soundwire updates for 6.6

- Core support for soundwire device number allocation
  - intel driver updates for adding hw_params for DAI ops, hybrid number
    allocation and power managemnt callback updates
  - DT header include changes for subsystem
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Merge tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:
 "Device numbering and intel driver changes are main features:

   - Core support for soundwire device number allocation

   - intel driver updates for adding hw_params for DAI ops, hybrid
     number allocation and power managemnt callback updates

   - DT header include changes for subsystem"

* tag 'soundwire-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: intel_ace2x: add DAI hw_params/prepare/hw_free callbacks
  soundwire: intel_auxdevice: add hybrid IDA-based device_number allocation
  soundwire: bus: add callbacks for device_number allocation
  soundwire: extend parameters of new_peripheral_assigned() callback
  soundWire: intel_auxdevice: resume 'sdw-master' on startup and system resume
  soundwire: intel_auxdevice: enable pm_runtime earlier on startup
  soundwire: Explicitly include correct DT includes

drivers/soundwire/bus.c

@@ -13,7 +13,6 @@
 #include "sysfs_local.h"
 
 static DEFINE_IDA(sdw_bus_ida);
-static DEFINE_IDA(sdw_peripheral_ida);
 
 static int sdw_get_id(struct sdw_bus *bus)
 {
@@ -194,8 +193,8 @@ static int sdw_delete_slave(struct device *dev, void *data)
 
 	if (slave->dev_num) { /* clear dev_num if assigned */
 		clear_bit(slave->dev_num, bus->assigned);
-		if (bus->dev_num_ida_min)
-			ida_free(&sdw_peripheral_ida, slave->dev_num);
+		if (bus->ops && bus->ops->put_device_num)
+			bus->ops->put_device_num(bus, slave);
 	}
 	list_del_init(&slave->node);
 	mutex_unlock(&bus->bus_lock);
@@ -739,16 +738,15 @@ EXPORT_SYMBOL(sdw_compare_devid);
 /* called with bus_lock held */
 static int sdw_get_device_num(struct sdw_slave *slave)
 {
+	struct sdw_bus *bus = slave->bus;
 	int bit;
 
-	if (slave->bus->dev_num_ida_min) {
-		bit = ida_alloc_range(&sdw_peripheral_ida,
-				      slave->bus->dev_num_ida_min, SDW_MAX_DEVICES,
-				      GFP_KERNEL);
+	if (bus->ops && bus->ops->get_device_num) {
+		bit = bus->ops->get_device_num(bus, slave);
 		if (bit < 0)
 			goto err;
 	} else {
-		bit = find_first_zero_bit(slave->bus->assigned, SDW_MAX_DEVICES);
+		bit = find_first_zero_bit(bus->assigned, SDW_MAX_DEVICES);
 		if (bit == SDW_MAX_DEVICES) {
 			bit = -ENODEV;
 			goto err;
@@ -759,7 +757,7 @@ static int sdw_get_device_num(struct sdw_slave *slave)
 	 * Do not update dev_num in Slave data structure here,
 	 * Update once program dev_num is successful
 	 */
-	set_bit(bit, slave->bus->assigned);
+	set_bit(bit, bus->assigned);
 
 err:
 	return bit;
@@ -810,7 +808,7 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
 	slave->dev_num = slave->dev_num_sticky;
 
 	if (bus->ops && bus->ops->new_peripheral_assigned)
-		bus->ops->new_peripheral_assigned(bus, dev_num);
+		bus->ops->new_peripheral_assigned(bus, slave, dev_num);
 
 	return 0;
 }

drivers/soundwire/intel_ace2x.c

@@ -10,6 +10,7 @@
 #include <linux/soundwire/sdw_registers.h>
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_intel.h>
+#include <sound/pcm_params.h>
 #include <sound/hda-mlink.h>
 #include "cadence_master.h"
 #include "bus.h"
@@ -191,10 +192,292 @@ static bool intel_check_cmdsync_unlocked(struct sdw_intel *sdw)
 	return hdac_bus_eml_sdw_check_cmdsync_unlocked(sdw->link_res->hbus);
 }
 
