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, 312 insertions, 0 deletions

diff --git a/drivers/mfd/mt6370.c b/drivers/mfd/mt6370.c
new file mode 100644
index 000000000..cf19cce2f
--- /dev/null
+++ b/drivers/mfd/mt6370.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2022 Richtek Technology Corp.
+ *
+ * Author: ChiYuan Huang <cy_huang@richtek.com>
+ */
+
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/core.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+
+#include "mt6370.h"
+
+#define MT6370_REG_DEV_INFO	0x100
+#define MT6370_REG_CHG_IRQ1	0x1C0
+#define MT6370_REG_CHG_MASK1	0x1E0
+#define MT6370_REG_MAXADDR	0x1FF
+
+#define MT6370_VENID_MASK	GENMASK(7, 4)
+
+#define MT6370_NUM_IRQREGS	16
+#define MT6370_USBC_I2CADDR	0x4E
+#define MT6370_MAX_ADDRLEN	2
+
+#define MT6370_VENID_RT5081	0x8
+#define MT6370_VENID_RT5081A	0xA
+#define MT6370_VENID_MT6370	0xE
+#define MT6370_VENID_MT6371	0xF
+#define MT6370_VENID_MT6372P	0x9
+#define MT6370_VENID_MT6372CP	0xB
+
+static const struct regmap_irq mt6370_irqs[] = {
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHGON, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TREG, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_AICR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_MIVR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_PWR_RDY, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FL_CHG_VINOVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VSYSUV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VSYSOV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VBATOV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_VINOVPCHG, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_COLD, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_COOL, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_WARM, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_BAT_HOT, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TS_STATC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_FAULT, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_STATC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TMR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_BATABS, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_ADPBAD, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_RVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_TSHUTDOWN, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_IINMEAS, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_ICCMEAS, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHGDET_DONE, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_WDTMR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_SSFINISH, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_RECHG, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_TERM, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHG_IEOC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_ADC_DONE, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_PUMPX_DONE, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_BATUV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_MIDOV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BST_OLP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_ATTACH, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DETACH, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_STPDONE, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_VBUSDET_DONE, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_HVDCP_DET, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_CHGDET, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DCDT, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_VGOK, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_WDTMR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_UC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_OC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DIRCHG_OV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_SWON, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_UVP_D, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_UVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_OVP_D, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OVPCTRL_OVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED_STRBPIN, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED_TORPIN, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED_TX, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED_LVF, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED2_SHORT, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED1_SHORT, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED2_STRB, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED1_STRB, 8),
+	REGMAP_IRQ_REG_LINE(mT6370_IRQ_FLED2_STRB_TO, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED1_STRB_TO, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED2_TOR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_FLED1_TOR, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_OTP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_VDDA_OVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_VDDA_UV, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_LDO_OC, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BLED_OCP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_BLED_OVP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DSV_VNEG_OCP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DSV_VPOS_OCP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DSV_BST_OCP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DSV_VNEG_SCP, 8),
+	REGMAP_IRQ_REG_LINE(MT6370_IRQ_DSV_VPOS_SCP, 8),
+};
+
+static const struct regmap_irq_chip mt6370_irq_chip = {
+	.name		= "mt6370-irqs",
+	.status_base	= MT6370_REG_CHG_IRQ1,
