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, 679 insertions, 0 deletions

diff --git a/drivers/iio/light/vcnl4035.c b/drivers/iio/light/vcnl4035.c
new file mode 100644
index 000000000..84148b944
--- /dev/null
+++ b/drivers/iio/light/vcnl4035.c
@@ -0,0 +1,679 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * VCNL4035 Ambient Light and Proximity Sensor - 7-bit I2C slave address 0x60
+ *
+ * Copyright (c) 2018, DENX Software Engineering GmbH
+ * Author: Parthiban Nallathambi <pn@denx.de>
+ *
+ * TODO: Proximity
+ */
+#include <linux/bitops.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+
+#include <linux/iio/buffer.h>
+#include <linux/iio/events.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define VCNL4035_DRV_NAME	"vcnl4035"
+#define VCNL4035_IRQ_NAME	"vcnl4035_event"
+#define VCNL4035_REGMAP_NAME	"vcnl4035_regmap"
+
+/* Device registers */
+#define VCNL4035_ALS_CONF	0x00
+#define VCNL4035_ALS_THDH	0x01
+#define VCNL4035_ALS_THDL	0x02
+#define VCNL4035_ALS_DATA	0x0B
+#define VCNL4035_WHITE_DATA	0x0C
+#define VCNL4035_INT_FLAG	0x0D
+#define VCNL4035_DEV_ID		0x0E
+
+/* Register masks */
+#define VCNL4035_MODE_ALS_MASK		BIT(0)
+#define VCNL4035_MODE_ALS_WHITE_CHAN	BIT(8)
+#define VCNL4035_MODE_ALS_INT_MASK	BIT(1)
+#define VCNL4035_ALS_IT_MASK		GENMASK(7, 5)
+#define VCNL4035_ALS_PERS_MASK		GENMASK(3, 2)
+#define VCNL4035_INT_ALS_IF_H_MASK	BIT(12)
+#define VCNL4035_INT_ALS_IF_L_MASK	BIT(13)
+
+/* Default values */
+#define VCNL4035_MODE_ALS_ENABLE	BIT(0)
+#define VCNL4035_MODE_ALS_DISABLE	0x00
+#define VCNL4035_MODE_ALS_INT_ENABLE	BIT(1)
+#define VCNL4035_MODE_ALS_INT_DISABLE	0
+#define VCNL4035_DEV_ID_VAL		0x80
+#define VCNL4035_ALS_IT_DEFAULT		0x01
+#define VCNL4035_ALS_PERS_DEFAULT	0x00
+#define VCNL4035_ALS_THDH_DEFAULT	5000
+#define VCNL4035_ALS_THDL_DEFAULT	100
+#define VCNL4035_SLEEP_DELAY_MS		2000
+
+struct vcnl4035_data {
+	struct i2c_client *client;
+	struct regmap *regmap;
+	unsigned int als_it_val;
+	unsigned int als_persistence;
+	unsigned int als_thresh_low;
+	unsigned int als_thresh_high;
+	struct iio_trigger *drdy_trigger0;
+};
+
+static inline bool vcnl4035_is_triggered(struct vcnl4035_data *data)
+{
+	int ret;
+	int reg;
+
+	ret = regmap_read(data->regmap, VCNL4035_INT_FLAG, &reg);
+	if (ret < 0)
+		return false;
+
+	return !!(reg &
+		(VCNL4035_INT_ALS_IF_H_MASK | VCNL4035_INT_ALS_IF_L_MASK));
+}
+
+static irqreturn_t vcnl4035_drdy_irq_thread(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+
+	if (vcnl4035_is_triggered(data)) {
+		iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
+							0,
+							IIO_EV_TYPE_THRESH,
+							IIO_EV_DIR_EITHER),
+				iio_get_time_ns(indio_dev));
+		iio_trigger_poll_chained(data->drdy_trigger0);
+		return IRQ_HANDLED;
+	}
+
+	return IRQ_NONE;
+}
+
+/* Triggered buffer */
+static irqreturn_t vcnl4035_trigger_consumer_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	/* Ensure naturally aligned timestamp */
+	u8 buffer[ALIGN(sizeof(u16), sizeof(s64)) + sizeof(s64)]  __aligned(8);
+	int ret;
+
+	ret = regmap_read(data->regmap, VCNL4035_ALS_DATA, (int *)buffer);
+	if (ret < 0) {
+		dev_err(&data->client->dev,
+			"Trigger consumer can't read from sensor.\n");
+		goto fail_read;
+	}
+	iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+					iio_get_time_ns(indio_dev));
+
+fail_read:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static int vcnl4035_als_drdy_set_state(struct iio_trigger *trigger,
