Merge tag 'soundwire-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

Pull soundwire updates from Vinod Koul:

 - Stream handling and slave alert handling

 - Qualcomm Soundwire v2.0.0 controller support

 - Intel ACE2.x initial support and code reorganization

* tag 'soundwire-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire: (55 commits)
  soundwire: stream: Make master_list ordered to prevent deadlocks
  soundwire: bus: Prevent lockdep asserts when stream has multiple buses
  soundwire: qcom: fix storing port config out-of-bounds
  soundwire: intel_ace2x: fix SND_SOC_SOF_HDA_MLINK dependency
  soundwire: debugfs: Add missing SCP registers
  soundwire: stream: Remove unnecessary gotos
  soundwire: stream: Invert logic on runtime alloc flags
  soundwire: stream: Remove unneeded checks for NULL bus
  soundwire: bandwidth allocation: Remove pointless variable
  soundwire: cadence: revisit parity injection
  soundwire: intel/cadence: update hardware reset sequence
  soundwire: intel_bus_common: enable interrupts last
  soundwire: intel_bus_common: update error log
  soundwire: amd: Improve error message in remove callback
  soundwire: debugfs: fix unbalanced pm_runtime_put()
  soundwire: qcom: fix unbalanced pm_runtime_put()
  soundwire: qcom: set clk stop need reset flag at runtime
  soundwire: qcom: add software workaround for bus clash interrupt assertion
  soundwire: qcom: wait for fifo to be empty before suspend
  soundwire: qcom: drop unused struct qcom_swrm_ctrl members
  ...

17 files changed, 1136 insertions, 384 deletions

diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig
index fa71c9a36df7..4d8f3b7024ae 100644
--- a/drivers/soundwire/Kconfig
+++ b/drivers/soundwire/Kconfig
@@ -37,6 +37,7 @@ config SOUNDWIRE_INTEL
 	select SOUNDWIRE_GENERIC_ALLOCATION
 	select AUXILIARY_BUS
 	depends on ACPI && SND_SOC
+	depends on SND_SOC_SOF_HDA_MLINK || !SND_SOC_SOF_HDA_MLINK
 	help
 	  SoundWire Intel Master driver.
 	  If you have an Intel platform which has a SoundWire Master then
diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile
index 925566ff4272..c3d3ab3262d3 100644
--- a/drivers/soundwire/Makefile
+++ b/drivers/soundwire/Makefile
@@ -24,7 +24,8 @@ soundwire-cadence-y := cadence_master.o
 obj-$(CONFIG_SOUNDWIRE_CADENCE) += soundwire-cadence.o
 
 #Intel driver
-soundwire-intel-y :=	intel.o intel_auxdevice.o intel_init.o dmi-quirks.o \
+soundwire-intel-y :=	intel.o intel_ace2x.o intel_ace2x_debugfs.o \
+			intel_auxdevice.o intel_init.o dmi-quirks.o \
 			intel_bus_common.o
 obj-$(CONFIG_SOUNDWIRE_INTEL) += soundwire-intel.o
 
diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index 9fb7f91ca182..08aeb7ed00e1 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -972,15 +972,18 @@ static int amd_sdw_manager_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int amd_sdw_manager_remove(struct platform_device *pdev)
+static void amd_sdw_manager_remove(struct platform_device *pdev)
 {
 	struct amd_sdw_manager *amd_manager = dev_get_drvdata(&pdev->dev);
+	int ret;
 
 	pm_runtime_disable(&pdev->dev);
 	cancel_work_sync(&amd_manager->probe_work);
 	amd_disable_sdw_interrupts(amd_manager);
 	sdw_bus_master_delete(&amd_manager->bus);
-	return amd_disable_sdw_manager(amd_manager);
+	ret = amd_disable_sdw_manager(amd_manager);
+	if (ret)
+		dev_err(&pdev->dev, "Failed to disable device (%pe)\n", ERR_PTR(ret));
 }
 
 static int amd_sdw_clock_stop(struct amd_sdw_manager *amd_manager)
@@ -1194,7 +1197,7 @@ static const struct dev_pm_ops amd_pm = {
 
 static struct platform_driver amd_sdw_driver = {
 	.probe	= &amd_sdw_manager_probe,
-	.remove = &amd_sdw_manager_remove,
+	.remove_new = &amd_sdw_manager_remove,
 	.driver = {
 		.name	= "amd_sdw_manager",
 		.pm = &amd_pm,
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 1ea6a64f8c4a..dba920ec88f6 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -69,8 +69,17 @@ int sdw_bus_master_add(struct sdw_bus *bus, struct device *parent,
 		return -EINVAL;
 	}
 
