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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/input/rmi4/rmi_bus.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/input/rmi4/rmi_bus.c')
-rw-r--r--drivers/input/rmi4/rmi_bus.c478
1 files changed, 478 insertions, 0 deletions
diff --git a/drivers/input/rmi4/rmi_bus.c b/drivers/input/rmi4/rmi_bus.c
new file mode 100644
index 000000000..50a0134b6
--- /dev/null
+++ b/drivers/input/rmi4/rmi_bus.c
@@ -0,0 +1,478 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2011-2016 Synaptics Incorporated
+ * Copyright (c) 2011 Unixphere
+ */
+
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/list.h>
+#include <linux/pm.h>
+#include <linux/rmi.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/of.h>
+#include "rmi_bus.h"
+#include "rmi_driver.h"
+
+static int debug_flags;
+module_param(debug_flags, int, 0644);
+MODULE_PARM_DESC(debug_flags, "control debugging information");
+
+void rmi_dbg(int flags, struct device *dev, const char *fmt, ...)
+{
+ struct va_format vaf;
+ va_list args;
+
+ if (flags & debug_flags) {
+ va_start(args, fmt);
+
+ vaf.fmt = fmt;
+ vaf.va = &args;
+
+ dev_printk(KERN_DEBUG, dev, "%pV", &vaf);
+
+ va_end(args);
+ }
+}
+EXPORT_SYMBOL_GPL(rmi_dbg);
+
+/*
+ * RMI Physical devices
+ *
+ * Physical RMI device consists of several functions serving particular
+ * purpose. For example F11 is a 2D touch sensor while F01 is a generic
+ * function present in every RMI device.
+ */
+
+static void rmi_release_device(struct device *dev)
+{
+ struct rmi_device *rmi_dev = to_rmi_device(dev);
+
+ kfree(rmi_dev);
+}
+
+static const struct device_type rmi_device_type = {
+ .name = "rmi4_sensor",
+ .release = rmi_release_device,
+};
+
+bool rmi_is_physical_device(struct device *dev)
+{
+ return dev->type == &rmi_device_type;
+}
+
+/**
+ * rmi_register_transport_device - register a transport device connection
+ * on the RMI bus. Transport drivers provide communication from the devices
+ * on a bus (such as SPI, I2C, and so on) to the RMI4 sensor.
+ *
+ * @xport: the transport device to register
+ */
+int rmi_register_transport_device(struct rmi_transport_dev *xport)
+{
+ static atomic_t transport_device_count = ATOMIC_INIT(0);
+ struct rmi_device *rmi_dev;
+ int error;
+
+ rmi_dev = kzalloc(sizeof(struct rmi_device), GFP_KERNEL);
+ if (!rmi_dev)
+ return -ENOMEM;
+
+ device_initialize(&rmi_dev->dev);
+
+ rmi_dev->xport = xport;
+ rmi_dev->number = atomic_inc_return(&transport_device_count) - 1;
+
+ dev_set_name(&rmi_dev->dev, "rmi4-%02d", rmi_dev->number);
+
+ rmi_dev->dev.bus = &rmi_bus_type;
+ rmi_dev->dev.type = &rmi_device_type;
+ rmi_dev->dev.parent = xport->dev;
+
+ xport->rmi_dev = rmi_dev;
+
+ error = device_add(&rmi_dev->dev);
+ if (error)
+ goto err_put_device;
+
+ rmi_dbg(RMI_DEBUG_CORE, xport->dev,
+ "%s: Registered %s as %s.\n", __func__,
+ dev_name(rmi_dev->xport->dev), dev_name(&rmi_dev->dev));
+
+ return 0;
+
+err_put_device:
+ put_device(&rmi_dev->dev);
+ return error;
+}
+EXPORT_SYMBOL_GPL(rmi_register_transport_device);
+
+/**
+ * rmi_unregister_transport_device - unregister a transport device connection
+ * @xport: the transport driver to unregister
+ *
+ */
+void rmi_unregister_transport_device(struct rmi_transport_dev *xport)
+{
+ struct rmi_device *rmi_dev = xport->rmi_dev;
+
+ device_del(&rmi_dev->dev);
+ put_device(&rmi_dev->dev);
+}
+EXPORT_SYMBOL(rmi_unregister_transport_device);
+
+
+/* Function specific stuff */
+
+static void rmi_release_function(struct device *dev)
+{
+ struct rmi_function *fn = to_rmi_function(dev);
+
+ kfree(fn);
+}
+
+static const struct device_type rmi_function_type = {
+ .name = "rmi4_function",
+ .release = rmi_release_function,
+};
