[alsa-devel] [PATCH] ASoC: codec: hdac_hdmi: no checking monitor in hw_params

[libin.yang at intel.com]

From: Libin Yang <libin.yang at intel.com>

Some userspace apps, like pulseaudio, may call open, hw_params,
prepare to judge whether the pcm is ready or not. Current hdac_hdmi
will return -ENODEV if monitor is not connected, which will cause
the apps believe the pcm is not ready. Actually PCM for hdmi is ready,
even the monitor is not connected.

This patch removes the check of monitor presence in hw_params, just like
what the legacy HD-Audio driver does.

Signed-off-by: Libin Yang <libin.yang at intel.com>
---
 sound/soc/codecs/hdac_hdmi.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/sound/soc/codecs/hdac_hdmi.c b/sound/soc/codecs/hdac_hdmi.c
index 4de1fbf..660e058 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),
-- 
2.7.4