+/* DAI callbacks */
+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, int alh_stream_id)
+{
+	struct sdw_intel_link_res *res = sdw->link_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;
+}
+
+static int intel_free_stream(struct sdw_intel *sdw,
+			     struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai,
+			     int link_id)
+
+{
+	struct sdw_intel_link_res *res = sdw->link_res;
+	struct sdw_intel_stream_free_data free_data;
+
+	free_data.substream = substream;
+	free_data.dai = dai;
+	free_data.link_id = link_id;
+
+	if (res->ops && res->ops->free_stream && res->dev)
+		return res->ops->free_stream(res->dev,
+					     &free_data);
+
+	return 0;
+}
+
 /*
  * DAI operations
  */
+static int intel_hw_params(struct snd_pcm_substream *substream,
+			   struct snd_pcm_hw_params *params,
+			   struct snd_soc_dai *dai)
+{
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	struct sdw_cdns_dai_runtime *dai_runtime;
+	struct sdw_cdns_pdi *pdi;
+	struct sdw_stream_config sconfig;
+	struct sdw_port_config *pconfig;
+	int ch, dir;
+	int ret;
+
+	dai_runtime = cdns->dai_runtime_array[dai->id];
+	if (!dai_runtime)
+		return -EIO;
+
+	ch = params_channels(params);
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+		dir = SDW_DATA_DIR_RX;
+	else
+		dir = SDW_DATA_DIR_TX;
+
+	pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id);
+
+	if (!pdi) {
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/* the SHIM will be configured in the callback functions */
+
+	sdw_cdns_config_stream(cdns, ch, dir, pdi);
+
+	/* store pdi and state, may be needed in prepare step */
+	dai_runtime->paused = false;
+	dai_runtime->suspended = false;
+	dai_runtime->pdi = pdi;
+
+	/* Inform DSP about PDI stream number */
+	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;
+	sconfig.frame_rate = params_rate(params);
+	sconfig.type = dai_runtime->stream_type;
+
+	sconfig.bps = snd_pcm_format_width(params_format(params));
+
+	/* Port configuration */
+	pconfig = kzalloc(sizeof(*pconfig), GFP_KERNEL);
+	if (!pconfig) {
+		ret =  -ENOMEM;
+		goto error;
+	}
+
+	pconfig->num = pdi->num;
+	pconfig->ch_mask = (1 << ch) - 1;
+
+	ret = sdw_stream_add_master(&cdns->bus, &sconfig,
+				    pconfig, 1, dai_runtime->stream);
+	if (ret)
+		dev_err(cdns->dev, "add master to stream failed:%d\n", ret);
+
+	kfree(pconfig);
+error:
+	return ret;
+}
+
+static int intel_prepare(struct snd_pcm_substream *substream,
+			 struct snd_soc_dai *dai)
+{
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	struct sdw_cdns_dai_runtime *dai_runtime;
+	int ch, dir;
+	int ret = 0;
+
+	dai_runtime = cdns->dai_runtime_array[dai->id];
+	if (!dai_runtime) {
+		dev_err(dai->dev, "failed to get dai runtime in %s\n",
+			__func__);
+		return -EIO;
+	}
+
+	if (dai_runtime->suspended) {
+		struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+		struct snd_pcm_hw_params *hw_params;
+
+		hw_params = &rtd->dpcm[substream->stream].hw_params;
+
+		dai_runtime->suspended = false;
+
+		/*
+		 * .prepare() is called after system resume, where we
+		 * need to reinitialize the SHIM/ALH/Cadence IP.
+		 * .prepare() is also called to deal with underflows,
+		 * but in those cases we cannot touch ALH/SHIM
+		 * registers
+		 */
+
+		/* configure stream */
+		ch = params_channels(hw_params);
+		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+			dir = SDW_DATA_DIR_RX;
+		else
+			dir = SDW_DATA_DIR_TX;
+
+		/* the SHIM will be configured in the callback functions */
+
+		sdw_cdns_config_stream(cdns, ch, dir, dai_runtime->pdi);
+
+		/* Inform DSP about PDI stream number */
+		ret = intel_params_stream(sdw, substream, dai,
+					  hw_params,
+					  sdw->instance,
+					  dai_runtime->pdi->intel_alh_id);
+	}
+
+	return ret;
+}
+
+static int
+intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	struct sdw_cdns_dai_runtime *dai_runtime;
+	int ret;
+
+	dai_runtime = cdns->dai_runtime_array[dai->id];
+	if (!dai_runtime)
+		return -EIO;
+
+	/*
+	 * The sdw stream state will transition to RELEASED when stream->
+	 * master_list is empty. So the stream state will transition to
+	 * DEPREPARED for the first cpu-dai and to RELEASED for the last
+	 * cpu-dai.
+	 */
+	ret = sdw_stream_remove_master(&cdns->bus, dai_runtime->stream);
+	if (ret < 0) {
+		dev_err(dai->dev, "remove master from stream %s failed: %d\n",
+			dai_runtime->stream->name, ret);
+		return ret;
+	}
+
+	ret = intel_free_stream(sdw, substream, dai, sdw->instance);
+	if (ret < 0) {
+		dev_err(dai->dev, "intel_free_stream: failed %d\n", ret);
+		return ret;
+	}
+
+	dai_runtime->pdi = NULL;
+
+	return 0;
+}
+
+static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
+				    void *stream, int direction)
+{
+	return cdns_set_sdw_stream(dai, stream, direction);
+}
+
+static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
+				  int direction)
+{
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_cdns_dai_runtime *dai_runtime;
+
+	dai_runtime = cdns->dai_runtime_array[dai->id];
+	if (!dai_runtime)
+		return ERR_PTR(-EINVAL);
+
+	return dai_runtime->stream;
+}
+
+static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
+{
+	struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
+	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	struct sdw_intel_link_res *res = sdw->link_res;
+	struct sdw_cdns_dai_runtime *dai_runtime;
+	int ret = 0;
+
+	/*
+	 * The .trigger callback is used to program HDaudio DMA and send required IPC to audio
+	 * firmware.
+	 */
+	if (res->ops && res->ops->trigger) {
+		ret = res->ops->trigger(substream, cmd, dai);
+		if (ret < 0)
+			return ret;
+	}
+
+	dai_runtime = cdns->dai_runtime_array[dai->id];
+	if (!dai_runtime) {
+		dev_err(dai->dev, "failed to get dai runtime in %s\n",
+			__func__);
+		return -EIO;
+	}
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+
+		/*
+		 * The .prepare callback is used to deal with xruns and resume operations.
+		 * In the case of xruns, the DMAs and SHIM registers cannot be touched,
+		 * but for resume operations the DMAs and SHIM registers need to be initialized.
+		 * the .trigger callback is used to track the suspend case only.
+		 */
+
+		dai_runtime->suspended = true;
+
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		dai_runtime->paused = true;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		dai_runtime->paused = false;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
 static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
+	.hw_params = intel_hw_params,
+	.prepare = intel_prepare,
+	.hw_free = intel_hw_free,
+	.trigger = intel_trigger,
+	.set_stream = intel_pcm_set_sdw_stream,
+	.get_stream = intel_get_sdw_stream,
 };
 
