From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/staging/iio/adc/Kconfig | 18 ++ drivers/staging/iio/adc/Makefile | 6 + drivers/staging/iio/adc/ad7816.c | 451 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 475 insertions(+) create mode 100644 drivers/staging/iio/adc/Kconfig create mode 100644 drivers/staging/iio/adc/Makefile create mode 100644 drivers/staging/iio/adc/ad7816.c (limited to 'drivers/staging/iio/adc') diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig new file mode 100644 index 000000000..2f0d6cf04 --- /dev/null +++ b/drivers/staging/iio/adc/Kconfig @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# ADC drivers +# +menu "Analog to digital converters" + +config AD7816 + tristate "Analog Devices AD7816/7/8 temperature sensor and ADC driver" + depends on SPI + depends on GPIOLIB || COMPILE_TEST + help + Say yes here to build support for Analog Devices AD7816/7/8 + temperature sensors and ADC. + + To compile this driver as a module, choose M here: the + module will be called ad7816. + +endmenu diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile new file mode 100644 index 000000000..1e2a94c4d --- /dev/null +++ b/drivers/staging/iio/adc/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Makefile for industrial I/O ADC drivers +# + +obj-$(CONFIG_AD7816) += ad7816.o diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c new file mode 100644 index 000000000..6c14d7bcd --- /dev/null +++ b/drivers/staging/iio/adc/ad7816.c @@ -0,0 +1,451 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * AD7816 digital temperature sensor driver supporting AD7816/7/8 + * + * Copyright 2010 Analog Devices Inc. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +/* + * AD7816 config masks + */ +#define AD7816_FULL 0x1 +#define AD7816_PD 0x2 +#define AD7816_CS_MASK 0x7 +#define AD7816_CS_MAX 0x4 + +/* + * AD7816 temperature masks + */ +#define AD7816_VALUE_OFFSET 6 +#define AD7816_BOUND_VALUE_BASE 0x8 +#define AD7816_BOUND_VALUE_MIN -95 +#define AD7816_BOUND_VALUE_MAX 152 +#define AD7816_TEMP_FLOAT_OFFSET 2 +#define AD7816_TEMP_FLOAT_MASK 0x3 + +/* + * struct ad7816_chip_info - chip specific information + */ + +struct ad7816_chip_info { + kernel_ulong_t id; + struct spi_device *spi_dev; + struct gpio_desc *rdwr_pin; + struct gpio_desc *convert_pin; + struct gpio_desc *busy_pin; + u8 oti_data[AD7816_CS_MAX + 1]; + u8 channel_id; /* 0 always be temperature */ + u8 mode; +}; + +enum ad7816_type { + ID_AD7816, + ID_AD7817, + ID_AD7818, +}; + +/* + * ad7816 data access by SPI + */ +static int ad7816_spi_read(struct ad7816_chip_info *chip, u16 *data) +{ + struct spi_device *spi_dev = chip->spi_dev; + int ret; + __be16 buf; + + gpiod_set_value(chip->rdwr_pin, 1); + gpiod_set_value(chip->rdwr_pin, 0); + ret = spi_write(spi_dev, &chip->channel_id, sizeof(chip->channel_id)); + if (ret < 0) { + dev_err(&spi_dev->dev, "SPI channel setting error\n"); + return ret; + } + gpiod_set_value(chip->rdwr_pin, 1); + + if (chip->mode == AD7816_PD) { /* operating mode 2 */ + gpiod_set_value(chip->convert_pin, 1); + gpiod_set_value(chip->convert_pin, 0); + } else { /* operating mode 1 */ + gpiod_set_value(chip->convert_pin, 0); + gpiod_set_value(chip->convert_pin, 1); + } + + if (chip->id == ID_AD7816 || chip->id == ID_AD7817) { + while (gpiod_get_value(chip->busy_pin)) + cpu_relax(); + } + + gpiod_set_value(chip->rdwr_pin, 0); + gpiod_set_value(chip->rdwr_pin, 1); + ret = spi_read(spi_dev, &buf, sizeof(*data)); + if (ret < 0) { + dev_err(&spi_dev->dev, "SPI data read error\n"); + return ret; + } + + *data = be16_to_cpu(buf); + + return ret; +} + +static int ad7816_spi_write(struct ad7816_chip_info *chip, u8 data) +{ + struct spi_device *spi_dev = chip->spi_dev; + int ret; + + gpiod_set_value(chip->rdwr_pin, 1); + gpiod_set_value(chip->rdwr_pin, 0); + ret = spi_write(spi_dev, &data, sizeof(data)); + if (ret < 0) + dev_err(&spi_dev->dev, "SPI oti data write error\n"); + + return ret; +} + +static ssize_t ad7816_show_mode(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + + if (chip->mode) + return sprintf(buf, "power-save\n"); + return sprintf(buf, "full\n"); +} + +static ssize_t ad7816_store_mode(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t len) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + + if (strcmp(buf, "full")) { + gpiod_set_value(chip->rdwr_pin, 1); + chip->mode = AD7816_FULL; + } else { + gpiod_set_value(chip->rdwr_pin, 0); + chip->mode = AD7816_PD; + } + + return len; +} + +static IIO_DEVICE_ATTR(mode, 0644, + ad7816_show_mode, + ad7816_store_mode, + 0); + +static ssize_t ad7816_show_available_modes(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "full\npower-save\n"); +} + +static IIO_DEVICE_ATTR(available_modes, 0444, ad7816_show_available_modes, + NULL, 0); + +static ssize_t ad7816_show_channel(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + + return sprintf(buf, "%d\n", chip->channel_id); +} + +static ssize_t ad7816_store_channel(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t len) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + unsigned long data; + int ret; + + ret = kstrtoul(buf, 10, &data); + if (ret) + return ret; + + if (data > AD7816_CS_MAX && data != AD7816_CS_MASK) { + dev_err(&chip->spi_dev->dev, "Invalid channel id %lu for %s.\n", + data, indio_dev->name); + return -EINVAL; + } else if (strcmp(indio_dev->name, "ad7818") == 0 && data > 1) { + dev_err(&chip->spi_dev->dev, + "Invalid channel id %lu for ad7818.\n", data); + return -EINVAL; + } else if (strcmp(indio_dev->name, "ad7816") == 0 && data > 0) { + dev_err(&chip->spi_dev->dev, + "Invalid channel id %lu for ad7816.\n", data); + return -EINVAL; + } + + chip->channel_id = data; + + return len; +} + +static IIO_DEVICE_ATTR(channel, 0644, + ad7816_show_channel, + ad7816_store_channel, + 0); + +static ssize_t ad7816_show_value(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + u16 data; + s8 value; + int ret; + + ret = ad7816_spi_read(chip, &data); + if (ret) + return -EIO; + + data >>= AD7816_VALUE_OFFSET; + + if (chip->channel_id == 0) { + value = (s8)((data >> AD7816_TEMP_FLOAT_OFFSET) - 103); + data &= AD7816_TEMP_FLOAT_MASK; + if (value < 0) + data = BIT(AD7816_TEMP_FLOAT_OFFSET) - data; + return sprintf(buf, "%d.%.2d\n", value, data * 25); + } + return sprintf(buf, "%u\n", data); +} + +static IIO_DEVICE_ATTR(value, 0444, ad7816_show_value, NULL, 0); + +static struct attribute *ad7816_attributes[] = { + &iio_dev_attr_available_modes.dev_attr.attr, + &iio_dev_attr_mode.dev_attr.attr, + &iio_dev_attr_channel.dev_attr.attr, + &iio_dev_attr_value.dev_attr.attr, + NULL, +}; + +static const struct attribute_group ad7816_attribute_group = { + .attrs = ad7816_attributes, +}; + +/* + * temperature bound events + */ + +#define IIO_EVENT_CODE_AD7816_OTI IIO_UNMOD_EVENT_CODE(IIO_TEMP, \ + 0, \ + IIO_EV_TYPE_THRESH, \ + IIO_EV_DIR_FALLING) + +static irqreturn_t ad7816_event_handler(int irq, void *private) +{ + iio_push_event(private, IIO_EVENT_CODE_AD7816_OTI, + iio_get_time_ns(private)); + return IRQ_HANDLED; +} + +static ssize_t ad7816_show_oti(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + int value; + + if (chip->channel_id > AD7816_CS_MAX) { + dev_err(dev, "Invalid oti channel id %d.\n", chip->channel_id); + return -EINVAL; + } else if (chip->channel_id == 0) { + value = AD7816_BOUND_VALUE_MIN + + (chip->oti_data[chip->channel_id] - + AD7816_BOUND_VALUE_BASE); + return sprintf(buf, "%d\n", value); + } + return sprintf(buf, "%u\n", chip->oti_data[chip->channel_id]); +} + +static inline ssize_t ad7816_set_oti(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t len) +{ + struct iio_dev *indio_dev = dev_to_iio_dev(dev); + struct ad7816_chip_info *chip = iio_priv(indio_dev); + long value; + u8 data; + int ret; + + ret = kstrtol(buf, 10, &value); + if (ret) + return ret; + + if (chip->channel_id > AD7816_CS_MAX) { + dev_err(dev, "Invalid oti channel id %d.