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/leds/leds-mlxcpld.c | 435 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 435 insertions(+) create mode 100644 drivers/leds/leds-mlxcpld.c (limited to 'drivers/leds/leds-mlxcpld.c') diff --git a/drivers/leds/leds-mlxcpld.c b/drivers/leds/leds-mlxcpld.c new file mode 100644 index 000000000..1355c84a2 --- /dev/null +++ b/drivers/leds/leds-mlxcpld.c @@ -0,0 +1,435 @@ +/* + * drivers/leds/leds-mlxcpld.c + * Copyright (c) 2016 Mellanox Technologies. All rights reserved. + * Copyright (c) 2016 Vadim Pasternak + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. Neither the names of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MLXPLAT_CPLD_LPC_REG_BASE_ADRR 0x2500 /* LPC bus access */ + +/* Color codes for LEDs */ +#define MLXCPLD_LED_OFFSET_HALF 0x01 /* Offset from solid: 3Hz blink */ +#define MLXCPLD_LED_OFFSET_FULL 0x02 /* Offset from solid: 6Hz blink */ +#define MLXCPLD_LED_IS_OFF 0x00 /* Off */ +#define MLXCPLD_LED_RED_STATIC_ON 0x05 /* Solid red */ +#define MLXCPLD_LED_RED_BLINK_HALF (MLXCPLD_LED_RED_STATIC_ON + \ + MLXCPLD_LED_OFFSET_HALF) +#define MLXCPLD_LED_RED_BLINK_FULL (MLXCPLD_LED_RED_STATIC_ON + \ + MLXCPLD_LED_OFFSET_FULL) +#define MLXCPLD_LED_GREEN_STATIC_ON 0x0D /* Solid green */ +#define MLXCPLD_LED_GREEN_BLINK_HALF (MLXCPLD_LED_GREEN_STATIC_ON + \ + MLXCPLD_LED_OFFSET_HALF) +#define MLXCPLD_LED_GREEN_BLINK_FULL (MLXCPLD_LED_GREEN_STATIC_ON + \ + MLXCPLD_LED_OFFSET_FULL) +#define MLXCPLD_LED_BLINK_3HZ 167 /* ~167 msec off/on */ +#define MLXCPLD_LED_BLINK_6HZ 83 /* ~83 msec off/on */ + +/** + * struct mlxcpld_param - LED access parameters: + * @offset: offset for LED access in CPLD device + * @mask: mask for LED access in CPLD device + * @base_color: base color code for LED +**/ +struct mlxcpld_param { + u8 offset; + u8 mask; + u8 base_color; +}; + +/** + * struct mlxcpld_led_priv - LED private data: + * @cled: LED class device instance + * @param: LED CPLD access parameters +**/ +struct mlxcpld_led_priv { + struct led_classdev cdev; + struct mlxcpld_param param; +}; + +#define cdev_to_priv(c) container_of(c, struct mlxcpld_led_priv, cdev) + +/** + * struct mlxcpld_led_profile - system LED profile (defined per system class): + * @offset: offset for LED access in CPLD device + * @mask: mask for LED access in CPLD device + * @base_color: base color code + * @brightness: default brightness setting (on/off) + * @name: LED name +**/ +struct mlxcpld_led_profile { + u8 offset; + u8 mask; + u8 base_color; + enum led_brightness brightness; + const char *name; +}; + +/** + * struct mlxcpld_led_pdata - system LED private data + * @pdev: platform device pointer + * @pled: LED class device instance + * @profile: system configuration profile + * @num_led_instances: number of LED instances + * @lock: device access lock +**/ +struct mlxcpld_led_pdata { + struct platform_device *pdev; + struct mlxcpld_led_priv *pled; + struct mlxcpld_led_profile *profile; + int num_led_instances; + spinlock_t lock; +}; + +static struct mlxcpld_led_pdata *mlxcpld_led; + +/* Default profile fit the next Mellanox systems: + * "msx6710", "msx6720", "msb7700", "msn2700", "msx1410", + * "msn2410", "msb7800", "msn2740" + */ +static struct mlxcpld_led_profile mlxcpld_led_default_profile[] = { + { + 0x21, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:fan1:green", + }, + { + 0x21, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:fan1:red", + }, + { + 0x21, 0x0f, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:fan2:green", + }, + { + 0x21, 0x0f, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:fan2:red", + }, + { + 