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, 435 insertions, 0 deletions

diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
new file mode 100644
index 000000000..970f2a671
--- /dev/null
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -0,0 +1,435 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
+ * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
+ *
+ * Keypad controller driver for the SKE (Scroll Key Encoder) module used in
+ * the Nomadik 8815 and Ux500 platforms.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+
+#include <linux/platform_data/keypad-nomadik-ske.h>
+
+/* SKE_CR bits */
+#define SKE_KPMLT	(0x1 << 6)
+#define SKE_KPCN	(0x7 << 3)
+#define SKE_KPASEN	(0x1 << 2)
+#define SKE_KPASON	(0x1 << 7)
+
+/* SKE_IMSC bits */
+#define SKE_KPIMA	(0x1 << 2)
+
+/* SKE_ICR bits */
+#define SKE_KPICS	(0x1 << 3)
+#define SKE_KPICA	(0x1 << 2)
+
+/* SKE_RIS bits */
+#define SKE_KPRISA	(0x1 << 2)
+
+#define SKE_KEYPAD_ROW_SHIFT	3
+#define SKE_KPD_NUM_ROWS	8
+#define SKE_KPD_NUM_COLS	8
+
+/* keypad auto scan registers */
+#define SKE_ASR0	0x20
+#define SKE_ASR1	0x24
+#define SKE_ASR2	0x28
+#define SKE_ASR3	0x2C
+
+#define SKE_NUM_ASRX_REGISTERS	(4)
+#define	KEY_PRESSED_DELAY	10
+
+/**
+ * struct ske_keypad  - data structure used by keypad driver
+ * @irq:	irq no
+ * @reg_base:	ske registers base address
+ * @input:	pointer to input device object
+ * @board:	keypad platform device
+ * @keymap:	matrix scan code table for keycodes
+ * @clk:	clock structure pointer
+ * @pclk:	clock structure pointer
+ * @ske_keypad_lock: spinlock protecting the keypad read/writes
+ */
+struct ske_keypad {
+	int irq;
+	void __iomem *reg_base;
+	struct input_dev *input;
+	const struct ske_keypad_platform_data *board;
+	unsigned short keymap[SKE_KPD_NUM_ROWS * SKE_KPD_NUM_COLS];
+	struct clk *clk;
+	struct clk *pclk;
+	spinlock_t ske_keypad_lock;
+};
+
+static void ske_keypad_set_bits(struct ske_keypad *keypad, u16 addr,
+		u8 mask, u8 data)
+{
+	u32 ret;
+
+	spin_lock(&keypad->ske_keypad_lock);
+
+	ret = readl(keypad->reg_base + addr);
+	ret &= ~mask;
+	ret |= data;
+	writel(ret, keypad->reg_base + addr);
+
+	spin_unlock(&keypad->ske_keypad_lock);
+}
+
+/*
+ * ske_keypad_chip_init: init keypad controller configuration
+ *
+ * Enable Multi key press detection, auto scan mode
+ */
+static int __init ske_keypad_chip_init(struct ske_keypad *keypad)
+{
+	u32 value;
+	int timeout = keypad->board->debounce_ms;
+
+	/* check SKE_RIS to be 0 */
+	while ((readl(keypad->reg_base + SKE_RIS) != 0x00000000) && timeout--)
+		cpu_relax();
+
+	if (timeout == -1)
+		return -EINVAL;
+
+	/*
+	 * set debounce value
+	 * keypad dbounce is configured in DBCR[15:8]
+	 * dbounce value in steps of 32/32.768 ms
+	 */
+	spin_lock(&keypad->ske_keypad_lock);
+	value = readl(keypad->reg_base + SKE_DBCR);
+	value = value & 0xff;
+	value |= ((keypad->board->debounce_ms * 32000)/32768) << 8;
+	writel(value, keypad->reg_base + SKE_DBCR);
+	spin_unlock(&keypad->ske_keypad_lock);
+
+	/* enable multi key detection */
+	ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPMLT);
+
+	/*
+	 * set up the number of columns
+	 * KPCN[5:3] defines no. of keypad columns to be auto scanned
+	 */
+	value = (keypad->board->kcol - 1) << 3;
+	ske_keypad_set_bits(keypad, SKE_CR, SKE_KPCN, value);
+
+	/* clear keypad interrupt for auto(and pending SW) scans */
+	ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA | SKE_KPICS);
+
+	/* un-mask keypad interrupts */
+	ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+	/* enable automatic scan */
+	ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPASEN);
+
+	return 0;
+}
+
+static void ske_keypad_report(struct ske_keypad *keypad, u8 status, int col)
+{
+	int row = 0, code, pos;
+	struct input_dev *input = keypad->input;
+	u32 ske_ris;
+	int key_pressed;
+	int num_of_rows;
+
+	/* find out the row */
+	num_of_rows = hweight8(status);
+	do {
+		pos = __ffs(status);
+		row = pos;
+		status &= ~(1 << pos);
+
+		code = MATRIX_SCAN_CODE(row, col, SKE_KEYPAD_ROW_SHIFT);
+		ske_ris = readl(keypad->reg_base + SKE_RIS);
+		key_pressed = ske_ris & SKE_KPRISA;
+
+		input_event(input, EV_MSC, MSC_SCAN, code);
+		input_report_key(input, keypad->keymap[code], key_pressed);
+		input_sync(input);
+		num_of_rows--;
+	} while (num_of_rows);
+}
+
+static void ske_keypad_read_data(struct ske_keypad *keypad)
+{
+	u8 status;
+	int col = 0;
+	int ske_asr, i;
+
+	/*
+	 * Read the auto scan registers
+	 *
+	 * Each SKE_ASRx (x=0 to x=3) contains two row values.
