aboutsummaryrefslogtreecommitdiff
path: root/drivers/hwmon/lm95241.c
diff options
context:
space:
mode:
authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/hwmon/lm95241.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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(). ...
Diffstat (limited to 'drivers/hwmon/lm95241.c')
-rw-r--r--drivers/hwmon/lm95241.c481
1 files changed, 481 insertions, 0 deletions
diff --git a/drivers/hwmon/lm95241.c b/drivers/hwmon/lm95241.c
new file mode 100644
index 000000000..f1ed777a8
--- /dev/null
+++ b/drivers/hwmon/lm95241.c
@@ -0,0 +1,481 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2008, 2010 Davide Rizzo <elpa.rizzo@gmail.com>
+ *
+ * The LM95241 is a sensor chip made by National Semiconductors.
+ * It reports up to three temperatures (its own plus up to two external ones).
+ * Complete datasheet can be obtained from National's website at:
+ * http://www.national.com/ds.cgi/LM/LM95241.pdf
+ */
+
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+
+#define DEVNAME "lm95241"
+
+static const unsigned short normal_i2c[] = {
+ 0x19, 0x2a, 0x2b, I2C_CLIENT_END };
+
+/* LM95241 registers */
+#define LM95241_REG_R_MAN_ID 0xFE
+#define LM95241_REG_R_CHIP_ID 0xFF
+#define LM95241_REG_R_STATUS 0x02
+#define LM95241_REG_RW_CONFIG 0x03
+#define LM95241_REG_RW_REM_FILTER 0x06
+#define LM95241_REG_RW_TRUTHERM 0x07
+#define LM95241_REG_W_ONE_SHOT 0x0F
+#define LM95241_REG_R_LOCAL_TEMPH 0x10
+#define LM95241_REG_R_REMOTE1_TEMPH 0x11
+#define LM95241_REG_R_REMOTE2_TEMPH 0x12
+#define LM95241_REG_R_LOCAL_TEMPL 0x20
+#define LM95241_REG_R_REMOTE1_TEMPL 0x21
+#define LM95241_REG_R_REMOTE2_TEMPL 0x22
+#define LM95241_REG_RW_REMOTE_MODEL 0x30
+
+/* LM95241 specific bitfields */
+#define CFG_STOP BIT(6)
+#define CFG_CR0076 0x00
+#define CFG_CR0182 BIT(4)
+#define CFG_CR1000 BIT(5)
+#define CFG_CR2700 (BIT(4) | BIT(5))
+#define CFG_CRMASK (BIT(4) | BIT(5))
+#define R1MS_MASK BIT(0)
+#define R2MS_MASK BIT(2)
+#define R1DF_MASK BIT(1)
+#define R2DF_MASK BIT(2)
+#define R1FE_MASK BIT(0)
+#define R2FE_MASK BIT(2)
+#define R1DM BIT(0)
+#define R2DM BIT(1)
+#define TT1_SHIFT 0
+#define TT2_SHIFT 4
+#define TT_OFF 0
+#define TT_ON 1
+#define TT_MASK 7
+#define NATSEMI_MAN_ID 0x01
+#define LM95231_CHIP_ID 0xA1
+#define LM95241_CHIP_ID 0xA4
+
+static const u8 lm95241_reg_address[] = {
+ LM95241_REG_R_LOCAL_TEMPH,
+ LM95241_REG_R_LOCAL_TEMPL,
+ LM95241_REG_R_REMOTE1_TEMPH,
+ LM95241_REG_R_REMOTE1_TEMPL,
+ LM95241_REG_R_REMOTE2_TEMPH,
+ LM95241_REG_R_REMOTE2_TEMPL
+};
+
+/* Client data (each client gets its own) */
+struct lm95241_data {
+ struct i2c_client *client;
+ struct mutex update_lock;
+ unsigned long last_updated; /* in jiffies */
+ unsigned long interval; /* in milli-seconds */
+ bool valid; /* false until following fields are valid */
+ /* registers values */
+ u8 temp[ARRAY_SIZE(lm95241_reg_address)];
+ u8 status, config, model, trutherm;
+};
+
+/* Conversions */
+static int temp_from_reg_signed(u8 val_h, u8 val_l)
+{
+ s16 val_hl = (val_h << 8) | val_l;
+ return val_hl * 1000 / 256;
+}
+
+static int temp_from_reg_unsigned(u8 val_h, u8 val_l)
+{
+ u16 val_hl = (val_h << 8) | val_l;
+ return val_hl * 1000 / 256;
+}
+
+static struct lm95241_data *lm95241_update_device(struct device *dev)
+{
+ struct lm95241_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+
+ mutex_lock(&data->update_lock);
+
+ if (time_after(jiffies, data->last_updated
+ + msecs_to_jiffies(data->interval)) ||
+ !data->valid) {
+ int i;
+
+ dev_dbg(dev, "Updating lm95241 data.\n");
+ for (i = 0; i < ARRAY_SIZE(lm95241_reg_address); i++)
+ data->temp[i]
+ = i2c_smbus_read_byte_data(client,
+ lm95241_reg_address[i]);
+
+ data->status = i2c_smbus_read_byte_data(client,
+ LM95241_REG_R_STATUS);
+ data->last_updated = jiffies;
+ data->valid = true;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return data;
+}
+
+static int lm95241_read_chip(struct device *dev, u32 attr, int channel,
+ long *val)
+{