0x22, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:fan3:green", + }, + { + 0x22, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:fan3:red", + }, + { + 0x22, 0x0f, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:fan4:green", + }, + { + 0x22, 0x0f, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:fan4:red", + }, + { + 0x20, 0x0f, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:psu:green", + }, + { + 0x20, 0x0f, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:psu:red", + }, + { + 0x20, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:status:green", + }, + { + 0x20, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:status:red", + }, +}; + +/* Profile fit the Mellanox systems based on "msn2100" */ +static struct mlxcpld_led_profile mlxcpld_led_msn2100_profile[] = { + { + 0x21, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:fan:green", + }, + { + 0x21, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:fan:red", + }, + { + 0x23, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:psu1:green", + }, + { + 0x23, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:psu1:red", + }, + { + 0x23, 0x0f, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:psu2:green", + }, + { + 0x23, 0x0f, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:psu2:red", + }, + { + 0x20, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, 1, + "mlxcpld:status:green", + }, + { + 0x20, 0xf0, MLXCPLD_LED_RED_STATIC_ON, LED_OFF, + "mlxcpld:status:red", + }, + { + 0x24, 0xf0, MLXCPLD_LED_GREEN_STATIC_ON, LED_OFF, + "mlxcpld:uid:blue", + }, +}; + +enum mlxcpld_led_platform_types { + MLXCPLD_LED_PLATFORM_DEFAULT, + MLXCPLD_LED_PLATFORM_MSN2100, +}; + +static const char *mlx_product_names[] = { + "DEFAULT", + "MSN2100", +}; + +static enum +mlxcpld_led_platform_types mlxcpld_led_platform_check_sys_type(void) +{ + const char *mlx_product_name; + int i; + + mlx_product_name = dmi_get_system_info(DMI_PRODUCT_NAME); + if (!mlx_product_name) + return MLXCPLD_LED_PLATFORM_DEFAULT; + + for (i = 1; i < ARRAY_SIZE(mlx_product_names); i++) { + if (strstr(mlx_product_name, mlx_product_names[i])) + return i; + } + + return MLXCPLD_LED_PLATFORM_DEFAULT; +} + +static void mlxcpld_led_bus_access_func(u16 base, u8 offset, u8 rw_flag, + u8 *data) +{ + u32 addr = base + offset; + + if (rw_flag == 0) + outb(*data, addr); + else + *data = inb(addr); +} + +static void mlxcpld_led_store_hw(u8 mask, u8 off, u8 vset) +{ + u8 nib, val; + + /* + * Each LED is controlled through low or high nibble of the relevant + * CPLD register. Register offset is specified by off parameter. + * Parameter vset provides color code: 0x0 for off, 0x5 for solid red, + * 0x6 for 3Hz blink red, 0xd for solid green, 0xe for 3Hz blink + * green. + * Parameter mask specifies which nibble is used for specific LED: mask + * 0xf0 - lower nibble is to be used (bits from 0 to 3), mask 0x0f - + * higher nibble (bits from 4 to 7). + */ + spin_lock(&mlxcpld_led->lock); + mlxcpld_led_bus_access_func(MLXPLAT_CPLD_LPC_REG_BASE_ADRR, off, 1, + &val); + nib = (mask == 0xf0) ? vset : (vset << 4); + val = (val & mask) | nib; + mlxcpld_led_bus_access_func(MLXPLAT_CPLD_LPC_REG_BASE_ADRR, off, 0, + &val); + spin_unlock(&mlxcpld_led->lock); +} + +static void mlxcpld_led_brightness_set(struct led_classdev *led, + enum led_brightness value) +{ + struct mlxcpld_led_priv *pled = cdev_to_priv(led); + + if (value) { + mlxcpld_led_store_hw(pled->param.mask, pled->param.offset, + pled->param.base_color); + return; + } + + mlxcpld_led_store_hw(pled->param.mask, pled->param.offset, + MLXCPLD_LED_IS_OFF); +} + +static int mlxcpld_led_blink_set(struct led_classdev *led, + unsigned long *delay_on, + unsigned long *delay_off) +{ + struct mlxcpld_led_priv *pled = cdev_to_priv(led); + + /* + * HW supports two types of blinking: full (6Hz) and half (3Hz). + * For delay on/off zero default setting 3Hz is used. + */ + if (!