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, 703 insertions, 0 deletions

diff --git a/sound/soc/intel/boards/skl_nau88l25_max98357a.c b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
new file mode 100644
index 000000000..e13a5a4d8
--- /dev/null
+++ b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
@@ -0,0 +1,703 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel Skylake I2S Machine Driver with MAXIM98357A
+ * and NAU88L25
+ *
+ * Copyright (C) 2015, Intel Corporation. All rights reserved.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-acpi.h>
+#include "../../codecs/nau8825.h"
+#include "../../codecs/hdac_hdmi.h"
+
+#define SKL_NUVOTON_CODEC_DAI	"nau8825-hifi"
+#define SKL_MAXIM_CODEC_DAI "HiFi"
+#define DMIC_CH(p)     p->list[p->count-1]
+
+static struct snd_soc_jack skylake_headset;
+static struct snd_soc_card skylake_audio_card;
+static const struct snd_pcm_hw_constraint_list *dmic_constraints;
+static struct snd_soc_jack skylake_hdmi[3];
+
+struct skl_hdmi_pcm {
+	struct list_head head;
+	struct snd_soc_dai *codec_dai;
+	int device;
+};
+
+struct skl_nau8825_private {
+	struct list_head hdmi_pcm_list;
+};
+
+enum {
+	SKL_DPCM_AUDIO_PB = 0,
+	SKL_DPCM_AUDIO_CP,
+	SKL_DPCM_AUDIO_REF_CP,
+	SKL_DPCM_AUDIO_DMIC_CP,
+	SKL_DPCM_AUDIO_HDMI1_PB,
+	SKL_DPCM_AUDIO_HDMI2_PB,
+	SKL_DPCM_AUDIO_HDMI3_PB,
+};
+
+static int platform_clock_control(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *k, int  event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct snd_soc_dai *codec_dai;
+	int ret;
+
+	codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);
+	if (!codec_dai) {
+		dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
+		return -EIO;
+	}
+
+	if (SND_SOC_DAPM_EVENT_ON(event)) {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	} else {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	}
+
+	return ret;
+}
+
+static const struct snd_kcontrol_new skylake_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Spk"),
+};
+
+static const struct snd_soc_dapm_widget skylake_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Spk", NULL),
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+	SND_SOC_DAPM_SPK("DP1", NULL),
+	SND_SOC_DAPM_SPK("DP2", NULL),
+	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+};
+
+static struct snd_soc_jack_pin jack_pins[] = {
+	{
+		.pin    = "Headphone Jack",
+		.mask   = SND_JACK_HEADPHONE,
+	},
+	{
+		.pin    = "Headset Mic",
+		.mask   = SND_JACK_MICROPHONE,
+	},
+};
+
+static const struct snd_soc_dapm_route skylake_map[] = {
+	/* HP jack connectors - unknown if we have jack detection */
+	{ "Headphone Jack", NULL, "HPOL" },
+	{ "Headphone Jack", NULL, "HPOR" },
+
+	/* speaker */
+	{ "Spk", NULL, "Speaker" },
+
+	/* other jacks */
+	{ "MIC", NULL, "Headset Mic" },
+	{ "DMic", NULL, "SoC DMIC" },
+
+	/* CODEC BE connections */
+	{ "HiFi Playback", NULL, "ssp0 Tx" },
+	{ "ssp0 Tx", NULL, "codec0_out" },
+
+	{ "Playback", NULL, "ssp1 Tx" },
+	{ "ssp1 Tx", NULL, "codec1_out" },
+
+	{ "codec0_in", NULL, "ssp1 Rx" },
+	{ "ssp1 Rx", NULL, "Capture" },
+
+	/* DMIC */
+	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
+	{ "DMIC01 Rx", NULL, "DMIC AIF" },
+
+	{ "hifi3", NULL, "iDisp3 Tx"},
+	{ "iDisp3 Tx", NULL, "iDisp3_out"},
+	{ "hifi2", NULL, "iDisp2 Tx"},
+	{ "iDisp2 Tx", NULL, "iDisp2_out"},
+	{ "hifi1", NULL, "iDisp1 Tx"},
+	{ "iDisp1 Tx", NULL, "iDisp1_out"},
+
+	{ "Headphone Jack", NULL, "Platform Clock" },
+	{ "Headset Mic", NULL, "Platform Clock" },
+};
+
+static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *chan = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+	/* The ADSP will convert the FE rate to 48k, stereo */
+	rate->min = rate->max = 48000;
+	chan->min = chan->max = 2;
+
+	/* set SSP0 to 24 bit */
+	snd_mask_none(fmt);
+	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
+
+	return 0;
+}
+
+static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+
+	/*
+	 * Headset buttons map to the google Reference headset.
