ASoC: Intel: KMB: Add 8kHz audio support

Enable 8kHz audio support for Intel Keem Bay platform.

Signed-off-by: Michael Sit Wei Hong <michael.wei.hong.sit@intel.com>
Reviewed-by: Sia Jee Heng <jee.heng.sia@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20200730055319.1522-2-michael.wei.hong.sit@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/intel/keembay/kmb_platform.c b/sound/soc/intel/keembay/kmb_platform.c
index 4479883..dcc5ac5 100644 (file)
--- a/sound/soc/intel/keembay/kmb_platform.c
+++ b/sound/soc/intel/keembay/kmb_platform.c
@@ -28,8 +28,10 @@ static const struct snd_pcm_hardware kmb_pcm_hardware = {
                SNDRV_PCM_INFO_MMAP_VALID |
                SNDRV_PCM_INFO_BATCH |
                SNDRV_PCM_INFO_BLOCK_TRANSFER,
-       .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_48000,
-       .rate_min = 16000,
+       .rates = SNDRV_PCM_RATE_8000 |
+                SNDRV_PCM_RATE_16000 |
+                SNDRV_PCM_RATE_48000,
+       .rate_min = 8000,
        .rate_max = 48000,
        .formats = SNDRV_PCM_FMTBIT_S16_LE |
                   SNDRV_PCM_FMTBIT_S24_LE |
@@ -533,8 +535,10 @@ static struct snd_soc_dai_driver intel_kmb_platform_dai[] = {
                .playback = {
                        .channels_min = 2,
                        .channels_max = 2,
-                       .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_48000,
-                       .rate_min = 16000,
+                       .rates = SNDRV_PCM_RATE_8000 |
+                                SNDRV_PCM_RATE_16000 |
+                                SNDRV_PCM_RATE_48000,
+                       .rate_min = 8000,
                        .rate_max = 48000,
                        .formats = (SNDRV_PCM_FMTBIT_S32_LE |
                                    SNDRV_PCM_FMTBIT_S24_LE |
@@ -543,8 +547,14 @@ static struct snd_soc_dai_driver intel_kmb_platform_dai[] = {
                .capture = {
                        .channels_min = 2,
                        .channels_max = 2,
-                       .rates = SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_48000,
-                       .rate_min = 16000,
+                       /*
+                        * .channels_max will be overwritten
+                        * if provided by Device Tree
+                        */
+                       .rates = SNDRV_PCM_RATE_8000 |
+                                SNDRV_PCM_RATE_16000 |
+                                SNDRV_PCM_RATE_48000,
+                       .rate_min = 8000,
                        .rate_max = 48000,
                        .formats = (SNDRV_PCM_FMTBIT_S32_LE |
                                    SNDRV_PCM_FMTBIT_S24_LE |