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, 473 insertions, 0 deletions

diff --git a/sound/pci/ak4531_codec.c b/sound/pci/ak4531_codec.c
new file mode 100644
index 000000000..6af88e7b8
--- /dev/null
+++ b/sound/pci/ak4531_codec.c
@@ -0,0 +1,473 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ *  Copyright (c) by Jaroslav Kysela <perex@perex.cz>
+ *  Universal routines for AK4531 codec
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+
+#include <sound/core.h>
+#include <sound/ak4531_codec.h>
+#include <sound/tlv.h>
+
+/*
+MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>");
+MODULE_DESCRIPTION("Universal routines for AK4531 codec");
+MODULE_LICENSE("GPL");
+*/
+
+static void snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531);
+
+/*
+ *
+ */
+ 
+#if 0
+
+static void snd_ak4531_dump(struct snd_ak4531 *ak4531)
+{
+	int idx;
+	
+	for (idx = 0; idx < 0x19; idx++)
+		printk(KERN_DEBUG "ak4531 0x%x: 0x%x\n",
+		       idx, ak4531->regs[idx]);
+}
+
+#endif
+
+/*
+ *
+ */
+
+#define AK4531_SINGLE(xname, xindex, reg, shift, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_ak4531_info_single, \
+  .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
+  .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22) }
+#define AK4531_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv)    \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
+  .name = xname, .index = xindex, \
+  .info = snd_ak4531_info_single, \
+  .get = snd_ak4531_get_single, .put = snd_ak4531_put_single, \
+  .private_value = reg | (shift << 16) | (mask << 24) | (invert << 22), \
+  .tlv = { .p = (xtlv) } }
+
+static int snd_ak4531_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+ 
+static int snd_ak4531_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 16) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int val;
+
+	mutex_lock(&ak4531->reg_mutex);
+	val = (ak4531->regs[reg] >> shift) & mask;
+	mutex_unlock(&ak4531->reg_mutex);
+	if (invert) {
+		val = mask - val;
+	}
+	ucontrol->value.integer.value[0] = val;
+	return 0;
+}
+
+static int snd_ak4531_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int reg = kcontrol->private_value & 0xff;
+	int shift = (kcontrol->private_value >> 16) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int change;
+	int val;
+
+	val = ucontrol->value.integer.value[0] & mask;
+	if (invert) {
+		val = mask - val;
+	}
+	val <<= shift;
+	mutex_lock(&ak4531->reg_mutex);
+	val = (ak4531->regs[reg] & ~(mask << shift)) | val;
+	change = val != ak4531->regs[reg];
+	ak4531->write(ak4531, reg, ak4531->regs[reg] = val);
+	mutex_unlock(&ak4531->reg_mutex);
+	return change;
+}
+
+#define AK4531_DOUBLE(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_ak4531_info_double, \
+  .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
+  .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22) }
+#define AK4531_DOUBLE_TLV(xname, xindex, left_reg, right_reg, left_shift, right_shift, mask, invert, xtlv) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
+  .name = xname, .index = xindex, \
+  .info = snd_ak4531_info_double, \