+
+bool rmi_is_function_device(struct device *dev)
+{
+ return dev->type == &rmi_function_type;
+}
+
+static int rmi_function_match(struct device *dev, struct device_driver *drv)
+{
+ struct rmi_function_handler *handler = to_rmi_function_handler(drv);
+ struct rmi_function *fn = to_rmi_function(dev);
+
+ return fn->fd.function_number == handler->func;
+}
+
+#ifdef CONFIG_OF
+static void rmi_function_of_probe(struct rmi_function *fn)
+{
+ char of_name[9];
+ struct device_node *node = fn->rmi_dev->xport->dev->of_node;
+
+ snprintf(of_name, sizeof(of_name), "rmi4-f%02x",
+ fn->fd.function_number);
+ fn->dev.of_node = of_get_child_by_name(node, of_name);
+}
+#else
+static inline void rmi_function_of_probe(struct rmi_function *fn)
+{}
+#endif
+
+static struct irq_chip rmi_irq_chip = {
+ .name = "rmi4",
+};
+
+static int rmi_create_function_irq(struct rmi_function *fn,
+ struct rmi_function_handler *handler)
+{
+ struct rmi_driver_data *drvdata = dev_get_drvdata(&fn->rmi_dev->dev);
+ int i, error;
+
+ for (i = 0; i < fn->num_of_irqs; i++) {
+ set_bit(fn->irq_pos + i, fn->irq_mask);
+
+ fn->irq[i] = irq_create_mapping(drvdata->irqdomain,
+ fn->irq_pos + i);
+
+ irq_set_chip_data(fn->irq[i], fn);
+ irq_set_chip_and_handler(fn->irq[i], &rmi_irq_chip,
+ handle_simple_irq);
+ irq_set_nested_thread(fn->irq[i], 1);
+
+ error = devm_request_threaded_irq(&fn->dev, fn->irq[i], NULL,
+ handler->attention, IRQF_ONESHOT,
+ dev_name(&fn->dev), fn);
+ if (error) {
+ dev_err(&fn->dev, "Error %d registering IRQ\n", error);
+ return error;
+ }
+ }
+
+ return 0;
+}
+
+static int rmi_function_probe(struct device *dev)
+{
+ struct rmi_function *fn = to_rmi_function(dev);
+ struct rmi_function_handler *handler =
+ to_rmi_function_handler(dev->driver);
+ int error;
+
+ rmi_function_of_probe(fn);
+
+ if (handler->probe) {
+ error = handler->probe(fn);
+ if (error)
+ return error;
+ }
+
+ if (fn->num_of_irqs && handler->attention) {
+ error = rmi_create_function_irq(fn, handler);
+ if (error)
+ return error;
+ }
+
+ return 0;
+}
+
+static int rmi_function_remove(struct device *dev)
+{
+ struct rmi_function *fn = to_rmi_function(dev);
+ struct rmi_function_handler *handler =
+ to_rmi_function_handler(dev->driver);
+
+ if (handler->remove)
+ handler->remove(fn);
+
+ return 0;
+}
+
+int rmi_register_function(struct rmi_function *fn)
+{
+ struct rmi_device *rmi_dev = fn->rmi_dev;
+ int error;
+
+ device_initialize(&fn->dev);
+
+ dev_set_name(&fn->dev, "%s.fn%02x",
+ dev_name(&rmi_dev->dev), fn->fd.function_number);
+
+ fn->dev.parent = &rmi_dev->dev;
+ fn->dev.type = &rmi_function_type;
+ fn->dev.bus = &rmi_bus_type;
+
+ error = device_add(&fn->dev);
+ if (error) {
+ dev_err(&rmi_dev->dev,
+ "Failed device_register function device %s\n",
+ dev_name(&fn->dev));
+ goto err_put_device;
+ }
+
+ rmi_dbg(RMI_DEBUG_CORE, &rmi_dev->dev, "Registered F%02X.\n",
+ fn->fd.function_number);
+
+ return 0;
+
+err_put_device:
+ put_device(&fn->dev);
+ return error;
+}
+
+void rmi_unregister_function(struct rmi_function *fn)
+{
+ int i;
+
+ rmi_dbg(RMI_DEBUG_CORE, &fn->dev, "Unregistering F%02X.\n",
+ fn->fd.function_number);
+
+ device_del(&fn->dev);
+ of_node_put(fn->dev.of_node);
+ put_device(&fn->dev);
+
+ for (i = 0; i < fn->num_of_irqs; i++)
+ irq_dispose_mapping(fn->irq[i]);
+
+}
+
+/**
+ * rmi_register_function_handler - register a handler for an RMI function
+ * @handler: RMI handler that should be registered.
+ * @owner: pointer to module that implements the handler
+ * @mod_name: name of the module implementing the handler
+ *
+ * This function performs additional setup of RMI function handler and
+ * registers it with the RMI core so that it can be bound to
+ * RMI function devices.
