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, 473 insertions, 0 deletions

diff --git a/drivers/media/tuners/tea5767.c b/drivers/media/tuners/tea5767.c
new file mode 100644
index 000000000..016d0d5ec
--- /dev/null
+++ b/drivers/media/tuners/tea5767.c
@@ -0,0 +1,473 @@
+// SPDX-License-Identifier: GPL-2.0
+// For Philips TEA5767 FM Chip used on some TV Cards like Prolink Pixelview
+// I2C address is always 0xC0.
+//
+// Copyright (c) 2005 Mauro Carvalho Chehab <mchehab@kernel.org>
+//
+// tea5767 autodetection thanks to Torsten Seeboth and Atsushi Nakagawa
+// from their contributions on DScaler.
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/videodev2.h>
+#include "tuner-i2c.h"
+#include "tea5767.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "enable verbose debug messages");
+
+/*****************************************************************************/
+
+struct tea5767_priv {
+	struct tuner_i2c_props	i2c_props;
+	u32			frequency;
+	struct tea5767_ctrl	ctrl;
+};
+
+/*****************************************************************************/
+
+/******************************
+ * Write mode register values *
+ ******************************/
+
+/* First register */
+#define TEA5767_MUTE		0x80	/* Mutes output */
+#define TEA5767_SEARCH		0x40	/* Activates station search */
+/* Bits 0-5 for divider MSB */
+
+/* Second register */
+/* Bits 0-7 for divider LSB */
+
+/* Third register */
+
+/* Station search from botton to up */
+#define TEA5767_SEARCH_UP	0x80
+
+/* Searches with ADC output = 10 */
+#define TEA5767_SRCH_HIGH_LVL	0x60
+
+/* Searches with ADC output = 10 */
+#define TEA5767_SRCH_MID_LVL	0x40
+
+/* Searches with ADC output = 5 */
+#define TEA5767_SRCH_LOW_LVL	0x20
+
+/* if on, div=4*(Frf+Fif)/Fref otherwise, div=4*(Frf-Fif)/Freq) */
+#define TEA5767_HIGH_LO_INJECT	0x10
+
+/* Disable stereo */
+#define TEA5767_MONO		0x08
+
+/* Disable right channel and turns to mono */
+#define TEA5767_MUTE_RIGHT	0x04
+
+/* Disable left channel and turns to mono */
+#define TEA5767_MUTE_LEFT	0x02
+
+#define TEA5767_PORT1_HIGH	0x01
+
+/* Fourth register */
+#define TEA5767_PORT2_HIGH	0x80
+/* Chips stops working. Only I2C bus remains on */
+#define TEA5767_STDBY		0x40
+
+/* Japan freq (76-108 MHz. If disabled, 87.5-108 MHz */
+#define TEA5767_JAPAN_BAND	0x20
+
+/* Unselected means 32.768 KHz freq as reference. Otherwise Xtal at 13 MHz */
+#define TEA5767_XTAL_32768	0x10
+
+/* Cuts weak signals */
+#define TEA5767_SOFT_MUTE	0x08
+
+/* Activates high cut control */
+#define TEA5767_HIGH_CUT_CTRL	0x04
+
+/* Activates stereo noise control */
+#define TEA5767_ST_NOISE_CTL	0x02
+
+/* If activate PORT 1 indicates SEARCH or else it is used as PORT1 */
+#define TEA5767_SRCH_IND	0x01
+
+/* Fifth register */
+
+/* By activating, it will use Xtal at 13 MHz as reference for divider */
+#define TEA5767_PLLREF_ENABLE	0x80
+
+/* By activating, deemphasis=50, or else, deemphasis of 50us */
+#define TEA5767_DEEMPH_75	0X40
+
+/*****************************
+ * Read mode register values *
+ *****************************/
+
+/* First register */
+#define TEA5767_READY_FLAG_MASK	0x80
