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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/leds/leds-lp55xx-common.h
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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/leds/leds-lp55xx-common.h')
-rw-r--r--drivers/leds/leds-lp55xx-common.h211
1 files changed, 211 insertions, 0 deletions
diff --git a/drivers/leds/leds-lp55xx-common.h b/drivers/leds/leds-lp55xx-common.h
new file mode 100644
index 000000000..2f38c5b33
--- /dev/null
+++ b/drivers/leds/leds-lp55xx-common.h
@@ -0,0 +1,211 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * LP55XX Common Driver Header
+ *
+ * Copyright (C) 2012 Texas Instruments
+ *
+ * Author: Milo(Woogyom) Kim <milo.kim@ti.com>
+ *
+ * Derived from leds-lp5521.c, leds-lp5523.c
+ */
+
+#ifndef _LEDS_LP55XX_COMMON_H
+#define _LEDS_LP55XX_COMMON_H
+
+#include <linux/led-class-multicolor.h>
+
+enum lp55xx_engine_index {
+ LP55XX_ENGINE_INVALID,
+ LP55XX_ENGINE_1,
+ LP55XX_ENGINE_2,
+ LP55XX_ENGINE_3,
+ LP55XX_ENGINE_MAX = LP55XX_ENGINE_3,
+};
+
+enum lp55xx_engine_mode {
+ LP55XX_ENGINE_DISABLED,
+ LP55XX_ENGINE_LOAD,
+ LP55XX_ENGINE_RUN,
+};
+
+#define LP55XX_DEV_ATTR_RW(name, show, store) \
+ DEVICE_ATTR(name, S_IRUGO | S_IWUSR, show, store)
+#define LP55XX_DEV_ATTR_RO(name, show) \
+ DEVICE_ATTR(name, S_IRUGO, show, NULL)
+#define LP55XX_DEV_ATTR_WO(name, store) \
+ DEVICE_ATTR(name, S_IWUSR, NULL, store)
+
+#define show_mode(nr) \
+static ssize_t show_engine##nr##_mode(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ return show_engine_mode(dev, attr, buf, nr); \
+}
+
+#define store_mode(nr) \
+static ssize_t store_engine##nr##_mode(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t len) \
+{ \
+ return store_engine_mode(dev, attr, buf, len, nr); \
+}
+
+#define show_leds(nr) \
+static ssize_t show_engine##nr##_leds(struct device *dev, \
+ struct device_attribute *attr, \
+ char *buf) \
+{ \
+ return show_engine_leds(dev, attr, buf, nr); \
+}
+
+#define store_leds(nr) \
+static ssize_t store_engine##nr##_leds(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t len) \
+{ \
+ return store_engine_leds(dev, attr, buf, len, nr); \
+}
+
+#define store_load(nr) \
+static ssize_t store_engine##nr##_load(struct device *dev, \
+ struct device_attribute *attr, \
+ const char *buf, size_t len) \
+{ \
+ return store_engine_load(dev, attr, buf, len, nr); \
+}
+
+struct lp55xx_led;
+struct lp55xx_chip;
+
+/*
+ * struct lp55xx_reg
+ * @addr : Register address
+ * @val : Register value
+ */
+struct lp55xx_reg {
+ u8 addr;
+ u8 val;
+};
+
+/*
+ * struct lp55xx_device_config
+ * @reset : Chip specific reset command
+ * @enable : Chip specific enable command
+ * @max_channel : Maximum number of channels
+ * @post_init_device : Chip specific initialization code
+ * @brightness_fn : Brightness function
+ * @multicolor_brightness_fn : Multicolor brightness function
+ * @set_led_current : LED current set function
+ * @firmware_cb : Call function when the firmware is loaded
+ * @run_engine : Run internal engine for pattern
+ * @dev_attr_group : Device specific attributes
+ */
+struct lp55xx_device_config {
+ const struct lp55xx_reg reset;
+ const struct lp55xx_reg enable;
+ const int max_channel;
