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, 476 insertions, 0 deletions

diff --git a/sound/soc/codecs/sti-sas.c b/sound/soc/codecs/sti-sas.c
new file mode 100644
index 000000000..99545bcb2
--- /dev/null
+++ b/sound/soc/codecs/sti-sas.c
@@ -0,0 +1,476 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) STMicroelectronics SA 2015
+ * Authors: Arnaud Pouliquen <arnaud.pouliquen@st.com>
+ *          for STMicroelectronics.
+ */
+
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/mfd/syscon.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+/* DAC definitions */
+
+/* stih407 DAC registers */
+/* sysconf 5041: Audio-Gue-Control */
+#define STIH407_AUDIO_GLUE_CTRL 0x000000A4
+/* sysconf 5042: Audio-DAC-Control */
+#define STIH407_AUDIO_DAC_CTRL 0x000000A8
+
+/* DAC definitions */
+#define STIH407_DAC_SOFTMUTE		0x0
+#define STIH407_DAC_STANDBY_ANA		0x1
+#define STIH407_DAC_STANDBY		0x2
+
+#define STIH407_DAC_SOFTMUTE_MASK	BIT(STIH407_DAC_SOFTMUTE)
+#define STIH407_DAC_STANDBY_ANA_MASK    BIT(STIH407_DAC_STANDBY_ANA)
+#define STIH407_DAC_STANDBY_MASK        BIT(STIH407_DAC_STANDBY)
+
+/* SPDIF definitions */
+#define SPDIF_BIPHASE_ENABLE		0x6
+#define SPDIF_BIPHASE_IDLE		0x7
+
+#define SPDIF_BIPHASE_ENABLE_MASK	BIT(SPDIF_BIPHASE_ENABLE)
+#define SPDIF_BIPHASE_IDLE_MASK		BIT(SPDIF_BIPHASE_IDLE)
+
+enum {
+	STI_SAS_DAI_SPDIF_OUT,
+	STI_SAS_DAI_ANALOG_OUT,
+};
+
+static const struct reg_default stih407_sas_reg_defaults[] = {
+	{ STIH407_AUDIO_DAC_CTRL, 0x000000000 },
+	{ STIH407_AUDIO_GLUE_CTRL, 0x00000040 },
+};
+
+struct sti_dac_audio {
+	struct regmap *regmap;
+	struct regmap *virt_regmap;
+	int mclk;
+};
+
+struct sti_spdif_audio {
+	struct regmap *regmap;
+	int mclk;
+};
+
+/* device data structure */
+struct sti_sas_dev_data {
+	const struct regmap_config *regmap;
+	const struct snd_soc_dai_ops *dac_ops;  /* DAC function callbacks */
+	const struct snd_soc_dapm_widget *dapm_widgets; /* dapms declaration */
+	const int num_dapm_widgets; /* dapms declaration */
+	const struct snd_soc_dapm_route *dapm_routes; /* route declaration */
+	const int num_dapm_routes; /* route declaration */
+};
+
+/* driver data structure */
+struct sti_sas_data {
+	struct device *dev;
+	const struct sti_sas_dev_data *dev_data;
+	struct sti_dac_audio dac;
+	struct sti_spdif_audio spdif;
+};
+
+/* Read a register from the sysconf reg bank */
+static int sti_sas_read_reg(void *context, unsigned int reg,
+			    unsigned int *value)
+{
+	struct sti_sas_data *drvdata = context;
+	int status;
+	u32 val;
+
+	status = regmap_read(drvdata->dac.regmap, reg, &val);
+	*value = (unsigned int)val;
+
+	return status;
+}
+
+/* Read a register from the sysconf reg bank */
+static int sti_sas_write_reg(void *context, unsigned int reg,
+			     unsigned int value)
+{
+	struct sti_sas_data *drvdata = context;
+
+	return regmap_write(drvdata->dac.regmap, reg, value);
+}
+
+static int  sti_sas_init_sas_registers(struct snd_soc_component *component,
