From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- .../devicetree/bindings/serial/mtk-uart.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/mtk-uart.txt (limited to 'Documentation/devicetree/bindings/serial/mtk-uart.txt') diff --git a/Documentation/devicetree/bindings/serial/mtk-uart.txt b/Documentation/devicetree/bindings/serial/mtk-uart.txt new file mode 100644 index 000000000..742cb4705 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/mtk-uart.txt @@ -0,0 +1,42 @@ +* Mediatek Universal Asynchronous Receiver/Transmitter (UART) + +Required properties: +- compatible should contain: + * "mediatek,mt2701-uart" for MT2701 compatible UARTS + * "mediatek,mt2712-uart" for MT2712 compatible UARTS + * "mediatek,mt6580-uart" for MT6580 compatible UARTS + * "mediatek,mt6582-uart" for MT6582 compatible UARTS + * "mediatek,mt6589-uart" for MT6589 compatible UARTS + * "mediatek,mt6755-uart" for MT6755 compatible UARTS + * "mediatek,mt6765-uart" for MT6765 compatible UARTS + * "mediatek,mt6795-uart" for MT6795 compatible UARTS + * "mediatek,mt6797-uart" for MT6797 compatible UARTS + * "mediatek,mt7622-uart" for MT7622 compatible UARTS + * "mediatek,mt7623-uart" for MT7623 compatible UARTS + * "mediatek,mt8127-uart" for MT8127 compatible UARTS + * "mediatek,mt8135-uart" for MT8135 compatible UARTS + * "mediatek,mt8173-uart" for MT8173 compatible UARTS + * "mediatek,mt6577-uart" for MT6577 and all of the above + +- reg: The base address of the UART register bank. + +- interrupts: A single interrupt specifier. + +- clocks : Must contain an entry for each entry in clock-names. + See ../clocks/clock-bindings.txt for details. +- clock-names: + - "baud": The clock the baudrate is derived from + - "bus": The bus clock for register accesses (optional) + +For compatibility with older device trees an unnamed clock is used for the +baud clock if the baudclk does not exist. Do not use this for new designs. + +Example: + + uart0: serial@11006000 { + compatible = "mediatek,mt6589-uart", "mediatek,mt6577-uart"; + reg = <0x11006000 0x400>; + interrupts = ; + clocks = <&uart_clk>, <&bus_clk>; + clock-names = "baud", "bus"; + }; -- cgit v1.2.3