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, 482 insertions, 0 deletions

diff --git a/drivers/media/spi/gs1662.c b/drivers/media/spi/gs1662.c
new file mode 100644
index 000000000..75c21a93e
--- /dev/null
+++ b/drivers/media/spi/gs1662.c
@@ -0,0 +1,482 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * GS1662 device registration.
+ *
+ * Copyright (C) 2015-2016 Nexvision
+ * Author: Charles-Antoine Couret <charles-antoine.couret@nexvision.fr>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spi/spi.h>
+#include <linux/platform_device.h>
+#include <linux/ctype.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/module.h>
+
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-subdev.h>
+#include <media/v4l2-dv-timings.h>
+#include <linux/v4l2-dv-timings.h>
+
+#define REG_STATUS			0x04
+#define REG_FORCE_FMT			0x06
+#define REG_LINES_PER_FRAME		0x12
+#define REG_WORDS_PER_LINE		0x13
+#define REG_WORDS_PER_ACT_LINE		0x14
+#define REG_ACT_LINES_PER_FRAME	0x15
+
+#define MASK_H_LOCK			0x001
+#define MASK_V_LOCK			0x002
+#define MASK_STD_LOCK			0x004
+#define MASK_FORCE_STD			0x020
+#define MASK_STD_STATUS		0x3E0
+
+#define GS_WIDTH_MIN			720
+#define GS_WIDTH_MAX			2048
+#define GS_HEIGHT_MIN			487
+#define GS_HEIGHT_MAX			1080
+#define GS_PIXELCLOCK_MIN		10519200
+#define GS_PIXELCLOCK_MAX		74250000
+
+struct gs {
+	struct spi_device *pdev;
+	struct v4l2_subdev sd;
+	struct v4l2_dv_timings current_timings;
+	int enabled;
+};
+
+struct gs_reg_fmt {
+	u16 reg_value;
+	struct v4l2_dv_timings format;
+};
+
+struct gs_reg_fmt_custom {
+	u16 reg_value;
+	__u32 width;
+	__u32 height;
+	__u64 pixelclock;
+	__u32 interlaced;
+};
+
+static const struct spi_device_id gs_id[] = {
+	{ "gs1662", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, gs_id);
+
+static const struct v4l2_dv_timings fmt_cap[] = {
+	V4L2_DV_BT_SDI_720X487I60,
+	V4L2_DV_BT_CEA_720X576P50,
+	V4L2_DV_BT_CEA_1280X720P24,
+	V4L2_DV_BT_CEA_1280X720P25,
+	V4L2_DV_BT_CEA_1280X720P30,
+	V4L2_DV_BT_CEA_1280X720P50,
+	V4L2_DV_BT_CEA_1280X720P60,
+	V4L2_DV_BT_CEA_1920X1080P24,
+	V4L2_DV_BT_CEA_1920X1080P25,
+	V4L2_DV_BT_CEA_1920X1080P30,
+	V4L2_DV_BT_CEA_1920X1080I50,
+	V4L2_DV_BT_CEA_1920X1080I60,
+};
+
+static const struct gs_reg_fmt reg_fmt[] = {
+	{ 0x00, V4L2_DV_BT_CEA_1280X720P60 },
+	{ 0x01, V4L2_DV_BT_CEA_1280X720P60 },
+	{ 0x02, V4L2_DV_BT_CEA_1280X720P30 },
+	{ 0x03, V4L2_DV_BT_CEA_1280X720P30 },
+	{ 0x04, V4L2_DV_BT_CEA_1280X720P50 },
+	{ 0x05, V4L2_DV_BT_CEA_1280X720P50 },
+	{ 0x06, V4L2_DV_BT_CEA_1280X720P25 },
+	{ 0x07, V4L2_DV_BT_CEA_1280X720P25 },
+	{ 0x08, V4L2_DV_BT_CEA_1280X720P24 },
+	{ 0x09, V4L2_DV_BT_CEA_1280X720P24 },
+	{ 0x0A, V4L2_DV_BT_CEA_1920X1080I60 },
+	{ 0x0B, V4L2_DV_BT_CEA_1920X1080P30 },
+
+	/* Default value: keep this field before 0xC */
+	{ 0x14, V4L2_DV_BT_CEA_1920X1080I50 },
+	{ 0x0C, V4L2_DV_BT_CEA_1920X1080I50 },
+	{ 0x0D, V4L2_DV_BT_CEA_1920X1080P25 },
+	{ 0x0E, V4L2_DV_BT_CEA_1920X1080P25 },
+	{ 0x10, V4L2_DV_BT_CEA_1920X1080P24 },
+	{ 0x12, V4L2_DV_BT_CEA_1920X1080P24 },
+	{ 0x16, V4L2_DV_BT_SDI_720X487I60 },
+	{ 0x19, V4L2_DV_BT_SDI_720X487I60 },
+	{ 0x18, V4L2_DV_BT_CEA_720X576P50 },
+	{ 0x1A, V4L2_DV_BT_CEA_720X576P50 },
+
+	/* Implement following timings before enable it.