+	 * These can be configured by userspace.
+	 */
+	ret = snd_soc_card_jack_new_pins(&skylake_audio_card, "Headset Jack",
+					 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+					 SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
+					 jack_pins,
+					 ARRAY_SIZE(jack_pins));
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	nau8825_enable_jack_detect(component, &skylake_headset);
+
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
+
+	return ret;
+}
+
+static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
+	struct skl_hdmi_pcm *pcm;
+
+	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
+	if (!pcm)
+		return -ENOMEM;
+
+	pcm->device = SKL_DPCM_AUDIO_HDMI1_PB;
+	pcm->codec_dai = dai;
+
+	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+	return 0;
+}
+
+static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
+	struct skl_hdmi_pcm *pcm;
+
+	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
+	if (!pcm)
+		return -ENOMEM;
+
+	pcm->device = SKL_DPCM_AUDIO_HDMI2_PB;
+	pcm->codec_dai = dai;
+
+	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+	return 0;
+}
+
+static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
+	struct skl_hdmi_pcm *pcm;
+
+	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
+	if (!pcm)
+		return -ENOMEM;
+
+	pcm->device = SKL_DPCM_AUDIO_HDMI3_PB;
+	pcm->codec_dai = dai;
+
+	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
+
+	return 0;
+}
+
+static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = asoc_rtd_to_cpu(rtd, 0)->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
+static const unsigned int rates[] = {
+	48000,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_rates = {
+	.count = ARRAY_SIZE(rates),
+	.list  = rates,
+	.mask = 0,
+};
+
+static const unsigned int channels[] = {
+	2,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_channels = {
+	.count = ARRAY_SIZE(channels),
+	.list = channels,
+	.mask = 0,
+};
+
+static int skl_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	/*
+	 * On this platform for PCM device we support,
+	 * 48Khz
+	 * stereo
+	 * 16 bit audio
+	 */
+
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
+	return 0;
+}
+
+static const struct snd_soc_ops skylake_nau8825_fe_ops = {
+	.startup = skl_fe_startup,
+};
+
+static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai,
+			NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+
+	if (ret < 0)
+		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
+
+	return ret;
+}
+
+static const struct snd_soc_ops skylake_nau8825_ops = {
+	.hw_params = skylake_nau8825_hw_params,
+};
+
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *chan = hw_param_interval(params,
+				SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2)
+		chan->min = chan->max = 2;
+	else
+		chan->min = chan->max = 4;
+
+	return 0;
+}
+
+static const unsigned int channels_dmic[] = {
+	2, 4,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+	.count = ARRAY_SIZE(channels_dmic),
+	.list = channels_dmic,
+	.mask = 0,
+};
+
+static const unsigned int dmic_2ch[] = {
+	2,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch = {
+	.count = ARRAY_SIZE(dmic_2ch),
+	.list = dmic_2ch,
+	.mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_max = DMIC_CH(dmic_constraints);
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+			dmic_constraints);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static const struct snd_soc_ops skylake_dmic_ops = {
+	.startup = skylake_dmic_startup,
+};
+
+static const unsigned int rates_16000[] = {
+	16000,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_16000 = {
+	.count = ARRAY_SIZE(rates_16000),
+	.list  = rates_16000,
+};
+
+static const unsigned int ch_mono[] = {
+	1,
+};
+
+static const struct snd_pcm_hw_constraint_list constraints_refcap = {
+	.count = ARRAY_SIZE(ch_mono),
+	.list  = ch_mono,
+};
+
+static int skylake_refcap_startup(struct snd_pcm_substream *substream)
+{
+	substream->runtime->hw.channels_max = 1;