-	mutex_init(&bus->msg_lock);
-	mutex_init(&bus->bus_lock);
+	/*
+	 * Give each bus_lock and msg_lock a unique key so that lockdep won't
+	 * trigger a deadlock warning when the locks of several buses are
+	 * grabbed during configuration of a multi-bus stream.
+	 */
+	lockdep_register_key(&bus->msg_lock_key);
+	__mutex_init(&bus->msg_lock, "msg_lock", &bus->msg_lock_key);
+
+	lockdep_register_key(&bus->bus_lock_key);
+	__mutex_init(&bus->bus_lock, "bus_lock", &bus->bus_lock_key);
+
 	INIT_LIST_HEAD(&bus->slaves);
 	INIT_LIST_HEAD(&bus->m_rt_list);
 
@@ -181,6 +190,8 @@ void sdw_bus_master_delete(struct sdw_bus *bus)
 	sdw_master_device_del(bus);
 
 	sdw_bus_debugfs_exit(bus);
+	lockdep_unregister_key(&bus->bus_lock_key);
+	lockdep_unregister_key(&bus->msg_lock_key);
 	ida_free(&sdw_bus_ida, bus->id);
 }
 EXPORT_SYMBOL(sdw_bus_master_delete);
@@ -769,6 +780,9 @@ static int sdw_assign_device_num(struct sdw_slave *slave)
 	/* After xfer of msg, restore dev_num */
 	slave->dev_num = slave->dev_num_sticky;
 
+	if (bus->ops && bus->ops->new_peripheral_assigned)
+		bus->ops->new_peripheral_assigned(bus, dev_num);
+
 	return 0;
 }
 
@@ -1588,7 +1602,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 	unsigned long port;
 	bool slave_notify;
 	u8 sdca_cascade = 0;
-	u8 buf, buf2[2], _buf, _buf2[2];
+	u8 buf, buf2[2];
 	bool parity_check;
 	bool parity_quirk;
 
@@ -1745,9 +1759,9 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 				"SDW_SCP_INT1 recheck read failed:%d\n", ret);
 			goto io_err;
 		}
-		_buf = ret;
+		buf = ret;
 
-		ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, _buf2);
+		ret = sdw_nread_no_pm(slave, SDW_SCP_INTSTAT2, 2, buf2);
 		if (ret < 0) {
 			dev_err(&slave->dev,
 				"SDW_SCP_INT2/3 recheck read failed:%d\n", ret);
@@ -1765,12 +1779,8 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
 		}
 
 		/*
-		 * Make sure no interrupts are pending, but filter to limit loop
-		 * to interrupts identified in the first status read
+		 * Make sure no interrupts are pending
 		 */
-		buf &= _buf;
-		buf2[0] &= _buf2[0];
-		buf2[1] &= _buf2[1];
 		stat = buf || buf2[0] || buf2[1] || sdca_cascade;
 
 		/*
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index 39502bc75712..0efc1c3bee5f 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -283,6 +283,29 @@ static int cdns_config_update(struct sdw_cdns *cdns)
 	return ret;
 }
 
+/**
+ * sdw_cdns_config_update() - Update configurations
+ * @cdns: Cadence instance
+ */
+void sdw_cdns_config_update(struct sdw_cdns *cdns)
+{
+	/* commit changes */
+	cdns_writel(cdns, CDNS_MCP_CONFIG_UPDATE, CDNS_MCP_CONFIG_UPDATE_BIT);
+}
+EXPORT_SYMBOL(sdw_cdns_config_update);
+
+/**
+ * sdw_cdns_config_update_set_wait() - wait until configuration update bit is self-cleared
+ * @cdns: Cadence instance
+ */
+int sdw_cdns_config_update_set_wait(struct sdw_cdns *cdns)
+{
+	/* the hardware recommendation is to wait at least 300us */
+	return cdns_set_wait(cdns, CDNS_MCP_CONFIG_UPDATE,
+			     CDNS_MCP_CONFIG_UPDATE_BIT, 0);
+}
+EXPORT_SYMBOL(sdw_cdns_config_update_set_wait);
+
 /*
  * debugfs
  */
@@ -433,9 +456,9 @@ static int cdns_parity_error_injection(void *data, u64 value)
 			CDNS_IP_MCP_CMDCTRL_INSERT_PARITY_ERR);
 