+	 * Because of we don't have access to these theoretical timings yet.
+	 * Workaround: use functions to get and set registers for these formats.
+	 */
+#if 0
+	{ 0x0F, V4L2_DV_BT_XXX_1920X1080I25 }, /* SMPTE 274M */
+	{ 0x11, V4L2_DV_BT_XXX_1920X1080I24 }, /* SMPTE 274M */
+	{ 0x13, V4L2_DV_BT_XXX_1920X1080I25 }, /* SMPTE 274M */
+	{ 0x15, V4L2_DV_BT_XXX_1920X1035I60 }, /* SMPTE 260M */
+	{ 0x17, V4L2_DV_BT_SDI_720X507I60 }, /* SMPTE 125M */
+	{ 0x1B, V4L2_DV_BT_SDI_720X507I60 }, /* SMPTE 125M */
+	{ 0x1C, V4L2_DV_BT_XXX_2048X1080P25 }, /* SMPTE 428.1M */
+#endif
+};
+
+static const struct v4l2_dv_timings_cap gs_timings_cap = {
+	.type = V4L2_DV_BT_656_1120,
+	/* keep this initialization for compatibility with GCC < 4.4.6 */
+	.reserved = { 0 },
+	V4L2_INIT_BT_TIMINGS(GS_WIDTH_MIN, GS_WIDTH_MAX, GS_HEIGHT_MIN,
+			     GS_HEIGHT_MAX, GS_PIXELCLOCK_MIN,
+			     GS_PIXELCLOCK_MAX,
+			     V4L2_DV_BT_STD_CEA861 | V4L2_DV_BT_STD_SDI,
+			     V4L2_DV_BT_CAP_PROGRESSIVE
+			     | V4L2_DV_BT_CAP_INTERLACED)
+};
+
+static int gs_read_register(struct spi_device *spi, u16 addr, u16 *value)
+{
+	int ret;
+	u16 buf_addr = (0x8000 | (0x0FFF & addr));
+	u16 buf_value = 0;
+	struct spi_message msg;
+	struct spi_transfer tx[] = {
+		{
+			.tx_buf = &buf_addr,
+			.len = 2,
+			.delay = {
+				.value = 1,
+				.unit = SPI_DELAY_UNIT_USECS
+			},
+		}, {
+			.rx_buf = &buf_value,
+			.len = 2,
+			.delay = {
+				.value = 1,
+				.unit = SPI_DELAY_UNIT_USECS
+			},
+		},
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&tx[0], &msg);
+	spi_message_add_tail(&tx[1], &msg);
+	ret = spi_sync(spi, &msg);
+
+	*value = buf_value;
+
+	return ret;
+}
+
+static int gs_write_register(struct spi_device *spi, u16 addr, u16 value)
+{
+	int ret;
+	u16 buf_addr = addr;
+	u16 buf_value = value;
+	struct spi_message msg;
+	struct spi_transfer tx[] = {
+		{
+			.tx_buf = &buf_addr,
+			.len = 2,
+			.delay = {
+				.value = 1,
+				.unit = SPI_DELAY_UNIT_USECS
+			},
+		}, {
+			.tx_buf = &buf_value,
+			.len = 2,
+			.delay = {
+				.value = 1,
+				.unit = SPI_DELAY_UNIT_USECS
+			},
+		},
+	};
+
+	spi_message_init(&msg);
+	spi_message_add_tail(&tx[0], &msg);
+	spi_message_add_tail(&tx[1], &msg);
+	ret = spi_sync(spi, &msg);
+
+	return ret;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int gs_g_register(struct v4l2_subdev *sd,
+		  struct v4l2_dbg_register *reg)
+{
+	struct spi_device *spi = v4l2_get_subdevdata(sd);
+	u16 val;
+	int ret;
+
+	ret = gs_read_register(spi, reg->reg & 0xFFFF, &val);
+	reg->val = val;
+	reg->size = 2;
+	return ret;
+}
+
+static int gs_s_register(struct v4l2_subdev *sd,
+		  const struct v4l2_dbg_register *reg)
+{
+	struct spi_device *spi = v4l2_get_subdevdata(sd);
+
+	return gs_write_register(spi, reg->reg & 0xFFFF, reg->val & 0xFFFF);
+}
+#endif
+
+static int gs_status_format(u16 status, struct v4l2_dv_timings *timings)
+{
