openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity
linux/drivers
History
Loic Poulain 9a44c1cc63 net: Add a WWAN subsystem 
This change introduces initial support for a WWAN framework. Given the
complexity and heterogeneity of existing WWAN hardwares and interfaces,
there is no strict definition of what a WWAN device is and how it should
be represented. It's often a collection of multiple devices that perform
the global WWAN feature (netdev, tty, chardev, etc).

One usual way to expose modem controls and configuration is via high
level protocols such as the well known AT command protocol, MBIM or
QMI. The USB modems started to expose them as character devices, and
user daemons such as ModemManager learnt to use them.

This initial version adds the concept of WWAN port, which is a logical
pipe to a modem control protocol. The protocols are rawly exposed to
user via character device, allowing straigthforward support in existing
tools (ModemManager, ofono...). The WWAN core takes care of the generic
part, including character device management, and relies on port driver
operations to receive/submit protocol data.

Since the different devices exposing protocols for a same WWAN hardware
do not necessarily know about each others (e.g. two different USB
interfaces, PCI/MHI channel devices...) and can be created/removed in
different orders, the WWAN core ensures that all WAN ports contributing
to the 'whole' WWAN feature are grouped under the same virtual WWAN
device, relying on the provided parent device (e.g. mhi controller,
USB device). It's a 'trick' I copied from Johannes's earlier WWAN
subsystem proposal.

This initial version is purposely minimalist, it's essentially moving
the generic part of the previously proposed mhi_wwan_ctrl driver inside
a common WWAN framework, but the implementation is open and flexible
enough to allow extension for further drivers.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2021-04-16 15:31:02 -07:00
..
accessibility Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
acpi ACPI: processor: Fix build when CONFIG_ACPI_PROCESSOR=m 2021-04-07 19:02:43 +02:00
amba amba: Make use of bus_type functions 2021-02-02 14:26:02 +01:00
android fs: make helpers idmap mount aware 2021-01-24 14:27:20 +01:00
ata ata: Avoid comma separated statements 2021-01-31 08:05:46 -07:00
atm atm: idt77252: remove unused function 2021-04-14 13:52:59 -07:00
auxdisplay auxdisplay: Remove in_interrupt() usage. 2021-03-16 16:32:40 +01:00
base Driver core fix for 5.12-rc6 2021-04-03 10:14:47 -07:00
bcma
…
block block-5.12-2021-04-02 2021-04-02 16:13:13 -07:00
bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
bus ARM: mvebu: avoid clang -Wtautological-constant warning 2021-04-01 16:32:38 +02:00
cdrom block: remove unnecessary argument from blk_execute_rq 2021-01-24 21:52:39 -07:00
char parisc: parisc-agp requires SBA IOMMU driver 2021-04-06 11:46:39 +02:00
clk clk: qcom: gcc-sc7180: Use floor ops for the correct sdcc1 clk 2021-03-13 13:00:05 -08:00
clocksource A small set of clockevent fixes which fell through the cracks 2021-02-22 14:11:36 -08:00
connector
…
counter counter: stm32-timer-cnt: fix ceiling miss-alignment with reload register 2021-03-06 16:48:09 +00:00
cpufreq cpufreq: Fix scaling_{available,boost}_frequencies_show() comments 2021-03-26 17:43:48 +01:00
cpuidle
…
crypto vio: make remove callback return void 2021-03-02 22:41:23 +11:00
cxl cxl/mem: Fix potential memory leak 2021-02-22 14:44:39 -08:00
dax Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
dca
…
devfreq Merge branches 'pm-devfreq' and 'pm-tools' 2021-02-15 17:02:04 +01:00
dio
…
dma dmaengine updates for v5.12-rc1 2021-02-23 15:05:10 -08:00
