linux-kernel - [PATCH v4 5/6] dt-bindings: serial: Document Freescale LINFlexD UART

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Date:   Thu, 5 Sep 2019 11:58:39 +0000
From:   Stefan-gabriel Mirea <stefan-gabriel.mirea@....com>
To:     "corbet@....net" <corbet@....net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "catalin.marinas@....com" <catalin.marinas@....com>,
        "will@...nel.org" <will@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>
CC:     "jslaby@...e.com" <jslaby@...e.com>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Cosmin Stefan Stoica <cosmin.stoica@....com>,
        Larisa Ileana Grigore <larisa.grigore@....com>
Subject: [PATCH v4 5/6] dt-bindings: serial: Document Freescale LINFlexD UART

From: Stoica Cosmin-Stefan <cosmin.stoica@....com>

Add documentation for the serial communication interface module (LINFlexD),
found in two instances on S32V234.

Signed-off-by: Stoica Cosmin-Stefan <cosmin.stoica@....com>
Signed-off-by: Larisa Grigore <Larisa.Grigore@....com>
Signed-off-by: Stefan-Gabriel Mirea <stefan-gabriel.mirea@....com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/serial/fsl,s32-linflexuart.txt   | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt

diff --git a/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
new file mode 100644
index 000000000000..f1bbe0826be5
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/fsl,s32-linflexuart.txt
@@ -0,0 +1,22 @@
+* Freescale LINFlexD UART
+
+The LINFlexD controller implements several LIN protocol versions, as well as
+support for full-duplex UART communication through 8-bit and 9-bit frames.
+
+See chapter 47 ("LINFlexD") in the reference manual[1].
+
+Required properties:
+- compatible :
+  - "fsl,s32v234-linflexuart" for LINFlexD configured in UART mode, which
+    is compatible with the one integrated on S32V234 SoC
+- reg : Address and length of the register set for the device
+- interrupts : Should contain uart interrupt
+
+Example:
+uart0: serial@...53000 {
+	compatible = "fsl,s32v234-linflexuart";
+	reg = <0x0 0x40053000 0x0 0x1000>;
+	interrupts = <0 59 4>;
+};
+
+[1] https://www.nxp.com/webapp/Download?colCode=S32V234RM
-- 
2.22.0