+					bool enable_drdy)
+{
+	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trigger);
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	int val = enable_drdy ? VCNL4035_MODE_ALS_INT_ENABLE :
+					VCNL4035_MODE_ALS_INT_DISABLE;
+
+	return regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+				 VCNL4035_MODE_ALS_INT_MASK,
+				 val);
+}
+
+static const struct iio_trigger_ops vcnl4035_trigger_ops = {
+	.validate_device = iio_trigger_validate_own_device,
+	.set_trigger_state = vcnl4035_als_drdy_set_state,
+};
+
+static int vcnl4035_set_pm_runtime_state(struct vcnl4035_data *data, bool on)
+{
+	int ret;
+	struct device *dev = &data->client->dev;
+
+	if (on) {
+		ret = pm_runtime_resume_and_get(dev);
+	} else {
+		pm_runtime_mark_last_busy(dev);
+		ret = pm_runtime_put_autosuspend(dev);
+	}
+
+	return ret;
+}
+
+/*
+ *	Device IT	INT Time (ms)	Scale (lux/step)
+ *	000		50		0.064
+ *	001		100		0.032
+ *	010		200		0.016
+ *	100		400		0.008
+ *	101 - 111	800		0.004
+ * Values are proportional, so ALS INT is selected for input due to
+ * simplicity reason. Integration time value and scaling is
+ * calculated based on device INT value
+ *
+ * Raw value needs to be scaled using ALS steps
+ */
+static int vcnl4035_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan, int *val,
+			    int *val2, long mask)
+{
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	int ret;
+	int raw_data;
+	unsigned int reg;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = vcnl4035_set_pm_runtime_state(data, true);
+		if  (ret < 0)
+			return ret;
+
+		ret = iio_device_claim_direct_mode(indio_dev);
+		if (!ret) {
+			if (chan->channel)
+				reg = VCNL4035_ALS_DATA;
+			else
+				reg = VCNL4035_WHITE_DATA;
+			ret = regmap_read(data->regmap, reg, &raw_data);
+			iio_device_release_direct_mode(indio_dev);
+			if (!ret) {
+				*val = raw_data;
+				ret = IIO_VAL_INT;
+			}
+		}
+		vcnl4035_set_pm_runtime_state(data, false);
+		return ret;
+	case IIO_CHAN_INFO_INT_TIME:
+		*val = 50;
+		if (data->als_it_val)
+			*val = data->als_it_val * 100;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 64;
+		if (!data->als_it_val)
+			*val2 = 1000;
+		else
+			*val2 = data->als_it_val * 2 * 1000;
+		return IIO_VAL_FRACTIONAL;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int vcnl4035_write_raw(struct iio_dev *indio_dev,
+				struct iio_chan_spec const *chan,
+				int val, int val2, long mask)
+{
+	int ret;
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_INT_TIME:
+		if (val <= 0 || val > 800)
+			return -EINVAL;
+
+		ret = vcnl4035_set_pm_runtime_state(data, true);
+		if  (ret < 0)
+			return ret;
+
+		ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+					 VCNL4035_ALS_IT_MASK,
+					 val / 100);
+		if (!ret)
+			data->als_it_val = val / 100;
+
+		vcnl4035_set_pm_runtime_state(data, false);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+/* No direct ABI for persistence and threshold, so eventing */
+static int vcnl4035_read_thresh(struct iio_dev *indio_dev,
+		const struct iio_chan_spec *chan, enum iio_event_type type,
+		enum iio_event_direction dir, enum iio_event_info info,
+		int *val, int *val2)
+{
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		switch (dir) {
+		case IIO_EV_DIR_RISING:
+			*val = data->als_thresh_high;
+			return IIO_VAL_INT;
+		case IIO_EV_DIR_FALLING:
+			*val = data->als_thresh_low;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case IIO_EV_INFO_PERIOD:
+		*val = data->als_persistence;
+		return IIO_VAL_INT;
+	default:
+		return -EINVAL;
+	}
+
+}
+
+static int vcnl4035_write_thresh(struct iio_dev *indio_dev,
+		const struct iio_chan_spec *chan, enum iio_event_type type,
+		enum iio_event_direction dir, enum iio_event_info info, int val,
+		int val2)
+{
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		/* 16 bit threshold range 0 - 65535 */
+		if (val < 0 || val > 65535)
+			return -EINVAL;
+		if (dir == IIO_EV_DIR_RISING) {
+			if (val < data->als_thresh_low)
+				return -EINVAL;
+			ret = regmap_write(data->regmap, VCNL4035_ALS_THDH,
+					   val);
+			if (ret)
+				return ret;
+			data->als_thresh_high = val;
+		} else {
+			if (val > data->als_thresh_high)
+				return -EINVAL;
+			ret = regmap_write(data->regmap, VCNL4035_ALS_THDL,
+					   val);
+			if (ret)
+				return ret;
+			data->als_thresh_low = val;
+		}
+		return ret;
+	case IIO_EV_INFO_PERIOD:
+		/* allow only 1 2 4 8 as persistence value */
+		if (val < 0 || val > 8 || hweight8(val) != 1)
+			return -EINVAL;
+		ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+					 VCNL4035_ALS_PERS_MASK, val);
+		if (!ret)
+			data->als_persistence = val;
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static IIO_CONST_ATTR_INT_TIME_AVAIL("50 100 200 400 800");
+
+static struct attribute *vcnl4035_attributes[] = {
+	&iio_const_attr_integration_time_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group vcnl4035_attribute_group = {
+	.attrs = vcnl4035_attributes,
+};
+
+static const struct iio_info vcnl4035_info = {
+	.read_raw		= vcnl4035_read_raw,
+	.write_raw		= vcnl4035_write_raw,
+	.read_event_value	= vcnl4035_read_thresh,
+	.write_event_value	= vcnl4035_write_thresh,
+	.attrs			= &vcnl4035_attribute_group,
+};
+
+static const struct iio_event_spec vcnl4035_event_spec[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_PERIOD),
+	},
+};
+
+enum vcnl4035_scan_index_order {
+	VCNL4035_CHAN_INDEX_LIGHT,
+	VCNL4035_CHAN_INDEX_WHITE_LED,
+};
+
+static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
+	.validate_scan_mask = &iio_validate_scan_mask_onehot,
+};
+
+static const struct iio_chan_spec vcnl4035_channels[] = {
+	{
+		.type = IIO_LIGHT,
+		.channel = 0,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				BIT(IIO_CHAN_INFO_INT_TIME) |
+				BIT(IIO_CHAN_INFO_SCALE),
+		.event_spec = vcnl4035_event_spec,
+		.num_event_specs = ARRAY_SIZE(vcnl4035_event_spec),
+		.scan_index = VCNL4035_CHAN_INDEX_LIGHT,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+	},
+	{
+		.type = IIO_INTENSITY,
+		.channel = 1,
+		.modified = 1,
+		.channel2 = IIO_MOD_LIGHT_BOTH,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.scan_index = VCNL4035_CHAN_INDEX_WHITE_LED,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+	},
+};
+
+static int vcnl4035_set_als_power_state(struct vcnl4035_data *data, u8 status)
+{
+	return regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+					VCNL4035_MODE_ALS_MASK,
+					status);
+}
+
+static int vcnl4035_init(struct vcnl4035_data *data)
+{
+	int ret;
+	int id;
+
+	ret = regmap_read(data->regmap, VCNL4035_DEV_ID, &id);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "Failed to read DEV_ID register\n");
+		return ret;
+	}
+
+	if (id != VCNL4035_DEV_ID_VAL) {