dma-buf dma-fence: allow signaling drivers to set fence timestamp 2021-02-24 21:05:28 +05:30
edac Merge branch 'edac-misc' into edac-updates-for-v5.12 2021-02-15 10:06:58 +01:00
eisa
…
extcon extcon: Fix error handling in extcon_dev_register 2021-03-15 11:09:38 +09:00
firewire firewire: nosy: Fix a use-after-free bug in nosy_ioctl() 2021-04-04 14:05:45 -07:00
firmware Another couple of EFI fixes for v5.12-rc: 2021-03-19 14:23:46 +01:00
fpga
…
fsi
…
gnss
…
gpio gpiolib: Assign fwnode to parent's if no primary one provided 2021-03-16 10:18:08 +01:00
gpu - Fix invalid access to ACPI _DSM objects (Takashi) 2021-04-10 05:18:35 +10:00
greybus greybus: es2: drop short control-transfer checks 2021-01-26 19:20:11 +01:00
hid Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 2021-02-23 14:52:22 -08:00
hsi
…
hv mm/memory_hotplug: MEMHP_MERGE_RESOURCE -> MHP_MERGE_RESOURCE 2021-02-26 09:41:00 -08:00
hwmon Devicetree updates for v5.12: 2021-02-22 10:05:12 -08:00
hwspinlock hwspinlock: omap: Add support for K3 AM64x SoCs 2021-02-09 11:36:50 -06:00
hwtracing ARM updates for 5.12-rc1: 2021-02-22 14:27:07 -08:00
i2c i2c: exynos5: Preserve high speed master code 2021-02-26 11:47:42 +01:00
i3c I3C for 5.12 2021-02-22 09:52:55 -08:00
ide ide-5.11-2021-02-28 2021-02-28 15:48:25 -08:00
idle intel_idle: remove definition of DEBUG 2021-01-22 16:46:16 +01:00
iio First set of IIO and counter fixes for the 5.12 cycle 2021-03-15 16:34:39 +01:00
infiniband Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
input module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
interconnect interconnect: Fix kerneldoc warning 2021-03-18 23:46:21 +02:00
iommu iommu/tegra-smmu: Make tegra_smmu_probe_device() to handle all IOMMU phandles 2021-03-18 11:31:12 +01:00
ipack ipack: Handle a driver without remove callback 2021-02-09 09:48:23 +01:00
irqchip irqchip/ingenic: Add support for the JZ4760 2021-03-09 08:45:17 +00:00
isdn mISDN: Use LIST_HEAD() for list_head 2021-03-30 13:34:42 -07:00
leds leds: trigger/tty: Use led_set_brightness_sync() from workqueue 2021-03-10 09:27:56 +01:00
lightnvm lightnvm: pblk: Replace guid_copy() with export_guid()/import_guid() 2021-02-14 21:27:24 -07:00
macintosh macintosh/adb-iop: Use big-endian autopoll mask 2021-01-25 13:23:38 +01:00
mailbox mailbox: arm_mhuv2: Skip calling kfree() with invalid pointer 2021-02-22 13:34:27 -06:00
mcb
…
md dm ioctl: fix out of bounds array access when no devices 2021-03-26 14:51:50 -04:00
media module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
memory Char/Misc driver patches for 5.12-rc1 2021-02-24 10:25:37 -08:00
memstick
…
message scsi: message: fusion: Fix 'physical' typos 2021-01-26 23:25:16 -05:00
mfd mfd: intel_quark_i2c_gpio: Revert "Constify static struct resources" 2021-03-23 09:14:12 +00:00
misc mei: allow map and unmap of client dma buffer only for disconnected client 2021-03-23 15:15:15 +01:00
mmc mmc: cqhci: Fix random crash when remove mmc module/card 2021-03-09 10:00:52 +01:00
most most: core: Constify static attribute_group structs 2021-01-26 19:24:51 +01:00
mtd module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
mux
…
net net: Add a WWAN subsystem 2021-04-16 15:31:02 -07:00
nfc nfc: st-nci: remove unnecessary label 2021-04-13 14:50:57 -07:00
ntb NTB: Add support for EPF PCI Non-Transparent Bridge 2021-02-23 14:12:53 -06:00
nubus
…
nvdimm libnvdimm + device-dax for 5.12 2021-02-24 09:35:54 -08:00
nvme nvmet-tcp: fix kmap leak when data digest in use 2021-03-18 05:39:18 +01:00
nvmem nvmem: qcom-spmi-sdam: Fix uninitialized pdev pointer 2021-02-05 11:25:52 +01:00
of of: net: fix of_get_mac_addr_nvmem() for non-platform devices 2021-04-13 14:35:02 -07:00
opp opp: Don't drop extra references to OPPs accidentally 2021-03-12 09:26:52 +05:30
parisc