 	/* commit changes */
-	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,
-		     CDNS_MCP_CONFIG_UPDATE_BIT,
-		     CDNS_MCP_CONFIG_UPDATE_BIT);
+	ret = cdns_clear_bit(cdns, CDNS_MCP_CONFIG_UPDATE, CDNS_MCP_CONFIG_UPDATE_BIT);
+	if (ret < 0)
+		goto unlock;
 
 	/* do a broadcast dummy read to avoid bus clashes */
 	ret = sdw_bread_no_pm_unlocked(&cdns->bus, 0xf, SDW_SCP_DEVID_0);
@@ -447,16 +470,17 @@ static int cdns_parity_error_injection(void *data, u64 value)
 			0);
 
 	/* commit changes */
-	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,
-		     CDNS_MCP_CONFIG_UPDATE_BIT,
-		     CDNS_MCP_CONFIG_UPDATE_BIT);
-
-	/* Continue bus operation with parity error injection disabled */
-	mutex_unlock(&bus->bus_lock);
+	ret = cdns_clear_bit(cdns, CDNS_MCP_CONFIG_UPDATE, CDNS_MCP_CONFIG_UPDATE_BIT);
+	if (ret < 0)
+		goto unlock;
 
 	/* Userspace changed the hardware state behind the kernel's back */
 	add_taint(TAINT_USER, LOCKDEP_STILL_OK);
 
+unlock:
+	/* Continue bus operation with parity error injection disabled */
+	mutex_unlock(&bus->bus_lock);
+
 	/*
 	 * allow Master device to enter pm_runtime suspend. This may
 	 * also result in Slave devices suspending.
@@ -1116,13 +1140,7 @@ int sdw_cdns_exit_reset(struct sdw_cdns *cdns)
 		     CDNS_MCP_CONTROL_HW_RST);
 
 	/* commit changes */
-	cdns_updatel(cdns, CDNS_MCP_CONFIG_UPDATE,
-		     CDNS_MCP_CONFIG_UPDATE_BIT,
-		     CDNS_MCP_CONFIG_UPDATE_BIT);
-
-	/* don't wait here */
-	return 0;
-
+	return cdns_config_update(cdns);
 }
 EXPORT_SYMBOL(sdw_cdns_exit_reset);
 
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
index 27c56274217f..bc84435e420f 100644
--- a/drivers/soundwire/cadence_master.h
+++ b/drivers/soundwire/cadence_master.h
@@ -14,6 +14,8 @@
  */
 #define CDNS_MCP_IP_MAX_CMD_LEN		32
 
+#define SDW_CADENCE_MCP_IP_OFFSET	0x4000
+
 /**
  * struct sdw_cdns_pdi: PDI (Physical Data Interface) instance
  *
@@ -197,4 +199,7 @@ int cdns_set_sdw_stream(struct snd_soc_dai *dai,
 void sdw_cdns_check_self_clearing_bits(struct sdw_cdns *cdns, const char *string,
 				       bool initial_delay, int reset_iterations);
 
+void sdw_cdns_config_update(struct sdw_cdns *cdns);
+int sdw_cdns_config_update_set_wait(struct sdw_cdns *cdns);
+
 #endif /* __SDW_CADENCE_H */
diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
index dea782e0edc4..d1553cb77187 100644
--- a/drivers/soundwire/debugfs.c
+++ b/drivers/soundwire/debugfs.c
@@ -56,8 +56,9 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
 	if (!buf)
 		return -ENOMEM;
 
-	ret = pm_runtime_resume_and_get(&slave->dev);
+	ret = pm_runtime_get_sync(&slave->dev);
 	if (ret < 0 && ret != -EACCES) {
+		pm_runtime_put_noidle(&slave->dev);
 		kfree(buf);
 		return ret;
 	}
@@ -85,10 +86,17 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
 
