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, 382 insertions, 0 deletions

diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.h b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
new file mode 100644
index 000000000..1f4bbaf31
--- /dev/null
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.h
@@ -0,0 +1,382 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * OMAP4 Bandgap temperature sensor driver
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Contact:
+ *   Eduardo Valentin <eduardo.valentin@ti.com>
+ */
+#ifndef __TI_BANDGAP_H
+#define __TI_BANDGAP_H
+
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/err.h>
+#include <linux/cpu_pm.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm.h>
+
+struct gpio_desc;
+
+/**
+ * DOC: bandgap driver data structure
+ * ==================================
+ *
+ *   +----------+----------------+
+ *   | struct temp_sensor_regval |
+ *   +---------------------------+
+ *              * (Array of)
+ *              |
+ *              |
+ *   +-------------------+   +-----------------+
+ *   | struct ti_bandgap |-->| struct device * |
+ *   +----------+--------+   +-----------------+
+ *              |
+ *              |
+ *              V
+ *   +------------------------+
+ *   | struct ti_bandgap_data |
+ *   +------------------------+
+ *              |
+ *              |
+ *              * (Array of)
+ * +------------+------------------------------------------------------+
+ * | +----------+------------+   +-------------------------+           |
+ * | | struct ti_temp_sensor |-->| struct temp_sensor_data |           |
+ * | +-----------------------+   +------------+------------+           |
+ * |            |                                                      |
+ * |            +                                                      |
+ * |            V                                                      |
+ * | +----------+-------------------+                                  |
+ * | | struct temp_sensor_registers |                                  |
+ * | +------------------------------+                                  |
+ * |                                                                   |
+ * +-------------------------------------------------------------------+
+ *
+ * Above is a simple diagram describing how the data structure below
+ * are organized. For each bandgap device there should be a ti_bandgap_data
+ * containing the device instance configuration, as well as, an array of
+ * sensors, representing every sensor instance present in this bandgap.
+ */
+
+/**
+ * struct temp_sensor_registers - descriptor to access registers and bitfields
+ * @temp_sensor_ctrl: TEMP_SENSOR_CTRL register offset
+ * @bgap_tempsoff_mask: mask to temp_sensor_ctrl.tempsoff
+ * @bgap_soc_mask: mask to temp_sensor_ctrl.soc
+ * @bgap_eocz_mask: mask to temp_sensor_ctrl.eocz
+ * @bgap_dtemp_mask: mask to temp_sensor_ctrl.dtemp
+ * @bgap_mask_ctrl: BANDGAP_MASK_CTRL register offset
+ * @mask_hot_mask: mask to bandgap_mask_ctrl.mask_hot
+ * @mask_cold_mask: mask to bandgap_mask_ctrl.mask_cold
+ * @mask_counter_delay_mask: mask to bandgap_mask_ctrl.mask_counter_delay
+ * @mask_freeze_mask: mask to bandgap_mask_ctrl.mask_free
+ * @bgap_mode_ctrl: BANDGAP_MODE_CTRL register offset
+ * @mode_ctrl_mask: mask to bandgap_mode_ctrl.mode_ctrl
+ * @bgap_counter: BANDGAP_COUNTER register offset
+ * @counter_mask: mask to bandgap_counter.counter
+ * @bgap_threshold: BANDGAP_THRESHOLD register offset (TALERT thresholds)
+ * @threshold_thot_mask: mask to bandgap_threhold.thot
+ * @threshold_tcold_mask: mask to bandgap_threhold.tcold
+ * @tshut_threshold: TSHUT_THRESHOLD register offset (TSHUT thresholds)
+ * @tshut_hot_mask: mask to tshut_threhold.thot
+ * @tshut_cold_mask: mask to tshut_threhold.thot
+ * @bgap_status: BANDGAP_STATUS register offset
+ * @status_hot_mask: mask to bandgap_status.hot
+ * @status_cold_mask: mask to bandgap_status.cold
+ * @ctrl_dtemp_1: CTRL_DTEMP1 register offset
+ * @ctrl_dtemp_2: CTRL_DTEMP2 register offset
+ * @bgap_efuse: BANDGAP_EFUSE register offset
+ *
+ * The register offsets and bitfields might change across
+ * OMAP and variants versions. Hence this struct serves as a
+ * descriptor map on how to access the registers and the bitfields.
