delta/linux.git/include/linux/serdev.h, branch proc-cmdline

Merge tag 'tty-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2018-02-01T17:46:00+00:00

Pull tty/staging driver updates from Greg KH:
 "Here is the big tty/serial driver update for 4.16-rc1.

  The usual number of various serial driver fixes and updates to try to
  get them to work with crazy hardware configurations (seriously, how
  many different ways are hardware engineers going to come up with to
  hook up a simple UART?)

  There is also some serdev bugfixes and updates, as well as a
  smattering of other small fixes in here.

  All have been in the linux-next tree for a while, with no reported
  issues"

* tag 'tty-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (65 commits)
  tty: serial: exar: Relocate sleep wake-up handling
  tty: fix data race between tty_init_dev and flush of buf
  serial: imx: fix endless loop during suspend
  serial: core: mark port as initialized after successful IRQ change
  serdev: only match serdev devices
  serdev: do not generate modaliases for controllers
  serial: mxs-auart: don't use GPIOF_* with gpiod_get_direction
  serial: 8250_dw: Revert "Improve clock rate setting"
  MAINTAINERS: Add myself as designated reviewer for 8250_dw
  gpio: serial: max310x: Support open-drain configuration for GPIOs
  serdev: Fix serdev_uevent failure on ACPI enumerated serdev-controllers
  serial: 8250_ingenic: Parse earlycon options
  serial: 8250_ingenic: Add support for the JZ4770 SoC
  serial: core: Make uart_parse_options take const char* argument
  serial: 8250_of: fix return code when probe function fails to get reset
  serial: imx: Only wakeup via RTSDEN bit if the system has RTS/CTS
  serial: 8250_uniphier: fix error return code in uniphier_uart_probe()
  tty: n_gsm: Allow ADM response in addition to UA for control dlci
  tty: omap-serial: Fix initial on-boot RTS GPIO level
  tty: serial: jsm: Add one check against NULL pointer dereference
  ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

2018-01-31T22:31:10+00:00

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

Merge tag 'mfd-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

2018-01-29T18:59:24+00:00

Pull MFD updates from Lee Jones:
 "New Drivers:
   - Add support for RAVE Supervisory Processor

  Moved drivers:
   - Move Realtek Card Reader Driver to Misc

  New Device Support:
   - Add support for Pinctrl to axp20x

  New Functionality:
   - Add resume support to atmel-flexcom

  Fix-ups:
   - Split MFD (mfd) and userspace handlers (platform) in cros_ec
   - Fix trivial (whitespace, spelling) issue(s) in pcf50633-core
   - Clean-up error handling in ab8500-debugfs
   - General tidying up in tmio_core
   - Kconfig fix-ups for qcom-pm8xxx
   - Licensing changes (SPDX) to stm32-lptimer, stm32-timers
   - Device Tree fixups in mc13xxx
   - Simplify/remove unused code in cros_ec_spi, axp20x, ti_am335x_tscadc,
     kempld-core, intel_soc_pmic_core.c, ab8500-debugfs"

* tag 'mfd-next-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (32 commits)
  mfd: lpc_ich: Do not touch SPI-NOR write protection bit on Apollo Lake
  mfd: axp20x: Mark axp288 CHRG_BAK_CTRL register volatile
  mfd: ab8500: Introduce DEFINE_SHOW_ATTRIBUTE() macro
  atmel_flexcom: Support resuming after a chip reset
  mfd: Remove duplicate includes
  dt-bindings: mfd: mc13xxx: Add the unit address to sysled
  mfd: stm32: Adopt SPDX identifier
  mfd: axp20x: Add pinctrl cell for AXP813
  mfd: pm8xxx: Make elegible for COMPILE_TEST
  mfd: kempld-core: Use resource_size function on resource object
  mfd: tmio: Move register macros to tmio_core.c
  mfd: cros ec: spi: Simplify delay handling between SPI messages
  mfd: palmas: Assign the right powerhold mask for tps65917
  mfd: ab8500-debugfs: Use common error handling code in ab8500_print_modem_registers()
  mfd: ti_am335x_tscadc: Remove redundant assignment to node
  mfd: pcf50633: Fix spelling mistake: 'Falied' -> 'Failed'
  dt-bindings: watchdog: Add bindings for RAVE SP watchdog driver
  watchdog: Add RAVE SP watchdog driver
  mfd: Add driver for RAVE Supervisory Processor
  serdev: Introduce devm_serdev_device_open()
  ...

