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, 356 insertions, 0 deletions

diff --git a/sound/soc/codecs/jz4740.c b/sound/soc/codecs/jz4740.c
new file mode 100644
index 000000000..7c25acf6f
--- /dev/null
+++ b/sound/soc/codecs/jz4740.c
@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// JZ4740 CODEC driver
+//
+// Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/regmap.h>
+
+#include <linux/delay.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>
+
+#define JZ4740_REG_CODEC_1 0x0
+#define JZ4740_REG_CODEC_2 0x4
+
+#define JZ4740_CODEC_1_LINE_ENABLE BIT(29)
+#define JZ4740_CODEC_1_MIC_ENABLE BIT(28)
+#define JZ4740_CODEC_1_SW1_ENABLE BIT(27)
+#define JZ4740_CODEC_1_ADC_ENABLE BIT(26)
+#define JZ4740_CODEC_1_SW2_ENABLE BIT(25)
+#define JZ4740_CODEC_1_DAC_ENABLE BIT(24)
+#define JZ4740_CODEC_1_VREF_DISABLE BIT(20)
+#define JZ4740_CODEC_1_VREF_AMP_DISABLE BIT(19)
+#define JZ4740_CODEC_1_VREF_PULLDOWN BIT(18)
+#define JZ4740_CODEC_1_VREF_LOW_CURRENT BIT(17)
+#define JZ4740_CODEC_1_VREF_HIGH_CURRENT BIT(16)
+#define JZ4740_CODEC_1_HEADPHONE_DISABLE BIT(14)
+#define JZ4740_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
+#define JZ4740_CODEC_1_HEADPHONE_CHARGE BIT(12)
+#define JZ4740_CODEC_1_HEADPHONE_PULLDOWN (BIT(11) | BIT(10))
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M BIT(9)
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN BIT(8)
+#define JZ4740_CODEC_1_SUSPEND BIT(1)
+#define JZ4740_CODEC_1_RESET BIT(0)
+
+#define JZ4740_CODEC_1_LINE_ENABLE_OFFSET 29
+#define JZ4740_CODEC_1_MIC_ENABLE_OFFSET 28
+#define JZ4740_CODEC_1_SW1_ENABLE_OFFSET 27
+#define JZ4740_CODEC_1_ADC_ENABLE_OFFSET 26
+#define JZ4740_CODEC_1_SW2_ENABLE_OFFSET 25
+#define JZ4740_CODEC_1_DAC_ENABLE_OFFSET 24
+#define JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
+#define JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET 8
+
+#define JZ4740_CODEC_2_INPUT_VOLUME_MASK		0x1f0000
+#define JZ4740_CODEC_2_SAMPLE_RATE_MASK			0x000f00
+#define JZ4740_CODEC_2_MIC_BOOST_GAIN_MASK		0x000030
+#define JZ4740_CODEC_2_HEADPHONE_VOLUME_MASK	0x000003
+
+#define JZ4740_CODEC_2_INPUT_VOLUME_OFFSET		16
+#define JZ4740_CODEC_2_SAMPLE_RATE_OFFSET		 8
+#define JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET	 4
+#define JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET	 0
+
+static const struct reg_default jz4740_codec_reg_defaults[] = {
+	{ JZ4740_REG_CODEC_1, 0x021b2302 },
+	{ JZ4740_REG_CODEC_2, 0x00170803 },
+};
+
+struct jz4740_codec {
+	struct regmap *regmap;
+};
+
+static const DECLARE_TLV_DB_RANGE(jz4740_mic_tlv,
+	0, 2, TLV_DB_SCALE_ITEM(0, 600, 0),
+	3, 3, TLV_DB_SCALE_ITEM(2000, 0, 0)
+);
+
+static const DECLARE_TLV_DB_SCALE(jz4740_out_tlv, 0, 200, 0);
+static const DECLARE_TLV_DB_SCALE(jz4740_in_tlv, -3450, 150, 0);
+
+static const struct snd_kcontrol_new jz4740_codec_controls[] = {
+	SOC_SINGLE_TLV("Master Playback Volume", JZ4740_REG_CODEC_2,
+			JZ4740_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0,
+			jz4740_out_tlv),
+	SOC_SINGLE_TLV("Master Capture Volume", JZ4740_REG_CODEC_2,
+			JZ4740_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0,
+			jz4740_in_tlv),
+	SOC_SINGLE("Master Playback Switch", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
+	SOC_SINGLE_TLV("Mic Capture Volume", JZ4740_REG_CODEC_2,