+	int std = (status & MASK_STD_STATUS) >> 5;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(reg_fmt); i++) {
+		if (reg_fmt[i].reg_value == std) {
+			*timings = reg_fmt[i].format;
+			return 0;
+		}
+	}
+
+	return -ERANGE;
+}
+
+static u16 get_register_timings(struct v4l2_dv_timings *timings)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(reg_fmt); i++) {
+		if (v4l2_match_dv_timings(timings, &reg_fmt[i].format, 0,
+					  false))
+			return reg_fmt[i].reg_value | MASK_FORCE_STD;
+	}
+
+	return 0x0;
+}
+
+static inline struct gs *to_gs(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct gs, sd);
+}
+
+static int gs_s_dv_timings(struct v4l2_subdev *sd,
+		    struct v4l2_dv_timings *timings)
+{
+	struct gs *gs = to_gs(sd);
+	int reg_value;
+
+	reg_value = get_register_timings(timings);
+	if (reg_value == 0x0)
+		return -EINVAL;
+
+	gs->current_timings = *timings;
+	return 0;
+}
+
+static int gs_g_dv_timings(struct v4l2_subdev *sd,
+		    struct v4l2_dv_timings *timings)
+{
+	struct gs *gs = to_gs(sd);
+
+	*timings = gs->current_timings;
+	return 0;
+}
+
+static int gs_query_dv_timings(struct v4l2_subdev *sd,
+			struct v4l2_dv_timings *timings)
+{
+	struct gs *gs = to_gs(sd);
+	struct v4l2_dv_timings fmt;
+	u16 reg_value, i;
+	int ret;
+
+	if (gs->enabled)
+		return -EBUSY;
+
+	/*
+	 * Check if the component detect a line, a frame or something else
+	 * which looks like a video signal activity.
+	 */
+	for (i = 0; i < 4; i++) {
+		gs_read_register(gs->pdev, REG_LINES_PER_FRAME + i, &reg_value);
+		if (reg_value)
+			break;
+	}
+
+	/* If no register reports a video signal */
+	if (i >= 4)
+		return -ENOLINK;
+
+	gs_read_register(gs->pdev, REG_STATUS, &reg_value);
+	if (!(reg_value & MASK_H_LOCK) || !(reg_value & MASK_V_LOCK))
+		return -ENOLCK;
+	if (!(reg_value & MASK_STD_LOCK))
+		return -ERANGE;
+
+	ret = gs_status_format(reg_value, &fmt);
+
+	if (ret < 0)
+		return ret;
+
+	*timings = fmt;
+	return 0;
+}
+
+static int gs_enum_dv_timings(struct v4l2_subdev *sd,
+		       struct v4l2_enum_dv_timings *timings)
+{
+	if (timings->index >= ARRAY_SIZE(fmt_cap))
+		return -EINVAL;
+
+	if (timings->pad != 0)
+		return -EINVAL;
+
+	timings->timings = fmt_cap[timings->index];
+	return 0;
+}
+
+static int gs_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct gs *gs = to_gs(sd);
+	int reg_value;
+
+	if (gs->enabled == enable)
+		return 0;
+
+	gs->enabled = enable;
+
+	if (enable) {
+		/* To force the specific format */
+		reg_value = get_register_timings(&gs->current_timings);
+		return gs_write_register(gs->pdev, REG_FORCE_FMT, reg_value);
+	}
+
+	/* To renable auto-detection mode */
+	return gs_write_register(gs->pdev, REG_FORCE_FMT, 0x0);
+}
+
+static int gs_g_input_status(struct v4l2_subdev *sd, u32 *status)
+{
+	struct gs *gs = to_gs(sd);
+	u16 reg_value, i;
+	int ret;
+
+	/*
+	 * Check if the component detect a line, a frame or something else
+	 * which looks like a video signal activity.