+				       struct sti_sas_data *data)
+{
+	int ret;
+	/*
+	 * DAC and SPDIF are activated by default
+	 * put them in IDLE to save power
+	 */
+
+	/* Initialise bi-phase formatter to disabled */
+	ret = snd_soc_component_update_bits(component, STIH407_AUDIO_GLUE_CTRL,
+				  SPDIF_BIPHASE_ENABLE_MASK, 0);
+
+	if (!ret)
+		/* Initialise bi-phase formatter idle value to 0 */
+		ret = snd_soc_component_update_bits(component, STIH407_AUDIO_GLUE_CTRL,
+					  SPDIF_BIPHASE_IDLE_MASK, 0);
+	if (ret < 0) {
+		dev_err(component->dev, "Failed to update SPDIF registers\n");
+		return ret;
+	}
+
+	/* Init DAC configuration */
+	/* init configuration */
+	ret =  snd_soc_component_update_bits(component, STIH407_AUDIO_DAC_CTRL,
+				   STIH407_DAC_STANDBY_MASK,
+				   STIH407_DAC_STANDBY_MASK);
+
+	if (!ret)
+		ret = snd_soc_component_update_bits(component, STIH407_AUDIO_DAC_CTRL,
+					  STIH407_DAC_STANDBY_ANA_MASK,
+					  STIH407_DAC_STANDBY_ANA_MASK);
+	if (!ret)
+		ret = snd_soc_component_update_bits(component, STIH407_AUDIO_DAC_CTRL,
+					  STIH407_DAC_SOFTMUTE_MASK,
+					  STIH407_DAC_SOFTMUTE_MASK);
+
+	if (ret < 0) {
+		dev_err(component->dev, "Failed to update DAC registers\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+/*
+ * DAC
+ */
+static int sti_sas_dac_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	/* Sanity check only */
+	if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_CBC_CFC) {
+		dev_err(dai->component->dev,
+			"%s: ERROR: Unsupported clocking 0x%x\n",
+			__func__, fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget stih407_sas_dapm_widgets[] = {
+	SND_SOC_DAPM_OUT_DRV("DAC standby ana", STIH407_AUDIO_DAC_CTRL,
+			     STIH407_DAC_STANDBY_ANA, 1, NULL, 0),
+	SND_SOC_DAPM_DAC("DAC standby",  "dac_p", STIH407_AUDIO_DAC_CTRL,
+			 STIH407_DAC_STANDBY, 1),
+	SND_SOC_DAPM_OUTPUT("DAC Output"),
+};
+
+static const struct snd_soc_dapm_route stih407_sas_route[] = {
+	{"DAC Output", NULL, "DAC standby ana"},
+	{"DAC standby ana", NULL, "DAC standby"},
+};
+
+
+static int stih407_sas_dac_mute(struct snd_soc_dai *dai, int mute, int stream)
+{
+	struct snd_soc_component *component = dai->component;
+
+	if (mute) {
+		return snd_soc_component_update_bits(component, STIH407_AUDIO_DAC_CTRL,
+					    STIH407_DAC_SOFTMUTE_MASK,
+					    STIH407_DAC_SOFTMUTE_MASK);
+	} else {
+		return snd_soc_component_update_bits(component, STIH407_AUDIO_DAC_CTRL,
+					    STIH407_DAC_SOFTMUTE_MASK,
+					    0);
+	}
+}
+
+/*
+ * SPDIF
+ */
+static int sti_sas_spdif_set_fmt(struct snd_soc_dai *dai,
+				 unsigned int fmt)
+{
+	if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) != SND_SOC_DAIFMT_CBC_CFC) {
+		dev_err(dai->component->dev,
+			"%s: ERROR: Unsupported clocking mask 0x%x\n",
+			__func__, fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * sti_sas_spdif_trigger:
+ * Trigger function is used to ensure that BiPhase Formater is disabled
+ * before CPU dai is stopped.