+			JZ4740_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0,
+			jz4740_mic_tlv),
+};
+
+static const struct snd_kcontrol_new jz4740_codec_output_controls[] = {
+	SOC_DAPM_SINGLE("Bypass Switch", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
+	SOC_DAPM_SINGLE("DAC Switch", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
+};
+
+static const struct snd_kcontrol_new jz4740_codec_input_controls[] = {
+	SOC_DAPM_SINGLE("Line Capture Switch", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
+	SOC_DAPM_SINGLE("Mic Capture Switch", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
+};
+
+static const struct snd_soc_dapm_widget jz4740_codec_dapm_widgets[] = {
+	SND_SOC_DAPM_ADC("ADC", "Capture", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_ADC_ENABLE_OFFSET, 0),
+	SND_SOC_DAPM_DAC("DAC", "Playback", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_DAC_ENABLE_OFFSET, 0),
+
+	SND_SOC_DAPM_MIXER("Output Mixer", JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_HEADPHONE_POWERDOWN_OFFSET, 1,
+			jz4740_codec_output_controls,
+			ARRAY_SIZE(jz4740_codec_output_controls)),
+
+	SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
+			jz4740_codec_input_controls,
+			ARRAY_SIZE(jz4740_codec_input_controls)),
+	SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
+
+	SND_SOC_DAPM_OUTPUT("LOUT"),
+	SND_SOC_DAPM_OUTPUT("ROUT"),
+
+	SND_SOC_DAPM_INPUT("MIC"),
+	SND_SOC_DAPM_INPUT("LIN"),
+	SND_SOC_DAPM_INPUT("RIN"),
+};
+
+static const struct snd_soc_dapm_route jz4740_codec_dapm_routes[] = {
+	{"Line Input", NULL, "LIN"},
+	{"Line Input", NULL, "RIN"},
+
+	{"Input Mixer", "Line Capture Switch", "Line Input"},
+	{"Input Mixer", "Mic Capture Switch", "MIC"},
+
+	{"ADC", NULL, "Input Mixer"},
+
+	{"Output Mixer", "Bypass Switch", "Input Mixer"},
+	{"Output Mixer", "DAC Switch", "DAC"},
+
+	{"LOUT", NULL, "Output Mixer"},
+	{"ROUT", NULL, "Output Mixer"},
+};
+
+static int jz4740_codec_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(dai->component);
+	uint32_t val;
+
+	switch (params_rate(params)) {
+	case 8000:
+		val = 0;
+		break;
+	case 11025:
+		val = 1;
+		break;
+	case 12000:
+		val = 2;
+		break;
+	case 16000:
+		val = 3;
+		break;
+	case 22050:
+		val = 4;
+		break;
+	case 24000:
+		val = 5;
+		break;
+	case 32000:
+		val = 6;
+		break;
+	case 44100:
+		val = 7;
+		break;
+	case 48000:
+		val = 8;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	val <<= JZ4740_CODEC_2_SAMPLE_RATE_OFFSET;
+
+	regmap_update_bits(jz4740_codec->regmap, JZ4740_REG_CODEC_2,
+				JZ4740_CODEC_2_SAMPLE_RATE_MASK, val);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops jz4740_codec_dai_ops = {
+	.hw_params = jz4740_codec_hw_params,
+};
+
+static struct snd_soc_dai_driver jz4740_codec_dai = {
+	.name = "jz4740-hifi",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8,
+	},
+	.ops = &jz4740_codec_dai_ops,
+	.symmetric_rate = 1,
+};
+
+static void jz4740_codec_wakeup(struct regmap *regmap)
+{
+	regmap_set_bits(regmap, JZ4740_REG_CODEC_1, JZ4740_CODEC_1_RESET);
+	udelay(2);
+
+	regmap_clear_bits(regmap, JZ4740_REG_CODEC_1,
+			  JZ4740_CODEC_1_SUSPEND | JZ4740_CODEC_1_RESET);
+
+	regcache_sync(regmap);
+}
+
+static int jz4740_codec_set_bias_level(struct snd_soc_component *component,
+	enum snd_soc_bias_level level)
+{
+	struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(component);