+  .get = snd_ak4531_get_double, .put = snd_ak4531_put_double, \
+  .private_value = left_reg | (right_reg << 8) | (left_shift << 16) | (right_shift << 19) | (mask << 24) | (invert << 22), \
+  .tlv = { .p = (xtlv) } }
+
+static int snd_ak4531_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+
+	uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 2;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = mask;
+	return 0;
+}
+ 
+static int snd_ak4531_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int left_shift = (kcontrol->private_value >> 16) & 0x07;
+	int right_shift = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int left, right;
+
+	mutex_lock(&ak4531->reg_mutex);
+	left = (ak4531->regs[left_reg] >> left_shift) & mask;
+	right = (ak4531->regs[right_reg] >> right_shift) & mask;
+	mutex_unlock(&ak4531->reg_mutex);
+	if (invert) {
+		left = mask - left;
+		right = mask - right;
+	}
+	ucontrol->value.integer.value[0] = left;
+	ucontrol->value.integer.value[1] = right;
+	return 0;
+}
+
+static int snd_ak4531_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int left_reg = kcontrol->private_value & 0xff;
+	int right_reg = (kcontrol->private_value >> 8) & 0xff;
+	int left_shift = (kcontrol->private_value >> 16) & 0x07;
+	int right_shift = (kcontrol->private_value >> 19) & 0x07;
+	int mask = (kcontrol->private_value >> 24) & 0xff;
+	int invert = (kcontrol->private_value >> 22) & 1;
+	int change;
+	int left, right;
+
+	left = ucontrol->value.integer.value[0] & mask;
+	right = ucontrol->value.integer.value[1] & mask;
+	if (invert) {
+		left = mask - left;
+		right = mask - right;
+	}
+	left <<= left_shift;
+	right <<= right_shift;
+	mutex_lock(&ak4531->reg_mutex);
+	if (left_reg == right_reg) {
+		left = (ak4531->regs[left_reg] & ~((mask << left_shift) | (mask << right_shift))) | left | right;
+		change = left != ak4531->regs[left_reg];
+		ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
+	} else {
+		left = (ak4531->regs[left_reg] & ~(mask << left_shift)) | left;
+		right = (ak4531->regs[right_reg] & ~(mask << right_shift)) | right;
+		change = left != ak4531->regs[left_reg] || right != ak4531->regs[right_reg];
+		ak4531->write(ak4531, left_reg, ak4531->regs[left_reg] = left);
+		ak4531->write(ak4531, right_reg, ak4531->regs[right_reg] = right);
+	}
+	mutex_unlock(&ak4531->reg_mutex);
+	return change;
+}
+
+#define AK4531_INPUT_SW(xname, xindex, reg1, reg2, left_shift, right_shift) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
+  .info = snd_ak4531_info_input_sw, \
+  .get = snd_ak4531_get_input_sw, .put = snd_ak4531_put_input_sw, \
+  .private_value = reg1 | (reg2 << 8) | (left_shift << 16) | (right_shift << 24) }
+
+static int snd_ak4531_info_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 4;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+	return 0;
+}
+ 
+static int snd_ak4531_get_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int reg1 = kcontrol->private_value & 0xff;
+	int reg2 = (kcontrol->private_value >> 8) & 0xff;
+	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
