kernel/linux.git/include/linux/serdev.h, branch v6.6.132

serdev: Add method to assert break signal over tty UART port

2023-04-24T04:51:25+00:00

Adds serdev_device_break_ctl() and an implementation for ttyport. This function simply calls the break_ctl in tty layer, which can assert a break signal over UART-TX line, if the tty and the underlying platform and UART peripheral supports this operation. Signed-off-by: Neeraj Sanjay Kale Reviewed-by: Simon Horman Signed-off-by: Luiz Augusto von Dentz

serdev: Replace all instances of ENOTSUPP with EOPNOTSUPP

2023-04-24T04:51:11+00:00

This replaces all instances of ENOTSUPP with EOPNOTSUPP since ENOTSUPP is not a standard error code. This will help maintain consistency in error codes when new serdev API's are added. Signed-off-by: Neeraj Sanjay Kale Reviewed-by: Simon Horman Signed-off-by: Luiz Augusto von Dentz

serdev: Replace poll loop by readx_poll_timeout() macro

2022-11-22T16:53:10+00:00

The readx_poll_timeout() consolidates the necessary code under macro. Replace current code with it. Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20221114151813.37294-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

termios: get rid of non-UAPI asm/termios.h

2022-09-09T08:44:35+00:00

All non-UAPI asm/termios.h consist of include of UAPI counterpart and, possibly, include of linux/uaccess.h The latter can't be simply removed, even though nothing in linux/termios.h doesn't depend upon it anymore - there are several places that rely upon that indirect chain of includes to pull linux/uaccess.h. So the include needs to be lifted out of there - we lift into tty_driver.h, serdev.h and places that pull asm/termios.h, but none of * linux/uaccess.h (obvious) * net/sock.h (pulls uaccess.h) * linux/{tty,tty_driver,serdev}.h (tty.h pulls tty_driver.h) That leaves us just with the include of UAPI asm/termios.h, which is what will resolve to if we simply remove non-UAPI header. Signed-off-by: Al Viro Link: https://lore.kernel.org/r/YxDnKvYCHn/ogBUv@ZenIV Signed-off-by: Greg Kroah-Hartman

serdev: Split and export serdev_acpi_get_uart_resource()

2021-08-13T07:12:53+00:00

The same as for I²C Serial Bus resource split and export serdev_acpi_get_uart_resource(). We have already a few users one of which is converted here. Rationale of this is to consolidate parsing UART Serial Bus resource in one place as it's done, e.g., for I²C Serial Bus. Reviewed-by: Hans de Goede Acked-by: Hans de Goede Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210806111736.66591-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284

2019-06-05T15:36:37+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Reviewed-by: Alexios Zavras Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman

serdev: make synchronous write helper interruptible

2018-11-27T18:44:21+00:00

Allow the synchronous serdev_device_write() helper to be interrupted. This is useful for cases where I/O is performed on behalf of user space and we don't want to block indefinitely when using flow control. Signed-off-by: Johan Hovold Reviewed-by: Rob Herring Signed-off-by: Greg Kroah-Hartman

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() ...