1 files changed, 275 insertions, 158 deletions

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 317873bc0555..06ef3a3ac080 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -6,9 +6,11 @@
  */
 
 #include <linux/acpi.h>
+#include <linux/debugfs.h>
 #include <linux/delay.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/platform_device.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
@@ -16,6 +18,7 @@
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_intel.h>
 #include "cadence_master.h"
+#include "bus.h"
 #include "intel.h"
 
 /* Intel SHIM Registers Definition */
@@ -83,11 +86,14 @@
 
 /* Intel ALH Register definitions */
 #define SDW_ALH_STRMZCFG(x)		(0x000 + (0x4 * (x)))
+#define SDW_ALH_NUM_STREAMS		64
 
 #define SDW_ALH_STRMZCFG_DMAT_VAL	0x3
 #define SDW_ALH_STRMZCFG_DMAT		GENMASK(7, 0)
 #define SDW_ALH_STRMZCFG_CHN		GENMASK(19, 16)
 
+#define SDW_INTEL_QUIRK_MASK_BUS_DISABLE	BIT(1)
+
 enum intel_pdi_type {
 	INTEL_PDI_IN = 0,
 	INTEL_PDI_OUT = 1,
@@ -98,6 +104,9 @@ struct sdw_intel {
 	struct sdw_cdns cdns;
 	int instance;
 	struct sdw_intel_link_res *res;
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *debugfs;
+#endif
 };
 
 #define cdns_to_intel(_cdns) container_of(_cdns, struct sdw_intel, cdns)
@@ -162,6 +171,118 @@ static int intel_set_bit(void __iomem *base, int offset, u32 value, u32 mask)
 }
 
 /*
+ * debugfs
+ */
+#ifdef CONFIG_DEBUG_FS
+
+#define RD_BUF (2 * PAGE_SIZE)
+
+static ssize_t intel_sprintf(void __iomem *mem, bool l,
+			     char *buf, size_t pos, unsigned int reg)
+{
+	int value;
+
+	if (l)
+		value = intel_readl(mem, reg);
+	else
+		value = intel_readw(mem, reg);
+
+	return scnprintf(buf + pos, RD_BUF - pos, "%4x\t%4x\n", reg, value);
+}
+
+static int intel_reg_show(struct seq_file *s_file, void *data)
+{
+	struct sdw_intel *sdw = s_file->private;
+	void __iomem *s = sdw->res->shim;
+	void __iomem *a = sdw->res->alh;
+	char *buf;
+	ssize_t ret;
+	int i, j;
+	unsigned int links, reg;
+
+	buf = kzalloc(RD_BUF, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	links = intel_readl(s, SDW_SHIM_LCAP) & GENMASK(2, 0);
+
+	ret = scnprintf(buf, RD_BUF, "Register  Value\n");
+	ret += scnprintf(buf + ret, RD_BUF - ret, "\nShim\n");
+
+	for (i = 0; i < links; i++) {
+		reg = SDW_SHIM_LCAP + i * 4;
+		ret += intel_sprintf(s, true, buf, ret, reg);
+	}
+
+	for (i = 0; i < links; i++) {
+		ret += scnprintf(buf + ret, RD_BUF - ret, "\nLink%d\n", i);
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTLSCAP(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTLS0CM(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTLS1CM(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTLS2CM(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTLS3CM(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_PCMSCAP(i));
+
+		ret += scnprintf(buf + ret, RD_BUF - ret, "\n PCMSyCH registers\n");
+
+		/*
+		 * the value 10 is the number of PDIs. We will need a
+		 * cleanup to remove hard-coded Intel configurations
+		 * from cadence_master.c
+		 */
+		for (j = 0; j < 10; j++) {
+			ret += intel_sprintf(s, false, buf, ret,
+					SDW_SHIM_PCMSYCHM(i, j));
+			ret += intel_sprintf(s, false, buf, ret,
+					SDW_SHIM_PCMSYCHC(i, j));
+		}
+		ret += scnprintf(buf + ret, RD_BUF - ret, "\n PDMSCAP, IOCTL, CTMCTL\n");
+
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_PDMSCAP(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_IOCTL(i));
+		ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_CTMCTL(i));
+	}
+
+	ret += scnprintf(buf + ret, RD_BUF - ret, "\nWake registers\n");
+	ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_WAKEEN);
+	ret += intel_sprintf(s, false, buf, ret, SDW_SHIM_WAKESTS);
+
+	ret += scnprintf(buf + ret, RD_BUF - ret, "\nALH STRMzCFG\n");
+	for (i = 0; i < SDW_ALH_NUM_STREAMS; i++)
+		ret += intel_sprintf(a, true, buf, ret, SDW_ALH_STRMZCFG(i));
+
+	seq_printf(s_file, "%s", buf);
+	kfree(buf);
+
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(intel_reg);
+
+static void intel_debugfs_init(struct sdw_intel *sdw)
+{
+	struct dentry *root = sdw->cdns.bus.debugfs;
+
+	if (!root)
+		return;
+
+	sdw->debugfs = debugfs_create_dir("intel-sdw", root);
+
+	debugfs_create_file("intel-registers", 0400, sdw->debugfs, sdw,
+			    &intel_reg_fops);
+
+	sdw_cdns_debugfs_init(&sdw->cdns, sdw->debugfs);
+}
+
+static void intel_debugfs_exit(struct sdw_intel *sdw)
+{
+	debugfs_remove_recursive(sdw->debugfs);
+}
+#else
+static void intel_debugfs_init(struct sdw_intel *sdw) {}
+static void intel_debugfs_exit(struct sdw_intel *sdw) {}
+#endif /* CONFIG_DEBUG_FS */
+
+/*
  * shim ops
  */
 