+ struct lm95241_data *data = dev_get_drvdata(dev);
+
+ switch (attr) {
+ case hwmon_chip_update_interval:
+ *val = data->interval;
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int lm95241_read_temp(struct device *dev, u32 attr, int channel,
+ long *val)
+{
+ struct lm95241_data *data = lm95241_update_device(dev);
+
+ switch (attr) {
+ case hwmon_temp_input:
+ if (!channel || (data->config & BIT(channel - 1)))
+ *val = temp_from_reg_signed(data->temp[channel * 2],
+ data->temp[channel * 2 + 1]);
+ else
+ *val = temp_from_reg_unsigned(data->temp[channel * 2],
+ data->temp[channel * 2 + 1]);
+ return 0;
+ case hwmon_temp_min:
+ if (channel == 1)
+ *val = (data->config & R1DF_MASK) ? -128000 : 0;
+ else
+ *val = (data->config & R2DF_MASK) ? -128000 : 0;
+ return 0;
+ case hwmon_temp_max:
+ if (channel == 1)
+ *val = (data->config & R1DF_MASK) ? 127875 : 255875;
+ else
+ *val = (data->config & R2DF_MASK) ? 127875 : 255875;
+ return 0;
+ case hwmon_temp_type:
+ if (channel == 1)
+ *val = (data->model & R1MS_MASK) ? 1 : 2;
+ else
+ *val = (data->model & R2MS_MASK) ? 1 : 2;
+ return 0;
+ case hwmon_temp_fault:
+ if (channel == 1)
+ *val = !!(data->status & R1DM);
+ else
+ *val = !!(data->status & R2DM);
+ return 0;
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int lm95241_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ switch (type) {
+ case hwmon_chip:
+ return lm95241_read_chip(dev, attr, channel, val);
+ case hwmon_temp:
+ return lm95241_read_temp(dev, attr, channel, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int lm95241_write_chip(struct device *dev, u32 attr, int channel,
+ long val)
+{
+ struct lm95241_data *data = dev_get_drvdata(dev);
+ int convrate;
+ u8 config;
+ int ret;
+
+ mutex_lock(&data->update_lock);
+
+ switch (attr) {
+ case hwmon_chip_update_interval:
+ config = data->config & ~CFG_CRMASK;
+ if (val < 130) {
+ convrate = 76;
+ config |= CFG_CR0076;
+ } else if (val < 590) {
+ convrate = 182;
+ config |= CFG_CR0182;
+ } else if (val < 1850) {
+ convrate = 1000;
+ config |= CFG_CR1000;
+ } else {
+ convrate = 2700;
+ config |= CFG_CR2700;
+ }
+ data->interval = convrate;
+ data->config = config;
+ ret = i2c_smbus_write_byte_data(data->client,
+ LM95241_REG_RW_CONFIG, config);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+ mutex_unlock(&data->update_lock);
+ return ret;
+}
+
+static int lm95241_write_temp(struct device *dev, u32 attr, int channel,
+ long val)
+{
+ struct lm95241_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
+ int ret;
+
+ mutex_lock(&data->update_lock);
+
+ switch (attr) {
+ case hwmon_temp_min:
+ if (channel == 1) {
+ if (val < 0)
+ data->config |= R1DF_MASK;
+ else
+ data->config &= ~R1DF_MASK;
+ } else {
+ if (val < 0)
+ data->config |= R2DF_MASK;
+ else
+ data->config &= ~R2DF_MASK;
+ }
+ data->valid = false;
+ ret = i2c_smbus_write_byte_data(client, LM95241_REG_RW_CONFIG,
+ data->config);
+ break;
+ case hwmon_temp_max:
+ if (channel == 1) {
+ if (val <= 127875)
+ data->config |= R1DF_MASK;
+ else
+ data->config &= ~R1DF_MASK;
+ } else {
+ if (val <= 127875)
+ data->config |= R2DF_MASK;
+ else
+ data->config &= ~R2DF_MASK;
+ }
+ data->valid = false;
+ ret = i2c_smbus_write_byte_data(client, LM95241_REG_RW_CONFIG,
+ data->config);
+ break;
+ case hwmon_temp_type:
+ if (val != 1 && val != 2) {
+ ret = -EINVAL;
+ break;
+ }
+ if (channel == 1) {
+ data->trutherm &= ~(TT_MASK << TT1_SHIFT);
+ if (val == 1) {
+ data->model |= R1MS_MASK;
+ data->trutherm |= (TT_ON << TT1_SHIFT);
+ } else {
+ data->model &= ~R1MS_MASK;
+ data->trutherm |= (TT_OFF << TT1_SHIFT);
+ }
+ } else {
+ data->trutherm &= ~(TT_MASK << TT2_SHIFT);
+ if (val == 1) {
+ data->model |= R2MS_MASK;
+ data->trutherm |= (TT_ON << TT2_SHIFT);
+ } else {
+ data->model &= ~R2MS_MASK;
+ data->trutherm |= (TT_OFF << TT2_SHIFT);
+ }
+ }
+ ret = i2c_smbus_write_byte_data(client,
+ LM95241_REG_RW_REMOTE_MODEL,
+ data->model);
+ if (ret < 0)
+ break;
+ ret = i2c_smbus_write_byte_data(client, LM95241_REG_RW_TRUTHERM,