serdev: add method to set parity

2018-01-23T08:16:05+00:00

Adds serdev_device_set_parity() and an implementation for ttyport.
The interface uses an enum with the values SERIAL_PARITY_NONE,
SERIAL_PARITY_EVEN and SERIAL_PARITY_ODD.

Signed-off-by: Ulrich Hecht 
Reviewed-by: Sebastian Reichel 
Reviewed-by: Johan Hovold 
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Marcel Holtmann

serdev: Introduce devm_serdev_device_open()

2018-01-08T10:08:34+00:00

Add code implementing managed version of serdev_device_open() for
serdev device drivers that "open" the device during driver's lifecycle
only once (e.g. opened in .probe() and closed in .remove()).

Acked-by: Philippe Ombredanne 
Acked-by: Pavel Machek 
Acked-by: Rob Herring 
Reviewed-by: Sebastian Reichel 
Reviewed-by: Guenter Roeck 
Signed-off-by: Andrey Smirnov 
Signed-off-by: Lee Jones

Merge 4.15-rc3 into tty-next

2017-12-11T07:41:08+00:00

We want the serial/tty fixes in here as well.

Signed-off-by: Greg Kroah-Hartman

serdev: document driver callbacks

2017-11-28T15:03:35+00:00

Amend the driver-callback kerneldoc with calling context and expected
return values.

Note that this is based on the requirements and characteristics of the
tty-port controller implementation which receives data in workqueue
context and whose write_wakeup callback must not sleep.

Also note that while the receive_buf callback returns an integer, the
returned value is still expected to be non-negative (and no greater than
the buffer-size argument).

Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

serdev: fix receive_buf return value when no callback

2017-11-28T15:00:50+00:00

The receive_buf callback is supposed to return the number of bytes
processed and should specifically not return a negative errno.

Due to missing sanity checks in the serdev tty-port controller, a driver
not providing a receive_buf callback could cause the flush_to_ldisc()
worker to spin in a tight loop when the tty buffer pointers are
incremented with -EINVAL (-22).

The missing sanity checks have now been added to the tty-port
controller, but let's fix up the serdev-controller helper as well.

Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman

serdev: Introduce devm_serdev_device_open()

2017-11-28T14:32:32+00:00

Add code implementing managed version of serdev_device_open() for
serdev device drivers that "open" the device during driver's lifecycle
only once (e.g. opened in .probe() and closed in .remove()).

Cc: linux-kernel@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: Rob Herring 
Cc: cphealy@gmail.com
Cc: Guenter Roeck 
Cc: Lucas Stach 
Cc: Nikita Yushchenko 
Cc: Lee Jones 
Cc: Greg Kroah-Hartman 
Cc: Pavel Machek 
Cc: Andy Shevchenko 
Cc: Johan Hovold 
Cc: Sebastian Reichel 
Acked-by: Rob Herring 
Reviewed-by: Sebastian Reichel 
Reviewed-by: Guenter Roeck 
Signed-off-by: Andrey Smirnov 
Signed-off-by: Greg Kroah-Hartman

tty/serdev: add serdev registration interface

2017-05-18T15:38:24+00:00

Add a new interface for registering a serdev controller and clients, and
a helper function to deregister serdev devices (or a tty device) that
were previously registered using the new interface.

Once every driver currently using the tty_port_register_device() helpers
have been vetted and converted to use the new serdev registration
interface (at least for deregistration), we can move serdev registration
to the current helpers and get rid of the serdev-specific functions.

Reviewed-by: Rob Herring 
Signed-off-by: Johan Hovold 
Signed-off-by: Greg Kroah-Hartman