@@ -289,6 +410,16 @@ intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num, bool pcm)
 
 	if (pcm) {
 		count = intel_readw(shim, SDW_SHIM_PCMSYCHC(link_id, pdi_num));
+
+		/*
+		 * WORKAROUND: on all existing Intel controllers, pdi
+		 * number 2 reports channel count as 1 even though it
+		 * supports 8 channels. Performing hardcoding for pdi
+		 * number 2.
+		 */
+		if (pdi_num == 2)
+			count = 7;
+
 	} else {
 		count = intel_readw(shim, SDW_SHIM_PDMSCAP(link_id));
 		count = ((count & SDW_SHIM_PDMSCAP_CPSS) >>
@@ -349,7 +480,10 @@ intel_pdi_shim_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
 	unsigned int link_id = sdw->instance;
 	int pdi_conf = 0;
 
-	pdi->intel_alh_id = (link_id * 16) + pdi->num + 5;
+	/* the Bulk and PCM streams are not contiguous */
+	pdi->intel_alh_id = (link_id * 16) + pdi->num + 3;
+	if (pdi->num >= 2)
+		pdi->intel_alh_id += 2;
 
 	/*
 	 * Program stream parameters to stream SHIM register
@@ -378,7 +512,10 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
 	unsigned int link_id = sdw->instance;
 	unsigned int conf;
 
-	pdi->intel_alh_id = (link_id * 16) + pdi->num + 5;
+	/* the Bulk and PCM streams are not contiguous */
+	pdi->intel_alh_id = (link_id * 16) + pdi->num + 3;
+	if (pdi->num >= 2)
+		pdi->intel_alh_id += 2;
 
 	/* Program Stream config ALH register */
 	conf = intel_readl(alh, SDW_ALH_STRMZCFG(pdi->intel_alh_id));
@@ -392,15 +529,24 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
 	intel_writel(alh, SDW_ALH_STRMZCFG(pdi->intel_alh_id), conf);
 }
 