+ *
+ * This descriptor contains registers of all versions of bandgap chips.
+ * Not all versions will use all registers, depending on the available
+ * features. Please read TRMs for descriptive explanation on each bitfield.
+ */
+
+struct temp_sensor_registers {
+	u32	temp_sensor_ctrl;
+	u32	bgap_tempsoff_mask;
+	u32	bgap_soc_mask;
+	u32	bgap_eocz_mask;
+	u32	bgap_dtemp_mask;
+
+	u32	bgap_mask_ctrl;
+	u32	mask_hot_mask;
+	u32	mask_cold_mask;
+	u32	mask_counter_delay_mask;
+	u32	mask_freeze_mask;
+
+	u32	bgap_mode_ctrl;
+	u32	mode_ctrl_mask;
+
+	u32	bgap_counter;
+	u32	counter_mask;
+
+	u32	bgap_threshold;
+	u32	threshold_thot_mask;
+	u32	threshold_tcold_mask;
+
+	u32	tshut_threshold;
+	u32	tshut_hot_mask;
+	u32	tshut_cold_mask;
+
+	u32	bgap_status;
+	u32	status_hot_mask;
+	u32	status_cold_mask;
+
+	u32	ctrl_dtemp_1;
+	u32	ctrl_dtemp_2;
+	u32	bgap_efuse;
+};
+
+/**
+ * struct temp_sensor_data - The thresholds and limits for temperature sensors.
+ * @tshut_hot: temperature to trigger a thermal reset (initial value)
+ * @tshut_cold: temp to get the plat out of reset due to thermal (init val)
+ * @t_hot: temperature to trigger a thermal alert (high initial value)
+ * @t_cold: temperature to trigger a thermal alert (low initial value)
+ * @min_freq: sensor minimum clock rate
+ * @max_freq: sensor maximum clock rate
+ *
+ * This data structure will hold the required thresholds and temperature limits
+ * for a specific temperature sensor, like shutdown temperature, alert
+ * temperature, clock / rate used, ADC conversion limits and update intervals
+ */
+struct temp_sensor_data {
+	u32	tshut_hot;
+	u32	tshut_cold;
+	u32	t_hot;
+	u32	t_cold;
+	u32	min_freq;
+	u32	max_freq;
+};
+
+struct ti_bandgap_data;
+
+/**
+ * struct temp_sensor_regval - temperature sensor register values and priv data
+ * @bg_mode_ctrl: temp sensor control register value
+ * @bg_ctrl: bandgap ctrl register value
+ * @bg_counter: bandgap counter value
+ * @bg_threshold: bandgap threshold register value
+ * @tshut_threshold: bandgap tshut register value
+ * @data: private data
+ *
+ * Data structure to save and restore bandgap register set context. Only
+ * required registers are shadowed, when needed.
+ */
+struct temp_sensor_regval {
+	u32			bg_mode_ctrl;
+	u32			bg_ctrl;
+	u32			bg_counter;
+	u32			bg_threshold;
+	u32			tshut_threshold;
+	void			*data;
+};
+
+/**
+ * struct ti_bandgap - bandgap device structure
+ * @dev: struct device pointer
+ * @base: io memory base address
+ * @conf: struct with bandgap configuration set (# sensors, conv_table, etc)
+ * @regval: temperature sensor register values
+ * @fclock: pointer to functional clock of temperature sensor
+ * @div_clk: pointer to divider clock of temperature sensor fclk
+ * @lock: spinlock for ti_bandgap structure
+ * @irq: MPU IRQ number for thermal alert
+ * @tshut_gpio: GPIO where Tshut signal is routed
+ * @clk_rate: Holds current clock rate
+ *
+ * The bandgap device structure representing the bandgap device instance.
+ * It holds most of the dynamic stuff. Configurations and sensor specific
+ * entries are inside the @conf structure.