 	/* SCP registers */
 	ret += scnprintf(buf + ret, RD_BUF - ret, "\nSCP\n");
-	for (i = SDW_SCP_INT1; i <= SDW_SCP_BANKDELAY; i++)
+	for (i = SDW_SCP_INT1; i <= SDW_SCP_BUS_CLOCK_BASE; i++)
 		ret += sdw_sprintf(slave, buf, ret, i);
 	for (i = SDW_SCP_DEVID_0; i <= SDW_SCP_DEVID_5; i++)
 		ret += sdw_sprintf(slave, buf, ret, i);
+	for (i = SDW_SCP_FRAMECTRL_B0; i <= SDW_SCP_BUSCLOCK_SCALE_B0; i++)
+		ret += sdw_sprintf(slave, buf, ret, i);
+	for (i = SDW_SCP_FRAMECTRL_B1; i <= SDW_SCP_BUSCLOCK_SCALE_B1; i++)
+		ret += sdw_sprintf(slave, buf, ret, i);
+	for (i = SDW_SCP_PHY_OUT_CTRL_0; i <= SDW_SCP_PHY_OUT_CTRL_7; i++)
+		ret += sdw_sprintf(slave, buf, ret, i);
+
 
 	/*
 	 * SCP Bank 0/1 registers are read-only and cannot be
diff --git a/drivers/soundwire/generic_bandwidth_allocation.c b/drivers/soundwire/generic_bandwidth_allocation.c
index 325c475b6a66..31162f2b5638 100644
--- a/drivers/soundwire/generic_bandwidth_allocation.c
+++ b/drivers/soundwire/generic_bandwidth_allocation.c
@@ -139,20 +139,16 @@ static void _sdw_compute_port_params(struct sdw_bus *bus,
 {
 	struct sdw_master_runtime *m_rt;
 	int hstop = bus->params.col - 1;
-	int block_offset, port_bo, i;
+	int port_bo, i;
 
 	/* Run loop for all groups to compute transport parameters */
 	for (i = 0; i < count; i++) {
 		port_bo = 1;
-		block_offset = 1;
 
 		list_for_each_entry(m_rt, &bus->m_rt_list, bus_node) {
-			sdw_compute_master_ports(m_rt, &params[i],
-						 port_bo, hstop);
+			sdw_compute_master_ports(m_rt, &params[i], port_bo, hstop);
 
-			block_offset += m_rt->ch_count *
-					m_rt->stream->params.bps;
-			port_bo = block_offset;
+			port_bo += m_rt->ch_count * m_rt->stream->params.bps;
 		}
 
 		hstop = hstop - params[i].hwidth;
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 238acf5c97a9..26d8485427dd 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -260,7 +260,7 @@ static void intel_shim_init(struct sdw_intel *sdw)
 {
 	void __iomem *shim = sdw->link_res->shim;
 	unsigned int link_id = sdw->instance;
-	u16 ioctl = 0, act = 0;
+	u16 ioctl = 0, act;
 
 	/* Initialize Shim */
 	ioctl |= SDW_SHIM_IOCTL_BKE;
@@ -281,6 +281,7 @@ static void intel_shim_init(struct sdw_intel *sdw)
 
 	intel_shim_glue_to_master_ip(sdw);
 
+	act = intel_readw(shim, SDW_SHIM_CTMCTL(link_id));
 	u16p_replace_bits(&act, 0x1, SDW_SHIM_CTMCTL_DOAIS);
 	act |= SDW_SHIM_CTMCTL_DACTQE;
 	act |= SDW_SHIM_CTMCTL_DODS;
@@ -643,7 +644,7 @@ intel_pdi_alh_configure(struct sdw_intel *sdw, struct sdw_cdns_pdi *pdi)
 }
 
 static int intel_params_stream(struct sdw_intel *sdw,
-			       int stream,
+			       struct snd_pcm_substream *substream,
 			       struct snd_soc_dai *dai,
 			       struct snd_pcm_hw_params *hw_params,
 			       int link_id, int alh_stream_id)
@@ -651,7 +652,7 @@ static int intel_params_stream(struct sdw_intel *sdw,
 	struct sdw_intel_link_res *res = sdw->link_res;
 	struct sdw_intel_stream_params_data params_data;
 