+ data->trutherm);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
+ mutex_unlock(&data->update_lock);
+
+ return ret;
+}
+
+static int lm95241_write(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long val)
+{
+ switch (type) {
+ case hwmon_chip:
+ return lm95241_write_chip(dev, attr, channel, val);
+ case hwmon_temp:
+ return lm95241_write_temp(dev, attr, channel, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static umode_t lm95241_is_visible(const void *data,
+ enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ switch (type) {
+ case hwmon_chip:
+ switch (attr) {
+ case hwmon_chip_update_interval:
+ return 0644;
+ }
+ break;
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp_input:
+ return 0444;
+ case hwmon_temp_fault:
+ return 0444;
+ case hwmon_temp_min:
+ case hwmon_temp_max:
+ case hwmon_temp_type:
+ return 0644;
+ }
+ break;
+ default:
+ break;
+ }
+ return 0;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm95241_detect(struct i2c_client *new_client,
+ struct i2c_board_info *info)
+{
+ struct i2c_adapter *adapter = new_client->adapter;
+ const char *name;
+ int mfg_id, chip_id;
+
+ if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+ return -ENODEV;
+
+ mfg_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_MAN_ID);
+ if (mfg_id != NATSEMI_MAN_ID)
+ return -ENODEV;
+
+ chip_id = i2c_smbus_read_byte_data(new_client, LM95241_REG_R_CHIP_ID);
+ switch (chip_id) {
+ case LM95231_CHIP_ID:
+ name = "lm95231";
+ break;
+ case LM95241_CHIP_ID:
+ name = "lm95241";
+ break;
+ default:
+ return -ENODEV;
+ }
+
+ /* Fill the i2c board info */
+ strscpy(info->type, name, I2C_NAME_SIZE);
+ return 0;
+}
+
+static void lm95241_init_client(struct i2c_client *client,
+ struct lm95241_data *data)
+{
+ data->interval = 1000;
+ data->config = CFG_CR1000;
+ data->trutherm = (TT_OFF << TT1_SHIFT) | (TT_OFF << TT2_SHIFT);
+
+ i2c_smbus_write_byte_data(client, LM95241_REG_RW_CONFIG, data->config);
+ i2c_smbus_write_byte_data(client, LM95241_REG_RW_REM_FILTER,
+ R1FE_MASK | R2FE_MASK);
+ i2c_smbus_write_byte_data(client, LM95241_REG_RW_TRUTHERM,
+ data->trutherm);
+ i2c_smbus_write_byte_data(client, LM95241_REG_RW_REMOTE_MODEL,
+ data->model);
+}
+
+static const struct hwmon_channel_info *lm95241_info[] = {
+ HWMON_CHANNEL_INFO(chip,
+ HWMON_C_UPDATE_INTERVAL),
+ HWMON_CHANNEL_INFO(temp,
+ HWMON_T_INPUT,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_TYPE | HWMON_T_FAULT,
+ HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MIN |
+ HWMON_T_TYPE | HWMON_T_FAULT),
+ NULL
+};
+
+static const struct hwmon_ops lm95241_hwmon_ops = {
+ .is_visible = lm95241_is_visible,
+ .read = lm95241_read,
+ .write = lm95241_write,
+};
+
+static const struct hwmon_chip_info lm95241_chip_info = {
+ .ops = &lm95241_hwmon_ops,
+ .info = lm95241_info,
+};
+
+static int lm95241_probe(struct i2c_client *client)
+{
+ struct device *dev = &client->dev;
+ struct lm95241_data *data;
+ struct device *hwmon_dev;
+
+ data = devm_kzalloc(dev, sizeof(struct lm95241_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ data->client = client;
+ mutex_init(&data->update_lock);
+
+ /* Initialize the LM95241 chip */
+ lm95241_init_client(client, data);
+
+ hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
+ data,
+ &lm95241_chip_info,
+ NULL);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
+}
+
+/* Driver data (common to all clients) */
+static const struct i2c_device_id lm95241_id[] = {
+ { "lm95231", 0 },
+ { "lm95241", 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lm95241_id);
+
+static struct i2c_driver lm95241_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = DEVNAME,
+ },
+ .probe_new = lm95241_probe,
+ .id_table = lm95241_id,
+ .detect = lm95241_detect,
+ .address_list = normal_i2c,
+};
+
+module_i2c_driver(lm95241_driver);
+
+MODULE_AUTHOR("Davide Rizzo <elpa.rizzo@gmail.com>");
+MODULE_DESCRIPTION("LM95231/LM95241 sensor driver");
+MODULE_LICENSE("GPL");