+
+ /* define if the device has specific initialization process */
+ int (*post_init_device) (struct lp55xx_chip *chip);
+
+ /* set LED brightness */
+ int (*brightness_fn)(struct lp55xx_led *led);
+
+ /* set multicolor LED brightness */
+ int (*multicolor_brightness_fn)(struct lp55xx_led *led);
+
+ /* current setting function */
+ void (*set_led_current) (struct lp55xx_led *led, u8 led_current);
+
+ /* access program memory when the firmware is loaded */
+ void (*firmware_cb)(struct lp55xx_chip *chip);
+
+ /* used for running firmware LED patterns */
+ void (*run_engine) (struct lp55xx_chip *chip, bool start);
+
+ /* additional device specific attributes */
+ const struct attribute_group *dev_attr_group;
+};
+
+/*
+ * struct lp55xx_engine
+ * @mode : Engine mode
+ * @led_mux : Mux bits for LED selection. Only used in LP5523
+ */
+struct lp55xx_engine {
+ enum lp55xx_engine_mode mode;
+ u16 led_mux;
+};
+
+/*
+ * struct lp55xx_chip
+ * @cl : I2C communication for access registers
+ * @pdata : Platform specific data
+ * @lock : Lock for user-space interface
+ * @num_leds : Number of registered LEDs
+ * @cfg : Device specific configuration data
+ * @engine_idx : Selected engine number
+ * @engines : Engine structure for the device attribute R/W interface
+ * @fw : Firmware data for running a LED pattern
+ */
+struct lp55xx_chip {
+ struct i2c_client *cl;
+ struct clk *clk;
+ struct lp55xx_platform_data *pdata;
+ struct mutex lock; /* lock for user-space interface */
+ int num_leds;
+ struct lp55xx_device_config *cfg;
+ enum lp55xx_engine_index engine_idx;
+ struct lp55xx_engine engines[LP55XX_ENGINE_MAX];
+ const struct firmware *fw;
+};
+
+/*
+ * struct lp55xx_led
+ * @chan_nr : Channel number
+ * @cdev : LED class device
+ * @mc_cdev : Multi color class device
+ * @color_components: Multi color LED map information
+ * @led_current : Current setting at each led channel
+ * @max_current : Maximun current at each led channel
+ * @brightness : Brightness value
+ * @chip : The lp55xx chip data
+ */
+struct lp55xx_led {
+ int chan_nr;
+ struct led_classdev cdev;
+ struct led_classdev_mc mc_cdev;
+ u8 led_current;
+ u8 max_current;
+ u8 brightness;
+ struct lp55xx_chip *chip;
+};
+
+/* register access */
+extern int lp55xx_write(struct lp55xx_chip *chip, u8 reg, u8 val);
+extern int lp55xx_read(struct lp55xx_chip *chip, u8 reg, u8 *val);
+extern int lp55xx_update_bits(struct lp55xx_chip *chip, u8 reg,
+ u8 mask, u8 val);
+
+/* external clock detection */
+extern bool lp55xx_is_extclk_used(struct lp55xx_chip *chip);
+
+/* common device init/deinit functions */
+extern int lp55xx_init_device(struct lp55xx_chip *chip);
+extern void lp55xx_deinit_device(struct lp55xx_chip *chip);
+
+/* common LED class device functions */
+extern int lp55xx_register_leds(struct lp55xx_led *led,
+ struct lp55xx_chip *chip);
+
+/* common device attributes functions */
+extern int lp55xx_register_sysfs(struct lp55xx_chip *chip);
+extern void lp55xx_unregister_sysfs(struct lp55xx_chip *chip);
+
+/* common device tree population function */
+extern struct lp55xx_platform_data
+*lp55xx_of_populate_pdata(struct device *dev, struct device_node *np,
+ struct lp55xx_chip *chip);
+
+#endif /* _LEDS_LP55XX_COMMON_H */