linux.git/Documentation/devicetree/bindings/serial, branch v5.15

Merge tag 'devicetree-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

2021-09-02T01:34:51+00:00

Pull devicetree updates from Rob Herring:

 - Refactor arch kdump DT related code to a common implementation

 - Add fw_devlink tracking for 'phy-handle', 'leds', 'backlight',
   'resets', and 'pwm' properties

 - Various clean-ups to DT FDT code

 - Fix a runtime error for !CONFIG_SYSFS

 - Convert Synopsys DW PCI and derivative binding docs to schemas. Add
   Toshiba Visconti PCIe binding.

 - Convert a bunch of memory controller bindings to schemas

 - Covert eeprom-93xx46, Samsung Exynos TRNG, Samsung Exynos IRQ
   combiner, arm-charlcd, img-ascii-lcd, UniPhier eFuse, Xilinx Zynq
   MPSoC FPGA, Xilinx Zynq MPSoC reset, Mediatek mmsys, Gemini boards,
   brcm,iproc-i2c, faraday,ftpci100, and ks8851 net to DT schema.

 - Extend nvmem bindings to handle bit offsets in unit-addresses

 - Add DT schemas for HiKey 970 PCIe PHY

 - Remove unused ZTE, energymicro,efm32-timer, and Exynos SATA bindings

 - Enable dtc pci_device_reg warning by default

 - Fixes for handling 'unevaluatedProperties' in preparation to enable
   pending support in the tooling for jsonschema 2020-12 draft

* tag 'devicetree-for-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits)
  dt-bindings: display: remove zte,vou.txt binding doc
  dt-bindings: hwmon: merge max1619 into trivial devices
  dt-bindings: mtd-physmap: Add 'arm,vexpress-flash' compatible
  dt-bindings: PCI: imx6: convert the imx pcie controller to dtschema
  dt-bindings: Use 'enum' instead of 'oneOf' plus 'const' entries
  dt-bindings: Add vendor prefix for Topic Embedded Systems
  of: fdt: Rename reserve_elfcorehdr() to fdt_reserve_elfcorehdr()
  arm64: kdump: Remove custom linux,usable-memory-range handling
  arm64: kdump: Remove custom linux,elfcorehdr handling
  riscv: Remove non-standard linux,elfcorehdr handling
  of: fdt: Use IS_ENABLED(CONFIG_BLK_DEV_INITRD) instead of #ifdef
  of: fdt: Add generic support for handling usable memory range property
  of: fdt: Add generic support for handling elf core headers property
  crash_dump: Make elfcorehdr address/size symbols always visible
  dt-bindings: memory: convert Samsung Exynos DMC to dtschema
  dt-bindings: devfreq: event: convert Samsung Exynos PPMU to dtschema
  dt-bindings: devfreq: event: convert Samsung Exynos NoCP to dtschema
  kbuild: Enable dtc 'pci_device_reg' warning by default
  dt-bindings: soc: remove obsolete zte zx header
  dt-bindings: clock: remove obsolete zte zx header
  ...

dt-bindings: Use 'enum' instead of 'oneOf' plus 'const' entries

2021-08-30T12:01:24+00:00

'enum' is equivalent to 'oneOf' with a list of 'const' entries, but 'enum'
is more concise and yields better error messages.

Cc: Maxime Ripard 
Cc: Vignesh R 
Cc: Marc Zyngier 
Cc: Mauro Carvalho Chehab 
Cc: Lee Jones 
Cc: "David S. Miller" 
Cc: Jakub Kicinski 
Cc: Bjorn Helgaas 
Cc: Kishon Vijay Abraham I 
Cc: Daniel Lezcano 
Cc: dmaengine@vger.kernel.org
Cc: linux-i2c@vger.kernel.org
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: linux-pci@vger.kernel.org
Cc: linux-phy@lists.infradead.org
Cc: linux-serial@vger.kernel.org
Cc: alsa-devel@alsa-project.org
Cc: linux-spi@vger.kernel.org
Acked-by: Sakari Ailus  (mipi-ccs)
Acked-by: Mark Brown 
Reviewed-by: Vinod Koul 
Acked-By: Vinod Koul 
Acked-by: Wolfram Sang  # for I2C
Acked-by: Greg Kroah-Hartman 
Signed-off-by: Rob Herring 
Link: https://lore.kernel.org/r/20210824202014.978922-1-robh@kernel.org

dt-bindings: serial: 8250: Update for standard overrun-throttle property

2021-08-05T12:01:25+00:00

In some cases we want to specify overrun-throttle like other 8250 drivers
are doing.

Cc: devicetree@vger.kernel.org
Cc: Rob Herring 
Cc: Vignesh Raghavendra 
Acked-by: Rob Herring 
Signed-off-by: Tony Lindgren 
Link: https://lore.kernel.org/r/20210727103533.51547-1-tony@atomide.com
Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: Add compatible for Mediatek MT7986

2021-07-27T10:19:49+00:00

This commit adds dt-binding documentation of uart for Mediatek MT7986 SoC
Platform.

Signed-off-by: Sam Shih 
Link: https://lore.kernel.org/r/20210726071439.14248-10-sam.shih@mediatek.com
Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: 8250: Add Exar compatibles

2021-07-27T10:08:03+00:00

The Intel IXP425 Vulcan board has an Exar XR16L2551 8250-compatible.
It works like an 8250 but it is always good to specify exactly which
component we are using. This allows us to specify:

compatible = "exar,xr16l2551", "ns8250";

Put in some sibling Exar serial compatibles while we're at it.