 static const struct snd_soc_component_driver dai_component = {

drivers/soundwire/intel_auxdevice.c

@@ -23,9 +23,6 @@
 #include "intel.h"
 #include "intel_auxdevice.h"
 
-/* IDA min selected to avoid conflicts with HDaudio/iDISP SDI values */
-#define INTEL_DEV_NUM_IDA_MIN           4
-
 #define INTEL_MASTER_SUSPEND_DELAY_MS	3000
 
 /*
@@ -44,6 +41,39 @@ static int md_flags;
 module_param_named(sdw_md_flags, md_flags, int, 0444);
 MODULE_PARM_DESC(sdw_md_flags, "SoundWire Intel Master device flags (0x0 all off)");
 
+struct wake_capable_part {
+	const u16 mfg_id;
+	const u16 part_id;
+};
+
+static struct wake_capable_part wake_capable_list[] = {
+	{0x025d, 0x5682},
+	{0x025d, 0x700},
+	{0x025d, 0x711},
+	{0x025d, 0x1712},
+	{0x025d, 0x1713},
+	{0x025d, 0x1716},
+	{0x025d, 0x1717},
+	{0x025d, 0x712},
+	{0x025d, 0x713},
+	{0x025d, 0x714},
+	{0x025d, 0x715},
+	{0x025d, 0x716},
+	{0x025d, 0x717},
+	{0x025d, 0x722},
+};
+
+static bool is_wake_capable(struct sdw_slave *slave)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(wake_capable_list); i++)
+		if (slave->id.part_id == wake_capable_list[i].part_id &&
+		    slave->id.mfg_id == wake_capable_list[i].mfg_id)
+			return true;
+	return false;
+}
+
 static int generic_pre_bank_switch(struct sdw_bus *bus)
 {
 	struct sdw_cdns *cdns = bus_to_cdns(bus);
@@ -60,18 +90,32 @@ static int generic_post_bank_switch(struct sdw_bus *bus)
 	return sdw->link_res->hw_ops->post_bank_switch(sdw);
 }
 