+#define TEA5767_BAND_LIMIT_MASK	0X40
+/* Bits 0-5 for divider MSB after search or preset */
+
+/* Second register */
+/* Bits 0-7 for divider LSB after search or preset */
+
+/* Third register */
+#define TEA5767_STEREO_MASK	0x80
+#define TEA5767_IF_CNTR_MASK	0x7f
+
+/* Fourth register */
+#define TEA5767_ADC_LEVEL_MASK	0xf0
+
+/* should be 0 */
+#define TEA5767_CHIP_ID_MASK	0x0f
+
+/* Fifth register */
+/* Reserved for future extensions */
+#define TEA5767_RESERVED_MASK	0xff
+
+/*****************************************************************************/
+
+static void tea5767_status_dump(struct tea5767_priv *priv,
+				unsigned char *buffer)
+{
+	unsigned int div, frq;
+
+	if (TEA5767_READY_FLAG_MASK & buffer[0])
+		tuner_info("Ready Flag ON\n");
+	else
+		tuner_info("Ready Flag OFF\n");
+
+	if (TEA5767_BAND_LIMIT_MASK & buffer[0])
+		tuner_info("Tuner at band limit\n");
+	else
+		tuner_info("Tuner not at band limit\n");
+
+	div = ((buffer[0] & 0x3f) << 8) | buffer[1];
+
+	switch (priv->ctrl.xtal_freq) {
+	case TEA5767_HIGH_LO_13MHz:
+		frq = (div * 50000 - 700000 - 225000) / 4;	/* Freq in KHz */
+		break;
+	case TEA5767_LOW_LO_13MHz:
+		frq = (div * 50000 + 700000 + 225000) / 4;	/* Freq in KHz */
+		break;
+	case TEA5767_LOW_LO_32768:
+		frq = (div * 32768 + 700000 + 225000) / 4;	/* Freq in KHz */
+		break;
+	case TEA5767_HIGH_LO_32768:
+	default:
+		frq = (div * 32768 - 700000 - 225000) / 4;	/* Freq in KHz */
+		break;
+	}
+	buffer[0] = (div >> 8) & 0x3f;
+	buffer[1] = div & 0xff;
+
+	tuner_info("Frequency %d.%03d KHz (divider = 0x%04x)\n",
+		   frq / 1000, frq % 1000, div);
+
+	if (TEA5767_STEREO_MASK & buffer[2])
+		tuner_info("Stereo\n");
+	else
+		tuner_info("Mono\n");
+
+	tuner_info("IF Counter = %d\n", buffer[2] & TEA5767_IF_CNTR_MASK);
+
+	tuner_info("ADC Level = %d\n",
+		   (buffer[3] & TEA5767_ADC_LEVEL_MASK) >> 4);
+
+	tuner_info("Chip ID = %d\n", (buffer[3] & TEA5767_CHIP_ID_MASK));
+
+	tuner_info("Reserved = 0x%02x\n",
+		   (buffer[4] & TEA5767_RESERVED_MASK));
+}
+
+/* Freq should be specifyed at 62.5 Hz */
+static int set_radio_freq(struct dvb_frontend *fe,
+			  struct analog_parameters *params)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+	unsigned int frq = params->frequency;
+	unsigned char buffer[5];
+	unsigned div;
+	int rc;
+
+	tuner_dbg("radio freq = %d.%03d MHz\n", frq/16000,(frq/16)%1000);
+
+	buffer[2] = 0;
+
+	if (priv->ctrl.port1)
+		buffer[2] |= TEA5767_PORT1_HIGH;
+
+	if (params->audmode == V4L2_TUNER_MODE_MONO) {
+		tuner_dbg("TEA5767 set to mono\n");
+		buffer[2] |= TEA5767_MONO;
+	} else {
+		tuner_dbg("TEA5767 set to stereo\n");
+	}
+
+
+	buffer[3] = 0;
+
+	if (priv->ctrl.port2)
+		buffer[3] |= TEA5767_PORT2_HIGH;
+
+	if (priv->ctrl.high_cut)
+		buffer[3] |= TEA5767_HIGH_CUT_CTRL;
+
+	if (priv->ctrl.st_noise)
+		buffer[3] |= TEA5767_ST_NOISE_CTL;
+
+	if (priv->ctrl.soft_mute)
+		buffer[3] |= TEA5767_SOFT_MUTE;
+
+	if (priv->ctrl.japan_band)
+		buffer[3] |= TEA5767_JAPAN_BAND;
+
+	buffer[4] = 0;
+
+	if (priv->ctrl.deemph_75)
+		buffer[4] |= TEA5767_DEEMPH_75;
+
+	if (priv->ctrl.pllref)
+		buffer[4] |= TEA5767_PLLREF_ENABLE;
+
+