-static int intel_config_stream(struct sdw_intel *sdw,
+static int intel_params_stream(struct sdw_intel *sdw,
 			       struct snd_pcm_substream *substream,
 			       struct snd_soc_dai *dai,
-			       struct snd_pcm_hw_params *hw_params, int link_id)
+			       struct snd_pcm_hw_params *hw_params,
+			       int link_id, int alh_stream_id)
 {
-	if (sdw->res->ops && sdw->res->ops->config_stream)
-		return sdw->res->ops->config_stream(sdw->res->arg,
-				substream, dai, hw_params, link_id);
-
+	struct sdw_intel_link_res *res = sdw->res;
+	struct sdw_intel_stream_params_data params_data;
+
+	params_data.substream = substream;
+	params_data.dai = dai;
+	params_data.hw_params = hw_params;
+	params_data.link_id = link_id;
+	params_data.alh_stream_id = alh_stream_id;
+
+	if (res->ops && res->ops->params_stream && res->dev)
+		return res->ops->params_stream(res->dev,
+					       &params_data);
 	return -EIO;
 }
 
@@ -471,66 +617,6 @@ static int intel_post_bank_switch(struct sdw_bus *bus)
  * DAI routines
  */
 
-static struct sdw_cdns_port *intel_alloc_port(struct sdw_intel *sdw,
-					      u32 ch, u32 dir, bool pcm)
-{
-	struct sdw_cdns *cdns = &sdw->cdns;
-	struct sdw_cdns_port *port = NULL;
-	int i, ret = 0;
-
-	for (i = 0; i < cdns->num_ports; i++) {
-		if (cdns->ports[i].assigned)
-			continue;
-
-		port = &cdns->ports[i];
-		port->assigned = true;
-		port->direction = dir;
-		port->ch = ch;
-		break;
-	}
-
-	if (!port) {
-		dev_err(cdns->dev, "Unable to find a free port\n");
-		return NULL;
-	}
-
-	if (pcm) {
-		ret = sdw_cdns_alloc_stream(cdns, &cdns->pcm, port, ch, dir);
-		if (ret)
-			goto out;
-
-		intel_pdi_shim_configure(sdw, port->pdi);
-		sdw_cdns_config_stream(cdns, port, ch, dir, port->pdi);
-
-		intel_pdi_alh_configure(sdw, port->pdi);
-
-	} else {
-		ret = sdw_cdns_alloc_stream(cdns, &cdns->pdm, port, ch, dir);
-	}
-
-out:
-	if (ret) {
-		port->assigned = false;
-		port = NULL;
-	}
-
-	return port;
-}
-
-static void intel_port_cleanup(struct sdw_cdns_dma_data *dma)
-{
-	int i;
-
-	for (i = 0; i < dma->nr_ports; i++) {
-		if (dma->port[i]) {
-			dma->port[i]->pdi->assigned = false;
-			dma->port[i]->pdi = NULL;
-			dma->port[i]->assigned = false;
-			dma->port[i] = NULL;
-		}
-	}
-}
-
 static int intel_hw_params(struct snd_pcm_substream *substream,
 			   struct snd_pcm_hw_params *params,
 			   struct snd_soc_dai *dai)
@@ -538,9 +624,11 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
 	struct sdw_intel *sdw = cdns_to_intel(cdns);
 	struct sdw_cdns_dma_data *dma;
+	struct sdw_cdns_pdi *pdi;
 	struct sdw_stream_config sconfig;
 	struct sdw_port_config *pconfig;
-	int ret, i, ch, dir;
+	int ch, dir;
+	int ret;
 	bool pcm = true;
 
 	dma = snd_soc_dai_get_dma_data(dai, substream);
@@ -553,38 +641,31 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	else
 		dir = SDW_DATA_DIR_TX;
 
-	if (dma->stream_type == SDW_STREAM_PDM) {
-		/* TODO: Check whether PDM decimator is already in use */
-		dma->nr_ports = sdw_cdns_get_stream(cdns, &cdns->pdm, ch, dir);
+	if (dma->stream_type == SDW_STREAM_PDM)
 		pcm = false;
-	} else {
-		dma->nr_ports = sdw_cdns_get_stream(cdns, &cdns->pcm, ch, dir);
-	}
 