-	params_data.stream = stream; /* direction */
+	params_data.substream = substream;
 	params_data.dai = dai;
 	params_data.hw_params = hw_params;
 	params_data.link_id = link_id;
@@ -663,25 +664,6 @@ static int intel_params_stream(struct sdw_intel *sdw,
 	return -EIO;
 }
 
-static int intel_free_stream(struct sdw_intel *sdw,
-			     int stream,
-			     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.stream = stream; /* direction */
-	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 routines
  */
@@ -727,7 +709,7 @@ static int intel_hw_params(struct snd_pcm_substream *substream,
 	dai_runtime->pdi = pdi;
 
 	/* Inform DSP about PDI stream number */
-	ret = intel_params_stream(sdw, substream->stream, dai, params,
+	ret = intel_params_stream(sdw, substream, dai, params,
 				  sdw->instance,
 				  pdi->intel_alh_id);
 	if (ret)
@@ -804,7 +786,7 @@ static int intel_prepare(struct snd_pcm_substream *substream,
 		sdw_cdns_config_stream(cdns, ch, dir, dai_runtime->pdi);
 
 		/* Inform DSP about PDI stream number */
-		ret = intel_params_stream(sdw, substream->stream, dai,
+		ret = intel_params_stream(sdw, substream, dai,
 					  hw_params,
 					  sdw->instance,
 					  dai_runtime->pdi->intel_alh_id);
@@ -817,7 +799,6 @@ 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;
 
@@ -838,12 +819,6 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 		return ret;
 	}
 
-	ret = intel_free_stream(sdw, substream->stream, 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;
@@ -871,19 +846,9 @@ static void *intel_get_sdw_stream(struct snd_soc_dai *dai,
 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 send required IPC to audio
-	 * firmware. The .free_stream callback will still be called
-	 * by intel_free_stream() in the TRIGGER_SUSPEND case.
-	 */
-	if (res->ops && res->ops->trigger)
-		res->ops->trigger(dai, cmd, substream->stream);
-
 	dai_runtime = cdns->dai_runtime_array[dai->id];
 	if (!dai_runtime) {
 		dev_err(dai->dev, "failed to get dai runtime in %s\n",
@@ -903,7 +868,6 @@ static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct sn
 
 		dai_runtime->suspended = true;
 
-		ret = intel_free_stream(sdw, substream->stream, dai, sdw->instance);
 		break;
 
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
@@ -949,9 +913,7 @@ static int intel_component_dais_suspend(struct snd_soc_component *component)
 	 */
 	for_each_component_dais(component, 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];
 
@@ -961,13 +923,8 @@ static int intel_component_dais_suspend(struct snd_soc_component *component)
 		if (dai_runtime->suspended)
 			continue;
 
-		if (dai_runtime->paused) {
+		if (dai_runtime->paused)
 			dai_runtime->suspended = true;
-
-			ret = intel_free_stream(sdw, dai_runtime->direction, dai, sdw->instance);
-			if (ret < 0)
-				return ret;
-		}
 	}
 
 	return 0;
diff --git a/drivers/soundwire/intel.h b/drivers/soundwire/intel.h
index 09d479f2c77b..511932c55216 100644
--- a/drivers/soundwire/intel.h
+++ b/drivers/soundwire/intel.h
@@ -4,13 +4,17 @@
 #ifndef __SDW_INTEL_LOCAL_H
 #define __SDW_INTEL_LOCAL_H
 
+struct hdac_bus;
+
 /**
  * struct sdw_intel_link_res - Soundwire Intel link resource structure,
  * typically populated by the controller driver.
  * @hw_ops: platform-specific ops
  * @mmio_base: mmio base of SoundWire registers
  * @registers: Link IO registers base
+ * @ip_offset: offset for MCP_IP registers
  * @shim: Audio shim pointer
+ * @shim_vs: Audio vendor-specific shim pointer
  * @alh: ALH (Audio Link Hub) pointer
  * @irq: Interrupt line
  * @ops: Shim callback ops
@@ -21,13 +25,16 @@
  * @link_mask: global mask needed for power-up/down sequences
  * @cdns: Cadence master descriptor
  * @list: used to walk-through all masters exposed by the same controller
+ * @hbus: hdac_bus pointer, needed for power management
  */
 struct sdw_intel_link_res {
 	const struct sdw_intel_hw_ops *hw_ops;
 
