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, 409 insertions, 0 deletions

diff --git a/sound/soc/codecs/ad1836.c b/sound/soc/codecs/ad1836.c
new file mode 100644
index 000000000..2c64df96b
--- /dev/null
+++ b/sound/soc/codecs/ad1836.c
@@ -0,0 +1,409 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+ /*
+ * Audio Codec driver supporting:
+ *  AD1835A, AD1836, AD1837A, AD1838A, AD1839A
+ *
+ * Copyright 2009-2011 Analog Devices Inc.
+ */
+
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <linux/spi/spi.h>
+#include <linux/regmap.h>
+
+#include "ad1836.h"
+
+enum ad1836_type {
+	AD1835,
+	AD1836,
+	AD1838,
+};
+
+/* codec private data */
+struct ad1836_priv {
+	enum ad1836_type type;
+	struct regmap *regmap;
+};
+
+/*
+ * AD1836 volume/mute/de-emphasis etc. controls
+ */
+static const char *ad1836_deemp[] = {"None", "44.1kHz", "32kHz", "48kHz"};
+
+static SOC_ENUM_SINGLE_DECL(ad1836_deemp_enum,
+			    AD1836_DAC_CTRL1, 8, ad1836_deemp);
+
+#define AD1836_DAC_VOLUME(x) \
+	SOC_DOUBLE_R("DAC" #x " Playback Volume", AD1836_DAC_L_VOL(x), \
+			AD1836_DAC_R_VOL(x), 0, 0x3FF, 0)
+
+#define AD1836_DAC_SWITCH(x) \
+	SOC_DOUBLE("DAC" #x " Playback Switch", AD1836_DAC_CTRL2, \
+			AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1)
+
+#define AD1836_ADC_SWITCH(x) \
+	SOC_DOUBLE("ADC" #x " Capture Switch", AD1836_ADC_CTRL2, \
+		AD1836_MUTE_LEFT(x), AD1836_MUTE_RIGHT(x), 1, 1)
+
+static const struct snd_kcontrol_new ad183x_dac_controls[] = {
+	AD1836_DAC_VOLUME(1),
+	AD1836_DAC_SWITCH(1),
+	AD1836_DAC_VOLUME(2),
+	AD1836_DAC_SWITCH(2),
+	AD1836_DAC_VOLUME(3),
+	AD1836_DAC_SWITCH(3),
+	AD1836_DAC_VOLUME(4),
+	AD1836_DAC_SWITCH(4),
+};
+
+static const struct snd_soc_dapm_widget ad183x_dac_dapm_widgets[] = {
+	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
+};
+
+static const struct snd_soc_dapm_route ad183x_dac_routes[] = {
+	{ "DAC1OUT", NULL, "DAC" },
+	{ "DAC2OUT", NULL, "DAC" },
+	{ "DAC3OUT", NULL, "DAC" },
+	{ "DAC4OUT", NULL, "DAC" },
+};
+
+static const struct snd_kcontrol_new ad183x_adc_controls[] = {
+	AD1836_ADC_SWITCH(1),
+	AD1836_ADC_SWITCH(2),
+	AD1836_ADC_SWITCH(3),
+};
+
+static const struct snd_soc_dapm_widget ad183x_adc_dapm_widgets[] = {
+	SND_SOC_DAPM_INPUT("ADC1IN"),
+	SND_SOC_DAPM_INPUT("ADC2IN"),
+};
+
+static const struct snd_soc_dapm_route ad183x_adc_routes[] = {
+	{ "ADC", NULL, "ADC1IN" },
+	{ "ADC", NULL, "ADC2IN" },
+};
+
+static const struct snd_kcontrol_new ad183x_controls[] = {
+	/* ADC high-pass filter */
+	SOC_SINGLE("ADC High Pass Filter Switch", AD1836_ADC_CTRL1,
+			AD1836_ADC_HIGHPASS_FILTER, 1, 0),
+
+	/* DAC de-emphasis */
+	SOC_ENUM("Playback Deemphasis", ad1836_deemp_enum),
+};
+
+static const struct snd_soc_dapm_widget ad183x_dapm_widgets[] = {
+	SND_SOC_DAPM_DAC("DAC", "Playback", AD1836_DAC_CTRL1,
+				AD1836_DAC_POWERDOWN, 1),
+	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1836_ADC_CTRL1,
+				AD1836_ADC_POWERDOWN, 1, NULL, 0),
+};
+
+static const struct snd_soc_dapm_route ad183x_dapm_routes[] = {
+	{ "DAC", NULL, "ADC_PWR" },
+	{ "ADC", NULL, "ADC_PWR" },
+};
+
+static const DECLARE_TLV_DB_SCALE(ad1836_in_tlv, 0, 300, 0);
+
+static const struct snd_kcontrol_new ad1836_controls[] = {
+	SOC_DOUBLE_TLV("ADC2 Capture Volume", AD1836_ADC_CTRL1, 3, 0, 4, 0,
+	    ad1836_in_tlv),
+};
+
+/*
+ * DAI ops entries
+ */
+
+static int ad1836_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	/* at present, we support adc aux mode to interface with
+	 * blackfin sport tdm mode
+	 */
