Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 515 insertions, 0 deletions

diff --git a/sound/soc/sof/imx/imx8ulp.c b/sound/soc/sof/imx/imx8ulp.c
new file mode 100644
index 000000000..4a562c985
--- /dev/null
+++ b/sound/soc/sof/imx/imx8ulp.c
@@ -0,0 +1,515 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright 2021-2022 NXP
+//
+// Author: Peng Zhang <peng.zhang_8@nxp.com>
+//
+// Hardware interface for audio DSP on i.MX8ULP
+
+#include <linux/arm-smccc.h>
+#include <linux/clk.h>
+#include <linux/firmware.h>
+#include <linux/firmware/imx/dsp.h>
+#include <linux/firmware/imx/ipc.h>
+#include <linux/firmware/imx/svc/misc.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
+
+#include <sound/sof.h>
+#include <sound/sof/xtensa.h>
+
+#include "../ops.h"
+#include "../sof-of-dev.h"
+#include "imx-common.h"
+
+#define FSL_SIP_HIFI_XRDC	0xc200000e
+
+/* SIM Domain register */
+#define SYSCTRL0		0x8
+#define EXECUTE_BIT		BIT(13)
+#define RESET_BIT		BIT(16)
+#define HIFI4_CLK_BIT		BIT(17)
+#define PB_CLK_BIT		BIT(18)
+#define PLAT_CLK_BIT		BIT(19)
+#define DEBUG_LOGIC_BIT		BIT(25)
+
+#define MBOX_OFFSET		0x800000
+#define MBOX_SIZE		0x1000
+
+static struct clk_bulk_data imx8ulp_dsp_clks[] = {
+	{ .id = "core" },
+	{ .id = "ipg" },
+	{ .id = "ocram" },
+	{ .id = "mu" },
+};
+
+struct imx8ulp_priv {
+	struct device *dev;
+	struct snd_sof_dev *sdev;
+
+	/* DSP IPC handler */
+	struct imx_dsp_ipc *dsp_ipc;
+	struct platform_device *ipc_dev;
+
+	struct regmap *regmap;
+	struct imx_clocks *clks;
+};
+
+static void imx8ulp_sim_lpav_start(struct imx8ulp_priv *priv)
+{
+	/* Controls the HiFi4 DSP Reset: 1 in reset, 0 out of reset */
+	regmap_update_bits(priv->regmap, SYSCTRL0, RESET_BIT, 0);
+
+	/* Reset HiFi4 DSP Debug logic: 1 debug reset, 0  out of reset*/
+	regmap_update_bits(priv->regmap, SYSCTRL0, DEBUG_LOGIC_BIT, 0);
+
+	/* Stall HIFI4 DSP Execution: 1 stall, 0 run */
+	regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, 0);
+}
+
+static int imx8ulp_get_mailbox_offset(struct snd_sof_dev *sdev)
+{
+	return MBOX_OFFSET;
+}
+
+static int imx8ulp_get_window_offset(struct snd_sof_dev *sdev, u32 id)
+{
+	return MBOX_OFFSET;
+}
+
+static void imx8ulp_dsp_handle_reply(struct imx_dsp_ipc *ipc)
+{
+	struct imx8ulp_priv *priv = imx_dsp_get_data(ipc);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->sdev->ipc_lock, flags);
+
+	snd_sof_ipc_process_reply(priv->sdev, 0);
+
+	spin_unlock_irqrestore(&priv->sdev->ipc_lock, flags);
+}
+
+static void imx8ulp_dsp_handle_request(struct imx_dsp_ipc *ipc)
+{
+	struct imx8ulp_priv *priv = imx_dsp_get_data(ipc);
+	u32 p; /* panic code */
+
+	/* Read the message from the debug box. */
+	sof_mailbox_read(priv->sdev, priv->sdev->debug_box.offset + 4, &p, sizeof(p));
+
+	/* Check to see if the message is a panic code (0x0dead***) */
+	if ((p & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC)
+		snd_sof_dsp_panic(priv->sdev, p, true);
+	else
+		snd_sof_ipc_msgs_rx(priv->sdev);
+}
+
+static struct imx_dsp_ops dsp_ops = {
+	.handle_reply		= imx8ulp_dsp_handle_reply,
+	.handle_request		= imx8ulp_dsp_handle_request,
+};
+
+static int imx8ulp_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
+{
+	struct imx8ulp_priv *priv = sdev->pdata->hw_pdata;
+
+	sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