+	struct regmap *regmap = jz4740_codec->regmap;
+	unsigned int mask;
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+	case SND_SOC_BIAS_PREPARE:
+		mask = JZ4740_CODEC_1_VREF_DISABLE |
+				JZ4740_CODEC_1_VREF_AMP_DISABLE |
+				JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
+
+		regmap_clear_bits(regmap, JZ4740_REG_CODEC_1, mask);
+		break;
+	case SND_SOC_BIAS_STANDBY:
+		/* The only way to clear the suspend flag is to reset the codec */
+		if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
+			jz4740_codec_wakeup(regmap);
+
+		mask = JZ4740_CODEC_1_VREF_DISABLE |
+			JZ4740_CODEC_1_VREF_AMP_DISABLE |
+			JZ4740_CODEC_1_HEADPHONE_POWERDOWN_M;
+
+		regmap_set_bits(regmap, JZ4740_REG_CODEC_1, mask);
+		break;
+	case SND_SOC_BIAS_OFF:
+		mask = JZ4740_CODEC_1_SUSPEND;
+		regmap_set_bits(regmap, JZ4740_REG_CODEC_1, mask);
+		regcache_mark_dirty(regmap);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int jz4740_codec_dev_probe(struct snd_soc_component *component)
+{
+	struct jz4740_codec *jz4740_codec = snd_soc_component_get_drvdata(component);
+
+	regmap_update_bits(jz4740_codec->regmap, JZ4740_REG_CODEC_1,
+			JZ4740_CODEC_1_SW2_ENABLE, JZ4740_CODEC_1_SW2_ENABLE);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver soc_codec_dev_jz4740_codec = {
+	.probe			= jz4740_codec_dev_probe,
+	.set_bias_level		= jz4740_codec_set_bias_level,
+	.controls		= jz4740_codec_controls,
+	.num_controls		= ARRAY_SIZE(jz4740_codec_controls),
+	.dapm_widgets		= jz4740_codec_dapm_widgets,
+	.num_dapm_widgets	= ARRAY_SIZE(jz4740_codec_dapm_widgets),
+	.dapm_routes		= jz4740_codec_dapm_routes,
+	.num_dapm_routes	= ARRAY_SIZE(jz4740_codec_dapm_routes),
+	.suspend_bias_off	= 1,
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static const struct regmap_config jz4740_codec_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = JZ4740_REG_CODEC_2,
+
+	.reg_defaults = jz4740_codec_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(jz4740_codec_reg_defaults),
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static int jz4740_codec_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct jz4740_codec *jz4740_codec;
+	void __iomem *base;
+
+	jz4740_codec = devm_kzalloc(&pdev->dev, sizeof(*jz4740_codec),
+				    GFP_KERNEL);
+	if (!jz4740_codec)
+		return -ENOMEM;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	jz4740_codec->regmap = devm_regmap_init_mmio(&pdev->dev, base,
+					    &jz4740_codec_regmap_config);
+	if (IS_ERR(jz4740_codec->regmap))
+		return PTR_ERR(jz4740_codec->regmap);
+
+	platform_set_drvdata(pdev, jz4740_codec);
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&soc_codec_dev_jz4740_codec, &jz4740_codec_dai, 1);
+	if (ret)
+		dev_err(&pdev->dev, "Failed to register codec\n");
+
+	return ret;
+}
+
+static const struct of_device_id jz4740_codec_of_matches[] = {
+	{ .compatible = "ingenic,jz4740-codec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, jz4740_codec_of_matches);
+
+static struct platform_driver jz4740_codec_driver = {
+	.probe = jz4740_codec_probe,
+	.driver = {
+		.name = "jz4740-codec",
+		.of_match_table = jz4740_codec_of_matches,
+	},
+};
+
+module_platform_driver(jz4740_codec_driver);
+
+MODULE_DESCRIPTION("JZ4740 SoC internal codec driver");
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:jz4740-codec");