+	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
+
+	mutex_lock(&ak4531->reg_mutex);
+	ucontrol->value.integer.value[0] = (ak4531->regs[reg1] >> left_shift) & 1;
+	ucontrol->value.integer.value[1] = (ak4531->regs[reg2] >> left_shift) & 1;
+	ucontrol->value.integer.value[2] = (ak4531->regs[reg1] >> right_shift) & 1;
+	ucontrol->value.integer.value[3] = (ak4531->regs[reg2] >> right_shift) & 1;
+	mutex_unlock(&ak4531->reg_mutex);
+	return 0;
+}
+
+static int snd_ak4531_put_input_sw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_ak4531 *ak4531 = snd_kcontrol_chip(kcontrol);
+	int reg1 = kcontrol->private_value & 0xff;
+	int reg2 = (kcontrol->private_value >> 8) & 0xff;
+	int left_shift = (kcontrol->private_value >> 16) & 0x0f;
+	int right_shift = (kcontrol->private_value >> 24) & 0x0f;
+	int change;
+	int val1, val2;
+
+	mutex_lock(&ak4531->reg_mutex);
+	val1 = ak4531->regs[reg1] & ~((1 << left_shift) | (1 << right_shift));
+	val2 = ak4531->regs[reg2] & ~((1 << left_shift) | (1 << right_shift));
+	val1 |= (ucontrol->value.integer.value[0] & 1) << left_shift;
+	val2 |= (ucontrol->value.integer.value[1] & 1) << left_shift;
+	val1 |= (ucontrol->value.integer.value[2] & 1) << right_shift;
+	val2 |= (ucontrol->value.integer.value[3] & 1) << right_shift;
+	change = val1 != ak4531->regs[reg1] || val2 != ak4531->regs[reg2];
+	ak4531->write(ak4531, reg1, ak4531->regs[reg1] = val1);
+	ak4531->write(ak4531, reg2, ak4531->regs[reg2] = val2);
+	mutex_unlock(&ak4531->reg_mutex);
+	return change;
+}
+
+static const DECLARE_TLV_DB_SCALE(db_scale_master, -6200, 200, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_mono, -2800, 400, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_input, -5000, 200, 0);
+
+static const struct snd_kcontrol_new snd_ak4531_controls[] = {
+
+AK4531_DOUBLE_TLV("Master Playback Switch", 0,
+		  AK4531_LMASTER, AK4531_RMASTER, 7, 7, 1, 1,
+		  db_scale_master),
+AK4531_DOUBLE("Master Playback Volume", 0, AK4531_LMASTER, AK4531_RMASTER, 0, 0, 0x1f, 1),
+
+AK4531_SINGLE_TLV("Master Mono Playback Switch", 0, AK4531_MONO_OUT, 7, 1, 1,
+		  db_scale_mono),
+AK4531_SINGLE("Master Mono Playback Volume", 0, AK4531_MONO_OUT, 0, 0x07, 1),
+
+AK4531_DOUBLE("PCM Switch", 0, AK4531_LVOICE, AK4531_RVOICE, 7, 7, 1, 1),
+AK4531_DOUBLE_TLV("PCM Volume", 0, AK4531_LVOICE, AK4531_RVOICE, 0, 0, 0x1f, 1,
+		  db_scale_input),
+AK4531_DOUBLE("PCM Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 3, 2, 1, 0),
+AK4531_DOUBLE("PCM Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 2, 2, 1, 0),
+
+AK4531_DOUBLE("PCM Switch", 1, AK4531_LFM, AK4531_RFM, 7, 7, 1, 1),
+AK4531_DOUBLE_TLV("PCM Volume", 1, AK4531_LFM, AK4531_RFM, 0, 0, 0x1f, 1,
+		  db_scale_input),
+AK4531_DOUBLE("PCM Playback Switch", 1, AK4531_OUT_SW1, AK4531_OUT_SW1, 6, 5, 1, 0),
+AK4531_INPUT_SW("PCM Capture Route", 1, AK4531_LIN_SW1, AK4531_RIN_SW1, 6, 5),
+
+AK4531_DOUBLE("CD Switch", 0, AK4531_LCD, AK4531_RCD, 7, 7, 1, 1),
+AK4531_DOUBLE_TLV("CD Volume", 0, AK4531_LCD, AK4531_RCD, 0, 0, 0x1f, 1,
+		  db_scale_input),
+AK4531_DOUBLE("CD Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 2, 1, 1, 0),