+		dev_err(&data->client->dev, "Wrong id, got %x, expected %x\n",
+			id, VCNL4035_DEV_ID_VAL);
+		return -ENODEV;
+	}
+
+	ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_ENABLE);
+	if (ret < 0)
+		return ret;
+
+	/* ALS white channel enable */
+	ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+				 VCNL4035_MODE_ALS_WHITE_CHAN,
+				 1);
+	if (ret) {
+		dev_err(&data->client->dev, "set white channel enable %d\n",
+			ret);
+		return ret;
+	}
+
+	/* set default integration time - 100 ms for ALS */
+	ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+				 VCNL4035_ALS_IT_MASK,
+				 VCNL4035_ALS_IT_DEFAULT);
+	if (ret) {
+		dev_err(&data->client->dev, "set default ALS IT returned %d\n",
+			ret);
+		return ret;
+	}
+	data->als_it_val = VCNL4035_ALS_IT_DEFAULT;
+
+	/* set default persistence time - 1 for ALS */
+	ret = regmap_update_bits(data->regmap, VCNL4035_ALS_CONF,
+				 VCNL4035_ALS_PERS_MASK,
+				 VCNL4035_ALS_PERS_DEFAULT);
+	if (ret) {
+		dev_err(&data->client->dev, "set default PERS returned %d\n",
+			ret);
+		return ret;
+	}
+	data->als_persistence = VCNL4035_ALS_PERS_DEFAULT;
+
+	/* set default HIGH threshold for ALS */
+	ret = regmap_write(data->regmap, VCNL4035_ALS_THDH,
+				VCNL4035_ALS_THDH_DEFAULT);
+	if (ret) {
+		dev_err(&data->client->dev, "set default THDH returned %d\n",
+			ret);
+		return ret;
+	}
+	data->als_thresh_high = VCNL4035_ALS_THDH_DEFAULT;
+
+	/* set default LOW threshold for ALS */
+	ret = regmap_write(data->regmap, VCNL4035_ALS_THDL,
+				VCNL4035_ALS_THDL_DEFAULT);
+	if (ret) {
+		dev_err(&data->client->dev, "set default THDL returned %d\n",
+			ret);
+		return ret;
+	}
+	data->als_thresh_low = VCNL4035_ALS_THDL_DEFAULT;
+
+	return 0;
+}
+
+static bool vcnl4035_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case VCNL4035_ALS_CONF:
+	case VCNL4035_DEV_ID:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static const struct regmap_config vcnl4035_regmap_config = {
+	.name		= VCNL4035_REGMAP_NAME,
+	.reg_bits	= 8,
+	.val_bits	= 16,
+	.max_register	= VCNL4035_DEV_ID,
+	.cache_type	= REGCACHE_RBTREE,
+	.volatile_reg	= vcnl4035_is_volatile_reg,
+	.val_format_endian = REGMAP_ENDIAN_LITTLE,
+};
+
+static int vcnl4035_probe_trigger(struct iio_dev *indio_dev)
+{
+	int ret;
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+
+	data->drdy_trigger0 = devm_iio_trigger_alloc(
+			indio_dev->dev.parent,
+			"%s-dev%d", indio_dev->name, iio_device_id(indio_dev));
+	if (!data->drdy_trigger0)
+		return -ENOMEM;
+
+	data->drdy_trigger0->ops = &vcnl4035_trigger_ops;
+	iio_trigger_set_drvdata(data->drdy_trigger0, indio_dev);
+	ret = devm_iio_trigger_register(indio_dev->dev.parent,
+					data->drdy_trigger0);
+	if (ret) {
+		dev_err(&data->client->dev, "iio trigger register failed\n");
+		return ret;
+	}
+
+	/* Trigger setup */
+	ret = devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev,
+					NULL, vcnl4035_trigger_consumer_handler,
+					&iio_triggered_buffer_setup_ops);
+	if (ret < 0) {
+		dev_err(&data->client->dev, "iio triggered buffer setup failed\n");
+		return ret;
+	}
+
+	/* IRQ to trigger mapping */
+	ret = devm_request_threaded_irq(&data->client->dev, data->client->irq,
+			NULL, vcnl4035_drdy_irq_thread,
+			IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+			VCNL4035_IRQ_NAME, indio_dev);
+	if (ret < 0)
+		dev_err(&data->client->dev, "request irq %d for trigger0 failed\n",