-	if (!dma->nr_ports) {
-		dev_err(dai->dev, "ports/resources not available\n");
-		return -EINVAL;
+	if (pcm)
+		pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
+	else
+		pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pdm, ch, dir, dai->id);
+
+	if (!pdi) {
+		ret = -EINVAL;
+		goto error;
 	}
 
-	dma->port = kcalloc(dma->nr_ports, sizeof(*dma->port), GFP_KERNEL);
-	if (!dma->port)
-		return -ENOMEM;
+	/* do run-time configurations for SHIM, ALH and PDI/PORT */
+	intel_pdi_shim_configure(sdw, pdi);
+	intel_pdi_alh_configure(sdw, pdi);
+	sdw_cdns_config_stream(cdns, ch, dir, pdi);
 
-	for (i = 0; i < dma->nr_ports; i++) {
-		dma->port[i] = intel_alloc_port(sdw, ch, dir, pcm);
-		if (!dma->port[i]) {
-			ret = -EINVAL;
-			goto port_error;
-		}
-	}
 
 	/* Inform DSP about PDI stream number */
-	for (i = 0; i < dma->nr_ports; i++) {
-		ret = intel_config_stream(sdw, substream, dai, params,
-					  dma->port[i]->pdi->intel_alh_id);
-		if (ret)
-			goto port_error;
-	}
+	ret = intel_params_stream(sdw, substream, dai, params,
+				  sdw->instance,
+				  pdi->intel_alh_id);
+	if (ret)
+		goto error;
 
 	sconfig.direction = dir;
 	sconfig.ch_count = ch;
@@ -599,32 +680,22 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	}
 
 	/* Port configuration */
-	pconfig = kcalloc(dma->nr_ports, sizeof(*pconfig), GFP_KERNEL);
+	pconfig = kcalloc(1, sizeof(*pconfig), GFP_KERNEL);
 	if (!pconfig) {
 		ret =  -ENOMEM;
-		goto port_error;
+		goto error;
 	}
 
-	for (i = 0; i < dma->nr_ports; i++) {
-		pconfig[i].num = dma->port[i]->num;
-		pconfig[i].ch_mask = (1 << ch) - 1;
-	}
+	pconfig->num = pdi->num;
+	pconfig->ch_mask = (1 << ch) - 1;
 
 	ret = sdw_stream_add_master(&cdns->bus, &sconfig,
-				    pconfig, dma->nr_ports, dma->stream);
-	if (ret) {
+				    pconfig, 1, dma->stream);
+	if (ret)
 		dev_err(cdns->dev, "add master to stream failed:%d\n", ret);
-		goto stream_error;
-	}
-
-	kfree(pconfig);
-	return ret;
 
-stream_error:
 	kfree(pconfig);
-port_error:
-	intel_port_cleanup(dma);
-	kfree(dma->port);
+error:
 	return ret;
 }
 
@@ -644,11 +715,22 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 		dev_err(dai->dev, "remove master from stream %s failed: %d\n",
 			dma->stream->name, ret);
 
-	intel_port_cleanup(dma);
-	kfree(dma->port);
 	return ret;
 }
 
+static void intel_shutdown(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct sdw_cdns_dma_data *dma;
+
+	dma = snd_soc_dai_get_dma_data(dai, substream);
+	if (!dma)
+		return;
+
+	snd_soc_dai_set_dma_data(dai, substream, NULL);
+	kfree(dma);
+}
+
 static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
 				    void *stream, int direction)
 {
@@ -664,14 +746,14 @@ static int intel_pdm_set_sdw_stream(struct snd_soc_dai *dai,
 static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
 	.hw_params = intel_hw_params,
 	.hw_free = intel_hw_free,
-	.shutdown = sdw_cdns_shutdown,
+	.shutdown = intel_shutdown,
 	.set_sdw_stream = intel_pcm_set_sdw_stream,
 };
 
 static const struct snd_soc_dai_ops intel_pdm_dai_ops = {
 	.hw_params = intel_hw_params,
 	.hw_free = intel_hw_free,
-	.shutdown = sdw_cdns_shutdown,
+	.shutdown = intel_shutdown,
 	.set_sdw_stream = intel_pdm_set_sdw_stream,
 };
 