 	void __iomem *mmio_base; /* not strictly needed, useful for debug */
 	void __iomem *registers;
+	u32 ip_offset;
 	void __iomem *shim;
+	void __iomem *shim_vs;
 	void __iomem *alh;
 	int irq;
 	const struct sdw_intel_ops *ops;
@@ -38,6 +45,7 @@ struct sdw_intel_link_res {
 	u32 link_mask;
 	struct sdw_cdns *cdns;
 	struct list_head list;
+	struct hdac_bus *hbus;
 };
 
 struct sdw_intel {
@@ -87,6 +95,14 @@ static inline void intel_writew(void __iomem *base, int offset, u16 value)
 					 (sdw)->link_res->hw_ops->cb)
 #define SDW_INTEL_OPS(sdw, cb)		((sdw)->link_res->hw_ops->cb)
 
+#ifdef CONFIG_DEBUG_FS
+void intel_ace2x_debugfs_init(struct sdw_intel *sdw);
+void intel_ace2x_debugfs_exit(struct sdw_intel *sdw);
+#else
+static inline void intel_ace2x_debugfs_init(struct sdw_intel *sdw) {}
+static inline void intel_ace2x_debugfs_exit(struct sdw_intel *sdw) {}
+#endif
+
 static inline void sdw_intel_debugfs_init(struct sdw_intel *sdw)
 {
 	if (SDW_INTEL_CHECK_OPS(sdw, debugfs_init))
diff --git a/drivers/soundwire/intel_ace2x.c b/drivers/soundwire/intel_ace2x.c
new file mode 100644
index 000000000000..1be0bea5f40f
--- /dev/null
+++ b/drivers/soundwire/intel_ace2x.c
@@ -0,0 +1,393 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+// Copyright(c) 2023 Intel Corporation. All rights reserved.
+
+/*
+ * Soundwire Intel ops for LunarLake
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/soundwire/sdw_registers.h>
+#include <linux/soundwire/sdw.h>
+#include <linux/soundwire/sdw_intel.h>
+#include <sound/hda-mlink.h>
+#include "cadence_master.h"
+#include "bus.h"
+#include "intel.h"
+
+/*
+ * shim vendor-specific (vs) ops
+ */
+
+static void intel_shim_vs_init(struct sdw_intel *sdw)
+{
+	void __iomem *shim_vs = sdw->link_res->shim_vs;
+	u16 act = 0;
+
+	u16p_replace_bits(&act, 0x1, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS);
+	act |= SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE;
+	act |=  SDW_SHIM2_INTEL_VS_ACTMCTL_DODS;
+	intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL, act);
+	usleep_range(10, 15);
+}
+
+static int intel_shim_check_wake(struct sdw_intel *sdw)
+{
+	void __iomem *shim_vs;
+	u16 wake_sts;
+
+	shim_vs = sdw->link_res->shim_vs;
+	wake_sts = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS);
+
+	return wake_sts & SDW_SHIM2_INTEL_VS_WAKEEN_PWS;
+}
+
+static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable)
+{
+	void __iomem *shim_vs = sdw->link_res->shim_vs;
+	u16 wake_en;
+	u16 wake_sts;
+
+	wake_en = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN);
+
+	if (wake_enable) {
+		/* Enable the wakeup */
+		wake_en |= SDW_SHIM2_INTEL_VS_WAKEEN_PWE;
+		intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN, wake_en);
+	} else {
+		/* Disable the wake up interrupt */
+		wake_en &= ~SDW_SHIM2_INTEL_VS_WAKEEN_PWE;
+		intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKEEN, wake_en);
+
+		/* Clear wake status (W1C) */
+		wake_sts = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS);
+		wake_sts |= SDW_SHIM2_INTEL_VS_WAKEEN_PWS;
+		intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_WAKESTS, wake_sts);
+	}
+}
+
+static int intel_link_power_up(struct sdw_intel *sdw)
+{
+	struct sdw_bus *bus = &sdw->cdns.bus;
+	struct sdw_master_prop *prop = &bus->prop;
+	u32 *shim_mask = sdw->link_res->shim_mask;
+	unsigned int link_id = sdw->instance;
+	u32 syncprd;
+	int ret;
+
+	mutex_lock(sdw->link_res->shim_lock);
+
+	if (!*shim_mask) {
