3 files changed, 26 insertions, 4 deletions
diff --git a/sound/soc/apple/Kconfig b/sound/soc/apple/Kconfig
index 793f7782e0d7..e9c777cdb6e3 100644
--- a/sound/soc/apple/Kconfig
+++ b/sound/soc/apple/Kconfig
@@ -2,7 +2,6 @@ config SND_SOC_APPLE_MCA
 	tristate "Apple Silicon MCA driver"
 	depends on ARCH_APPLE || COMPILE_TEST
 	select SND_DMAENGINE_PCM
-	default ARCH_APPLE
 	help
 	  This option enables an ASoC platform driver for MCA peripherals found
 	  on Apple Silicon SoCs.
diff --git a/sound/soc/apple/Makefile b/sound/soc/apple/Makefile
index 7a30bf452817..1eb8fbef60c6 100644
--- a/sound/soc/apple/Makefile
+++ b/sound/soc/apple/Makefile
@@ -1,3 +1,3 @@
-snd-soc-apple-mca-objs	:= mca.o
+snd-soc-apple-mca-y	:= mca.o
 
 obj-$(CONFIG_SND_SOC_APPLE_MCA)	+= snd-soc-apple-mca.o
diff --git a/sound/soc/apple/mca.c b/sound/soc/apple/mca.c
index 3780aca71076..5dd24ab90d0f 100644
--- a/sound/soc/apple/mca.c
+++ b/sound/soc/apple/mca.c
@@ -464,6 +464,28 @@ err:
 	return -EINVAL;
 }
 
+static int mca_fe_startup(struct snd_pcm_substream *substream,
+			  struct snd_soc_dai *dai)
+{
+	struct mca_cluster *cl = mca_dai_to_cluster(dai);
+	unsigned int mask, nchannels;
+
+	if (cl->tdm_slots) {
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			mask = cl->tdm_tx_mask;
+		else
+			mask = cl->tdm_rx_mask;
+
+		nchannels = hweight32(mask);
+	} else {
+		nchannels = 2;
+	}
+
+	return snd_pcm_hw_constraint_minmax(substream->runtime,
+					    SNDRV_PCM_HW_PARAM_CHANNELS,
+					    1, nchannels);
+}
+
 static int mca_fe_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
 			       unsigned int rx_mask, int slots, int slot_width)
 {
@@ -616,7 +638,7 @@ static int mca_fe_hw_params(struct snd_pcm_substream *substream,
 			tdm_slot_width = 32;
 
 		if (tdm_slot_width < params_width(params)) {
-			dev_err(dev, "TDM slots too narrow (tdm=%d params=%d)\n",
+			dev_err(dev, "TDM slots too narrow (tdm=%u params=%d)\n",
 				tdm_slot_width, params_width(params));
 			return -EINVAL;
 		}
@@ -680,6 +702,7 @@ static int mca_fe_hw_params(struct snd_pcm_substream *substream,
 }
 
 static const struct snd_soc_dai_ops mca_fe_ops = {
+	.startup = mca_fe_startup,
 	.set_fmt = mca_fe_set_fmt,
 	.set_bclk_ratio = mca_set_bclk_ratio,
 	.set_tdm_slot = mca_fe_set_tdm_slot,
@@ -1179,7 +1202,7 @@ static struct platform_driver apple_mca_driver = {
 		.of_match_table = apple_mca_of_match,
 	},
 	.probe = apple_mca_probe,
-	.remove_new = apple_mca_remove,
+	.remove = apple_mca_remove,
 };
 module_platform_driver(apple_mca_driver);