+ * This is mandatory to avoid that BPF is stalled
+ */
+static int sti_sas_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
+				 struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		return snd_soc_component_update_bits(component, STIH407_AUDIO_GLUE_CTRL,
+					    SPDIF_BIPHASE_ENABLE_MASK,
+					    SPDIF_BIPHASE_ENABLE_MASK);
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		return snd_soc_component_update_bits(component, STIH407_AUDIO_GLUE_CTRL,
+					    SPDIF_BIPHASE_ENABLE_MASK,
+					    0);
+	default:
+		return -EINVAL;
+	}
+}
+
+static bool sti_sas_volatile_register(struct device *dev, unsigned int reg)
+{
+	if (reg == STIH407_AUDIO_GLUE_CTRL)
+		return true;
+
+	return false;
+}
+
+/*
+ * CODEC DAIS
+ */
+
+/*
+ * sti_sas_set_sysclk:
+ * get MCLK input frequency to check that MCLK-FS ratio is coherent
+ */
+static int sti_sas_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+			      unsigned int freq, int dir)
+{
+	struct snd_soc_component *component = dai->component;
+	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);
+
+	if (dir == SND_SOC_CLOCK_OUT)
+		return 0;
+
+	if (clk_id != 0)
+		return -EINVAL;
+
+	switch (dai->id) {
+	case STI_SAS_DAI_SPDIF_OUT:
+		drvdata->spdif.mclk = freq;
+		break;
+
+	case STI_SAS_DAI_ANALOG_OUT:
+		drvdata->dac.mclk = freq;
+		break;
+	}
+
+	return 0;
+}
+
+static int sti_sas_prepare(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	switch (dai->id) {
+	case STI_SAS_DAI_SPDIF_OUT:
+		if ((drvdata->spdif.mclk / runtime->rate) != 128) {
+			dev_err(component->dev, "unexpected mclk-fs ratio\n");
+			return -EINVAL;
+		}
+		break;
+	case STI_SAS_DAI_ANALOG_OUT:
+		if ((drvdata->dac.mclk / runtime->rate) != 256) {
+			dev_err(component->dev, "unexpected mclk-fs ratio\n");
+			return -EINVAL;
+		}
+		break;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops stih407_dac_ops = {
+	.set_fmt = sti_sas_dac_set_fmt,
+	.mute_stream = stih407_sas_dac_mute,
+	.prepare = sti_sas_prepare,
+	.set_sysclk = sti_sas_set_sysclk,
+};
+
+static const struct regmap_config stih407_sas_regmap = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.fast_io = true,
+	.max_register = STIH407_AUDIO_DAC_CTRL,
+	.reg_defaults = stih407_sas_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(stih407_sas_reg_defaults),
+	.volatile_reg = sti_sas_volatile_register,
+	.cache_type = REGCACHE_RBTREE,
+	.reg_read = sti_sas_read_reg,
+	.reg_write = sti_sas_write_reg,
+};
+
+static const struct sti_sas_dev_data stih407_data = {
+	.regmap = &stih407_sas_regmap,
+	.dac_ops = &stih407_dac_ops,
+	.dapm_widgets = stih407_sas_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(stih407_sas_dapm_widgets),
+	.dapm_routes =	stih407_sas_route,
+	.num_dapm_routes = ARRAY_SIZE(stih407_sas_route),
+};
+
+static struct snd_soc_dai_driver sti_sas_dai[] = {
+	{
+		.name = "sas-dai-spdif-out",
+		.id = STI_SAS_DAI_SPDIF_OUT,
+		.playback = {
+			.stream_name = "spdif_p",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+				 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_64000 |
+				 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+				 SNDRV_PCM_RATE_192000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S32_LE,
+		},
+		.ops = (struct snd_soc_dai_ops[]) {
+			{
+				.set_fmt = sti_sas_spdif_set_fmt,
+				.trigger = sti_sas_spdif_trigger,
+				.set_sysclk = sti_sas_set_sysclk,
+				.prepare = sti_sas_prepare,