Cc: Marc Zyngier 
Cc: devicetree@vger.kernel.org
Acked-by: Rob Herring 
Signed-off-by: Linus Walleij 
Link: https://lore.kernel.org/r/20210716225319.1282704-1-linus.walleij@linaro.org
Signed-off-by: Greg Kroah-Hartman

dt-bindings: serial: convert Cadence UART bindings to YAML

2021-07-21T10:47:14+00:00

Convert serial for Cadence UART bindings documentation to YAML.

Reviewed-by: Rob Herring 
Signed-off-by: Nobuhiro Iwamatsu 
Link: https://lore.kernel.org/r/20210715092252.225740-1-iwamatsu@nigauri.org
Signed-off-by: Greg Kroah-Hartman

Merge tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2021-07-05T21:08:24+00:00

Pull tty / serial updates from Greg KH:
 "Here is the big set of tty and serial driver patches for 5.14-rc1.

  A bit more than normal, but nothing major, lots of cleanups.
  Highlights are:

   - lots of tty api cleanups and mxser driver cleanups from Jiri

   - build warning fixes

   - various serial driver updates

   - coding style cleanups

   - various tty driver minor fixes and updates

   - removal of broken and disable r3964 line discipline (finally!)

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'tty-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (227 commits)
  serial: mvebu-uart: remove unused member nb from struct mvebu_uart
  arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART
  dt-bindings: mvebu-uart: fix documentation
  serial: mvebu-uart: correctly calculate minimal possible baudrate
  serial: mvebu-uart: do not allow changing baudrate when uartclk is not available
  serial: mvebu-uart: fix calculation of clock divisor
  tty: make linux/tty_flip.h self-contained
  serial: Prefer unsigned int to bare use of unsigned
  serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs
  serial: qcom_geni_serial: use DT aliases according to DT bindings
  Revert "tty: serial: Add UART driver for Cortina-Access platform"
  tty: serial: Add UART driver for Cortina-Access platform
  MAINTAINERS: add me back as mxser maintainer
  mxser: Documentation, fix typos
  mxser: Documentation, make the docs up-to-date
  mxser: Documentation, remove traces of callout device
  mxser: introduce mxser_16550A_or_MUST helper
  mxser: rename flags to old_speed in mxser_set_serial_info
  mxser: use port variable in mxser_set_serial_info
  mxser: access info->MCR under info->slock
  ...

dt-bindings: mvebu-uart: fix documentation

2021-06-25T11:53:38+00:00

Both UARTs support higher baudrates and are not limited to baudrate 230400.
Only current kernel driver implementation has limitation for both UARTs in
maximal baudrate 230400. This limitation will be removed in next patches.
So remove incorrect information about (hardware) limitation from bindings.

UART1 (standard variant with DT node name 'uart0') has register space
0x12000-0x12018 and not whole size 0x200. So fix also this in example.

Signed-off-by: Pali Rohár 
Fixes: d160c3413478 ("dt-bindings: mvebu-uart: update documentation with extended UART")
Link: https://lore.kernel.org/r/20210624224909.6350-5-pali@kernel.org
Signed-off-by: Greg Kroah-Hartman

dt-bindings: Drop redundant minItems/maxItems

2021-06-21T19:56:46+00:00

If a property has an 'items' list, then a 'minItems' or 'maxItems' with the
same size as the list is redundant and can be dropped. Note that is DT
schema specific behavior and not standard json-schema behavior. The tooling
will fixup the final schema adding any unspecified minItems/maxItems.

This condition is partially checked with the meta-schema already, but
only if both 'minItems' and 'maxItems' are equal to the 'items' length.
An improved meta-schema is pending.

Cc: Jens Axboe 
Cc: Stephen Boyd 
Cc: Herbert Xu 
Cc: "David S. Miller" 
Cc: David Airlie 
Cc: Daniel Vetter 
Cc: Bartosz Golaszewski 
Cc: Kamal Dasu 
Cc: Lars-Peter Clausen 
Cc: Thomas Gleixner 
Cc: Marc Zyngier 
Cc: Joerg Roedel 
Cc: Mauro Carvalho Chehab 
Cc: Krzysztof Kozlowski 
Cc: Jakub Kicinski 
Cc: Wolfgang Grandegger 
Cc: Andrew Lunn 
Cc: Vivien Didelot 
Cc: Vladimir Oltean 
Cc: Bjorn Helgaas 
Cc: Kishon Vijay Abraham I 
Cc: Linus Walleij 
Cc: "Uwe Kleine-König" 
Cc: Lee Jones 
Cc: Ohad Ben-Cohen 
Cc: Mathieu Poirier 
Cc: Paul Walmsley 
Cc: Palmer Dabbelt 
Cc: Albert Ou 
Cc: Alessandro Zummo 
Cc: Alexandre Belloni 
Cc: Zhang Rui 
Cc: Daniel Lezcano 
Cc: Wim Van Sebroeck 
Cc: Guenter Roeck 
Signed-off-by: Rob Herring 
Acked-by: Marc Kleine-Budde 
Acked-by: Ulf Hansson  # for MMC
Acked-by: Jassi Brar 
Acked-By: Vinod Koul 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Arnaud Pouliquen 
Acked-by: Mark Brown 
Acked-by: Philipp Zabel 
Acked-by: Wolfram Sang  # for I2C
Acked-by: Jonathan Cameron 
Link: https://lore.kernel.org/r/20210615191543.1043414-1-robh@kernel.org

dt-bindings: serial: Move omap-serial.txt to YAML schema

2021-06-16T07:20:29+00:00

Convert serial-omap.txt to YAML schema for better checks and documentation.

Acked-by: Tony Lindgren 
Signed-off-by: Vignesh Raghavendra 
Link: https://lore.kernel.org/r/20210610182227.2480-1-vigneshr@ti.com
Signed-off-by: Greg Kroah-Hartman