMI codec device. + * The card device is the consumer and the HDMI codec device is + * the supplier. With this setting, we can make sure that the audio + * domain in display power will be always turned on before operating + * on the HDMI audio codec registers. + * Let's use the flag DL_FLAG_AUTOREMOVE_CONSUMER. This can make + * sure the device link is freed when the machine driver is removed. + */ + device_link_add(component->card->dev, &hdev->dev, DL_FLAG_RPM_ACTIVE | + DL_FLAG_AUTOREMOVE_CONSUMER); + /* * hdac_device core already sets the state to active and calls * get_noresume. So enable runtime and set the device to suspend. */ |