+	 * lower byte contains row value for column 2*x,
+	 * upper byte contains row value for column 2*x + 1
+	 */
+	for (i = 0; i < SKE_NUM_ASRX_REGISTERS; i++) {
+		ske_asr = readl(keypad->reg_base + SKE_ASR0 + (4 * i));
+		if (!ske_asr)
+			continue;
+
+		/* now that ASRx is zero, find out the coloumn x and row y */
+		status = ske_asr & 0xff;
+		if (status) {
+			col = i * 2;
+			ske_keypad_report(keypad, status, col);
+		}
+		status = (ske_asr & 0xff00) >> 8;
+		if (status) {
+			col = (i * 2) + 1;
+			ske_keypad_report(keypad, status, col);
+		}
+	}
+}
+
+static irqreturn_t ske_keypad_irq(int irq, void *dev_id)
+{
+	struct ske_keypad *keypad = dev_id;
+	int timeout = keypad->board->debounce_ms;
+
+	/* disable auto scan interrupt; mask the interrupt generated */
+	ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
+	ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA);
+
+	while ((readl(keypad->reg_base + SKE_CR) & SKE_KPASON) && --timeout)
+		cpu_relax();
+
+	/* SKEx registers are stable and can be read */
+	ske_keypad_read_data(keypad);
+
+	/* wait until raw interrupt is clear */
+	while ((readl(keypad->reg_base + SKE_RIS)) && --timeout)
+		msleep(KEY_PRESSED_DELAY);
+
+	/* enable auto scan interrupts */
+	ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+	return IRQ_HANDLED;
+}
+
+static int __init ske_keypad_probe(struct platform_device *pdev)
+{
+	const struct ske_keypad_platform_data *plat =
+			dev_get_platdata(&pdev->dev);
+	struct ske_keypad *keypad;
+	struct input_dev *input;
+	struct resource *res;
+	int irq;
+	int error;
+
+	if (!plat) {
+		dev_err(&pdev->dev, "invalid keypad platform data\n");
+		return -EINVAL;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return -EINVAL;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "missing platform resources\n");
+		return -EINVAL;
+	}
+
+	keypad = kzalloc(sizeof(struct ske_keypad), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!keypad || !input) {
+		dev_err(&pdev->dev, "failed to allocate keypad memory\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	keypad->irq = irq;
+	keypad->board = plat;
+	keypad->input = input;
+	spin_lock_init(&keypad->ske_keypad_lock);
+
+	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
+		dev_err(&pdev->dev, "failed to request I/O memory\n");
+		error = -EBUSY;
+		goto err_free_mem;
+	}
+
+	keypad->reg_base = ioremap(res->start, resource_size(res));
+	if (!keypad->reg_base) {
+		dev_err(&pdev->dev, "failed to remap I/O memory\n");
+		error = -ENXIO;
+		goto err_free_mem_region;
+	}
+
+	keypad->pclk = clk_get(&pdev->dev, "apb_pclk");
+	if (IS_ERR(keypad->pclk)) {
+		dev_err(&pdev->dev, "failed to get pclk\n");
+		error = PTR_ERR(keypad->pclk);
+		goto err_iounmap;
+	}
+
+	keypad->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(keypad->clk)) {
+		dev_err(&pdev->dev, "failed to get clk\n");
+		error = PTR_ERR(keypad->clk);
+		goto err_pclk;
+	}
+
+	input->id.bustype = BUS_HOST;
+	input->name = "ux500-ske-keypad";
+	input->dev.parent = &pdev->dev;
+
+	error = matrix_keypad_build_keymap(plat->keymap_data, NULL,
+					   SKE_KPD_NUM_ROWS, SKE_KPD_NUM_COLS,
+					   keypad->keymap, input);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to build keymap\n");
+		goto err_clk;
+	}
+
+	input_set_capability(input, EV_MSC, MSC_SCAN);
