1 files changed, 8 insertions, 11 deletions

diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c
index 1a68d043c803..0c3a3cbcb884 100644
--- a/sound/soc/intel/boards/bxt_rt298.c
+++ b/sound/soc/intel/boards/bxt_rt298.c
@@ -207,11 +207,11 @@ static const struct snd_soc_ops broxton_rt298_ops = {
         .hw_params = broxton_rt298_hw_params,
 };
 
-static unsigned int rates[] = {
+static const unsigned int rates[] = {
         48000,
 };
 
-static struct snd_pcm_hw_constraint_list constraints_rates = {
+static const struct snd_pcm_hw_constraint_list constraints_rates = {
         .count = ARRAY_SIZE(rates),
         .list  = rates,
         .mask = 0,
@@ -222,19 +222,16 @@ static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 {
         struct snd_interval *channels = hw_param_interval(params,
                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
-        if (params_channels(params) == 2)
-                channels->min = channels->max = 2;
-        else
-                channels->min = channels->max = 4;
+        channels->min = channels->max = 4;
 
         return 0;
 }
 
-static unsigned int channels_dmic[] = {
-        2, 4,
+static const unsigned int channels_dmic[] = {
+        1, 2, 3, 4,
 };
 
-static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
         .count = ARRAY_SIZE(channels_dmic),
         .list = channels_dmic,
         .mask = 0,
@@ -256,11 +253,11 @@ static const struct snd_soc_ops broxton_dmic_ops = {
         .startup = broxton_dmic_startup,
 };
 
-static unsigned int channels[] = {
+static const unsigned int channels[] = {
         2,
 };
 
-static struct snd_pcm_hw_constraint_list constraints_channels = {
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
         .count = ARRAY_SIZE(channels),
         .list = channels,
         .mask = 0,