diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 12:17:25 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-22 12:17:25 -0800 |
commit | 37c85961c3f87f2141c84e53df31e59db072fd2e (patch) | |
tree | ff020df86c8c893e4524dda9205254be202560cc | |
parent | caa59428971d5ad81d19512365c9ba580d83268c (diff) | |
parent | d8a4995bcea168dfac8ee41c28c79109907e4fba (diff) |
Merge tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the big tty/serial driver patchset for 4.11-rc1.
Not much here, but a lot of little fixes and individual serial driver
updates all over the subsystem. Majority are for the sh-sci driver and
platform (the arch-specific changes have acks from the maintainer).
The start of the "serial bus" code is here as well, but nothing is
converted to use it yet. That work is still ongoing, hopefully will
start to show up across different subsystems for 4.12 (bluetooth is
one major place that will be used.)
All of these have been in linux-next for a while with no reported
issues"
* tag 'tty-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (109 commits)
tty: pl011: Work around QDF2400 E44 stuck BUSY bit
atmel_serial: Use the fractional divider when possible
tty: Remove extra include in HVC console tty framework
serial: exar: Enable MSI support
serial: exar: Move register defines from uapi header to consumer site
serial: pci: Remove unused pci_boards entries
serial: exar: Move Commtech adapters to 8250_exar as well
serial: exar: Fix feature control register constants
serial: exar: Fix initialization of EXAR registers for ports > 0
serial: exar: Fix mapping of port I/O resources
serial: sh-sci: fix hardware RX trigger level setting
tty/serial: atmel: ensure state is restored after suspending
serial: 8250_dw: Avoid "too much work" from bogus rx timeout interrupt
serdev: ttyport: check whether tty_init_dev() fails
serial: 8250_pci: make pciserial_detach_ports() static
ARM: dts: STiH410-b2260: Enable HW flow-control
ARM: dts: STiH407-family: Use new Pinctrl groups
ARM: dts: STiH407-pinctrl: Add Pinctrl group for HW flow-control
ARM: dts: STiH410-b2260: Identify the UART RTS line
dt-bindings: serial: Update 'uart-has-rtscts' description
...
116 files changed, 3057 insertions, 1640 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 608ba95d9461..d05533e6120b 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -957,6 +957,12 @@ serial port must already be setup and configured. Options are not yet supported. + lantiq,<addr> + Start an early, polled-mode console on a lantiq serial + (lqasc) port at the specified address. The serial port + must already be setup and configured. Options are not + yet supported. + lpuart,<addr> lpuart32,<addr> Use early console provided by Freescale LP UART driver diff --git a/Documentation/devicetree/bindings/serial/8250.txt b/Documentation/devicetree/bindings/serial/8250.txt index f86bb06c39e9..10276a46ecef 100644 --- a/Documentation/devicetree/bindings/serial/8250.txt +++ b/Documentation/devicetree/bindings/serial/8250.txt @@ -19,6 +19,7 @@ Required properties: - "altr,16550-FIFO128" - "fsl,16550-FIFO64" - "fsl,ns16550" + - "ti,da830-uart" - "serial" if the port type is unknown. - reg : offset and length of the register set for the device. - interrupts : should contain uart interrupt. diff --git a/Documentation/devicetree/bindings/serial/serial.txt b/Documentation/devicetree/bindings/serial/serial.txt index fd970f76a7b8..b542a0ecf06e 100644 --- a/Documentation/devicetree/bindings/serial/serial.txt +++ b/Documentation/devicetree/bindings/serial/serial.txt @@ -23,7 +23,8 @@ Optional properties: they are available for use (wired and enabled by pinmux configuration). This depends on both the UART hardware and the board wiring. Note that this property is mutually-exclusive with "cts-gpios" and - "rts-gpios" above. + "rts-gpios" above, unless support is provided to switch between modes + dynamically. Examples: diff --git a/Documentation/devicetree/bindings/serial/slave-device.txt b/Documentation/devicetree/bindings/serial/slave-device.txt new file mode 100644 index 000000000000..f66037928f5f --- /dev/null +++ b/Documentation/devicetree/bindings/serial/slave-device.txt @@ -0,0 +1,36 @@ +Serial Slave Device DT binding + +This documents the binding structure and common properties for serial +attached devices. Common examples include Bluetooth, WiFi, NFC and GPS +devices. + +Serial attached devices shall be a child node of the host UART device the +slave device is attached to. It is expected that the attached device is +the only child node of the UART device. The slave device node name shall +reflect the generic type of device for the node. + +Required Properties: + +- compatible : A string reflecting the vendor and specific device the node + represents. + +Optional Properties: + +- max-speed : The maximum baud rate the device operates at. This should + only be present if the maximum is less than the slave device + can support. For example, a particular board has some signal + quality issue or the host processor can't support higher + baud rates. + +Example: + +serial@1234 { + compatible = "ns16550a"; + interrupts = <1>; + + bluetooth { + compatible = "brcm,bcm43341-bt"; + interrupt-parent = <&gpio>; + interrupts = <10>; + }; +}; diff --git a/MAINTAINERS b/MAINTAINERS index 7021feed5aa6..545633d6663d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10927,6 +10927,14 @@ S: Maintained F: Documentation/devicetree/bindings/serial/ F: drivers/tty/serial/ +SERIAL DEVICE BUS +M: Rob Herring <robh@kernel.org> +L: linux-serial@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/serial/slave-device.txt +F: drivers/tty/serdev/ +F: include/linux/serdev.h + SERIAL IR RECEIVER M: Sean Young <sean@mess.org> L: linux-media@vger.kernel.org diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi index 4c72dae2aefa..0fe03cb88628 100644 --- a/arch/arm/boot/dts/stih407-family.dtsi +++ b/arch/arm/boot/dts/stih407-family.dtsi @@ -222,9 +222,8 @@ compatible = "st,asc"; reg = <0x9830000 0x2c>; interrupts = <GIC_SPI 122 IRQ_TYPE_NONE>; - pinctrl-names = "default"; - pinctrl-0 = <&pinctrl_serial0>; clocks = <&clk_s_c0_flexgen CLK_EXT2F_A9>; + /* Pinctrl moved out to a per-board configuration */ status = "disabled"; }; diff --git a/arch/arm/boot/dts/stih407-pinctrl.dtsi b/arch/arm/boot/dts/stih407-pinctrl.dtsi index daab16b5ae64..bd1a82e8fffe 100644 --- a/arch/arm/boot/dts/stih407-pinctrl.dtsi +++ b/arch/arm/boot/dts/stih407-pinctrl.dtsi @@ -465,8 +465,16 @@ serial0 { pinctrl_serial0: serial0-0 { st,pins { - tx = <&pio17 0 ALT1 OUT>; - rx = <&pio17 1 ALT1 IN>; + tx = <&pio17 0 ALT1 OUT>; + rx = <&pio17 1 ALT1 IN>; + }; + }; + pinctrl_serial0_hw_flowctrl: serial0-0_hw_flowctrl { |