+	.mask_base	= MT6370_REG_CHG_MASK1,
+	.num_regs	= MT6370_NUM_IRQREGS,
+	.irqs		= mt6370_irqs,
+	.num_irqs	= ARRAY_SIZE(mt6370_irqs),
+};
+
+static const struct resource mt6370_regulator_irqs[] = {
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_DSV_VPOS_SCP, "db_vpos_scp"),
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_DSV_VNEG_SCP, "db_vneg_scp"),
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_DSV_BST_OCP, "db_vbst_ocp"),
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_DSV_VPOS_OCP, "db_vpos_ocp"),
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_DSV_VNEG_OCP, "db_vneg_ocp"),
+	DEFINE_RES_IRQ_NAMED(MT6370_IRQ_LDO_OC, "ldo_oc"),
+};
+
+static const struct mfd_cell mt6370_devices[] = {
+	MFD_CELL_OF("mt6370-adc",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-adc"),
+	MFD_CELL_OF("mt6370-charger",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-charger"),
+	MFD_CELL_OF("mt6370-flashlight",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-flashlight"),
+	MFD_CELL_OF("mt6370-indicator",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-indicator"),
+	MFD_CELL_OF("mt6370-tcpc",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-tcpc"),
+	MFD_CELL_RES("mt6370-regulator", mt6370_regulator_irqs),
+};
+
+static const struct mfd_cell mt6370_exclusive_devices[] = {
+	MFD_CELL_OF("mt6370-backlight",
+		    NULL, NULL, 0, 0, "mediatek,mt6370-backlight"),
+};
+
+static const struct mfd_cell mt6372_exclusive_devices[] = {
+	MFD_CELL_OF("mt6370-backlight",
+		    NULL, NULL, 0, 0, "mediatek,mt6372-backlight"),
+};
+
+static int mt6370_check_vendor_info(struct device *dev, struct regmap *rmap,
+				    int *vid)
+{
+	unsigned int devinfo;
+	int ret;
+
+	ret = regmap_read(rmap, MT6370_REG_DEV_INFO, &devinfo);
+	if (ret)
+		return ret;
+
+	*vid = FIELD_GET(MT6370_VENID_MASK, devinfo);
+	switch (*vid) {
+	case MT6370_VENID_RT5081:
+	case MT6370_VENID_RT5081A:
+	case MT6370_VENID_MT6370:
+	case MT6370_VENID_MT6371:
+	case MT6370_VENID_MT6372P:
+	case MT6370_VENID_MT6372CP:
+		return 0;
+	default:
+		dev_err(dev, "Unknown Vendor ID 0x%02x\n", devinfo);
+		return -ENODEV;
+	}
+}
+
+static int mt6370_regmap_read(void *context, const void *reg_buf,
+			      size_t reg_size, void *val_buf, size_t val_size)
+{
+	struct mt6370_info *info = context;
+	const u8 *u8_buf = reg_buf;
+	u8 bank_idx, bank_addr;
+	int ret;
+
+	bank_idx = u8_buf[0];
+	bank_addr = u8_buf[1];
+
+	ret = i2c_smbus_read_i2c_block_data(info->i2c[bank_idx], bank_addr,
+					    val_size, val_buf);
+	if (ret < 0)
+		return ret;
+
+	if (ret != val_size)
+		return -EIO;
+
+	return 0;
+}
+
+static int mt6370_regmap_write(void *context, const void *data, size_t count)
+{
+	struct mt6370_info *info = context;
+	const u8 *u8_buf = data;
+	u8 bank_idx, bank_addr;
+	int len = count - MT6370_MAX_ADDRLEN;
+
+	bank_idx = u8_buf[0];
+	bank_addr = u8_buf[1];
+
+	return i2c_smbus_write_i2c_block_data(info->i2c[bank_idx], bank_addr,
+					      len, data + MT6370_MAX_ADDRLEN);
+}
+
+static const struct regmap_bus mt6370_regmap_bus = {
+	.read		= mt6370_regmap_read,
+	.write		= mt6370_regmap_write,
+};
+
+static const struct regmap_config mt6370_regmap_config = {
+	.reg_bits		= 16,
+	.val_bits		= 8,
+	.reg_format_endian	= REGMAP_ENDIAN_BIG,
+	.max_register		= MT6370_REG_MAXADDR,
+};
+
+static int mt6370_probe(struct i2c_client *i2c)
+{
+	struct mt6370_info *info;
+	struct i2c_client *usbc_i2c;
+	struct regmap *regmap;
+	struct device *dev = &i2c->dev;
+	int ret, vid;
+
+	info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	usbc_i2c = devm_i2c_new_dummy_device(dev, i2c->adapter,
+					     MT6370_USBC_I2CADDR);
+	if (IS_ERR(usbc_i2c))
+		return dev_err_probe(dev, PTR_ERR(usbc_i2c),
+				     "Failed to register USBC I2C client\n");
+
+	/* Assign I2C client for PMU and TypeC */
+	info->i2c[MT6370_PMU_I2C] = i2c;
+	info->i2c[MT6370_USBC_I2C] = usbc_i2c;
+
+	regmap = devm_regmap_init(dev, &mt6370_regmap_bus,
+				  info, &mt6370_regmap_config);
+	if (IS_ERR(regmap))
+		return dev_err_probe(dev, PTR_ERR(regmap),
+				     "Failed to init regmap\n");
+
+	ret = mt6370_check_vendor_info(dev, regmap, &vid);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to check vendor info\n");
+
+	ret = devm_regmap_add_irq_chip(dev, regmap, i2c->irq,
+				       IRQF_ONESHOT, -1, &mt6370_irq_chip,
+				       &info->irq_data);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to add irq chip\n");
+
+	switch (vid) {
+	case MT6370_VENID_MT6372P:
+	case MT6370_VENID_MT6372CP:
+		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
+					   mt6372_exclusive_devices,
+					   ARRAY_SIZE(mt6372_exclusive_devices),
+					   NULL, 0,
+					   regmap_irq_get_domain(info->irq_data));
+		break;
+	default:
+		ret = devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
+					   mt6370_exclusive_devices,
+					   ARRAY_SIZE(mt6370_exclusive_devices),
+					   NULL, 0,
+					   regmap_irq_get_domain(info->irq_data));
+		break;
+	}
+
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to add the exclusive devices\n");
+
+	return devm_mfd_add_devices(dev, PLATFORM_DEVID_AUTO,
+				    mt6370_devices, ARRAY_SIZE(mt6370_devices),
+				    NULL, 0,
+				    regmap_irq_get_domain(info->irq_data));
+}
+
+static const struct of_device_id mt6370_match_table[] = {
+	{ .compatible = "mediatek,mt6370" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, mt6370_match_table);
+
+static struct i2c_driver mt6370_driver = {
+	.driver = {
+		.name = "mt6370",
+		.of_match_table = mt6370_match_table,
+	},
+	.probe_new = mt6370_probe,
+};
+module_i2c_driver(mt6370_driver);
+
+MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
+MODULE_DESCRIPTION("MediaTek MT6370 SubPMIC Driver");
+MODULE_LICENSE("GPL v2");