+	if (!plat->no_autorepeat)
+		__set_bit(EV_REP, input->evbit);
+
+	error = clk_prepare_enable(keypad->pclk);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to prepare/enable pclk\n");
+		goto err_clk;
+	}
+
+	error = clk_prepare_enable(keypad->clk);
+	if (error) {
+		dev_err(&pdev->dev, "Failed to prepare/enable clk\n");
+		goto err_pclk_disable;
+	}
+
+
+	/* go through board initialization helpers */
+	if (keypad->board->init)
+		keypad->board->init();
+
+	error = ske_keypad_chip_init(keypad);
+	if (error) {
+		dev_err(&pdev->dev, "unable to init keypad hardware\n");
+		goto err_clk_disable;
+	}
+
+	error = request_threaded_irq(keypad->irq, NULL, ske_keypad_irq,
+				     IRQF_ONESHOT, "ske-keypad", keypad);
+	if (error) {
+		dev_err(&pdev->dev, "allocate irq %d failed\n", keypad->irq);
+		goto err_clk_disable;
+	}
+
+	error = input_register_device(input);
+	if (error) {
+		dev_err(&pdev->dev,
+				"unable to register input device: %d\n", error);
+		goto err_free_irq;
+	}
+
+	if (plat->wakeup_enable)
+		device_init_wakeup(&pdev->dev, true);
+
+	platform_set_drvdata(pdev, keypad);
+
+	return 0;
+
+err_free_irq:
+	free_irq(keypad->irq, keypad);
+err_clk_disable:
+	clk_disable_unprepare(keypad->clk);
+err_pclk_disable:
+	clk_disable_unprepare(keypad->pclk);
+err_clk:
+	clk_put(keypad->clk);
+err_pclk:
+	clk_put(keypad->pclk);
+err_iounmap:
+	iounmap(keypad->reg_base);
+err_free_mem_region:
+	release_mem_region(res->start, resource_size(res));
+err_free_mem:
+	input_free_device(input);
+	kfree(keypad);
+	return error;
+}
+
+static int ske_keypad_remove(struct platform_device *pdev)
+{
+	struct ske_keypad *keypad = platform_get_drvdata(pdev);
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	free_irq(keypad->irq, keypad);
+
+	input_unregister_device(keypad->input);
+
+	clk_disable_unprepare(keypad->clk);
+	clk_put(keypad->clk);
+
+	if (keypad->board->exit)
+		keypad->board->exit();
+
+	iounmap(keypad->reg_base);
+	release_mem_region(res->start, resource_size(res));
+	kfree(keypad);
+
+	return 0;
+}
+
+static int ske_keypad_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ske_keypad *keypad = platform_get_drvdata(pdev);
+	int irq = platform_get_irq(pdev, 0);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(irq);
+	else
+		ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
+
+	return 0;
+}
+
+static int ske_keypad_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ske_keypad *keypad = platform_get_drvdata(pdev);
+	int irq = platform_get_irq(pdev, 0);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(irq);
+	else
+		ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
+
+	return 0;
+}
+
+static DEFINE_SIMPLE_DEV_PM_OPS(ske_keypad_dev_pm_ops,
+				ske_keypad_suspend, ske_keypad_resume);
+
+static struct platform_driver ske_keypad_driver = {
+	.driver = {
+		.name = "nmk-ske-keypad",
+		.pm = pm_sleep_ptr(&ske_keypad_dev_pm_ops),
+	},
+	.remove = ske_keypad_remove,
+};
+
+module_platform_driver_probe(ske_keypad_driver, ske_keypad_probe);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Naveen Kumar <naveen.gaddipati@stericsson.com> / Sundar Iyer <sundar.iyer@stericsson.com>");
+MODULE_DESCRIPTION("Nomadik Scroll-Key-Encoder Keypad Driver");
+MODULE_ALIAS("platform:nomadik-ske-keypad");