+		/* we first need to program the SyncPRD/CPU registers */
+		dev_dbg(sdw->cdns.dev, "first link up, programming SYNCPRD\n");
+
+		if (prop->mclk_freq % 6000000)
+			syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_38_4;
+		else
+			syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_24;
+
+		ret =  hdac_bus_eml_sdw_set_syncprd_unlocked(sdw->link_res->hbus, syncprd);
+		if (ret < 0) {
+			dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_set_syncprd failed: %d\n",
+				__func__, ret);
+			goto out;
+		}
+	}
+
+	ret = hdac_bus_eml_sdw_power_up_unlocked(sdw->link_res->hbus, link_id);
+	if (ret < 0) {
+		dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_up failed: %d\n",
+			__func__, ret);
+		goto out;
+	}
+
+	if (!*shim_mask) {
+		/* SYNCPU will change once link is active */
+		ret =  hdac_bus_eml_sdw_wait_syncpu_unlocked(sdw->link_res->hbus);
+		if (ret < 0) {
+			dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_wait_syncpu failed: %d\n",
+				__func__, ret);
+			goto out;
+		}
+	}
+
+	*shim_mask |= BIT(link_id);
+
+	sdw->cdns.link_up = true;
+
+	intel_shim_vs_init(sdw);
+
+out:
+	mutex_unlock(sdw->link_res->shim_lock);
+
+	return ret;
+}
+
+static int intel_link_power_down(struct sdw_intel *sdw)
+{
+	u32 *shim_mask = sdw->link_res->shim_mask;
+	unsigned int link_id = sdw->instance;
+	int ret;
+
+	mutex_lock(sdw->link_res->shim_lock);
+
+	sdw->cdns.link_up = false;
+
+	*shim_mask &= ~BIT(link_id);
+
+	ret = hdac_bus_eml_sdw_power_down_unlocked(sdw->link_res->hbus, link_id);
+	if (ret < 0) {
+		dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_down failed: %d\n",
+			__func__, ret);
+
+		/*
+		 * we leave the sdw->cdns.link_up flag as false since we've disabled
+		 * the link at this point and cannot handle interrupts any longer.
+		 */
+	}
+
+	mutex_unlock(sdw->link_res->shim_lock);
+
+	return ret;
+}
+
+static void intel_sync_arm(struct sdw_intel *sdw)
+{
+	unsigned int link_id = sdw->instance;
+
+	mutex_lock(sdw->link_res->shim_lock);
+
+	hdac_bus_eml_sdw_sync_arm_unlocked(sdw->link_res->hbus, link_id);
+
+	mutex_unlock(sdw->link_res->shim_lock);
+}
+
+static int intel_sync_go_unlocked(struct sdw_intel *sdw)
+{
+	int ret;
+
+	ret = hdac_bus_eml_sdw_sync_go_unlocked(sdw->link_res->hbus);
+	if (ret < 0)
+		dev_err(sdw->cdns.dev, "%s: SyncGO clear failed: %d\n", __func__, ret);
+
+	return ret;
+}
+
+static int intel_sync_go(struct sdw_intel *sdw)
+{
+	int ret;
+
+	mutex_lock(sdw->link_res->shim_lock);
+
+	ret = intel_sync_go_unlocked(sdw);
+
+	mutex_unlock(sdw->link_res->shim_lock);
+
+	return ret;
+}
+
+static bool intel_check_cmdsync_unlocked(struct sdw_intel *sdw)
+{
+	return hdac_bus_eml_sdw_check_cmdsync_unlocked(sdw->link_res->hbus);
+}
+
+/*
+ * DAI operations
+ */
+static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
+};
+
+static const struct snd_soc_component_driver dai_component = {
+	.name			= "soundwire",
+};
+
+/*
+ * PDI routines
+ */
+static void intel_pdi_init(struct sdw_intel *sdw,
+			   struct sdw_cdns_stream_config *config)
+{
+	void __iomem *shim = sdw->link_res->shim;
+	int pcm_cap;
+
+	/* PCM Stream Capability */
+	pcm_cap = intel_readw(shim, SDW_SHIM2_PCMSCAP);
+
+	config->pcm_bd = FIELD_GET(SDW_SHIM2_PCMSCAP_BSS, pcm_cap);
+	config->pcm_in = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap);
+	config->pcm_out = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap);
+
+	dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n",
