summaryrefslogtreecommitdiff
path: root/sound/soc/codecs/hdmi-codec.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/codecs/hdmi-codec.c')
-rw-r--r--sound/soc/codecs/hdmi-codec.c47
1 files changed, 24 insertions, 23 deletions
diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index 22ed0dc88f0a..3abf82563408 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -67,14 +67,14 @@ struct hdmi_codec_cea_spk_alloc {
};
/* Channel maps stereo HDMI */
-const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = {
+static const struct snd_pcm_chmap_elem hdmi_codec_stereo_chmaps[] = {
{ .channels = 2,
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
{ }
};
/* Channel maps for multi-channel playbacks, up to 8 n_ch */
-const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = {
+static const struct snd_pcm_chmap_elem hdmi_codec_8ch_chmaps[] = {
{ .channels = 2, /* CA_ID 0x00 */
.map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
{ .channels = 4, /* CA_ID 0x01 */
@@ -326,7 +326,7 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc)
{
int i;
- const unsigned long hdmi_codec_eld_spk_alloc_bits[] = {
+ static const unsigned long hdmi_codec_eld_spk_alloc_bits[] = {
[0] = FL | FR, [1] = LFE, [2] = FC, [3] = RL | RR,
[4] = RC, [5] = FLC | FRC, [6] = RLC | RRC,
};
@@ -340,7 +340,7 @@ static unsigned long hdmi_codec_spk_mask_from_alloc(int spk_alloc)
return spk_mask;
}
-void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp)
+static void hdmi_codec_eld_chmap(struct hdmi_codec_priv *hcp)
{
u8 spk_alloc;
unsigned long spk_mask;
@@ -399,18 +399,6 @@ static int hdmi_codec_chmap_ctl_get(struct snd_kcontrol *kcontrol,
return 0;
}
-
-static const struct snd_kcontrol_new hdmi_controls[] = {
- {
- .access = SNDRV_CTL_ELEM_ACCESS_READ |
- SNDRV_CTL_ELEM_ACCESS_VOLATILE,
- .iface = SNDRV_CTL_ELEM_IFACE_PCM,
- .name = "ELD",
- .info = hdmi_eld_ctl_info,
- .get = hdmi_eld_ctl_get,
- },
-};
-
static int hdmi_codec_new_stream(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
@@ -668,6 +656,16 @@ static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
{
struct snd_soc_dai_driver *drv = dai->driver;
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
+ struct snd_kcontrol *kctl;
+ struct snd_kcontrol_new hdmi_eld_ctl = {
+ .access = SNDRV_CTL_ELEM_ACCESS_READ |
+ SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+ .iface = SNDRV_CTL_ELEM_IFACE_PCM,
+ .name = "ELD",
+ .info = hdmi_eld_ctl_info,
+ .get = hdmi_eld_ctl_get,
+ .device = rtd->pcm->device,
+ };
int ret;
dev_dbg(dai->dev, "%s()\n", __func__);
@@ -686,14 +684,19 @@ static int hdmi_codec_pcm_new(struct snd_soc_pcm_runtime *rtd,
hcp->chmap_info->chmap = hdmi_codec_stereo_chmaps;
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
- return 0;
+ /* add ELD ctl with the device number corresponding to the PCM stream */
+ kctl = snd_ctl_new1(&hdmi_eld_ctl, dai->component);
+ if (!kctl)
+ return -ENOMEM;
+
+ return snd_ctl_add(rtd->card->snd_card, kctl);
}
-static struct snd_soc_dai_driver hdmi_i2s_dai = {
+static const struct snd_soc_dai_driver hdmi_i2s_dai = {
.name = "i2s-hifi",
.id = DAI_ID_I2S,
.playback = {
- .stream_name = "Playback",
+ .stream_name = "I2S Playback",
.channels_min = 2,
.channels_max = 8,
.rates = HDMI_RATES,
@@ -708,7 +711,7 @@ static const struct snd_soc_dai_driver hdmi_spdif_dai = {
.name = "spdif-hifi",
.id = DAI_ID_SPDIF,
.playback = {
- .stream_name = "Playback",
+ .stream_name = "SPDIF Playback",
.channels_min = 2,
.channels_max = 2,
.rates = HDMI_RATES,
@@ -730,10 +733,8 @@ static int hdmi_of_xlate_dai_id(struct snd_soc_component *component,
return ret;
}
-static struct snd_soc_codec_driver hdmi_codec = {
+static const struct snd_soc_codec_driver hdmi_codec = {
.component_driver = {
- .controls = hdmi_controls,
- .num_controls = ARRAY_SIZE(hdmi_controls),
.dapm_widgets = hdmi_widgets,
.num_dapm_widgets = ARRAY_SIZE(hdmi_widgets),
.dapm_routes = hdmi_routes,