+	 */
+	for (i = 0; i < 4; i++) {
+		ret = gs_read_register(gs->pdev,
+				       REG_LINES_PER_FRAME + i, &reg_value);
+		if (reg_value)
+			break;
+		if (ret) {
+			*status = V4L2_IN_ST_NO_POWER;
+			return ret;
+		}
+	}
+
+	/* If no register reports a video signal */
+	if (i >= 4)
+		*status |= V4L2_IN_ST_NO_SIGNAL;
+
+	ret = gs_read_register(gs->pdev, REG_STATUS, &reg_value);
+	if (!(reg_value & MASK_H_LOCK))
+		*status |=  V4L2_IN_ST_NO_H_LOCK;
+	if (!(reg_value & MASK_V_LOCK))
+		*status |=  V4L2_IN_ST_NO_V_LOCK;
+	if (!(reg_value & MASK_STD_LOCK))
+		*status |=  V4L2_IN_ST_NO_STD_LOCK;
+
+	return ret;
+}
+
+static int gs_dv_timings_cap(struct v4l2_subdev *sd,
+			     struct v4l2_dv_timings_cap *cap)
+{
+	if (cap->pad != 0)
+		return -EINVAL;
+
+	*cap = gs_timings_cap;
+	return 0;
+}
+
+/* V4L2 core operation handlers */
+static const struct v4l2_subdev_core_ops gs_core_ops = {
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register = gs_g_register,
+	.s_register = gs_s_register,
+#endif
+};
+
+static const struct v4l2_subdev_video_ops gs_video_ops = {
+	.s_dv_timings = gs_s_dv_timings,
+	.g_dv_timings = gs_g_dv_timings,
+	.s_stream = gs_s_stream,
+	.g_input_status = gs_g_input_status,
+	.query_dv_timings = gs_query_dv_timings,
+};
+
+static const struct v4l2_subdev_pad_ops gs_pad_ops = {
+	.enum_dv_timings = gs_enum_dv_timings,
+	.dv_timings_cap = gs_dv_timings_cap,
+};
+
+/* V4L2 top level operation handlers */
+static const struct v4l2_subdev_ops gs_ops = {
+	.core = &gs_core_ops,
+	.video = &gs_video_ops,
+	.pad = &gs_pad_ops,
+};
+
+static int gs_probe(struct spi_device *spi)
+{
+	int ret;
+	struct gs *gs;
+	struct v4l2_subdev *sd;
+
+	gs = devm_kzalloc(&spi->dev, sizeof(struct gs), GFP_KERNEL);
+	if (!gs)
+		return -ENOMEM;
+
+	gs->pdev = spi;
+	sd = &gs->sd;
+
+	spi->mode = SPI_MODE_0;
+	spi->irq = -1;
+	spi->max_speed_hz = 10000000;
+	spi->bits_per_word = 16;
+	ret = spi_setup(spi);
+	v4l2_spi_subdev_init(sd, spi, &gs_ops);
+
+	gs->current_timings = reg_fmt[0].format;
+	gs->enabled = 0;
+
+	/* Set H_CONFIG to SMPTE timings */
+	gs_write_register(spi, 0x0, 0x300);
+
+	return ret;
+}
+
+static void gs_remove(struct spi_device *spi)
+{
+	struct v4l2_subdev *sd = spi_get_drvdata(spi);
+
+	v4l2_device_unregister_subdev(sd);
+}
+
+static struct spi_driver gs_driver = {
+	.driver = {
+		.name		= "gs1662",
+	},
+
+	.probe		= gs_probe,
+	.remove		= gs_remove,
+	.id_table	= gs_id,
+};
+
+module_spi_driver(gs_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Charles-Antoine Couret <charles-antoine.couret@nexvision.fr>");
+MODULE_DESCRIPTION("Gennum GS1662 HD/SD-SDI Serializer driver");