+	/* Rounds freq to next decimal value - for 62.5 KHz step */
+	/* frq = 20*(frq/16)+radio_frq[frq%16]; */
+
+	switch (priv->ctrl.xtal_freq) {
+	case TEA5767_HIGH_LO_13MHz:
+		tuner_dbg("radio HIGH LO inject xtal @ 13 MHz\n");
+		buffer[2] |= TEA5767_HIGH_LO_INJECT;
+		div = (frq * (4000 / 16) + 700000 + 225000 + 25000) / 50000;
+		break;
+	case TEA5767_LOW_LO_13MHz:
+		tuner_dbg("radio LOW LO inject xtal @ 13 MHz\n");
+
+		div = (frq * (4000 / 16) - 700000 - 225000 + 25000) / 50000;
+		break;
+	case TEA5767_LOW_LO_32768:
+		tuner_dbg("radio LOW LO inject xtal @ 32,768 MHz\n");
+		buffer[3] |= TEA5767_XTAL_32768;
+		/* const 700=4000*175 Khz - to adjust freq to right value */
+		div = ((frq * (4000 / 16) - 700000 - 225000) + 16384) >> 15;
+		break;
+	case TEA5767_HIGH_LO_32768:
+	default:
+		tuner_dbg("radio HIGH LO inject xtal @ 32,768 MHz\n");
+
+		buffer[2] |= TEA5767_HIGH_LO_INJECT;
+		buffer[3] |= TEA5767_XTAL_32768;
+		div = ((frq * (4000 / 16) + 700000 + 225000) + 16384) >> 15;
+		break;
+	}
+	buffer[0] = (div >> 8) & 0x3f;
+	buffer[1] = div & 0xff;
+
+	if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
+		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+
+	if (debug) {
+		if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5)))
+			tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+		else
+			tea5767_status_dump(priv, buffer);
+	}
+
+	priv->frequency = frq * 125 / 2;
+
+	return 0;
+}
+
+static int tea5767_read_status(struct dvb_frontend *fe, char *buffer)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+	int rc;
+
+	memset(buffer, 0, 5);
+	if (5 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props, buffer, 5))) {
+		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+static inline int tea5767_signal(struct dvb_frontend *fe, const char *buffer)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+
+	int signal = ((buffer[3] & TEA5767_ADC_LEVEL_MASK) << 8);
+
+	tuner_dbg("Signal strength: %d\n", signal);
+
+	return signal;
+}
+
+static inline int tea5767_stereo(struct dvb_frontend *fe, const char *buffer)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+
+	int stereo = buffer[2] & TEA5767_STEREO_MASK;
+
+	tuner_dbg("Radio ST GET = %02x\n", stereo);
+
+	return (stereo ? V4L2_TUNER_SUB_STEREO : 0);
+}
+
+static int tea5767_get_status(struct dvb_frontend *fe, u32 *status)
+{
+	unsigned char buffer[5];
+
+	*status = 0;
+
+	if (0 == tea5767_read_status(fe, buffer)) {
+		if (tea5767_signal(fe, buffer))
+			*status = TUNER_STATUS_LOCKED;
+		if (tea5767_stereo(fe, buffer))
+			*status |= TUNER_STATUS_STEREO;
+	}
+
+	return 0;
+}
+
+static int tea5767_get_rf_strength(struct dvb_frontend *fe, u16 *strength)
+{
+	unsigned char buffer[5];
+
+	*strength = 0;
+
+	if (0 == tea5767_read_status(fe, buffer))
+		*strength = tea5767_signal(fe, buffer);
+
+	return 0;
+}
+
+static int tea5767_standby(struct dvb_frontend *fe)
+{
+	unsigned char buffer[5];
+	struct tea5767_priv *priv = fe->tuner_priv;
+	unsigned div, rc;
+
+	div = (87500 * 4 + 700 + 225 + 25) / 50; /* Set frequency to 87.5 MHz */
+	buffer[0] = (div >> 8) & 0x3f;
+	buffer[1] = div & 0xff;
+	buffer[2] = TEA5767_PORT1_HIGH;
