linux-kernel - [PATCH v2 3/4] dt-bindings: serial: document LiteUART bindings

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Message-ID: <20191023114634.13657-3-mholenko@antmicro.com>
Date:   Wed, 23 Oct 2019 11:47:14 +0200
From:   Mateusz Holenko <mholenko@...micro.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Jiri Slaby <jslaby@...e.com>, devicetree@...r.kernel.org,
        linux-serial@...r.kernel.org
Cc:     Stafford Horne <shorne@...il.com>,
        Karol Gugala <kgugala@...micro.com>,
        Mateusz Holenko <mholenko@...micro.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>,
        Filip Kokosinski <fkokosinski@...ernships.antmicro.com>,
        Joel Stanley <joel@....id.au>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Maxime Ripard <mripard@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Sam Ravnborg <sam@...nborg.org>,
        Icenowy Zheng <icenowy@...c.io>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/4] dt-bindings: serial: document LiteUART bindings

From: Filip Kokosinski <fkokosinski@...ernships.antmicro.com>

Add documentation for LiteUART devicetree bindings.

Signed-off-by: Filip Kokosinski <fkokosinski@...ernships.antmicro.com>
Signed-off-by: Mateusz Holenko <mholenko@...micro.com>
---
Changes in v2:
- binding description rewritten to a yaml schema file
- added interrupt line
- fixed unit address
- patch number changed from 2 to 3

 .../bindings/serial/litex,liteuart.yaml       | 38 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 39 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/litex,liteuart.yaml

diff --git a/Documentation/devicetree/bindings/serial/litex,liteuart.yaml b/Documentation/devicetree/bindings/serial/litex,liteuart.yaml
new file mode 100644
index 000000000000..87bf846b170a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/litex,liteuart.yaml
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/litex,liteuart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: LiteUART serial controller
+
+maintainers:
+  - Karol Gugala <kgugala@...micro.com>
+  - Mateusz Holenko <mholenko@...micro.com>
+
+description: |
+  LiteUART serial controller is a part of LiteX FPGA SoC builder. It supports
+  multiple CPU architectures, currently including e.g. OpenRISC and RISC-V.
+
+properties:
+  compatible:
+    const: litex,liteuart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    uart0: serial@...01800 {
+      compatible = "litex,liteuart";
+      reg = <0xe0001800 0x100>;
+      interrupts = <2>;
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index eaa51209bfb2..1dc783c9edb7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9498,6 +9498,7 @@ M:	Karol Gugala <kgugala@...micro.com>
 M:	Mateusz Holenko <mholenko@...micro.com>
 S:	Maintained
 F:	include/linux/litex.h
+F:	Documentation/devicetree/bindings/*/litex,*.yaml
 
 LIVE PATCHING
 M:	Josh Poimboeuf <jpoimboe@...hat.com>
-- 
2.23.0