(*delay_on == 0 && *delay_off == 0) && + !(*delay_on == MLXCPLD_LED_BLINK_3HZ && + *delay_off == MLXCPLD_LED_BLINK_3HZ) && + !(*delay_on == MLXCPLD_LED_BLINK_6HZ && + *delay_off == MLXCPLD_LED_BLINK_6HZ)) + return -EINVAL; + + if (*delay_on == MLXCPLD_LED_BLINK_6HZ) + mlxcpld_led_store_hw(pled->param.mask, pled->param.offset, + pled->param.base_color + + MLXCPLD_LED_OFFSET_FULL); + else + mlxcpld_led_store_hw(pled->param.mask, pled->param.offset, + pled->param.base_color + + MLXCPLD_LED_OFFSET_HALF); + + return 0; +} + +static int mlxcpld_led_config(struct device *dev, + struct mlxcpld_led_pdata *cpld) +{ + int i; + int err; + + cpld->pled = devm_kcalloc(dev, + cpld->num_led_instances, + sizeof(struct mlxcpld_led_priv), + GFP_KERNEL); + if (!cpld->pled) + return -ENOMEM; + + for (i = 0; i < cpld->num_led_instances; i++) { + cpld->pled[i].cdev.name = cpld->profile[i].name; + cpld->pled[i].cdev.brightness = cpld->profile[i].brightness; + cpld->pled[i].cdev.max_brightness = 1; + cpld->pled[i].cdev.brightness_set = mlxcpld_led_brightness_set; + cpld->pled[i].cdev.blink_set = mlxcpld_led_blink_set; + cpld->pled[i].cdev.flags = LED_CORE_SUSPENDRESUME; + err = devm_led_classdev_register(dev, &cpld->pled[i].cdev); + if (err) + return err; + + cpld->pled[i].param.offset = mlxcpld_led->profile[i].offset; + cpld->pled[i].param.mask = mlxcpld_led->profile[i].mask; + cpld->pled[i].param.base_color = + mlxcpld_led->profile[i].base_color; + + if (mlxcpld_led->profile[i].brightness) + mlxcpld_led_brightness_set(&cpld->pled[i].cdev, + mlxcpld_led->profile[i].brightness); + } + + return 0; +} + +static int __init mlxcpld_led_probe(struct platform_device *pdev) +{ + enum mlxcpld_led_platform_types mlxcpld_led_plat = + mlxcpld_led_platform_check_sys_type(); + + mlxcpld_led = devm_kzalloc(&pdev->dev, sizeof(*mlxcpld_led), + GFP_KERNEL); + if (!mlxcpld_led) + return -ENOMEM; + + mlxcpld_led->pdev = pdev; + + switch (mlxcpld_led_plat) { + case MLXCPLD_LED_PLATFORM_MSN2100: + mlxcpld_led->profile = mlxcpld_led_msn2100_profile; + mlxcpld_led->num_led_instances = + ARRAY_SIZE(mlxcpld_led_msn2100_profile); + break; + + default: + mlxcpld_led->profile = mlxcpld_led_default_profile; + mlxcpld_led->num_led_instances = + ARRAY_SIZE(mlxcpld_led_default_profile); + break; + } + + spin_lock_init(&mlxcpld_led->lock); + + return mlxcpld_led_config(&pdev->dev, mlxcpld_led); +} + +static struct platform_driver mlxcpld_led_driver = { + .driver = { + .name = KBUILD_MODNAME, + }, +}; + +static int __init mlxcpld_led_init(void) +{ + struct platform_device *pdev; + int err; + + if (!dmi_match(DMI_CHASSIS_VENDOR, "Mellanox Technologies Ltd.")) + return -ENODEV; + + pdev = platform_device_register_simple(KBUILD_MODNAME, -1, NULL, 0); + if (IS_ERR(pdev)) { + pr_err("Device allocation failed\n"); + return PTR_ERR(pdev); + } + + err = platform_driver_probe(&mlxcpld_led_driver, mlxcpld_led_probe); + if (err) { + pr_err("Probe platform driver failed\n"); + platform_device_unregister(pdev); + } + + return err; +} + +static void __exit mlxcpld_led_exit(void) +{ + platform_device_unregister(mlxcpld_led->pdev); + platform_driver_unregister(&mlxcpld_led_driver); +} + +module_init(mlxcpld_led_init); +module_exit(mlxcpld_led_exit); + +MODULE_AUTHOR("Vadim Pasternak "); +MODULE_DESCRIPTION("Mellanox board LED driver"); +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_ALIAS("platform:leds_mlxcpld"); -- cgit v1.2.3