+		config->pcm_bd, config->pcm_in, config->pcm_out);
+}
+
+static int
+intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num)
+{
+	void __iomem *shim = sdw->link_res->shim;
+
+	/* zero based values for channel count in register */
+	return intel_readw(shim, SDW_SHIM2_PCMSYCHC(pdi_num)) + 1;
+}
+
+static void intel_pdi_get_ch_update(struct sdw_intel *sdw,
+				    struct sdw_cdns_pdi *pdi,
+				    unsigned int num_pdi,
+				    unsigned int *num_ch)
+{
+	int ch_count = 0;
+	int i;
+
+	for (i = 0; i < num_pdi; i++) {
+		pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num);
+		ch_count += pdi->ch_count;
+		pdi++;
+	}
+
+	*num_ch = ch_count;
+}
+
+static void intel_pdi_stream_ch_update(struct sdw_intel *sdw,
+				       struct sdw_cdns_streams *stream)
+{
+	intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd,
+				&stream->num_ch_bd);
+
+	intel_pdi_get_ch_update(sdw, stream->in, stream->num_in,
+				&stream->num_ch_in);
+
+	intel_pdi_get_ch_update(sdw, stream->out, stream->num_out,
+				&stream->num_ch_out);
+}
+
+static int intel_create_dai(struct sdw_cdns *cdns,
+			    struct snd_soc_dai_driver *dais,
+			    enum intel_pdi_type type,
+			    u32 num, u32 off, u32 max_ch)
+{
+	int i;
+
+	if (!num)
+		return 0;
+
+	for (i = off; i < (off + num); i++) {
+		dais[i].name = devm_kasprintf(cdns->dev, GFP_KERNEL,
+					      "SDW%d Pin%d",
+					      cdns->instance, i);
+		if (!dais[i].name)
+			return -ENOMEM;
+
+		if (type == INTEL_PDI_BD || type == INTEL_PDI_OUT) {
+			dais[i].playback.channels_min = 1;
+			dais[i].playback.channels_max = max_ch;
+		}
+
+		if (type == INTEL_PDI_BD || type == INTEL_PDI_IN) {
+			dais[i].capture.channels_min = 1;
+			dais[i].capture.channels_max = max_ch;
+		}
+
+		dais[i].ops = &intel_pcm_dai_ops;
+	}
+
+	return 0;
+}
+
+static int intel_register_dai(struct sdw_intel *sdw)
+{
+	struct sdw_cdns_dai_runtime **dai_runtime_array;
+	struct sdw_cdns_stream_config config;
+	struct sdw_cdns *cdns = &sdw->cdns;
+	struct sdw_cdns_streams *stream;
+	struct snd_soc_dai_driver *dais;
+	int num_dai;
+	int ret;
+	int off = 0;
+
+	/* Read the PDI config and initialize cadence PDI */
+	intel_pdi_init(sdw, &config);
+	ret = sdw_cdns_pdi_init(cdns, config);
+	if (ret)
+		return ret;
+
+	intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm);
+
+	/* DAIs are created based on total number of PDIs supported */
+	num_dai = cdns->pcm.num_pdi;
+
+	dai_runtime_array = devm_kcalloc(cdns->dev, num_dai,
+					 sizeof(struct sdw_cdns_dai_runtime *),
+					 GFP_KERNEL);
+	if (!dai_runtime_array)
+		return -ENOMEM;
+	cdns->dai_runtime_array = dai_runtime_array;
+
+	dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL);
+	if (!dais)
+		return -ENOMEM;
+
+	/* Create PCM DAIs */
+	stream = &cdns->pcm;
+
+	ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
+			       off, stream->num_ch_in);
+	if (ret)
+		return ret;
+
+	off += cdns->pcm.num_in;
+	ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out,
+			       off, stream->num_ch_out);
+	if (ret)
+		return ret;
+
+	off += cdns->pcm.num_out;
+	ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd,
+			       off, stream->num_ch_bd);
+	if (ret)
+		return ret;
+
+	return devm_snd_soc_register_component(cdns->dev, &dai_component,
+					       dais, num_dai);
+}
+
+static void intel_program_sdi(struct sdw_intel *sdw, int dev_num)
+{
+	int ret;
+
+	ret = hdac_bus_eml_sdw_set_lsdiid(sdw->link_res->hbus, sdw->instance, dev_num);