+ */
+int __rmi_register_function_handler(struct rmi_function_handler *handler,
+ struct module *owner,
+ const char *mod_name)
+{
+ struct device_driver *driver = &handler->driver;
+ int error;
+
+ driver->bus = &rmi_bus_type;
+ driver->owner = owner;
+ driver->mod_name = mod_name;
+ driver->probe = rmi_function_probe;
+ driver->remove = rmi_function_remove;
+
+ error = driver_register(driver);
+ if (error) {
+ pr_err("driver_register() failed for %s, error: %d\n",
+ driver->name, error);
+ return error;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__rmi_register_function_handler);
+
+/**
+ * rmi_unregister_function_handler - unregister given RMI function handler
+ * @handler: RMI handler that should be unregistered.
+ *
+ * This function unregisters given function handler from RMI core which
+ * causes it to be unbound from the function devices.
+ */
+void rmi_unregister_function_handler(struct rmi_function_handler *handler)
+{
+ driver_unregister(&handler->driver);
+}
+EXPORT_SYMBOL_GPL(rmi_unregister_function_handler);
+
+/* Bus specific stuff */
+
+static int rmi_bus_match(struct device *dev, struct device_driver *drv)
+{
+ bool physical = rmi_is_physical_device(dev);
+
+ /* First see if types are not compatible */
+ if (physical != rmi_is_physical_driver(drv))
+ return 0;
+
+ return physical || rmi_function_match(dev, drv);
+}
+
+struct bus_type rmi_bus_type = {
+ .match = rmi_bus_match,
+ .name = "rmi4",
+};
+
+static struct rmi_function_handler *fn_handlers[] = {
+ &rmi_f01_handler,
+#ifdef CONFIG_RMI4_F03
+ &rmi_f03_handler,
+#endif
+#ifdef CONFIG_RMI4_F11
+ &rmi_f11_handler,
+#endif
+#ifdef CONFIG_RMI4_F12
+ &rmi_f12_handler,
+#endif
+#ifdef CONFIG_RMI4_F30
+ &rmi_f30_handler,
+#endif
+#ifdef CONFIG_RMI4_F34
+ &rmi_f34_handler,
+#endif
+#ifdef CONFIG_RMI4_F3A
+ &rmi_f3a_handler,
+#endif
+#ifdef CONFIG_RMI4_F54
+ &rmi_f54_handler,
+#endif
+#ifdef CONFIG_RMI4_F55
+ &rmi_f55_handler,
+#endif
+};
+
+static void __rmi_unregister_function_handlers(int start_idx)
+{
+ int i;
+
+ for (i = start_idx; i >= 0; i--)
+ rmi_unregister_function_handler(fn_handlers[i]);
+}
+
+static void rmi_unregister_function_handlers(void)
+{
+ __rmi_unregister_function_handlers(ARRAY_SIZE(fn_handlers) - 1);
+}
+
+static int rmi_register_function_handlers(void)
+{
+ int ret;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(fn_handlers); i++) {
+ ret = rmi_register_function_handler(fn_handlers[i]);
+ if (ret) {
+ pr_err("%s: error registering the RMI F%02x handler: %d\n",
+ __func__, fn_handlers[i]->func, ret);
+ goto err_unregister_function_handlers;
+ }
+ }
+
+ return 0;
+
+err_unregister_function_handlers:
+ __rmi_unregister_function_handlers(i - 1);
+ return ret;
+}
+
+int rmi_of_property_read_u32(struct device *dev, u32 *result,
+ const char *prop, bool optional)
+{
+ int retval;
+ u32 val = 0;
+
+ retval = of_property_read_u32(dev->of_node, prop, &val);
+ if (retval && (!optional && retval == -EINVAL)) {
+ dev_err(dev, "Failed to get %s value: %d\n",
+ prop, retval);
+ return retval;
+ }
+ *result = val;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(rmi_of_property_read_u32);
+
+static int __init rmi_bus_init(void)
+{
+ int error;
+
+ error = bus_register(&rmi_bus_type);
+ if (error) {
+ pr_err("%s: error registering the RMI bus: %d\n",
+ __func__, error);
+ return error;
+ }
+
+ error = rmi_register_function_handlers();
+ if (error)
+ goto err_unregister_bus;
+
+ error = rmi_register_physical_driver();
+ if (error) {
+ pr_err("%s: error registering the RMI physical driver: %d\n",
+ __func__, error);
+ goto err_unregister_bus;
+ }
+
+ return 0;
+
+err_unregister_bus:
+ bus_unregister(&rmi_bus_type);
+ return error;
+}
+module_init(rmi_bus_init);
+
+static void __exit rmi_bus_exit(void)
+{
+ /*
+ * We should only ever get here if all drivers are unloaded, so
+ * all we have to do at this point is unregister ourselves.
+ */
+
+ rmi_unregister_physical_driver();
+ rmi_unregister_function_handlers();
+ bus_unregister(&rmi_bus_type);
+}
+module_exit(rmi_bus_exit);
+
+MODULE_AUTHOR("Christopher Heiny <cheiny@synaptics.com");
+MODULE_AUTHOR("Andrew Duggan <aduggan@synaptics.com");
+MODULE_DESCRIPTION("RMI bus");
+MODULE_LICENSE("GPL");