+				data->client->irq);
+	return ret;
+}
+
+static int vcnl4035_probe(struct i2c_client *client)
+{
+	struct vcnl4035_data *data;
+	struct iio_dev *indio_dev;
+	struct regmap *regmap;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	regmap = devm_regmap_init_i2c(client, &vcnl4035_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(&client->dev, "regmap_init failed!\n");
+		return PTR_ERR(regmap);
+	}
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	data->regmap = regmap;
+
+	indio_dev->info = &vcnl4035_info;
+	indio_dev->name = VCNL4035_DRV_NAME;
+	indio_dev->channels = vcnl4035_channels;
+	indio_dev->num_channels = ARRAY_SIZE(vcnl4035_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = vcnl4035_init(data);
+	if (ret < 0) {
+		dev_err(&client->dev, "vcnl4035 chip init failed\n");
+		return ret;
+	}
+
+	if (client->irq > 0) {
+		ret = vcnl4035_probe_trigger(indio_dev);
+		if (ret < 0) {
+			dev_err(&client->dev, "vcnl4035 unable init trigger\n");
+			goto fail_poweroff;
+		}
+	}
+
+	ret = pm_runtime_set_active(&client->dev);
+	if (ret < 0)
+		goto fail_poweroff;
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto fail_poweroff;
+
+	pm_runtime_enable(&client->dev);
+	pm_runtime_set_autosuspend_delay(&client->dev, VCNL4035_SLEEP_DELAY_MS);
+	pm_runtime_use_autosuspend(&client->dev);
+
+	return 0;
+
+fail_poweroff:
+	vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_DISABLE);
+	return ret;
+}
+
+static void vcnl4035_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	int ret;
+
+	pm_runtime_dont_use_autosuspend(&client->dev);
+	pm_runtime_disable(&client->dev);
+	iio_device_unregister(indio_dev);
+	pm_runtime_set_suspended(&client->dev);
+
+	ret = vcnl4035_set_als_power_state(iio_priv(indio_dev),
+					   VCNL4035_MODE_ALS_DISABLE);
+	if (ret)
+		dev_warn(&client->dev, "Failed to put device into standby (%pe)\n",
+			 ERR_PTR(ret));
+}
+
+static int vcnl4035_runtime_suspend(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	int ret;
+
+	ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_DISABLE);
+	regcache_mark_dirty(data->regmap);
+
+	return ret;
+}
+
+static int vcnl4035_runtime_resume(struct device *dev)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
+	struct vcnl4035_data *data = iio_priv(indio_dev);
+	int ret;
+
+	regcache_sync(data->regmap);
+	ret = vcnl4035_set_als_power_state(data, VCNL4035_MODE_ALS_ENABLE);
+	if (ret < 0)
+		return ret;
+
+	/* wait for 1 ALS integration cycle */
+	msleep(data->als_it_val * 100);
+
+	return 0;
+}
+
+static DEFINE_RUNTIME_DEV_PM_OPS(vcnl4035_pm_ops, vcnl4035_runtime_suspend,
+				 vcnl4035_runtime_resume, NULL);
+
+static const struct i2c_device_id vcnl4035_id[] = {
+	{ "vcnl4035", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, vcnl4035_id);
+
+static const struct of_device_id vcnl4035_of_match[] = {
+	{ .compatible = "vishay,vcnl4035", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, vcnl4035_of_match);
+
+static struct i2c_driver vcnl4035_driver = {
+	.driver = {
+		.name   = VCNL4035_DRV_NAME,
+		.pm	= pm_ptr(&vcnl4035_pm_ops),
+		.of_match_table = vcnl4035_of_match,
+	},
+	.probe_new = vcnl4035_probe,
+	.remove	= vcnl4035_remove,
+	.id_table = vcnl4035_id,
+};
+
+module_i2c_driver(vcnl4035_driver);
+
+MODULE_AUTHOR("Parthiban Nallathambi <pn@denx.de>");
+MODULE_DESCRIPTION("VCNL4035 Ambient Light Sensor driver");
+MODULE_LICENSE("GPL v2");