-static void generic_new_peripheral_assigned(struct sdw_bus *bus, int dev_num)
+static void generic_new_peripheral_assigned(struct sdw_bus *bus,
+					    struct sdw_slave *slave,
+					    int dev_num)
 {
 	struct sdw_cdns *cdns = bus_to_cdns(bus);
 	struct sdw_intel *sdw = cdns_to_intel(cdns);
+	int dev_num_min;
+	int dev_num_max;
+	bool wake_capable = slave->prop.wake_capable || is_wake_capable(slave);
+
+	if (wake_capable) {
+		dev_num_min = SDW_INTEL_DEV_NUM_IDA_MIN;
+		dev_num_max = SDW_MAX_DEVICES;
+	} else {
+		dev_num_min = 1;
+		dev_num_max = SDW_INTEL_DEV_NUM_IDA_MIN - 1;
+	}
 
 	/* paranoia check, this should never happen */
-	if (dev_num < INTEL_DEV_NUM_IDA_MIN || dev_num > SDW_MAX_DEVICES)  {
-		dev_err(bus->dev, "%s: invalid dev_num %d\n", __func__, dev_num);
+	if (dev_num < dev_num_min || dev_num > dev_num_max)  {
+		dev_err(bus->dev, "%s: invalid dev_num %d, wake supported %d\n",
+			__func__, dev_num, slave->prop.wake_capable);
 		return;
 	}
 
-	if (sdw->link_res->hw_ops->program_sdi)
+	if (sdw->link_res->hw_ops->program_sdi && wake_capable)
 		sdw->link_res->hw_ops->program_sdi(sdw, dev_num);
 }
 
@@ -123,6 +167,30 @@ static int intel_prop_read(struct sdw_bus *bus)
 	return 0;
 }
 
+static DEFINE_IDA(intel_peripheral_ida);
+
+static int intel_get_device_num_ida(struct sdw_bus *bus, struct sdw_slave *slave)
+{
+	int bit;
+
+	if (slave->prop.wake_capable || is_wake_capable(slave))
+		return ida_alloc_range(&intel_peripheral_ida,
+				       SDW_INTEL_DEV_NUM_IDA_MIN, SDW_MAX_DEVICES,
+				       GFP_KERNEL);
+
+	bit = find_first_zero_bit(slave->bus->assigned, SDW_MAX_DEVICES);
+	if (bit == SDW_MAX_DEVICES)
+		return -ENODEV;
+
+	return bit;
+}
+
+static void intel_put_device_num_ida(struct sdw_bus *bus, struct sdw_slave *slave)
+{
+	if (slave->prop.wake_capable || is_wake_capable(slave))
+		ida_free(&intel_peripheral_ida, slave->dev_num);
+}
+
 static struct sdw_master_ops sdw_intel_ops = {
 	.read_prop = intel_prop_read,
 	.override_adr = sdw_dmi_override_adr,
@@ -132,6 +200,8 @@ static struct sdw_master_ops sdw_intel_ops = {
 	.pre_bank_switch = generic_pre_bank_switch,
 	.post_bank_switch = generic_post_bank_switch,
 	.read_ping_status = cdns_read_ping_status,
+	.get_device_num =  intel_get_device_num_ida,
+	.put_device_num = intel_put_device_num_ida,
 	.new_peripheral_assigned = generic_new_peripheral_assigned,
 };
 
@@ -165,7 +235,6 @@ static int intel_link_probe(struct auxiliary_device *auxdev,
 	cdns->msg_count = 0;
 
 	bus->link_id = auxdev->id;
-	bus->dev_num_ida_min = INTEL_DEV_NUM_IDA_MIN;
 	bus->clk_stop_timeout = 1;
 
 	sdw_cdns_probe(cdns);
@@ -248,13 +317,6 @@ int intel_link_startup(struct auxiliary_device *auxdev)
 
 	sdw_intel_debugfs_init(sdw);
 