+	case SND_SOC_DAIFMT_DSP_A:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_IB_IF:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	/* ALCLK,ABCLK are both output, AD1836 can only be provider */
+	case SND_SOC_DAIFMT_CBP_CFP:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ad1836_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params,
+		struct snd_soc_dai *dai)
+{
+	struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(dai->component);
+	int word_len = 0;
+
+	/* bit size */
+	switch (params_width(params)) {
+	case 16:
+		word_len = AD1836_WORD_LEN_16;
+		break;
+	case 20:
+		word_len = AD1836_WORD_LEN_20;
+		break;
+	case 24:
+	case 32:
+		word_len = AD1836_WORD_LEN_24;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_update_bits(ad1836->regmap, AD1836_DAC_CTRL1,
+		AD1836_DAC_WORD_LEN_MASK,
+		word_len << AD1836_DAC_WORD_LEN_OFFSET);
+
+	regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2,
+		AD1836_ADC_WORD_LEN_MASK,
+		word_len << AD1836_ADC_WORD_OFFSET);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops ad1836_dai_ops = {
+	.hw_params = ad1836_hw_params,
+	.set_fmt = ad1836_set_dai_fmt,
+};
+
+#define AD183X_DAI(_name, num_dacs, num_adcs) \
+{ \
+	.name = _name "-hifi", \
+	.playback = { \
+		.stream_name = "Playback", \
+		.channels_min = 2, \
+		.channels_max = (num_dacs) * 2, \
+		.rates = SNDRV_PCM_RATE_48000,  \
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \
+			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \
+	}, \
+	.capture = { \
+		.stream_name = "Capture", \
+		.channels_min = 2, \
+		.channels_max = (num_adcs) * 2, \
+		.rates = SNDRV_PCM_RATE_48000, \
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE | \
+			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE, \
+	}, \
+	.ops = &ad1836_dai_ops, \
+}
+
+static struct snd_soc_dai_driver ad183x_dais[] = {
+	[AD1835] = AD183X_DAI("ad1835", 4, 1),
+	[AD1836] = AD183X_DAI("ad1836", 3, 2),
+	[AD1838] = AD183X_DAI("ad1838", 3, 1),
+};
+
+#ifdef CONFIG_PM
+static int ad1836_suspend(struct snd_soc_component *component)
+{
+	struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(component);
+	/* reset clock control mode */
+	return regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2,
+		AD1836_ADC_SERFMT_MASK, 0);
+}
+
+static int ad1836_resume(struct snd_soc_component *component)
+{
+	struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(component);
+	/* restore clock control mode */
+	return regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2,
+		AD1836_ADC_SERFMT_MASK, AD1836_ADC_AUX);
+}
+#else
+#define ad1836_suspend NULL
+#define ad1836_resume  NULL
+#endif
+
+static int ad1836_probe(struct snd_soc_component *component)
+{
+	struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
+	int num_dacs, num_adcs;
+	int ret = 0;
+	int i;
+
+	num_dacs = ad183x_dais[ad1836->type].playback.channels_max / 2;
+	num_adcs = ad183x_dais[ad1836->type].capture.channels_max / 2;
+
+	/* default setting for ad1836 */
+	/* de-emphasis: 48kHz, power-on dac */
+	regmap_write(ad1836->regmap, AD1836_DAC_CTRL1, 0x300);
+	/* unmute dac channels */
+	regmap_write(ad1836->regmap, AD1836_DAC_CTRL2, 0x0);
+	/* high-pass filter enable, power-on adc */
+	regmap_write(ad1836->regmap, AD1836_ADC_CTRL1, 0x100);
+	/* unmute adc channles, adc aux mode */
+	regmap_write(ad1836->regmap, AD1836_ADC_CTRL2, 0x180);
+	/* volume */
+	for (i = 1; i <= num_dacs; ++i) {
+		regmap_write(ad1836->regmap, AD1836_DAC_L_VOL(i), 0x3FF);
+		regmap_write(ad1836->regmap, AD1836_DAC_R_VOL(i), 0x3FF);
+	}
+
+	if (ad1836->type == AD1836) {
+		/* left/right diff:PGA/MUX */
+		regmap_write(ad1836->regmap, AD1836_ADC_CTRL3, 0x3A);
