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, 374 insertions, 0 deletions

diff --git a/drivers/regulator/rtq2134-regulator.c b/drivers/regulator/rtq2134-regulator.c
new file mode 100644
index 000000000..8e13dea35
--- /dev/null
+++ b/drivers/regulator/rtq2134-regulator.c
@@ -0,0 +1,374 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/bitops.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/regulator/driver.h>
+
+enum {
+	RTQ2134_IDX_BUCK1 = 0,
+	RTQ2134_IDX_BUCK2,
+	RTQ2134_IDX_BUCK3,
+	RTQ2134_IDX_MAX
+};
+
+#define RTQ2134_AUTO_MODE		0
+#define RTQ2134_FCCM_MODE		1
+
+#define RTQ2134_BUCK_DVS0_CTRL		0
+#define RTQ2134_BUCK_VSEL_CTRL		2
+
+#define RTQ2134_REG_IO_CHIPNAME		0x01
+#define RTQ2134_REG_FLT_RECORDTEMP	0x13
+#define RTQ2134_REG_FLT_RECORDBUCK(_id)	(0x14 + (_id))
+#define RTQ2134_REG_FLT_BUCKCTRL(_id)	(0x37 + (_id))
+#define RTQ2134_REG_BUCK1_CFG0		0x42
+#define RTQ2134_REG_BUCK1_DVS0CFG1	0x48
+#define RTQ2134_REG_BUCK1_DVS0CFG0	0x49
+#define RTQ2134_REG_BUCK1_DVS1CFG1	0x4A
+#define RTQ2134_REG_BUCK1_DVS1CFG0	0x4B
+#define RTQ2134_REG_BUCK1_DVSCFG	0x52
+#define RTQ2134_REG_BUCK1_RSPCFG	0x54
+#define RTQ2134_REG_BUCK2_CFG0		0x5F
+#define RTQ2134_REG_BUCK2_DVS0CFG1	0x62
+#define RTQ2134_REG_BUCK2_DVS0CFG0	0x63
+#define RTQ2134_REG_BUCK2_DVS1CFG1	0x64
+#define RTQ2134_REG_BUCK2_DVS1CFG0	0x65
+#define RTQ2134_REG_BUCK2_DVSCFG	0x6C
+#define RTQ2134_REG_BUCK2_RSPCFG	0x6E
+#define RTQ2134_REG_BUCK3_CFG0		0x79
+#define RTQ2134_REG_BUCK3_DVS0CFG1	0x7C
+#define RTQ2134_REG_BUCK3_DVS0CFG0	0x7D
+#define RTQ2134_REG_BUCK3_DVS1CFG1	0x7E
+#define RTQ2134_REG_BUCK3_DVS1CFG0	0x7F
+#define RTQ2134_REG_BUCK3_DVSCFG	0x86
+#define RTQ2134_REG_BUCK3_RSPCFG	0x88
+#define RTQ2134_REG_BUCK3_SLEWCTRL	0x89
+
+#define RTQ2134_VOUT_MAXNUM		256
+#define RTQ2134_VOUT_MASK		0xFF
+#define RTQ2134_VOUTEN_MASK		BIT(0)
+#define RTQ2134_ACTDISCHG_MASK		BIT(0)
+#define RTQ2134_RSPUP_MASK		GENMASK(6, 4)
+#define RTQ2134_FCCM_MASK		BIT(5)
+#define RTQ2134_UVHICCUP_MASK		BIT(3)
+#define RTQ2134_BUCKDVS_CTRL_MASK	GENMASK(1, 0)
+#define RTQ2134_CHIPOT_MASK		BIT(2)
+#define RTQ2134_BUCKOV_MASK		BIT(5)
+#define RTQ2134_BUCKUV_MASK		BIT(4)
+
+struct rtq2134_regulator_desc {
+	struct regulator_desc desc;
+	/* Extension for proprietary register and mask */
+	unsigned int mode_reg;
+	unsigned int mode_mask;
+	unsigned int suspend_enable_reg;
+	unsigned int suspend_enable_mask;
+	unsigned int suspend_vsel_reg;
+	unsigned int suspend_vsel_mask;
+	unsigned int suspend_mode_reg;
+	unsigned int suspend_mode_mask;
+	unsigned int dvs_ctrl_reg;
+};
+
+static int rtq2134_buck_set_mode(struct regulator_dev *rdev, unsigned int mode)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+	unsigned int val;
+
+	if (mode == REGULATOR_MODE_NORMAL)
+		val = RTQ2134_AUTO_MODE;