-	/* start bus */
-	ret = sdw_intel_start_bus(sdw);
-	if (ret) {
-		dev_err(dev, "bus start failed: %d\n", ret);
-		goto err_power_up;
-	}
-
 	/* Enable runtime PM */
 	if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME)) {
 		pm_runtime_set_autosuspend_delay(dev,
@@ -264,6 +326,15 @@ int intel_link_startup(struct auxiliary_device *auxdev)
 
 		pm_runtime_set_active(dev);
 		pm_runtime_enable(dev);
+
+		pm_runtime_resume(bus->dev);
+	}
+
+	/* start bus */
+	ret = sdw_intel_start_bus(sdw);
+	if (ret) {
+		dev_err(dev, "bus start failed: %d\n", ret);
+		goto err_pm_runtime;
 	}
 
 	clock_stop_quirks = sdw->link_res->clock_stop_quirks;
@@ -293,12 +364,18 @@ int intel_link_startup(struct auxiliary_device *auxdev)
 	 * with a delay. A more complete solution would require the
 	 * definition of Master properties.
 	 */
-	if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE))
+	if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE)) {
+		pm_runtime_mark_last_busy(bus->dev);
+		pm_runtime_mark_last_busy(dev);
 		pm_runtime_idle(dev);
+	}
 
 	sdw->startup_done = true;
 	return 0;
 
+err_pm_runtime:
+	if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME))
+		pm_runtime_disable(dev);
 err_power_up:
 	sdw_intel_link_power_down(sdw);
 err_init:
@@ -552,6 +629,8 @@ static int __maybe_unused intel_resume(struct device *dev)
 		pm_runtime_mark_last_busy(dev);
 		pm_runtime_enable(dev);
 
+		pm_runtime_resume(bus->dev);
+
 		link_flags = md_flags >> (bus->link_id * 8);
 
 		if (!(link_flags & SDW_INTEL_MASTER_DISABLE_PM_RUNTIME_IDLE))
@@ -587,6 +666,7 @@ static int __maybe_unused intel_resume(struct device *dev)
 	 * counters and delay the pm_runtime suspend by several
 	 * seconds, by when all enumeration should be complete.
 	 */
+	pm_runtime_mark_last_busy(bus->dev);
 	pm_runtime_mark_last_busy(dev);
 
 	return 0;

drivers/soundwire/qcom.c

@@ -10,7 +10,6 @@
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/of_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/reset.h>

include/linux/soundwire/sdw.h

@@ -858,6 +858,8 @@ struct sdw_defer {
  * @post_bank_switch: Callback for post bank switch
  * @read_ping_status: Read status from PING frames, reported with two bits per Device.
  * Bits 31:24 are reserved.
+ * @get_device_num: Callback for vendor-specific device_number allocation
+ * @put_device_num: Callback for vendor-specific device_number release
  * @new_peripheral_assigned: Callback to handle enumeration of new peripheral.
  */
 struct sdw_master_ops {
@@ -873,7 +875,11 @@ struct sdw_master_ops {
 	int (*pre_bank_switch)(struct sdw_bus *bus);
 	int (*post_bank_switch)(struct sdw_bus *bus);
 	u32 (*read_ping_status)(struct sdw_bus *bus);
-	void (*new_peripheral_assigned)(struct sdw_bus *bus, int dev_num);
+	int (*get_device_num)(struct sdw_bus *bus, struct sdw_slave *slave);
+	void (*put_device_num)(struct sdw_bus *bus, struct sdw_slave *slave);
+	void (*new_peripheral_assigned)(struct sdw_bus *bus,
+					struct sdw_slave *slave,
+					int dev_num);
 };
 
 /**
@@ -908,9 +914,6 @@ struct sdw_master_ops {
  * meaningful if multi_link is set. If set to 1, hardware-based
  * synchronization will be used even if a stream only uses a single
  * SoundWire segment.
- * @dev_num_ida_min: if set, defines the minimum values for the IDA
- * used to allocate system-unique device numbers. This value needs to be
- * identical across all SoundWire bus in the system.
  */
 struct sdw_bus {
 	struct device *dev;
@@ -939,7 +942,6 @@ struct sdw_bus {
 	u32 bank_switch_timeout;
 	bool multi_link;
 	int hw_sync_min_links;
-	int dev_num_ida_min;
 };
 
 int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,

include/linux/soundwire/sdw_intel.h

@@ -428,4 +428,11 @@ struct sdw_intel_hw_ops {
 extern const struct sdw_intel_hw_ops sdw_intel_cnl_hw_ops;
 extern const struct sdw_intel_hw_ops sdw_intel_lnl_hw_ops;
 
+/*
+ * IDA min selected to allow for 5 unconstrained devices per link,
+ * and 6 system-unique Device Numbers for wake-capable devices.
+ */
+
+#define SDW_INTEL_DEV_NUM_IDA_MIN           6
+
 #endif