+			  msg->msg_size);
+	imx_dsp_ring_doorbell(priv->dsp_ipc, 0);
+
+	return 0;
+}
+
+static int imx8ulp_run(struct snd_sof_dev *sdev)
+{
+	struct imx8ulp_priv *priv = sdev->pdata->hw_pdata;
+
+	imx8ulp_sim_lpav_start(priv);
+
+	return 0;
+}
+
+static int imx8ulp_reset(struct snd_sof_dev *sdev)
+{
+	struct imx8ulp_priv *priv = sdev->pdata->hw_pdata;
+	struct arm_smccc_res smc_resource;
+
+	/* HiFi4 Platform Clock Enable: 1 enabled, 0 disabled */
+	regmap_update_bits(priv->regmap, SYSCTRL0, PLAT_CLK_BIT, PLAT_CLK_BIT);
+
+	/* HiFi4 PBCLK clock enable: 1 enabled, 0 disabled */
+	regmap_update_bits(priv->regmap, SYSCTRL0, PB_CLK_BIT, PB_CLK_BIT);
+
+	/* HiFi4 Clock Enable: 1 enabled, 0 disabled */
+	regmap_update_bits(priv->regmap, SYSCTRL0, HIFI4_CLK_BIT, HIFI4_CLK_BIT);
+
+	regmap_update_bits(priv->regmap, SYSCTRL0, RESET_BIT, RESET_BIT);
+	usleep_range(1, 2);
+
+	/* Stall HIFI4 DSP Execution: 1 stall, 0 not stall */
+	regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, EXECUTE_BIT);
+	usleep_range(1, 2);
+
+	arm_smccc_smc(FSL_SIP_HIFI_XRDC, 0, 0, 0, 0, 0, 0, 0, &smc_resource);
+
+	return 0;
+}
+
+static int imx8ulp_probe(struct snd_sof_dev *sdev)
+{
+	struct platform_device *pdev =
+		container_of(sdev->dev, struct platform_device, dev);
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *res_node;
+	struct resource *mmio;
+	struct imx8ulp_priv *priv;
+	struct resource res;
+	u32 base, size;
+	int ret = 0;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->clks = devm_kzalloc(&pdev->dev, sizeof(*priv->clks), GFP_KERNEL);
+	if (!priv->clks)
+		return -ENOMEM;
+
+	sdev->num_cores = 1;
+	sdev->pdata->hw_pdata = priv;
+	priv->dev = sdev->dev;
+	priv->sdev = sdev;
+
+	/* System integration module(SIM) control dsp configuration */
+	priv->regmap = syscon_regmap_lookup_by_phandle(np, "fsl,dsp-ctrl");
+	if (IS_ERR(priv->regmap))
+		return PTR_ERR(priv->regmap);
+
+	priv->ipc_dev = platform_device_register_data(sdev->dev, "imx-dsp",
+						      PLATFORM_DEVID_NONE,
+						      pdev, sizeof(*pdev));
+	if (IS_ERR(priv->ipc_dev))
+		return PTR_ERR(priv->ipc_dev);
+
+	priv->dsp_ipc = dev_get_drvdata(&priv->ipc_dev->dev);
+	if (!priv->dsp_ipc) {
+		/* DSP IPC driver not probed yet, try later */
+		ret = -EPROBE_DEFER;
+		dev_err(sdev->dev, "Failed to get drvdata\n");
+		goto exit_pdev_unregister;
+	}
+
+	imx_dsp_set_data(priv->dsp_ipc, priv);
+	priv->dsp_ipc->ops = &dsp_ops;
+
+	/* DSP base */
+	mmio = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (mmio) {
+		base = mmio->start;
+		size = resource_size(mmio);
+	} else {
+		dev_err(sdev->dev, "error: failed to get DSP base at idx 0\n");
+		ret = -EINVAL;
+		goto exit_pdev_unregister;
+	}
+
+	sdev->bar[SOF_FW_BLK_TYPE_IRAM] = devm_ioremap(sdev->dev, base, size);
+	if (!sdev->bar[SOF_FW_BLK_TYPE_IRAM]) {
+		dev_err(sdev->dev, "failed to ioremap base 0x%x size 0x%x\n",
+			base, size);
+		ret = -ENODEV;
+		goto exit_pdev_unregister;
+	}
+	sdev->mmio_bar = SOF_FW_BLK_TYPE_IRAM;
+
+	res_node = of_parse_phandle(np, "memory-reserved", 0);
+	if (!res_node) {
+		dev_err(&pdev->dev, "failed to get memory region node\n");
+		ret = -ENODEV;
+		goto exit_pdev_unregister;
+	}
+
+	ret = of_address_to_resource(res_node, 0, &res);
+	of_node_put(res_node);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to get reserved region address\n");