+AK4531_INPUT_SW("CD Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 2, 1),
+
+AK4531_DOUBLE("Line Switch", 0, AK4531_LLINE, AK4531_RLINE, 7, 7, 1, 1),
+AK4531_DOUBLE_TLV("Line Volume", 0, AK4531_LLINE, AK4531_RLINE, 0, 0, 0x1f, 1,
+		  db_scale_input),
+AK4531_DOUBLE("Line Playback Switch", 0, AK4531_OUT_SW1, AK4531_OUT_SW1, 4, 3, 1, 0),
+AK4531_INPUT_SW("Line Capture Route", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 4, 3),
+
+AK4531_DOUBLE("Aux Switch", 0, AK4531_LAUXA, AK4531_RAUXA, 7, 7, 1, 1),
+AK4531_DOUBLE_TLV("Aux Volume", 0, AK4531_LAUXA, AK4531_RAUXA, 0, 0, 0x1f, 1,
+		  db_scale_input),
+AK4531_DOUBLE("Aux Playback Switch", 0, AK4531_OUT_SW2, AK4531_OUT_SW2, 5, 4, 1, 0),
+AK4531_INPUT_SW("Aux Capture Route", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 4, 3),
+
+AK4531_SINGLE("Mono Switch", 0, AK4531_MONO1, 7, 1, 1),
+AK4531_SINGLE_TLV("Mono Volume", 0, AK4531_MONO1, 0, 0x1f, 1, db_scale_input),
+AK4531_SINGLE("Mono Playback Switch", 0, AK4531_OUT_SW2, 0, 1, 0),
+AK4531_DOUBLE("Mono Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 0, 0, 1, 0),
+
+AK4531_SINGLE("Mono Switch", 1, AK4531_MONO2, 7, 1, 1),
+AK4531_SINGLE_TLV("Mono Volume", 1, AK4531_MONO2, 0, 0x1f, 1, db_scale_input),
+AK4531_SINGLE("Mono Playback Switch", 1, AK4531_OUT_SW2, 1, 1, 0),
+AK4531_DOUBLE("Mono Capture Switch", 1, AK4531_LIN_SW2, AK4531_RIN_SW2, 1, 1, 1, 0),
+
+AK4531_SINGLE_TLV("Mic Volume", 0, AK4531_MIC, 0, 0x1f, 1, db_scale_input),
+AK4531_SINGLE("Mic Switch", 0, AK4531_MIC, 7, 1, 1),
+AK4531_SINGLE("Mic Playback Switch", 0, AK4531_OUT_SW1, 0, 1, 0),
+AK4531_DOUBLE("Mic Capture Switch", 0, AK4531_LIN_SW1, AK4531_RIN_SW1, 0, 0, 1, 0),
+
+AK4531_DOUBLE("Mic Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 7, 7, 1, 0),
+AK4531_DOUBLE("Mono1 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 6, 6, 1, 0),
+AK4531_DOUBLE("Mono2 Bypass Capture Switch", 0, AK4531_LIN_SW2, AK4531_RIN_SW2, 5, 5, 1, 0),
+
+AK4531_SINGLE("AD Input Select", 0, AK4531_AD_IN, 0, 1, 0),
+AK4531_SINGLE("Mic Boost (+30dB)", 0, AK4531_MIC_GAIN, 0, 1, 0)
+};
+
+static int snd_ak4531_free(struct snd_ak4531 *ak4531)
+{
+	if (ak4531) {
+		if (ak4531->private_free)
+			ak4531->private_free(ak4531);
+		kfree(ak4531);
+	}
+	return 0;
+}
+
+static int snd_ak4531_dev_free(struct snd_device *device)
+{
+	struct snd_ak4531 *ak4531 = device->device_data;
+	return snd_ak4531_free(ak4531);
+}
+
+static const u8 snd_ak4531_initial_map[0x19 + 1] = {
+	0x9f,		/* 00: Master Volume Lch */
+	0x9f,		/* 01: Master Volume Rch */
+	0x9f,		/* 02: Voice Volume Lch */
+	0x9f,		/* 03: Voice Volume Rch */
+	0x9f,		/* 04: FM Volume Lch */
+	0x9f,		/* 05: FM Volume Rch */
+	0x9f,		/* 06: CD Audio Volume Lch */
+	0x9f,		/* 07: CD Audio Volume Rch */
+	0x9f,		/* 08: Line Volume Lch */
+	0x9f,		/* 09: Line Volume Rch */
+	0x9f,		/* 0a: Aux Volume Lch */
+	0x9f,		/* 0b: Aux Volume Rch */
+	0x9f,		/* 0c: Mono1 Volume */
+	0x9f,		/* 0d: Mono2 Volume */
+	0x9f,		/* 0e: Mic Volume */
+	0x87,		/* 0f: Mono-out Volume */
+	0x00,		/* 10: Output Mixer SW1 */
+	0x00,		/* 11: Output Mixer SW2 */
+	0x00,		/* 12: Lch Input Mixer SW1 */