+	snd_pcm_hw_constraint_list(substream->runtime, 0,
+					SNDRV_PCM_HW_PARAM_CHANNELS,
+					&constraints_refcap);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE,
+				&constraints_16000);
+}
+
+static const struct snd_soc_ops skylake_refcap_ops = {
+	.startup = skylake_refcap_startup,
+};
+
+SND_SOC_DAILINK_DEF(dummy,
+	DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+SND_SOC_DAILINK_DEF(system,
+	DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
+
+SND_SOC_DAILINK_DEF(reference,
+	DAILINK_COMP_ARRAY(COMP_CPU("Reference Pin")));
+
+SND_SOC_DAILINK_DEF(dmic,
+	DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
+
+SND_SOC_DAILINK_DEF(hdmi1,
+	DAILINK_COMP_ARRAY(COMP_CPU("HDMI1 Pin")));
+
+SND_SOC_DAILINK_DEF(hdmi2,
+	DAILINK_COMP_ARRAY(COMP_CPU("HDMI2 Pin")));
+
+SND_SOC_DAILINK_DEF(hdmi3,
+	DAILINK_COMP_ARRAY(COMP_CPU("HDMI3 Pin")));
+
+SND_SOC_DAILINK_DEF(ssp0_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
+SND_SOC_DAILINK_DEF(ssp0_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", SKL_MAXIM_CODEC_DAI)));
+
+SND_SOC_DAILINK_DEF(ssp1_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("SSP1 Pin")));
+SND_SOC_DAILINK_DEF(ssp1_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10508825:00",
+				      SKL_NUVOTON_CODEC_DAI)));
+
+SND_SOC_DAILINK_DEF(dmic_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin")));
+SND_SOC_DAILINK_DEF(dmic_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
+
+SND_SOC_DAILINK_DEF(idisp1_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
+SND_SOC_DAILINK_DEF(idisp1_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi1")));
+
+SND_SOC_DAILINK_DEF(idisp2_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin")));
+SND_SOC_DAILINK_DEF(idisp2_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi2")));
+
+SND_SOC_DAILINK_DEF(idisp3_pin,
+	DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin")));
+SND_SOC_DAILINK_DEF(idisp3_codec,
+	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi3")));
+
+SND_SOC_DAILINK_DEF(platform,
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:1f.3")));
+
+/* skylake digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link skylake_dais[] = {
+	/* Front End DAI links */
+	[SKL_DPCM_AUDIO_PB] = {
+		.name = "Skl Audio Port",
+		.stream_name = "Audio",
+		.dynamic = 1,
+		.nonatomic = 1,
+		.init = skylake_nau8825_fe_init,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+		.ops = &skylake_nau8825_fe_ops,
+		SND_SOC_DAILINK_REG(system, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_CP] = {
+		.name = "Skl Audio Capture Port",
+		.stream_name = "Audio Record",
+		.dynamic = 1,
+		.nonatomic = 1,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_capture = 1,
+		.ops = &skylake_nau8825_fe_ops,
+		SND_SOC_DAILINK_REG(system, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_REF_CP] = {
+		.name = "Skl Audio Reference cap",
+		.stream_name = "Wake on Voice",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_refcap_ops,
+		SND_SOC_DAILINK_REG(reference, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_DMIC_CP] = {
+		.name = "Skl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_dmic_ops,
+		SND_SOC_DAILINK_REG(dmic, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_HDMI1_PB] = {
+		.name = "Skl HDMI Port1",
+		.stream_name = "Hdmi1",
+		.dpcm_playback = 1,
+		.init = NULL,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.nonatomic = 1,
+		.dynamic = 1,
+		SND_SOC_DAILINK_REG(hdmi1, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_HDMI2_PB] = {
+		.name = "Skl HDMI Port2",
+		.stream_name = "Hdmi2",
+		.dpcm_playback = 1,
+		.init = NULL,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.nonatomic = 1,
+		.dynamic = 1,
+		SND_SOC_DAILINK_REG(hdmi2, dummy, platform),
+	},
+	[SKL_DPCM_AUDIO_HDMI3_PB] = {
+		.name = "Skl HDMI Port3",
+		.stream_name = "Hdmi3",
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+		.init = NULL,