@@ -697,14 +779,6 @@ static int intel_create_dai(struct sdw_cdns *cdns,
 			return -ENOMEM;
 
 		if (type == INTEL_PDI_BD || type == INTEL_PDI_OUT) {
-			dais[i].playback.stream_name =
-				kasprintf(GFP_KERNEL, "SDW%d Tx%d",
-					  cdns->instance, i);
-			if (!dais[i].playback.stream_name) {
-				kfree(dais[i].name);
-				return -ENOMEM;
-			}
-
 			dais[i].playback.channels_min = 1;
 			dais[i].playback.channels_max = max_ch;
 			dais[i].playback.rates = SNDRV_PCM_RATE_48000;
@@ -712,23 +786,12 @@ static int intel_create_dai(struct sdw_cdns *cdns,
 		}
 
 		if (type == INTEL_PDI_BD || type == INTEL_PDI_IN) {
-			dais[i].capture.stream_name =
-				kasprintf(GFP_KERNEL, "SDW%d Rx%d",
-					  cdns->instance, i);
-			if (!dais[i].capture.stream_name) {
-				kfree(dais[i].name);
-				kfree(dais[i].playback.stream_name);
-				return -ENOMEM;
-			}
-
 			dais[i].capture.channels_min = 1;
 			dais[i].capture.channels_max = max_ch;
 			dais[i].capture.rates = SNDRV_PCM_RATE_48000;
 			dais[i].capture.formats = SNDRV_PCM_FMTBIT_S16_LE;
 		}
 
-		dais[i].id = SDW_DAI_ID_RANGE_START + i;
-
 		if (pcm)
 			dais[i].ops = &intel_pcm_dai_ops;
 		else
@@ -755,7 +818,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
 	/* Create PCM DAIs */
 	stream = &cdns->pcm;
 
-	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, stream->num_in,
+	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
 			       off, stream->num_ch_in, true);
 	if (ret)
 		return ret;
@@ -786,7 +849,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
 	if (ret)
 		return ret;
 
-	off += cdns->pdm.num_bd;
+	off += cdns->pdm.num_out;
 	ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pdm.num_bd,
 			       off, stream->num_ch_bd, false);
 	if (ret)
@@ -796,21 +859,47 @@ static int intel_register_dai(struct sdw_intel *sdw)
 					  dais, num_dai);
 }
 
+static int sdw_master_read_intel_prop(struct sdw_bus *bus)
+{
+	struct sdw_master_prop *prop = &bus->prop;
+	struct fwnode_handle *link;
+	char name[32];
+	u32 quirk_mask;
+
+	/* Find master handle */
+	snprintf(name, sizeof(name),
+		 "mipi-sdw-link-%d-subproperties", bus->link_id);
+
+	link = device_get_named_child_node(bus->dev, name);
+	if (!link) {
+		dev_err(bus->dev, "Master node %s not found\n", name);
+		return -EIO;
+	}
+
+	fwnode_property_read_u32(link,
+				 "intel-sdw-ip-clock",
+				 &prop->mclk_freq);
+
+	/* the values reported by BIOS are the 2x clock, not the bus clock */
+	prop->mclk_freq /= 2;
+
+	fwnode_property_read_u32(link,
+				 "intel-quirk-mask",
+				 &quirk_mask);
+
+	if (quirk_mask & SDW_INTEL_QUIRK_MASK_BUS_DISABLE)
+		prop->hw_disabled = true;
+
+	return 0;
+}
+
 static int intel_prop_read(struct sdw_bus *bus)
 {
 	/* Initialize with default handler to read all DisCo properties */
 	sdw_master_read_prop(bus);
 