\n", chip->channel_id); + return -EINVAL; + } else if (chip->channel_id == 0) { + if (value < AD7816_BOUND_VALUE_MIN || + value > AD7816_BOUND_VALUE_MAX) + return -EINVAL; + + data = (u8)(value - AD7816_BOUND_VALUE_MIN + + AD7816_BOUND_VALUE_BASE); + } else { + if (value < AD7816_BOUND_VALUE_BASE || value > 255) + return -EINVAL; + + data = (u8)value; + } + + ret = ad7816_spi_write(chip, data); + if (ret) + return -EIO; + + chip->oti_data[chip->channel_id] = data; + + return len; +} + +static IIO_DEVICE_ATTR(oti, 0644, + ad7816_show_oti, ad7816_set_oti, 0); + +static struct attribute *ad7816_event_attributes[] = { + &iio_dev_attr_oti.dev_attr.attr, + NULL, +}; + +static const struct attribute_group ad7816_event_attribute_group = { + .attrs = ad7816_event_attributes, + .name = "events", +}; + +static const struct iio_info ad7816_info = { + .attrs = &ad7816_attribute_group, + .event_attrs = &ad7816_event_attribute_group, +}; + +/* + * device probe and remove + */ + +static int ad7816_probe(struct spi_device *spi_dev) +{ + struct ad7816_chip_info *chip; + struct iio_dev *indio_dev; + int i, ret; + + indio_dev = devm_iio_device_alloc(&spi_dev->dev, sizeof(*chip)); + if (!indio_dev) + return -ENOMEM; + chip = iio_priv(indio_dev); + /* this is only used for device removal purposes */ + dev_set_drvdata(&spi_dev->dev, indio_dev); + + chip->spi_dev = spi_dev; + for (i = 0; i <= AD7816_CS_MAX; i++) + chip->oti_data[i] = 203; + + chip->id = spi_get_device_id(spi_dev)->driver_data; + chip->rdwr_pin = devm_gpiod_get(&spi_dev->dev, "rdwr", GPIOD_OUT_HIGH); + if (IS_ERR(chip->rdwr_pin)) { + ret = PTR_ERR(chip->rdwr_pin); + dev_err(&spi_dev->dev, "Failed to request rdwr GPIO: %d\n", + ret); + return ret; + } + chip->convert_pin = devm_gpiod_get(&spi_dev->dev, "convert", + GPIOD_OUT_HIGH); + if (IS_ERR(chip->convert_pin)) { + ret = PTR_ERR(chip->convert_pin); + dev_err(&spi_dev->dev, "Failed to request convert GPIO: %d\n", + ret); + return ret; + } + if (chip->id == ID_AD7816 || chip->id == ID_AD7817) { + chip->busy_pin = devm_gpiod_get(&spi_dev->dev, "busy", + GPIOD_IN); + if (IS_ERR(chip->busy_pin)) { + ret = PTR_ERR(chip->busy_pin); + dev_err(&spi_dev->dev, "Failed to request busy GPIO: %d\n", + ret); + return ret; + } + } + + indio_dev->name = spi_get_device_id(spi_dev)->name; + indio_dev->info = &ad7816_info; + indio_dev->modes = INDIO_DIRECT_MODE; + + if (spi_dev->irq) { + /* Only low trigger is supported in ad7816/7/8 */ + ret = devm_request_threaded_irq(&spi_dev->dev, spi_dev->irq, + NULL, + &ad7816_event_handler, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + indio_dev->name, + indio_dev); + if (ret) + return ret; + } + + ret = devm_iio_device_register(&spi_dev->dev, indio_dev); + if (ret) + return ret; + + dev_info(&spi_dev->dev, "%s temperature sensor and ADC registered.\n", + indio_dev->name); + + return 0; +} + +static const struct of_device_id ad7816_of_match[] = { + { .compatible = "adi,ad7816", }, + { .compatible = "adi,ad7817", }, + { .compatible = "adi,ad7818", }, + { } +}; +MODULE_DEVICE_TABLE(of, ad7816_of_match); + +static const struct spi_device_id ad7816_id[] = { + { "ad7816", ID_AD7816 }, + { "ad7817", ID_AD7817 }, + { "ad7818", ID_AD7818 }, + {} +}; + +MODULE_DEVICE_TABLE(spi, ad7816_id); + +static struct spi_driver ad7816_driver = { + .driver = { + .name = "ad7816", + .of_match_table = ad7816_of_match, + }, + .probe = ad7816_probe, + .id_table = ad7816_id, +}; +module_spi_driver(ad7816_driver); + +MODULE_AUTHOR("Sonic Zhang "); +MODULE_DESCRIPTION("Analog Devices AD7816/7/8 digital temperature sensor driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3