+	else if (mode == REGULATOR_MODE_FAST)
+		val = RTQ2134_FCCM_MODE;
+	else
+		return -EINVAL;
+
+	val <<= ffs(desc->mode_mask) - 1;
+	return regmap_update_bits(rdev->regmap, desc->mode_reg, desc->mode_mask,
+				  val);
+}
+
+static unsigned int rtq2134_buck_get_mode(struct regulator_dev *rdev)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+	unsigned int mode;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, desc->mode_reg, &mode);
+	if (ret)
+		return ret;
+
+	if (mode & desc->mode_mask)
+		return REGULATOR_MODE_FAST;
+	return REGULATOR_MODE_NORMAL;
+}
+
+static int rtq2134_buck_set_suspend_voltage(struct regulator_dev *rdev, int uV)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+	int sel;
+
+	sel = regulator_map_voltage_linear_range(rdev, uV, uV);
+	if (sel < 0)
+		return sel;
+
+	sel <<= ffs(desc->suspend_vsel_mask) - 1;
+
+	return regmap_update_bits(rdev->regmap, desc->suspend_vsel_reg,
+				  desc->suspend_vsel_mask, sel);
+}
+
+static int rtq2134_buck_set_suspend_enable(struct regulator_dev *rdev)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+	unsigned int val = desc->suspend_enable_mask;
+
+	return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg,
+				  desc->suspend_enable_mask, val);
+}
+
+static int rtq2134_buck_set_suspend_disable(struct regulator_dev *rdev)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+
+	return regmap_update_bits(rdev->regmap, desc->suspend_enable_reg,
+				  desc->suspend_enable_mask, 0);
+}
+
+static int rtq2134_buck_set_suspend_mode(struct regulator_dev *rdev,
+					 unsigned int mode)
+{
+	struct rtq2134_regulator_desc *desc =
+		(struct rtq2134_regulator_desc *)rdev->desc;
+	unsigned int val;
+
+	if (mode == REGULATOR_MODE_NORMAL)
+		val = RTQ2134_AUTO_MODE;
+	else if (mode == REGULATOR_MODE_FAST)
+		val = RTQ2134_FCCM_MODE;
+	else
+		return -EINVAL;
+
+	val <<= ffs(desc->suspend_mode_mask) - 1;
+	return regmap_update_bits(rdev->regmap, desc->suspend_mode_reg,
+				  desc->suspend_mode_mask, val);
+}
+
+static int rtq2134_buck_get_error_flags(struct regulator_dev *rdev,
+					unsigned int *flags)
+{
+	int rid = rdev_get_id(rdev);
+	unsigned int chip_error, buck_error, events = 0;
+	int ret;
+
+	ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDTEMP,
+			  &chip_error);
+	if (ret) {
+		dev_err(&rdev->dev, "Failed to get chip error flag\n");
+		return ret;
+	}
+
+	ret = regmap_read(rdev->regmap, RTQ2134_REG_FLT_RECORDBUCK(rid),
+			  &buck_error);
+	if (ret) {
+		dev_err(&rdev->dev, "Failed to get buck error flag\n");
+		return ret;
+	}
+
+	if (chip_error & RTQ2134_CHIPOT_MASK)
+		events |= REGULATOR_ERROR_OVER_TEMP;
+
+	if (buck_error & RTQ2134_BUCKUV_MASK)
+		events |= REGULATOR_ERROR_UNDER_VOLTAGE;
+
+	if (buck_error & RTQ2134_BUCKOV_MASK)
