diff options
author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/input/misc/mc13783-pwrbutton.c | |
download | linux-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/misc/mc13783-pwrbutton.c')
-rw-r--r-- | drivers/input/misc/mc13783-pwrbutton.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc13783-pwrbutton.c new file mode 100644 index 000000000..0636eee4b --- /dev/null +++ b/drivers/input/misc/mc13783-pwrbutton.c @@ -0,0 +1,269 @@ +/* + * Copyright (C) 2011 Philippe Rétornaz + * + * Based on twl4030-pwrbutton driver by: + * Peter De Schrijver <peter.de-schrijver@nokia.com> + * Felipe Balbi <felipe.balbi@nokia.com> + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of this + * archive for more details. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/input.h> +#include <linux/interrupt.h> +#include <linux/platform_device.h> +#include <linux/mfd/mc13783.h> +#include <linux/sched.h> +#include <linux/slab.h> + +struct mc13783_pwrb { + struct input_dev *pwr; + struct mc13xxx *mc13783; +#define MC13783_PWRB_B1_POL_INVERT (1 << 0) +#define MC13783_PWRB_B2_POL_INVERT (1 << 1) +#define MC13783_PWRB_B3_POL_INVERT (1 << 2) + int flags; + unsigned short keymap[3]; +}; + +#define MC13783_REG_INTERRUPT_SENSE_1 5 +#define MC13783_IRQSENSE1_ONOFD1S (1 << 3) +#define MC13783_IRQSENSE1_ONOFD2S (1 << 4) +#define MC13783_IRQSENSE1_ONOFD3S (1 << 5) + +#define MC13783_REG_POWER_CONTROL_2 15 +#define MC13783_POWER_CONTROL_2_ON1BDBNC 4 +#define MC13783_POWER_CONTROL_2_ON2BDBNC 6 +#define MC13783_POWER_CONTROL_2_ON3BDBNC 8 +#define MC13783_POWER_CONTROL_2_ON1BRSTEN (1 << 1) +#define MC13783_POWER_CONTROL_2_ON2BRSTEN (1 << 2) +#define MC13783_POWER_CONTROL_2_ON3BRSTEN (1 << 3) + +static irqreturn_t button_irq(int irq, void *_priv) +{ + struct mc13783_pwrb *priv = _priv; + int val; + + mc13xxx_irq_ack(priv->mc13783, irq); + mc13xxx_reg_read(priv->mc13783, MC13783_REG_INTERRUPT_SENSE_1, &val); + + switch (irq) { + case MC13783_IRQ_ONOFD1: + val = val & MC13783_IRQSENSE1_ONOFD1S ? 1 : 0; + if (priv->flags & MC13783_PWRB_B1_POL_INVERT) + val ^= 1; + input_report_key(priv->pwr, priv->keymap[0], val); + break; + + case MC13783_IRQ_ONOFD2: + val = val & MC13783_IRQSENSE1_ONOFD2S ? 1 : 0; + if (priv->flags & MC13783_PWRB_B2_POL_INVERT) + val ^= 1; + input_report_key(priv->pwr, priv->keymap[1], val); + break; + + case MC13783_IRQ_ONOFD3: + val = val & MC13783_IRQSENSE1_ONOFD3S ? 1 : 0; + if (priv->flags & MC13783_PWRB_B3_POL_INVERT) + val ^= 1; + input_report_key(priv->pwr, priv->keymap[2], val); + break; + } + + input_sync(priv->pwr); + + return IRQ_HANDLED; +} + +static int mc13783_pwrbutton_probe(struct platform_device *pdev) +{ + const struct mc13xxx_buttons_platform_data *pdata; + struct mc13xxx *mc13783 = dev_get_drvdata(pdev->dev.parent); + struct input_dev *pwr; + struct mc13783_pwrb *priv; + int err = 0; + int reg = 0; + + pdata = dev_get_platdata(&pdev->dev); + if (!pdata) { + dev_err(&pdev->dev, "missing platform data\n"); + return -ENODEV; + } + + pwr = input_allocate_device(); + if (!pwr) { + dev_dbg(&pdev->dev, "Can't allocate power button\n"); + return -ENOMEM; + } + + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + err = -ENOMEM; + dev_dbg(&pdev->dev, "Can't allocate power button\n"); + goto free_input_dev; + } + + reg |= (pdata->b1on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON1BDBNC; + reg |= (pdata->b2on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON2BDBNC; + reg |= (pdata->b3on_flags & 0x3) << MC13783_POWER_CONTROL_2_ON3BDBNC; + + priv->pwr = pwr; + priv->mc13783 = mc13783; + + mc13xxx_lock(mc13783); + + if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) { + priv->keymap[0] = pdata->b1on_key; + if (pdata->b1on_key != KEY_RESERVED) + __set_bit(pdata->b1on_key, pwr->keybit); + + if (pdata->b1on_flags & MC13783_BUTTON_POL_INVERT) + priv->flags |= MC13783_PWRB_B1_POL_INVERT; + + if (pdata->b1on_flags & MC13783_BUTTON_RESET_EN) + reg |= MC13783_POWER_CONTROL_2_ON1BRSTEN; + + err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD1, + button_irq, "b1on", priv); + if (err) { + dev_dbg(&pdev->dev, "Can't request irq\n"); + goto free_priv; + } + } + + if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) { + priv->keymap[1] = pdata->b2on_key; + if (pdata->b2on_key != KEY_RESERVED) + __set_bit(pdata->b2on_key, pwr->keybit); + + if (pdata->b2on_flags & MC13783_BUTTON_POL_INVERT) + priv->flags |= MC13783_PWRB_B2_POL_INVERT; + + if (pdata->b2on_flags & MC13783_BUTTON_RESET_EN) + reg |= MC13783_POWER_CONTROL_2_ON2BRSTEN; + + err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD2, + button_irq, "b2on", priv); + if (err) { + dev_dbg(&pdev->dev, "Can't request irq\n"); + goto free_irq_b1; + } + } + + if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) { + priv->keymap[2] = pdata->b3on_key; + if (pdata->b3on_key != KEY_RESERVED) + __set_bit(pdata->b3on_key, pwr->keybit); + + if (pdata->b3on_flags & MC13783_BUTTON_POL_INVERT) + priv->flags |= MC13783_PWRB_B3_POL_INVERT; + + if (pdata->b3on_flags & MC13783_BUTTON_RESET_EN) + reg |= MC13783_POWER_CONTROL_2_ON3BRSTEN; + + err = mc13xxx_irq_request(mc13783, MC13783_IRQ_ONOFD3, + button_irq, "b3on", priv); + if (err) { + dev_dbg(&pdev->dev, "Can't request irq: %d\n", err); + goto free_irq_b2; + } + } + + mc13xxx_reg_rmw(mc13783, MC13783_REG_POWER_CONTROL_2, 0x3FE, reg); + + mc13xxx_unlock(mc13783); + + pwr->name = "mc13783_pwrbutton"; + pwr->phys = "mc13783_pwrbutton/input0"; + pwr->dev.parent = &pdev->dev; + + pwr->keycode = priv->keymap; + pwr->keycodemax = ARRAY_SIZE(priv->keymap); + pwr->keycodesize = sizeof(priv->keymap[0]); + __set_bit(EV_KEY, pwr->evbit); + + err = input_register_device(pwr); + if (err) { + dev_dbg(&pdev->dev, "Can't register power button: %d\n", err); + goto free_irq; + } + + platform_set_drvdata(pdev, priv); + + return 0; + +free_irq: + mc13xxx_lock(mc13783); + + if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD3, priv); + +free_irq_b2: + if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD2, priv); + +free_irq_b1: + if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(mc13783, MC13783_IRQ_ONOFD1, priv); + +free_priv: + mc13xxx_unlock(mc13783); + kfree(priv); + +free_input_dev: + input_free_device(pwr); + + return err; +} + +static int mc13783_pwrbutton_remove(struct platform_device *pdev) +{ + struct mc13783_pwrb *priv = platform_get_drvdata(pdev); + const struct mc13xxx_buttons_platform_data *pdata; + + pdata = dev_get_platdata(&pdev->dev); + + mc13xxx_lock(priv->mc13783); + + if (pdata->b3on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD3, priv); + if (pdata->b2on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD2, priv); + if (pdata->b1on_flags & MC13783_BUTTON_ENABLE) + mc13xxx_irq_free(priv->mc13783, MC13783_IRQ_ONOFD1, priv); + + mc13xxx_unlock(priv->mc13783); + + input_unregister_device(priv->pwr); + kfree(priv); + + return 0; +} + +static struct platform_driver mc13783_pwrbutton_driver = { + .probe = mc13783_pwrbutton_probe, + .remove = mc13783_pwrbutton_remove, + .driver = { + .name = "mc13783-pwrbutton", + }, +}; + +module_platform_driver(mc13783_pwrbutton_driver); + +MODULE_ALIAS("platform:mc13783-pwrbutton"); +MODULE_DESCRIPTION("MC13783 Power Button"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Philippe Retornaz"); |