+ */
+struct ti_bandgap {
+	struct device			*dev;
+	void __iomem			*base;
+	const struct ti_bandgap_data	*conf;
+	struct temp_sensor_regval	*regval;
+	struct clk			*fclock;
+	struct clk			*div_clk;
+	spinlock_t			lock; /* shields this struct */
+	int				irq;
+	struct gpio_desc		*tshut_gpiod;
+	u32				clk_rate;
+	struct notifier_block		nb;
+	unsigned int is_suspended:1;
+};
+
+/**
+ * struct ti_temp_sensor - bandgap temperature sensor configuration data
+ * @ts_data: pointer to struct with thresholds, limits of temperature sensor
+ * @registers: pointer to the list of register offsets and bitfields
+ * @domain: the name of the domain where the sensor is located
+ * @slope_pcb: sensor gradient slope info for hotspot extrapolation equation
+ *             with no external influence
+ * @constant_pcb: sensor gradient const info for hotspot extrapolation equation
+ *             with no external influence
+ * @register_cooling: function to describe how this sensor is going to be cooled
+ * @unregister_cooling: function to release cooling data
+ *
+ * Data structure to describe a temperature sensor handled by a bandgap device.
+ * It should provide configuration details on this sensor, such as how to
+ * access the registers affecting this sensor, shadow register buffer, how to
+ * assess the gradient from hotspot, how to cooldown the domain when sensor
+ * reports too hot temperature.
+ */
+struct ti_temp_sensor {
+	struct temp_sensor_data		*ts_data;
+	struct temp_sensor_registers	*registers;
+	char				*domain;
+	/* for hotspot extrapolation */
+	const int			slope_pcb;
+	const int			constant_pcb;
+	int (*register_cooling)(struct ti_bandgap *bgp, int id);
+	int (*unregister_cooling)(struct ti_bandgap *bgp, int id);
+};
+
+/**
+ * DOC: ti bandgap feature types
+ *
+ * TI_BANDGAP_FEATURE_TSHUT - used when the thermal shutdown signal output
+ *      of a bandgap device instance is routed to the processor. This means
+ *      the system must react and perform the shutdown by itself (handle an
+ *      IRQ, for instance).
+ *
+ * TI_BANDGAP_FEATURE_TSHUT_CONFIG - used when the bandgap device has control
+ *      over the thermal shutdown configuration. This means that the thermal
+ *      shutdown thresholds are programmable, for instance.
+ *
+ * TI_BANDGAP_FEATURE_TALERT - used when the bandgap device instance outputs
+ *      a signal representing violation of programmable alert thresholds.
+ *
+ * TI_BANDGAP_FEATURE_MODE_CONFIG - used when it is possible to choose which
+ *      mode, continuous or one shot, the bandgap device instance will operate.
+ *
+ * TI_BANDGAP_FEATURE_COUNTER - used when the bandgap device instance allows
+ *      programming the update interval of its internal state machine.
+ *
+ * TI_BANDGAP_FEATURE_POWER_SWITCH - used when the bandgap device allows
+ *      itself to be switched on/off.
+ *
+ * TI_BANDGAP_FEATURE_CLK_CTRL - used when the clocks feeding the bandgap
+ *      device are gateable or not.
+ *
+ * TI_BANDGAP_FEATURE_FREEZE_BIT - used when the bandgap device features
+ *      a history buffer that its update can be freezed/unfreezed.
+ *
+ * TI_BANDGAP_FEATURE_COUNTER_DELAY - used when the bandgap device features
+ *	a delay programming based on distinct values.
+ *
+ * TI_BANDGAP_FEATURE_HISTORY_BUFFER - used when the bandgap device features
+ *	a history buffer of temperatures.
+ *
+ * TI_BANDGAP_FEATURE_ERRATA_814 - used to workaorund when the bandgap device
+ *	has Errata 814
+ * TI_BANDGAP_FEATURE_UNRELIABLE - used when the sensor readings are too
+ *	inaccurate.
+ * TI_BANDGAP_FEATURE_CONT_MODE_ONLY - used when single mode hangs the sensor
+ * TI_BANDGAP_HAS(b, f) - macro to check if a bandgap device is capable of a
+ *      specific feature (above) or not. Return non-zero, if yes.