+		events |= REGULATOR_ERROR_REGULATION_OUT;
+
+	*flags = events;
+	return 0;
+}
+
+static const struct regulator_ops rtq2134_buck_ops = {
+	.list_voltage = regulator_list_voltage_linear_range,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.is_enabled = regulator_is_enabled_regmap,
+	.set_active_discharge = regulator_set_active_discharge_regmap,
+	.set_ramp_delay = regulator_set_ramp_delay_regmap,
+	.set_mode = rtq2134_buck_set_mode,
+	.get_mode = rtq2134_buck_get_mode,
+	.set_suspend_voltage = rtq2134_buck_set_suspend_voltage,
+	.set_suspend_enable = rtq2134_buck_set_suspend_enable,
+	.set_suspend_disable = rtq2134_buck_set_suspend_disable,
+	.set_suspend_mode = rtq2134_buck_set_suspend_mode,
+	.get_error_flags = rtq2134_buck_get_error_flags,
+};
+
+static const struct linear_range rtq2134_buck_vout_ranges[] = {
+	REGULATOR_LINEAR_RANGE(300000, 0, 200, 5000),
+	REGULATOR_LINEAR_RANGE(1310000, 201, 255, 10000)
+};
+
+static unsigned int rtq2134_buck_of_map_mode(unsigned int mode)
+{
+	switch (mode) {
+	case RTQ2134_AUTO_MODE:
+		return REGULATOR_MODE_NORMAL;
+	case RTQ2134_FCCM_MODE:
+		return REGULATOR_MODE_FAST;
+	}
+
+	return REGULATOR_MODE_INVALID;
+}
+
+static int rtq2134_buck_of_parse_cb(struct device_node *np,
+				    const struct regulator_desc *desc,
+				    struct regulator_config *cfg)
+{
+	struct rtq2134_regulator_desc *rdesc =
+		(struct rtq2134_regulator_desc *)desc;
+	int rid = desc->id;
+	bool uv_shutdown, vsel_dvs;
+	unsigned int val;
+	int ret;
+
+	vsel_dvs = of_property_read_bool(np, "richtek,use-vsel-dvs");
+	if (vsel_dvs)
+		val = RTQ2134_BUCK_VSEL_CTRL;
+	else
+		val = RTQ2134_BUCK_DVS0_CTRL;
+
+	ret = regmap_update_bits(cfg->regmap, rdesc->dvs_ctrl_reg,
+				 RTQ2134_BUCKDVS_CTRL_MASK, val);
+	if (ret)
+		return ret;
+
+	uv_shutdown = of_property_read_bool(np, "richtek,uv-shutdown");
+	if (uv_shutdown)
+		val = 0;
+	else
+		val = RTQ2134_UVHICCUP_MASK;
+
+	return regmap_update_bits(cfg->regmap, RTQ2134_REG_FLT_BUCKCTRL(rid),
+				  RTQ2134_UVHICCUP_MASK, val);
+}
+
+static const unsigned int rtq2134_buck_ramp_delay_table[] = {
+	0, 16000, 0, 8000, 4000, 2000, 1000, 500
+};
+
+#define RTQ2134_BUCK_DESC(_id) { \
+	.desc = { \
+		.name = "rtq2134_buck" #_id, \
+		.of_match = of_match_ptr("buck" #_id), \
+		.regulators_node = of_match_ptr("regulators"), \
+		.id = RTQ2134_IDX_BUCK##_id, \
+		.type = REGULATOR_VOLTAGE, \
+		.owner = THIS_MODULE, \
+		.ops = &rtq2134_buck_ops, \
+		.n_voltages = RTQ2134_VOUT_MAXNUM, \
+		.linear_ranges = rtq2134_buck_vout_ranges, \
+		.n_linear_ranges = ARRAY_SIZE(rtq2134_buck_vout_ranges), \
+		.vsel_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG1, \
+		.vsel_mask = RTQ2134_VOUT_MASK, \
+		.enable_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \
+		.enable_mask = RTQ2134_VOUTEN_MASK, \
