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/i2c/busses/i2c-scmi.c | 429 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 429 insertions(+) create mode 100644 drivers/i2c/busses/i2c-scmi.c (limited to 'drivers/i2c/busses/i2c-scmi.c') diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c new file mode 100644 index 000000000..0239e134b --- /dev/null +++ b/drivers/i2c/busses/i2c-scmi.c @@ -0,0 +1,429 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * SMBus driver for ACPI SMBus CMI + * + * Copyright (C) 2009 Crane Cai + */ + +#include +#include +#include +#include +#include +#include +#include + +/* SMBUS HID definition as supported by Microsoft Windows */ +#define ACPI_SMBUS_MS_HID "SMB0001" + +struct smbus_methods_t { + char *mt_info; + char *mt_sbr; + char *mt_sbw; +}; + +struct acpi_smbus_cmi { + acpi_handle handle; + struct i2c_adapter adapter; + u8 cap_info:1; + u8 cap_read:1; + u8 cap_write:1; + const struct smbus_methods_t *methods; +}; + +static const struct smbus_methods_t smbus_methods = { + .mt_info = "_SBI", + .mt_sbr = "_SBR", + .mt_sbw = "_SBW", +}; + +/* Some IBM BIOSes omit the leading underscore */ +static const struct smbus_methods_t ibm_smbus_methods = { + .mt_info = "SBI_", + .mt_sbr = "SBR_", + .mt_sbw = "SBW_", +}; + +static const struct acpi_device_id acpi_smbus_cmi_ids[] = { + {"SMBUS01", (kernel_ulong_t)&smbus_methods}, + {ACPI_SMBUS_IBM_HID, (kernel_ulong_t)&ibm_smbus_methods}, + {ACPI_SMBUS_MS_HID, (kernel_ulong_t)&smbus_methods}, + {"", 0} +}; +MODULE_DEVICE_TABLE(acpi, acpi_smbus_cmi_ids); + +#define ACPI_SMBUS_STATUS_OK 0x00 +#define ACPI_SMBUS_STATUS_FAIL 0x07 +#define ACPI_SMBUS_STATUS_DNAK 0x10 +#define ACPI_SMBUS_STATUS_DERR 0x11 +#define ACPI_SMBUS_STATUS_CMD_DENY 0x12 +#define ACPI_SMBUS_STATUS_UNKNOWN 0x13 +#define ACPI_SMBUS_STATUS_ACC_DENY 0x17 +#define ACPI_SMBUS_STATUS_TIMEOUT 0x18 +#define ACPI_SMBUS_STATUS_NOTSUP 0x19 +#define ACPI_SMBUS_STATUS_BUSY 0x1a +#define ACPI_SMBUS_STATUS_PEC 0x1f + +#define ACPI_SMBUS_PRTCL_WRITE 0x00 +#define ACPI_SMBUS_PRTCL_READ 0x01 +#define ACPI_SMBUS_PRTCL_QUICK 0x02 +#define ACPI_SMBUS_PRTCL_BYTE 0x04 +#define ACPI_SMBUS_PRTCL_BYTE_DATA 0x06 +#define ACPI_SMBUS_PRTCL_WORD_DATA 0x08 +#define ACPI_SMBUS_PRTCL_BLOCK_DATA 0x0a + + +static int +acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags, + char read_write, u8 command, int size, + union i2c_smbus_data *data) +{ + int result = 0; + struct acpi_smbus_cmi *smbus_cmi = adap->algo_data; + unsigned char protocol; + acpi_status status = 0; + struct acpi_object_list input; + union acpi_object mt_params[5]; + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; + union acpi_object *pkg; + char *method; + int len = 0; + + dev_dbg(&adap->dev, "access size: %d %s\n", size, + (read_write) ? "READ" : "WRITE"); + switch (size) { + case I2C_SMBUS_QUICK: + protocol = ACPI_SMBUS_PRTCL_QUICK; + command = 0; + if (read_write == I2C_SMBUS_WRITE) { + mt_params[3].type = ACPI_TYPE_INTEGER; + mt_params[3].integer.value = 0; + mt_params[4].type = ACPI_TYPE_INTEGER; + mt_params[4].integer.value = 0; + } + break; + + case I2C_SMBUS_BYTE: + protocol = ACPI_SMBUS_PRTCL_BYTE; + if (read_write == I2C_SMBUS_WRITE) { + mt_params[3].type = ACPI_TYPE_INTEGER; + mt_params[3].integer.value = 0; + mt_params[4].type = ACPI_TYPE_INTEGER; + mt_params[4].integer.value = 0; + } else { + command = 0; + } + break; + + case I2C_SMBUS_BYTE_DATA: + protocol = ACPI_SMBUS_PRTCL_BYTE_DATA; + if (read_write == I2C_SMBUS_WRITE) { + mt_params[3].type = ACPI_TYPE_INTEGER; + mt_params[3].integer.value = 1; + mt_params[4].type = ACPI_TYPE_INTEGER; + mt_params[4].integer.value = data->byte; + } + break; + + case I2C_SMBUS_WORD_DATA: + protocol = ACPI_SMBUS_PRTCL_WORD_DATA; + if (read_write == I2C_SMBUS_WRITE) { + mt_params[3].type = ACPI_TYPE_INTEGER; + mt_params[3].integer.value = 2; + mt_params[4].type = ACPI_TYPE_INTEGER; + mt_params[4].integer.value = data->word; + } + break; + + case I2C_SMBUS_BLOCK_DATA: + protocol = ACPI_SMBUS_PRTCL_BLOCK_DATA; + if (read_write == I2C_SMBUS_WRITE) { + len = data->block[0]; + if (len == 0 || len > I2C_SMBUS_BLOCK_MAX) + return -EINVAL; + mt_params[3].type = ACPI_TYPE_INTEGER; + mt_params[3].integer.value = len; + mt_params[4].type = ACPI_TYPE_BUFFER; + mt_params[4].buffer.length = len; + mt_params[4].buffer.pointer = data->block + 1; + } + break; + + default: + dev_warn(&adap->dev, "Unsupported transaction %d\n", size); + return -EOPNOTSUPP; + } + + if (read_write == I2C_SMBUS_READ) { + protocol |= ACPI_SMBUS_PRTCL_READ; + method = smbus_cmi->methods->mt_sbr; + input.count = 3; + } else { + protocol |= ACPI_SMBUS_PRTCL_WRITE; + method = smbus_cmi->methods->mt_sbw; + input.count = 5; + } + + input.pointer = mt_params; + mt_params[0].type = ACPI_TYPE_INTEGER; + mt_params[0].integer.value = protocol; + mt_params[1].type = ACPI_TYPE_INTEGER; + mt_params[1].integer.value = addr; + mt_params[2].type = ACPI_TYPE_INTEGER; + mt_params[2].integer.value = command; + + status = acpi_evaluate_object(smbus_cmi->handle, method, &input, + &buffer); + if (ACPI_FAILURE(status)) { + acpi_handle_err(smbus_cmi->handle, + "Failed to evaluate %s: %i\n", method, status); + return -EIO; + } + + pkg = buffer.pointer; + if (pkg && pkg->type == ACPI_TYPE_PACKAGE) + obj = pkg->package.elements; + else { + acpi_handle_err(smbus_cmi->handle, "Invalid argument type\n"); + result = -EIO; + goto out; + } + if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_err(smbus_cmi->handle, "Invalid argument type\n"); + result = -EIO; + goto out; + } + + result = obj->integer.value; + acpi_handle_debug(smbus_cmi->handle, "%s return status: %i\n", method, + result); + + switch (result) { + case ACPI_SMBUS_STATUS_OK: + result = 0; + break; + case ACPI_SMBUS_STATUS_BUSY: + result = -EBUSY; + goto out; + case ACPI_SMBUS_STATUS_TIMEOUT: + result = -ETIMEDOUT; + goto out; + case ACPI_SMBUS_STATUS_DNAK: + result = -ENXIO; + goto out; + default: + result = -EIO; + goto out; + } + + if (read_write == I2C_SMBUS_WRITE || size == I2C_SMBUS_QUICK) + goto out; + + obj = pkg->package.elements + 1; + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_err(smbus_cmi->handle, "Invalid argument type\n"); + result = -EIO; + goto out; + } + + len = obj->integer.value; + obj = pkg->package.elements + 2; + switch (size) { + case I2C_SMBUS_BYTE: + case I2C_SMBUS_BYTE_DATA: + case I2C_SMBUS_WORD_DATA: + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_err(smbus_cmi->handle, + "Invalid argument type\n"); + result = -EIO; + goto out; + } + if (len == 2) + data->word = obj->integer.value; + else + data->byte = obj->integer.value; + break; + case I2C_SMBUS_BLOCK_DATA: + if (obj->type != ACPI_TYPE_BUFFER) { + acpi_handle_err(smbus_cmi->handle, + "Invalid argument type\n"); + result = -EIO; + goto out; + } + if (len == 0 || len > I2C_SMBUS_BLOCK_MAX) + return -EPROTO; + data->block[0] = len; + memcpy(data->block + 1, obj->buffer.pointer, len); + break; + } + +out: + kfree(buffer.pointer); + dev_dbg(&adap->dev, "Transaction status: %i\n", result); + return result; +} + +static u32 acpi_smbus_cmi_func(struct i2c_adapter *adapter) +{ + struct acpi_smbus_cmi *smbus_cmi = adapter->algo_data; + u32 ret; + + ret = smbus_cmi->cap_read | smbus_cmi->cap_write ? + I2C_FUNC_SMBUS_QUICK : 0; + + ret |= smbus_cmi->cap_read ? + (I2C_FUNC_SMBUS_READ_BYTE | + I2C_FUNC_SMBUS_READ_BYTE_DATA | + I2C_FUNC_SMBUS_READ_WORD_DATA | + I2C_FUNC_SMBUS_READ_BLOCK_DATA) : 0; + + ret |= smbus_cmi->cap_write ? + (I2C_FUNC_SMBUS_WRITE_BYTE | + I2C_FUNC_SMBUS_WRITE_BYTE_DATA | + I2C_FUNC_SMBUS_WRITE_WORD_DATA | + I2C_FUNC_SMBUS_WRITE_BLOCK_DATA) : 0; + + return ret; +} + +static const struct i2c_algorithm acpi_smbus_cmi_algorithm = { + .smbus_xfer = acpi_smbus_cmi_access, + .functionality = acpi_smbus_cmi_func, +}; + + +static int acpi_smbus_cmi_add_cap(struct acpi_smbus_cmi *smbus_cmi, + const char *name) +{ + struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + struct acpi_handle *handle = smbus_cmi->handle; + union acpi_object *obj; + acpi_status status; + + if (!strcmp(name, smbus_cmi->methods->mt_info)) { + status = acpi_evaluate_object(smbus_cmi->handle, + smbus_cmi->methods->mt_info, + NULL, &buffer); + if (ACPI_FAILURE(status)) { + acpi_handle_err(handle, "Failed to evaluate %s: %i\n", + smbus_cmi->methods->mt_info, status); + return -EIO; + } + + obj = buffer.pointer; + if (obj && obj->type == ACPI_TYPE_PACKAGE) + obj = obj->package.elements; + else { + acpi_handle_err(handle, "Invalid argument type\n"); + kfree(buffer.pointer); + return -EIO; + } + + if (obj->type != ACPI_TYPE_INTEGER) { + acpi_handle_err(handle, "Invalid argument type\n"); + kfree(buffer.pointer); + return -EIO; + } else + acpi_handle_debug(handle, "SMBus CMI Version %x\n", + (int)obj->integer.value); + + kfree(buffer.pointer); + smbus_cmi->cap_info = 1; + } else if (!strcmp(name, smbus_cmi->methods->mt_sbr)) + smbus_cmi->cap_read = 1; + else if (!strcmp(name, smbus_cmi->methods->mt_sbw)) + smbus_cmi->cap_write = 1; + else + acpi_handle_debug(handle, "Unsupported CMI method: %s\n", name); + + return 0; +} + +static acpi_status acpi_smbus_cmi_query_methods(acpi_handle handle, u32 level, + void *context, void **return_value) +{ + char node_name[5]; + struct acpi_buffer buffer = { sizeof(node_name), node_name }; + struct acpi_smbus_cmi *smbus_cmi = context; + acpi_status status; + + status = acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer); + + if (ACPI_SUCCESS(status)) + acpi_smbus_cmi_add_cap(smbus_cmi, node_name); + + return AE_OK; +} + +static int smbus_cmi_probe(struct platform_device *device) +{ + struct device *dev = &device->dev; + struct acpi_smbus_cmi *smbus_cmi; + int ret; + + smbus_cmi = kzalloc(sizeof(struct acpi_smbus_cmi), GFP_KERNEL); + if (!smbus_cmi) + return -ENOMEM; + + smbus_cmi->handle = ACPI_HANDLE(dev); + smbus_cmi->methods = device_get_match_data(dev); + + platform_set_drvdata(device, smbus_cmi); + + smbus_cmi->cap_info = 0; + smbus_cmi->cap_read = 0; + smbus_cmi->cap_write = 0; + + acpi_walk_namespace(ACPI_TYPE_METHOD, smbus_cmi->handle, 1, + acpi_smbus_cmi_query_methods, NULL, smbus_cmi, NULL); + + if (smbus_cmi->cap_info == 0) { + ret = -ENODEV; + goto err; + } + + snprintf(smbus_cmi->adapter.name, sizeof(smbus_cmi->adapter.name), + "SMBus CMI adapter %s", dev_name(dev)); + smbus_cmi->adapter.owner = THIS_MODULE; + smbus_cmi->adapter.algo = &acpi_smbus_cmi_algorithm; + smbus_cmi->adapter.algo_data = smbus_cmi; + smbus_cmi->adapter.class = I2C_CLASS_HWMON | I2C_CLASS_SPD; + smbus_cmi->adapter.dev.parent = &device->dev; + + ret = i2c_add_adapter(&smbus_cmi->adapter); + if (ret) { + dev_err(&device->dev, "Couldn't register adapter!\n"); + goto err; + } + + return 0; + +err: + kfree(smbus_cmi); + return ret; +} + +static int smbus_cmi_remove(struct platform_device *device) +{ + struct acpi_smbus_cmi *smbus_cmi = platform_get_drvdata(device); + + i2c_del_adapter(&smbus_cmi->adapter); + kfree(smbus_cmi); + + return 0; +} + +static struct platform_driver smbus_cmi_driver = { + .probe = smbus_cmi_probe, + .remove = smbus_cmi_remove, + .driver = { + .name = "smbus_cmi", + .acpi_match_table = acpi_smbus_cmi_ids, + }, +}; +module_platform_driver(smbus_cmi_driver); + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Crane Cai "); +MODULE_DESCRIPTION("ACPI SMBus CMI driver"); -- cgit v1.2.3