+		goto exit_pdev_unregister;
+	}
+
+	sdev->bar[SOF_FW_BLK_TYPE_SRAM] = devm_ioremap_wc(sdev->dev, res.start,
+							  resource_size(&res));
+	if (!sdev->bar[SOF_FW_BLK_TYPE_SRAM]) {
+		dev_err(sdev->dev, "failed to ioremap mem 0x%x size 0x%x\n",
+			base, size);
+		ret = -ENOMEM;
+		goto exit_pdev_unregister;
+	}
+	sdev->mailbox_bar = SOF_FW_BLK_TYPE_SRAM;
+
+	/* set default mailbox offset for FW ready message */
+	sdev->dsp_box.offset = MBOX_OFFSET;
+
+	ret = of_reserved_mem_device_init(sdev->dev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init reserved memory region %d\n", ret);
+		goto exit_pdev_unregister;
+	}
+
+	priv->clks->dsp_clks = imx8ulp_dsp_clks;
+	priv->clks->num_dsp_clks = ARRAY_SIZE(imx8ulp_dsp_clks);
+
+	ret = imx8_parse_clocks(sdev, priv->clks);
+	if (ret < 0)
+		goto exit_pdev_unregister;
+
+	ret = imx8_enable_clocks(sdev, priv->clks);
+	if (ret < 0)
+		goto exit_pdev_unregister;
+
+	return 0;
+
+exit_pdev_unregister:
+	platform_device_unregister(priv->ipc_dev);
+
+	return ret;
+}
+
+static int imx8ulp_remove(struct snd_sof_dev *sdev)
+{
+	struct imx8ulp_priv *priv = sdev->pdata->hw_pdata;
+
+	imx8_disable_clocks(sdev, priv->clks);
+	platform_device_unregister(priv->ipc_dev);
+
+	return 0;
+}
+
+/* on i.MX8 there is 1 to 1 match between type and BAR idx */
+static int imx8ulp_get_bar_index(struct snd_sof_dev *sdev, u32 type)
+{
+	return type;
+}
+
+static int imx8ulp_suspend(struct snd_sof_dev *sdev)
+{
+	int i;
+	struct imx8ulp_priv *priv = (struct imx8ulp_priv *)sdev->pdata->hw_pdata;
+
+	/*Stall DSP,  release in .run() */
+	regmap_update_bits(priv->regmap, SYSCTRL0, EXECUTE_BIT, EXECUTE_BIT);
+
+	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
+		imx_dsp_free_channel(priv->dsp_ipc, i);
+
+	imx8_disable_clocks(sdev, priv->clks);
+
+	return 0;
+}
+
+static int imx8ulp_resume(struct snd_sof_dev *sdev)
+{
+	struct imx8ulp_priv *priv = (struct imx8ulp_priv *)sdev->pdata->hw_pdata;
+	int i;
+
+	imx8_enable_clocks(sdev, priv->clks);
+
+	for (i = 0; i < DSP_MU_CHAN_NUM; i++)
+		imx_dsp_request_channel(priv->dsp_ipc, i);
+
+	return 0;
+}
+
+static int imx8ulp_dsp_runtime_resume(struct snd_sof_dev *sdev)
+{
+	const struct sof_dsp_power_state target_dsp_state = {
+		.state = SOF_DSP_PM_D0,
+		.substate = 0,
+	};
+
+	imx8ulp_resume(sdev);
+
+	return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
+}
+
+static int imx8ulp_dsp_runtime_suspend(struct snd_sof_dev *sdev)
+{
+	const struct sof_dsp_power_state target_dsp_state = {
+		.state = SOF_DSP_PM_D3,
+		.substate = 0,
+	};
+
+	imx8ulp_suspend(sdev);
+
+	return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
+}
+
+static int imx8ulp_dsp_suspend(struct snd_sof_dev *sdev, unsigned int target_state)
+{
+	const struct sof_dsp_power_state target_dsp_state = {
+		.state = target_state,
+		.substate = 0,
+	};
+
+	if (!pm_runtime_suspended(sdev->dev))
+		imx8ulp_suspend(sdev);
+
+	return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
+}
+
+static int imx8ulp_dsp_resume(struct snd_sof_dev *sdev)
+{
+	const struct sof_dsp_power_state target_dsp_state = {
+		.state = SOF_DSP_PM_D0,
+		.substate = 0,
+	};
+
+	imx8ulp_resume(sdev);
+
+	if (pm_runtime_suspended(sdev->dev)) {
+		pm_runtime_disable(sdev->dev);
+		pm_runtime_set_active(sdev->dev);