+		.active_discharge_reg = RTQ2134_REG_BUCK##_id##_CFG0, \
+		.active_discharge_mask = RTQ2134_ACTDISCHG_MASK, \
+		.active_discharge_on = RTQ2134_ACTDISCHG_MASK, \
+		.ramp_reg = RTQ2134_REG_BUCK##_id##_RSPCFG, \
+		.ramp_mask = RTQ2134_RSPUP_MASK, \
+		.ramp_delay_table = rtq2134_buck_ramp_delay_table, \
+		.n_ramp_values = ARRAY_SIZE(rtq2134_buck_ramp_delay_table), \
+		.of_map_mode = rtq2134_buck_of_map_mode, \
+		.of_parse_cb = rtq2134_buck_of_parse_cb, \
+	}, \
+	.mode_reg = RTQ2134_REG_BUCK##_id##_DVS0CFG0, \
+	.mode_mask = RTQ2134_FCCM_MASK, \
+	.suspend_mode_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \
+	.suspend_mode_mask = RTQ2134_FCCM_MASK, \
+	.suspend_enable_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG0, \
+	.suspend_enable_mask = RTQ2134_VOUTEN_MASK, \
+	.suspend_vsel_reg = RTQ2134_REG_BUCK##_id##_DVS1CFG1, \
+	.suspend_vsel_mask = RTQ2134_VOUT_MASK, \
+	.dvs_ctrl_reg = RTQ2134_REG_BUCK##_id##_DVSCFG, \
+}
+
+static const struct rtq2134_regulator_desc rtq2134_regulator_descs[] = {
+	RTQ2134_BUCK_DESC(1),
+	RTQ2134_BUCK_DESC(2),
+	RTQ2134_BUCK_DESC(3)
+};
+
+static bool rtq2134_is_accissible_reg(struct device *dev, unsigned int reg)
+{
+	if (reg >= RTQ2134_REG_IO_CHIPNAME && reg <= RTQ2134_REG_BUCK3_SLEWCTRL)
+		return true;
+	return false;
+}
+
+static const struct regmap_config rtq2134_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = RTQ2134_REG_BUCK3_SLEWCTRL,
+
+	.readable_reg = rtq2134_is_accissible_reg,
+	.writeable_reg = rtq2134_is_accissible_reg,
+};
+
+static int rtq2134_probe(struct i2c_client *i2c)
+{
+	struct regmap *regmap;
+	struct regulator_dev *rdev;
+	struct regulator_config regulator_cfg = {};
+	int i;
+
+	regmap = devm_regmap_init_i2c(i2c, &rtq2134_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(&i2c->dev, "Failed to allocate regmap\n");
+		return PTR_ERR(regmap);
+	}
+
+	regulator_cfg.dev = &i2c->dev;
+	regulator_cfg.regmap = regmap;
+	for (i = 0; i < ARRAY_SIZE(rtq2134_regulator_descs); i++) {
+		rdev = devm_regulator_register(&i2c->dev,
+					       &rtq2134_regulator_descs[i].desc,
+					       &regulator_cfg);
+		if (IS_ERR(rdev)) {
+			dev_err(&i2c->dev, "Failed to init %d regulator\n", i);
+			return PTR_ERR(rdev);
+		}
+	}
+
+	return 0;
+}
+
+static const struct of_device_id __maybe_unused rtq2134_device_tables[] = {
+	{ .compatible = "richtek,rtq2134", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rtq2134_device_tables);
+
+static struct i2c_driver rtq2134_driver = {
+	.driver = {
+		.name = "rtq2134",
+		.of_match_table = rtq2134_device_tables,
+	},
+	.probe_new = rtq2134_probe,
+};
+module_i2c_driver(rtq2134_driver);
+
+MODULE_AUTHOR("ChiYuan Huang <cy_huang@richtek.com>");
+MODULE_DESCRIPTION("Richtek RTQ2134 Regulator Driver");
+MODULE_LICENSE("GPL v2");