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c932ed0adb
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 ...
140 lines
3.3 KiB
YAML
140 lines
3.3 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/serial/samsung_uart.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung S3C, S5P, Exynos, and S5L (Apple SoC) SoC UART Controller
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maintainers:
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- Krzysztof Kozlowski <krzk@kernel.org>
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- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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description: |+
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Each Samsung UART should have an alias correctly numbered in the "aliases"
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node, according to serialN format, where N is the port number (non-negative
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decimal integer) as specified by User's Manual of respective SoC.
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properties:
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compatible:
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items:
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- enum:
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- apple,s5l-uart
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- samsung,s3c2410-uart
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- samsung,s3c2412-uart
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- samsung,s3c2440-uart
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- samsung,s3c6400-uart
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- samsung,s5pv210-uart
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- samsung,exynos4210-uart
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reg:
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maxItems: 1
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reg-io-width:
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description: |
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The size (in bytes) of the IO accesses that should be performed
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on the device.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [ 1, 4 ]
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clocks:
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minItems: 2
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maxItems: 5
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clock-names:
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description: N = 0 is allowed for SoCs without internal baud clock mux.
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minItems: 2
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items:
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- const: uart
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- pattern: '^clk_uart_baud[0-3]$'
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- pattern: '^clk_uart_baud[0-3]$'
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- pattern: '^clk_uart_baud[0-3]$'
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- pattern: '^clk_uart_baud[0-3]$'
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dmas:
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items:
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- description: DMA controller phandle and request line for RX
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- description: DMA controller phandle and request line for TX
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dma-names:
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items:
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- const: rx
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- const: tx
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interrupts:
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description: RX interrupt and optionally TX interrupt.
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minItems: 1
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maxItems: 2
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samsung,uart-fifosize:
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description: The fifo size supported by the UART channel.
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [16, 64, 256]
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required:
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- compatible
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- clocks
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- clock-names
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- interrupts
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- reg
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unevaluatedProperties: false
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allOf:
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- $ref: serial.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,s3c2410-uart
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- samsung,s5pv210-uart
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then:
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properties:
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clocks:
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minItems: 2
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maxItems: 3
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clock-names:
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minItems: 2
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maxItems: 3
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items:
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- const: uart
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- pattern: '^clk_uart_baud[0-1]$'
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- pattern: '^clk_uart_baud[0-1]$'
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- if:
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properties:
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compatible:
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contains:
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enum:
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- apple,s5l-uart
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- samsung,exynos4210-uart
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then:
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properties:
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clocks:
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minItems: 2
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maxItems: 2
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clock-names:
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minItems: 2
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maxItems: 2
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items:
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- const: uart
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- const: clk_uart_baud0
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examples:
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- |
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#include <dt-bindings/clock/samsung,s3c64xx-clock.h>
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uart0: serial@7f005000 {
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compatible = "samsung,s3c6400-uart";
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reg = <0x7f005000 0x100>;
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interrupt-parent = <&vic1>;
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interrupts = <5>;
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clock-names = "uart", "clk_uart_baud2",
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"clk_uart_baud3";
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clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
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<&clocks SCLK_UART>;
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samsung,uart-fifosize = <16>;
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};
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