+			}
+		},
+	},
+	{
+		.name = "sas-dai-dac",
+		.id = STI_SAS_DAI_ANALOG_OUT,
+		.playback = {
+			.stream_name = "dac_p",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_48000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE |
+				   SNDRV_PCM_FMTBIT_S32_LE,
+		},
+	},
+};
+
+#ifdef CONFIG_PM_SLEEP
+static int sti_sas_resume(struct snd_soc_component *component)
+{
+	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);
+
+	return sti_sas_init_sas_registers(component, drvdata);
+}
+#else
+#define sti_sas_resume NULL
+#endif
+
+static int sti_sas_component_probe(struct snd_soc_component *component)
+{
+	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);
+
+	return sti_sas_init_sas_registers(component, drvdata);
+}
+
+static struct snd_soc_component_driver sti_sas_driver = {
+	.probe			= sti_sas_component_probe,
+	.resume			= sti_sas_resume,
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.endianness		= 1,
+};
+
+static const struct of_device_id sti_sas_dev_match[] = {
+	{
+		.compatible = "st,stih407-sas-codec",
+		.data = &stih407_data,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, sti_sas_dev_match);
+
+static int sti_sas_driver_probe(struct platform_device *pdev)
+{
+	struct device_node *pnode = pdev->dev.of_node;
+	struct sti_sas_data *drvdata;
+	const struct of_device_id *of_id;
+
+	/* Allocate device structure */
+	drvdata = devm_kzalloc(&pdev->dev, sizeof(struct sti_sas_data),
+			       GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	/* Populate data structure depending on compatibility */
+	of_id = of_match_node(sti_sas_dev_match, pnode);
+	if (!of_id->data) {
+		dev_err(&pdev->dev, "data associated to device is missing\n");
+		return -EINVAL;
+	}
+
+	drvdata->dev_data = (struct sti_sas_dev_data *)of_id->data;
+
+	/* Initialise device structure */
+	drvdata->dev = &pdev->dev;
+
+	/* Request the DAC & SPDIF registers memory region */
+	drvdata->dac.virt_regmap = devm_regmap_init(&pdev->dev, NULL, drvdata,
+						    drvdata->dev_data->regmap);
+	if (IS_ERR(drvdata->dac.virt_regmap)) {
+		dev_err(&pdev->dev, "audio registers not enabled\n");
+		return PTR_ERR(drvdata->dac.virt_regmap);
+	}
+
+	/* Request the syscon region */
+	drvdata->dac.regmap =
+		syscon_regmap_lookup_by_phandle(pnode, "st,syscfg");
+	if (IS_ERR(drvdata->dac.regmap)) {
+		dev_err(&pdev->dev, "syscon registers not available\n");
+		return PTR_ERR(drvdata->dac.regmap);
+	}
+	drvdata->spdif.regmap = drvdata->dac.regmap;
+
+	sti_sas_dai[STI_SAS_DAI_ANALOG_OUT].ops = drvdata->dev_data->dac_ops;
+
+	/* Set dapms*/
+	sti_sas_driver.dapm_widgets = drvdata->dev_data->dapm_widgets;
+	sti_sas_driver.num_dapm_widgets = drvdata->dev_data->num_dapm_widgets;
+
+	sti_sas_driver.dapm_routes = drvdata->dev_data->dapm_routes;
+	sti_sas_driver.num_dapm_routes = drvdata->dev_data->num_dapm_routes;
+
+	/* Store context */
+	dev_set_drvdata(&pdev->dev, drvdata);
+
+	return devm_snd_soc_register_component(&pdev->dev, &sti_sas_driver,
+					sti_sas_dai,
+					ARRAY_SIZE(sti_sas_dai));
+}
+
+static struct platform_driver sti_sas_platform_driver = {
+	.driver = {
+		.name = "sti-sas-codec",
+		.of_match_table = sti_sas_dev_match,
+	},
+	.probe = sti_sas_driver_probe,
+};
+
+module_platform_driver(sti_sas_platform_driver);
+
+MODULE_DESCRIPTION("audio codec for STMicroelectronics sti platforms");
+MODULE_AUTHOR("Arnaud.pouliquen@st.com");
+MODULE_LICENSE("GPL v2");