+		.nonatomic = 1,
+		.dynamic = 1,
+		SND_SOC_DAILINK_REG(hdmi3, dummy, platform),
+	},
+
+	/* Back End DAI links */
+	{
+		/* SSP0 - Codec */
+		.name = "SSP0-Codec",
+		.id = 0,
+		.no_pcm = 1,
+		.dai_fmt = SND_SOC_DAIFMT_I2S |
+			SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBC_CFC,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.dpcm_playback = 1,
+		SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform),
+	},
+	{
+		/* SSP1 - Codec */
+		.name = "SSP1-Codec",
+		.id = 1,
+		.no_pcm = 1,
+		.init = skylake_nau8825_codec_init,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBC_CFC,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.ops = &skylake_nau8825_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		SND_SOC_DAILINK_REG(ssp1_pin, ssp1_codec, platform),
+	},
+	{
+		.name = "dmic01",
+		.id = 2,
+		.be_hw_params_fixup = skylake_dmic_fixup,
+		.ignore_suspend = 1,
+		.dpcm_capture = 1,
+		.no_pcm = 1,
+		SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
+	},
+	{
+		.name = "iDisp1",
+		.id = 3,
+		.dpcm_playback = 1,
+		.init = skylake_hdmi1_init,
+		.no_pcm = 1,
+		SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform),
+	},
+	{
+		.name = "iDisp2",
+		.id = 4,
+		.init = skylake_hdmi2_init,
+		.dpcm_playback = 1,
+		.no_pcm = 1,
+		SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform),
+	},
+	{
+		.name = "iDisp3",
+		.id = 5,
+		.init = skylake_hdmi3_init,
+		.dpcm_playback = 1,
+		.no_pcm = 1,
+		SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform),
+	},
+};
+
+#define NAME_SIZE	32
+static int skylake_card_late_probe(struct snd_soc_card *card)
+{
+	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(card);
+	struct skl_hdmi_pcm *pcm;
+	struct snd_soc_component *component = NULL;
+	int err, i = 0;
+	char jack_name[NAME_SIZE];
+
+	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
+		component = pcm->codec_dai->component;
+		snprintf(jack_name, sizeof(jack_name),
+			"HDMI/DP, pcm=%d Jack", pcm->device);
+		err = snd_soc_card_jack_new(card, jack_name,
+					SND_JACK_AVOUT,
+					&skylake_hdmi[i]);
+
+		if (err)
+			return err;
+
+		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
+						&skylake_hdmi[i]);
+		if (err < 0)
+			return err;
+
+		i++;
+	}
+
+	if (!component)
+		return -EINVAL;
+
+	return hdac_hdmi_jack_port_init(component, &card->dapm);
+}
+
+/* skylake audio machine driver for SPT + NAU88L25 */
+static struct snd_soc_card skylake_audio_card = {
+	.name = "sklnau8825max",
+	.owner = THIS_MODULE,
+	.dai_link = skylake_dais,
+	.num_links = ARRAY_SIZE(skylake_dais),
+	.controls = skylake_controls,
+	.num_controls = ARRAY_SIZE(skylake_controls),
+	.dapm_widgets = skylake_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
+	.dapm_routes = skylake_map,
+	.num_dapm_routes = ARRAY_SIZE(skylake_map),
+	.fully_routed = true,
+	.late_probe = skylake_card_late_probe,
+};
+
+static int skylake_audio_probe(struct platform_device *pdev)
+{
+	struct skl_nau8825_private *ctx;
+	struct snd_soc_acpi_mach *mach;
+
+	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
+
+	skylake_audio_card.dev = &pdev->dev;
+	snd_soc_card_set_drvdata(&skylake_audio_card, ctx);
+
+	mach = pdev->dev.platform_data;
+	if (mach)
+		dmic_constraints = mach->mach_params.dmic_num == 2 ?
+			&constraints_dmic_2ch : &constraints_dmic_channels;
+
+	return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
+}
+
+static const struct platform_device_id skl_board_ids[] = {
+	{ .name = "skl_n88l25_m98357a" },
+	{ .name = "kbl_n88l25_m98357a" },
+	{ }
+};
+MODULE_DEVICE_TABLE(platform, skl_board_ids);
+
+static struct platform_driver skylake_audio = {
+	.probe = skylake_audio_probe,
+	.driver = {
+		.name = "skl_n88l25_m98357a",
+		.pm = &snd_soc_pm_ops,
+	},
+	.id_table = skl_board_ids,
+};
+
+module_platform_driver(skylake_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
+MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
+MODULE_LICENSE("GPL v2");