…
parport module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
pci Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux 2021-04-09 18:07:21 -07:00
pcmcia Merge branch 'pcmcia-next' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/linux 2021-02-26 13:54:43 -08:00
perf perf/arm_dmc620_pmu: Fix error return code in dmc620_pmu_device_probe() 2021-03-12 11:30:31 +00:00
phy time64.h: Consolidated PSEC_PER_SEC definition 2021-04-06 16:32:17 -07:00
pinctrl intel-pinctrl for v5.12-3 2021-03-30 00:46:49 +02:00
platform platform/x86: intel-hid: Fix spurious wakeups caused by tablet-mode events during suspend 2021-04-06 22:10:21 +02:00
pnp PNP: pnpbios: Use DEFINE_SPINLOCK() for spinlock 2021-01-22 16:22:57 +01:00
power power-supply: use kobj_to_dev() 2021-01-28 01:31:42 +01:00
powercap powercap/drivers/dtpm: Add the experimental label to the option description 2021-03-01 17:43:29 +01:00
pps
…
ps3
…
ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
pwm pwm: Changes for v5.12-rc1 2021-02-25 12:23:49 -08:00
rapidio rapidio: fix kernel-doc a markup 2021-01-21 14:06:00 -07:00
ras
…
regulator regulator: bd9571mwv: Convert device attribute to sysfs_emit() 2021-03-15 15:42:12 +00:00
remoteproc remoteproc: pru: Fix firmware loading crashes on K3 SoCs 2021-03-17 14:15:07 -05:00
reset RISC-V Patches for the 5.12 Merge Window 2021-02-26 10:28:35 -08:00
rpmsg
…
rtc Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2021-02-27 08:07:12 -08:00
s390 mld: convert ifmcaddr6 to RCU 2021-03-26 15:14:56 -07:00
sbus module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-04-09 20:48:35 -07:00
sh module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
siox
…
slimbus
…
soc ARM SoC fixes for v5.12, part 2 2021-04-07 09:26:50 -07:00
soundwire ALSA: hda: move Intel SoundWire ACPI scan to dedicated module 2021-03-02 15:33:00 +01:00
spi spi: cadence: set cqspi to the driver_data field of struct device 2021-03-11 13:32:32 +00:00
spmi spmi: spmi-pmic-arb: Fix hw_irq overflow 2021-02-12 12:26:46 +01:00
ssb
…
staging of: net: pass the dst buffer to of_get_mac_address() 2021-04-13 14:35:02 -07:00
target scsi: target: pscsi: Clean up after failure in pscsi_map_sg() 2021-03-24 23:19:23 -04:00
tc
…
tee module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
thermal thermal/core: Add NULL pointer check before using cooling device stats 2021-03-17 09:55:58 +01:00
thunderbolt thunderbolt: Increase runtime PM reference count on DP tunnel discovery 2021-03-08 14:22:42 +03:00
tty Serial driver fix for 5.12-rc6 2021-04-03 10:00:53 -07:00
uio uio: uio_pci_generic: don't fail probe if pdev->irq equals to IRQ_NOTCONNECTED 2021-02-09 12:25:32 +01:00
usb usb: dwc2: Prevent core suspend when port connection flag is 0 2021-03-26 14:51:34 +01:00
vdpa vdpa/mlx5: Fix suspend/resume index restoration 2021-04-09 12:08:28 -04:00
vfio vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends 2021-03-29 14:48:00 -06:00
vhost virtio: fixes, cleanups 2021-03-18 11:20:35 -07:00
video hyperv-fixes for 5.12-rc6 2021-04-03 10:42:20 -07:00
virt virt: acrn: Correct type casting of argument of copy_from_user() 2021-03-10 16:59:50 +01:00
virtio virtio: fixes, cleanups 2021-03-18 11:20:35 -07:00
visorbus
…
vlynq
…
vme vme: make remove callback return void 2021-02-09 12:15:07 +01:00
w1 w1: w1_therm: Fix conversion result for negative temperatures 2021-01-27 14:59:16 +01:00
watchdog module: remove never implemented MODULE_SUPPORTED_DEVICE 2021-03-17 13:16:18 -07:00
xen xen: branch for v5.12-rc7 2021-04-09 09:58:42 -07:00
zorro
…
Kconfig cxl/mem: Introduce a driver for CXL-2.0-Type-3 endpoints 2021-02-16 20:36:38 -08:00
Makefile Simple Firmware Interface (SFI) support removal for v5.12-rc1 2021-02-24 10:35:29 -08:00