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authorSathyanarayana Nujella <sathyanarayana.nujella@intel.com>2016-12-06 07:08:36 -0800
committerMark Brown <broonie@kernel.org>2016-12-06 15:13:11 +0000
commitc1aee1d828caa86a663c57a56eead7fd5f22d80f (patch)
treee9273f4f59eac96d36369a8727b93902c73e4ba4 /sound/soc/intel/boards/bxt_da7219_max98357a.c
parentda91723ce0c5e0bbd5dc91d66447ba165241c257 (diff)
downloadlinux-c1aee1d828caa86a663c57a56eead7fd5f22d80f.tar.bz2
ASoC: Intel: update bxt_da7219_max98357a to support quad ch dmic capture
This patch updates FE channel constraints & BE fixup to support quad channel DMIC capture. DMIC pin's BE fixup is configured based on channel input, i.e. either stereo or quad. Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com> Signed-off-by: Harsha Priya <harshapriya.n@intel.com> Acked-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/boards/bxt_da7219_max98357a.c')
-rw-r--r--sound/soc/intel/boards/bxt_da7219_max98357a.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/sound/soc/intel/boards/bxt_da7219_max98357a.c b/sound/soc/intel/boards/bxt_da7219_max98357a.c
index bff80b467262..3a8c24a59020 100644
--- a/sound/soc/intel/boards/bxt_da7219_max98357a.c
+++ b/sound/soc/intel/boards/bxt_da7219_max98357a.c
@@ -30,6 +30,7 @@
#define BXT_DIALOG_CODEC_DAI "da7219-hifi"
#define BXT_MAXIM_CODEC_DAI "HiFi"
#define DUAL_CHANNEL 2
+#define QUAD_CHANNEL 4
static struct snd_soc_jack broxton_headset;
@@ -182,6 +183,16 @@ static struct snd_pcm_hw_constraint_list constraints_channels = {
.mask = 0,
};
+static unsigned int channels_quad[] = {
+ QUAD_CHANNEL,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels_quad = {
+ .count = ARRAY_SIZE(channels_quad),
+ .list = channels_quad,
+ .mask = 0,
+};
+
static int bxt_fe_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
@@ -258,7 +269,10 @@ static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
{
struct snd_interval *channels = hw_param_interval(params,
SNDRV_PCM_HW_PARAM_CHANNELS);
- channels->min = channels->max = DUAL_CHANNEL;
+ if (params_channels(params) == 2)
+ channels->min = channels->max = 2;
+ else
+ channels->min = channels->max = 4;
return 0;
}
@@ -267,9 +281,9 @@ static int broxton_dmic_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
- runtime->hw.channels_max = DUAL_CHANNEL;
+ runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
- &constraints_channels);
+ &constraints_channels_quad);
return snd_pcm_hw_constraint_list(substream->runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);