-	/* BIOS is not giving some values correctly. So, lets override them */
-	bus->prop.num_clk_freq = 1;
-	bus->prop.clk_freq = devm_kcalloc(bus->dev, bus->prop.num_clk_freq,
-					  sizeof(*bus->prop.clk_freq),
-					  GFP_KERNEL);
-	if (!bus->prop.clk_freq)
-		return -ENOMEM;
-
-	bus->prop.clk_freq[0] = bus->prop.max_clk_freq;
-	bus->prop.err_threshold = 5;
+	/* read Intel-specific properties */
+	sdw_master_read_intel_prop(bus);
 
 	return 0;
 }
@@ -825,6 +914,15 @@ static struct sdw_master_ops sdw_intel_ops = {
 	.post_bank_switch = intel_post_bank_switch,
 };
 
+static int intel_init(struct sdw_intel *sdw)
+{
+	/* Initialize shim and controller */
+	intel_link_power_up(sdw);
+	intel_shim_init(sdw);
+
+	return sdw_cdns_init(&sdw->cdns, false);
+}
+
 /*
  * probe and init
  */
@@ -858,19 +956,20 @@ static int intel_probe(struct platform_device *pdev)
 	ret = sdw_add_bus_master(&sdw->cdns.bus);
 	if (ret) {
 		dev_err(&pdev->dev, "sdw_add_bus_master fail: %d\n", ret);
-		goto err_master_reg;
+		return ret;
 	}
 
-	/* Initialize shim and controller */
-	intel_link_power_up(sdw);
-	intel_shim_init(sdw);
+	if (sdw->cdns.bus.prop.hw_disabled) {
+		dev_info(&pdev->dev, "SoundWire master %d is disabled, ignoring\n",
+			 sdw->cdns.bus.link_id);
+		return 0;
+	}
 
-	ret = sdw_cdns_init(&sdw->cdns);
+	/* Initialize shim, controller and Cadence IP */
+	ret = intel_init(sdw);
 	if (ret)
 		goto err_init;
 
-	ret = sdw_cdns_enable_interrupt(&sdw->cdns);
-
 	/* Read the PDI config and initialize cadence PDI */
 	intel_pdi_init(sdw, &config);
 	ret = sdw_cdns_pdi_init(&sdw->cdns, config);
@@ -888,21 +987,35 @@ static int intel_probe(struct platform_device *pdev)
 		goto err_init;
 	}
 
+	ret = sdw_cdns_enable_interrupt(&sdw->cdns, true);
+	if (ret < 0) {
+		dev_err(sdw->cdns.dev, "cannot enable interrupts\n");
+		goto err_init;
+	}
+
+	ret = sdw_cdns_exit_reset(&sdw->cdns);
+	if (ret < 0) {
+		dev_err(sdw->cdns.dev, "unable to exit bus reset sequence\n");
+		goto err_interrupt;
+	}
+
 	/* Register DAIs */
 	ret = intel_register_dai(sdw);
 	if (ret) {
 		dev_err(sdw->cdns.dev, "DAI registration failed: %d\n", ret);
 		snd_soc_unregister_component(sdw->cdns.dev);
-		goto err_dai;
+		goto err_interrupt;
 	}
 
+	intel_debugfs_init(sdw);
+
 	return 0;
 
-err_dai:
+err_interrupt:
+	sdw_cdns_enable_interrupt(&sdw->cdns, false);
 	free_irq(sdw->res->irq, sdw);
 err_init:
 	sdw_delete_bus_master(&sdw->cdns.bus);
-err_master_reg:
 	return ret;
 }
 
@@ -912,8 +1025,12 @@ static int intel_remove(struct platform_device *pdev)
 
 	sdw = platform_get_drvdata(pdev);
 
-	free_irq(sdw->res->irq, sdw);
-	snd_soc_unregister_component(sdw->cdns.dev);
+	if (!sdw->cdns.bus.prop.hw_disabled) {
+		intel_debugfs_exit(sdw);
+		sdw_cdns_enable_interrupt(&sdw->cdns, false);
+		free_irq(sdw->res->irq, sdw);
+		snd_soc_unregister_component(sdw->cdns.dev);
+	}
 	sdw_delete_bus_master(&sdw->cdns.bus);
 
 	return 0;