+		ret = snd_soc_add_component_controls(component, ad1836_controls,
+				ARRAY_SIZE(ad1836_controls));
+		if (ret)
+			return ret;
+	} else {
+		regmap_write(ad1836->regmap, AD1836_ADC_CTRL3, 0x00);
+	}
+
+	ret = snd_soc_add_component_controls(component, ad183x_dac_controls, num_dacs * 2);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_add_component_controls(component, ad183x_adc_controls, num_adcs);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_new_controls(dapm, ad183x_dac_dapm_widgets, num_dacs);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_new_controls(dapm, ad183x_adc_dapm_widgets, num_adcs);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_add_routes(dapm, ad183x_dac_routes, num_dacs);
+	if (ret)
+		return ret;
+
+	ret = snd_soc_dapm_add_routes(dapm, ad183x_adc_routes, num_adcs);
+
+	return ret;
+}
+
+/* power down chip */
+static void ad1836_remove(struct snd_soc_component *component)
+{
+	struct ad1836_priv *ad1836 = snd_soc_component_get_drvdata(component);
+	/* reset clock control mode */
+	regmap_update_bits(ad1836->regmap, AD1836_ADC_CTRL2,
+		AD1836_ADC_SERFMT_MASK, 0);
+}
+
+static const struct snd_soc_component_driver soc_component_dev_ad1836 = {
+	.probe			= ad1836_probe,
+	.remove			= ad1836_remove,
+	.suspend		= ad1836_suspend,
+	.resume			= ad1836_resume,
+	.controls		= ad183x_controls,
+	.num_controls		= ARRAY_SIZE(ad183x_controls),
+	.dapm_widgets		= ad183x_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(ad183x_dapm_widgets),
+	.dapm_routes		= ad183x_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(ad183x_dapm_routes),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static const struct reg_default ad1836_reg_defaults[] = {
+	{ AD1836_DAC_CTRL1, 0x0000 },
+	{ AD1836_DAC_CTRL2, 0x0000 },
+	{ AD1836_DAC_L_VOL(0), 0x0000 },
+	{ AD1836_DAC_R_VOL(0), 0x0000 },
+	{ AD1836_DAC_L_VOL(1), 0x0000 },
+	{ AD1836_DAC_R_VOL(1), 0x0000 },
+	{ AD1836_DAC_L_VOL(2), 0x0000 },
+	{ AD1836_DAC_R_VOL(2), 0x0000 },
+	{ AD1836_DAC_L_VOL(3), 0x0000 },
+	{ AD1836_DAC_R_VOL(3), 0x0000 },
+	{ AD1836_ADC_CTRL1, 0x0000 },
+	{ AD1836_ADC_CTRL2, 0x0000 },
+	{ AD1836_ADC_CTRL3, 0x0000 },
+};
+
+static const struct regmap_config ad1836_regmap_config = {
+	.val_bits = 12,
+	.reg_bits = 4,
+	.read_flag_mask = 0x08,
+
+	.max_register = AD1836_ADC_CTRL3,
+	.reg_defaults = ad1836_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(ad1836_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static int ad1836_spi_probe(struct spi_device *spi)
+{
+	struct ad1836_priv *ad1836;
+	int ret;
+
+	ad1836 = devm_kzalloc(&spi->dev, sizeof(struct ad1836_priv),
+			      GFP_KERNEL);
+	if (ad1836 == NULL)
+		return -ENOMEM;
+
+	ad1836->regmap = devm_regmap_init_spi(spi, &ad1836_regmap_config);
+	if (IS_ERR(ad1836->regmap))
+		return PTR_ERR(ad1836->regmap);
+
+	ad1836->type = spi_get_device_id(spi)->driver_data;
+
+	spi_set_drvdata(spi, ad1836);
+
+	ret = devm_snd_soc_register_component(&spi->dev,
+			&soc_component_dev_ad1836, &ad183x_dais[ad1836->type], 1);
+	return ret;
+}
+
+static const struct spi_device_id ad1836_ids[] = {
+	{ "ad1835", AD1835 },
+	{ "ad1836", AD1836 },
+	{ "ad1837", AD1835 },
+	{ "ad1838", AD1838 },
+	{ "ad1839", AD1838 },
+	{ },
+};
+MODULE_DEVICE_TABLE(spi, ad1836_ids);
+
+static struct spi_driver ad1836_spi_driver = {
+	.driver = {
+		.name	= "ad1836",
+	},
+	.probe		= ad1836_spi_probe,
+	.id_table	= ad1836_ids,
+};
+
+module_spi_driver(ad1836_spi_driver);
+
+MODULE_DESCRIPTION("ASoC ad1836 driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");