+		pm_runtime_mark_last_busy(sdev->dev);
+		pm_runtime_enable(sdev->dev);
+		pm_runtime_idle(sdev->dev);
+	}
+
+	return snd_sof_dsp_set_power_state(sdev, &target_dsp_state);
+}
+
+static struct snd_soc_dai_driver imx8ulp_dai[] = {
+	{
+		.name = "sai5",
+		.playback = {
+			.channels_min = 1,
+			.channels_max = 32,
+		},
+		.capture = {
+			.channels_min = 1,
+			.channels_max = 32,
+		},
+	},
+	{
+		.name = "sai6",
+		.playback = {
+			.channels_min = 1,
+			.channels_max = 32,
+		},
+		.capture = {
+			.channels_min = 1,
+			.channels_max = 32,
+		},
+	},
+};
+
+static int imx8ulp_dsp_set_power_state(struct snd_sof_dev *sdev,
+				       const struct sof_dsp_power_state *target_state)
+{
+	sdev->dsp_power_state = *target_state;
+
+	return 0;
+}
+
+/* i.MX8 ops */
+static struct snd_sof_dsp_ops sof_imx8ulp_ops = {
+	/* probe and remove */
+	.probe		= imx8ulp_probe,
+	.remove		= imx8ulp_remove,
+	/* DSP core boot */
+	.run		= imx8ulp_run,
+	.reset		= imx8ulp_reset,
+
+	/* Block IO */
+	.block_read	= sof_block_read,
+	.block_write	= sof_block_write,
+
+	/* Module IO */
+	.read64		= sof_io_read64,
+
+	/* Mailbox IO */
+	.mailbox_read	= sof_mailbox_read,
+	.mailbox_write	= sof_mailbox_write,
+
+	/* ipc */
+	.send_msg	= imx8ulp_send_msg,
+	.get_mailbox_offset	= imx8ulp_get_mailbox_offset,
+	.get_window_offset	= imx8ulp_get_window_offset,
+
+	.ipc_msg_data	= sof_ipc_msg_data,
+	.set_stream_data_offset = sof_set_stream_data_offset,
+
+	/* stream callbacks */
+	.pcm_open	= sof_stream_pcm_open,
+	.pcm_close	= sof_stream_pcm_close,
+
+	/* module loading */
+	.get_bar_index	= imx8ulp_get_bar_index,
+	/* firmware loading */
+	.load_firmware	= snd_sof_load_firmware_memcpy,
+
+	/* Debug information */
+	.dbg_dump	= imx8_dump,
+
+	/* Firmware ops */
+	.dsp_arch_ops	= &sof_xtensa_arch_ops,
+
+	/* DAI drivers */
+	.drv		= imx8ulp_dai,
+	.num_drv	= ARRAY_SIZE(imx8ulp_dai),
+
+	/* ALSA HW info flags */
+	.hw_info	= SNDRV_PCM_INFO_MMAP |
+			SNDRV_PCM_INFO_MMAP_VALID |
+			SNDRV_PCM_INFO_INTERLEAVED |
+			SNDRV_PCM_INFO_PAUSE |
+			SNDRV_PCM_INFO_NO_PERIOD_WAKEUP,
+
+	/* PM */
+	.runtime_suspend	= imx8ulp_dsp_runtime_suspend,
+	.runtime_resume		= imx8ulp_dsp_runtime_resume,
+
+	.suspend	= imx8ulp_dsp_suspend,
+	.resume		= imx8ulp_dsp_resume,
+
+	.set_power_state	= imx8ulp_dsp_set_power_state,
+};
+
+static struct sof_dev_desc sof_of_imx8ulp_desc = {
+	.ipc_supported_mask     = BIT(SOF_IPC),
+	.ipc_default            = SOF_IPC,
+	.default_fw_path = {
+		[SOF_IPC] = "imx/sof",
+	},
+	.default_tplg_path = {
+		[SOF_IPC] = "imx/sof-tplg",
+	},
+	.default_fw_filename = {
+		[SOF_IPC] = "sof-imx8ulp.ri",
+	},
+	.nocodec_tplg_filename = "sof-imx8ulp-nocodec.tplg",
+	.ops = &sof_imx8ulp_ops,
+};
+
+static const struct of_device_id sof_of_imx8ulp_ids[] = {
+	{ .compatible = "fsl,imx8ulp-dsp", .data = &sof_of_imx8ulp_desc},
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sof_of_imx8ulp_ids);
+
+/* DT driver definition */
+static struct platform_driver snd_sof_of_imx8ulp_driver = {
+	.probe = sof_of_probe,
+	.remove = sof_of_remove,
+	.driver = {
+		.name = "sof-audio-of-imx8ulp",
+		.pm = &sof_of_pm,
+		.of_match_table = sof_of_imx8ulp_ids,
+	},
+};
+module_platform_driver(snd_sof_of_imx8ulp_driver);
+
+MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);
+MODULE_LICENSE("Dual BSD/GPL");