+ */
+#define TI_BANDGAP_FEATURE_TSHUT		BIT(0)
+#define TI_BANDGAP_FEATURE_TSHUT_CONFIG		BIT(1)
+#define TI_BANDGAP_FEATURE_TALERT		BIT(2)
+#define TI_BANDGAP_FEATURE_MODE_CONFIG		BIT(3)
+#define TI_BANDGAP_FEATURE_COUNTER		BIT(4)
+#define TI_BANDGAP_FEATURE_POWER_SWITCH		BIT(5)
+#define TI_BANDGAP_FEATURE_CLK_CTRL		BIT(6)
+#define TI_BANDGAP_FEATURE_FREEZE_BIT		BIT(7)
+#define TI_BANDGAP_FEATURE_COUNTER_DELAY	BIT(8)
+#define TI_BANDGAP_FEATURE_HISTORY_BUFFER	BIT(9)
+#define TI_BANDGAP_FEATURE_ERRATA_814		BIT(10)
+#define TI_BANDGAP_FEATURE_UNRELIABLE		BIT(11)
+#define TI_BANDGAP_FEATURE_CONT_MODE_ONLY	BIT(12)
+#define TI_BANDGAP_HAS(b, f)			\
+			((b)->conf->features & TI_BANDGAP_FEATURE_ ## f)
+
+/**
+ * struct ti_bandgap_data - ti bandgap data configuration structure
+ * @features: a bitwise flag set to describe the device features
+ * @conv_table: Pointer to ADC to temperature conversion table
+ * @adc_start_val: ADC conversion table starting value
+ * @adc_end_val: ADC conversion table ending value
+ * @fclock_name: clock name of the functional clock
+ * @div_ck_name: clock name of the clock divisor
+ * @sensor_count: count of temperature sensor within this bandgap device
+ * @report_temperature: callback to report thermal alert to thermal API
+ * @expose_sensor: callback to export sensor to thermal API
+ * @remove_sensor: callback to destroy sensor from thermal API
+ * @sensors: array of sensors present in this bandgap instance
+ *
+ * This is a data structure which should hold most of the static configuration
+ * of a bandgap device instance. It should describe which features this instance
+ * is capable of, the clock names to feed this device, the amount of sensors and
+ * their configuration representation, and how to export and unexport them to
+ * a thermal API.
+ */
+struct ti_bandgap_data {
+	unsigned int			features;
+	const int			*conv_table;
+	u32				adc_start_val;
+	u32				adc_end_val;
+	char				*fclock_name;
+	char				*div_ck_name;
+	int				sensor_count;
+	int (*report_temperature)(struct ti_bandgap *bgp, int id);
+	int (*expose_sensor)(struct ti_bandgap *bgp, int id, char *domain);
+	int (*remove_sensor)(struct ti_bandgap *bgp, int id);
+
+	/* this needs to be at the end */
+	struct ti_temp_sensor		sensors[];
+};
+
+int ti_bandgap_read_thot(struct ti_bandgap *bgp, int id, int *thot);
+int ti_bandgap_write_thot(struct ti_bandgap *bgp, int id, int val);
+int ti_bandgap_read_tcold(struct ti_bandgap *bgp, int id, int *tcold);
+int ti_bandgap_write_tcold(struct ti_bandgap *bgp, int id, int val);
+int ti_bandgap_read_update_interval(struct ti_bandgap *bgp, int id,
+				    int *interval);
+int ti_bandgap_write_update_interval(struct ti_bandgap *bgp, int id,
+				     u32 interval);
+int ti_bandgap_read_temperature(struct ti_bandgap *bgp, int id,
+				  int *temperature);
+int ti_bandgap_set_sensor_data(struct ti_bandgap *bgp, int id, void *data);
+void *ti_bandgap_get_sensor_data(struct ti_bandgap *bgp, int id);
+int ti_bandgap_get_trend(struct ti_bandgap *bgp, int id, int *trend);
+
+#ifdef CONFIG_OMAP3_THERMAL
+extern const struct ti_bandgap_data omap34xx_data;
+extern const struct ti_bandgap_data omap36xx_data;
+#else
+#define omap34xx_data					NULL
+#define omap36xx_data					NULL
+#endif
+
+#ifdef CONFIG_OMAP4_THERMAL
+extern const struct ti_bandgap_data omap4430_data;
+extern const struct ti_bandgap_data omap4460_data;
+extern const struct ti_bandgap_data omap4470_data;
+#else
+#define omap4430_data					NULL
+#define omap4460_data					NULL
+#define omap4470_data					NULL
+#endif
+
+#ifdef CONFIG_OMAP5_THERMAL
+extern const struct ti_bandgap_data omap5430_data;
+#else
+#define omap5430_data					NULL
+#endif
+
+#ifdef CONFIG_DRA752_THERMAL
+extern const struct ti_bandgap_data dra752_data;
+#else
+#define dra752_data					NULL
+#endif
+#endif