+	0x00,		/* 13: Rch Input Mixer SW1 */
+	0x00,		/* 14: Lch Input Mixer SW2 */
+	0x00,		/* 15: Rch Input Mixer SW2 */
+	0x00,		/* 16: Reset & Power Down */
+	0x00,		/* 17: Clock Select */
+	0x00,		/* 18: AD Input Select */
+	0x01		/* 19: Mic Amp Setup */
+};
+
+int snd_ak4531_mixer(struct snd_card *card,
+		     struct snd_ak4531 *_ak4531,
+		     struct snd_ak4531 **rak4531)
+{
+	unsigned int idx;
+	int err;
+	struct snd_ak4531 *ak4531;
+	static const struct snd_device_ops ops = {
+		.dev_free =	snd_ak4531_dev_free,
+	};
+
+	if (snd_BUG_ON(!card || !_ak4531))
+		return -EINVAL;
+	if (rak4531)
+		*rak4531 = NULL;
+	ak4531 = kzalloc(sizeof(*ak4531), GFP_KERNEL);
+	if (ak4531 == NULL)
+		return -ENOMEM;
+	*ak4531 = *_ak4531;
+	mutex_init(&ak4531->reg_mutex);
+	err = snd_component_add(card, "AK4531");
+	if (err < 0) {
+		snd_ak4531_free(ak4531);
+		return err;
+	}
+	strcpy(card->mixername, "Asahi Kasei AK4531");
+	ak4531->write(ak4531, AK4531_RESET, 0x03);	/* no RST, PD */
+	udelay(100);
+	ak4531->write(ak4531, AK4531_CLOCK, 0x00);	/* CODEC ADC and CODEC DAC use {LR,B}CLK2 and run off LRCLK2 PLL */
+	for (idx = 0; idx <= 0x19; idx++) {
+		if (idx == AK4531_RESET || idx == AK4531_CLOCK)
+			continue;
+		ak4531->write(ak4531, idx, ak4531->regs[idx] = snd_ak4531_initial_map[idx]);	/* recording source is mixer */
+	}
+	for (idx = 0; idx < ARRAY_SIZE(snd_ak4531_controls); idx++) {
+		err = snd_ctl_add(card, snd_ctl_new1(&snd_ak4531_controls[idx], ak4531));
+		if (err < 0) {
+			snd_ak4531_free(ak4531);
+			return err;
+		}
+	}
+	snd_ak4531_proc_init(card, ak4531);
+	err = snd_device_new(card, SNDRV_DEV_CODEC, ak4531, &ops);
+	if (err < 0) {
+		snd_ak4531_free(ak4531);
+		return err;
+	}
+
+#if 0
+	snd_ak4531_dump(ak4531);
+#endif
+	if (rak4531)
+		*rak4531 = ak4531;
+	return 0;
+}
+
+/*
+ * power management
+ */
+#ifdef CONFIG_PM
+void snd_ak4531_suspend(struct snd_ak4531 *ak4531)
+{
+	/* mute */
+	ak4531->write(ak4531, AK4531_LMASTER, 0x9f);
+	ak4531->write(ak4531, AK4531_RMASTER, 0x9f);
+	/* powerdown */
+	ak4531->write(ak4531, AK4531_RESET, 0x01);
+}
+
+void snd_ak4531_resume(struct snd_ak4531 *ak4531)
+{
+	int idx;
+
+	/* initialize */
+	ak4531->write(ak4531, AK4531_RESET, 0x03);
+	udelay(100);
+	ak4531->write(ak4531, AK4531_CLOCK, 0x00);
+	/* restore mixer registers */
+	for (idx = 0; idx <= 0x19; idx++) {
+		if (idx == AK4531_RESET || idx == AK4531_CLOCK)
+			continue;
+		ak4531->write(ak4531, idx, ak4531->regs[idx]);
+	}
+}
+#endif
+
+/*
+ * /proc interface
+ */
+
+static void snd_ak4531_proc_read(struct snd_info_entry *entry, 
+				 struct snd_info_buffer *buffer)
+{
+	struct snd_ak4531 *ak4531 = entry->private_data;
+
+	snd_iprintf(buffer, "Asahi Kasei AK4531\n\n");
+	snd_iprintf(buffer, "Recording source   : %s\n"
+		    "MIC gain           : %s\n",
+		    ak4531->regs[AK4531_AD_IN] & 1 ? "external" : "mixer",
+		    ak4531->regs[AK4531_MIC_GAIN] & 1 ? "+30dB" : "+0dB");
+}
+
+static void
+snd_ak4531_proc_init(struct snd_card *card, struct snd_ak4531 *ak4531)
+{
+	snd_card_ro_proc_new(card, "ak4531", ak4531, snd_ak4531_proc_read);
+}