+	buffer[3] = TEA5767_PORT2_HIGH | TEA5767_HIGH_CUT_CTRL |
+		    TEA5767_ST_NOISE_CTL | TEA5767_JAPAN_BAND | TEA5767_STDBY;
+	buffer[4] = 0;
+
+	if (5 != (rc = tuner_i2c_xfer_send(&priv->i2c_props, buffer, 5)))
+		tuner_warn("i2c i/o error: rc == %d (should be 5)\n", rc);
+
+	return 0;
+}
+
+int tea5767_autodetection(struct i2c_adapter* i2c_adap, u8 i2c_addr)
+{
+	struct tuner_i2c_props i2c = { .adap = i2c_adap, .addr = i2c_addr };
+	unsigned char buffer[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+
+	int rc;
+
+	if ((rc = tuner_i2c_xfer_recv(&i2c, buffer, 7))< 5) {
+		pr_warn("It is not a TEA5767. Received %i bytes.\n", rc);
+		return -EINVAL;
+	}
+
+	/* If all bytes are the same then it's a TV tuner and not a tea5767 */
+	if (buffer[0] == buffer[1] && buffer[0] == buffer[2] &&
+	    buffer[0] == buffer[3] && buffer[0] == buffer[4]) {
+		pr_warn("All bytes are equal. It is not a TEA5767\n");
+		return -EINVAL;
+	}
+
+	/*  Status bytes:
+	 *  Byte 4: bit 3:1 : CI (Chip Identification) == 0
+	 *          bit 0   : internally set to 0
+	 *  Byte 5: bit 7:0 : == 0
+	 */
+	if (((buffer[3] & 0x0f) != 0x00) || (buffer[4] != 0x00)) {
+		pr_warn("Chip ID is not zero. It is not a TEA5767\n");
+		return -EINVAL;
+	}
+
+
+	return 0;
+}
+
+static void tea5767_release(struct dvb_frontend *fe)
+{
+	kfree(fe->tuner_priv);
+	fe->tuner_priv = NULL;
+}
+
+static int tea5767_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+	*frequency = priv->frequency;
+
+	return 0;
+}
+
+static int tea5767_set_config (struct dvb_frontend *fe, void *priv_cfg)
+{
+	struct tea5767_priv *priv = fe->tuner_priv;
+
+	memcpy(&priv->ctrl, priv_cfg, sizeof(priv->ctrl));
+
+	return 0;
+}
+
+static const struct dvb_tuner_ops tea5767_tuner_ops = {
+	.info = {
+		.name           = "tea5767", // Philips TEA5767HN FM Radio
+	},
+
+	.set_analog_params = set_radio_freq,
+	.set_config	   = tea5767_set_config,
+	.sleep             = tea5767_standby,
+	.release           = tea5767_release,
+	.get_frequency     = tea5767_get_frequency,
+	.get_status        = tea5767_get_status,
+	.get_rf_strength   = tea5767_get_rf_strength,
+};
+
+struct dvb_frontend *tea5767_attach(struct dvb_frontend *fe,
+				    struct i2c_adapter* i2c_adap,
+				    u8 i2c_addr)
+{
+	struct tea5767_priv *priv = NULL;
+
+	priv = kzalloc(sizeof(struct tea5767_priv), GFP_KERNEL);
+	if (priv == NULL)
+		return NULL;
+	fe->tuner_priv = priv;
+
+	priv->i2c_props.addr  = i2c_addr;
+	priv->i2c_props.adap  = i2c_adap;
+	priv->i2c_props.name  = "tea5767";
+
+	priv->ctrl.xtal_freq  = TEA5767_HIGH_LO_32768;
+	priv->ctrl.port1      = 1;
+	priv->ctrl.port2      = 1;
+	priv->ctrl.high_cut   = 1;
+	priv->ctrl.st_noise   = 1;
+	priv->ctrl.japan_band = 1;
+
+	memcpy(&fe->ops.tuner_ops, &tea5767_tuner_ops,
+	       sizeof(struct dvb_tuner_ops));
+
+	tuner_info("type set to %s\n", "Philips TEA5767HN FM Radio");
+
+	return fe;
+}
+
+EXPORT_SYMBOL_GPL(tea5767_attach);
+EXPORT_SYMBOL_GPL(tea5767_autodetection);
+
+MODULE_DESCRIPTION("Philips TEA5767 FM tuner driver");
+MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@kernel.org>");
+MODULE_LICENSE("GPL v2");