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From:   Hammer Hsieh <hammerh0314@gmail.com>
To:     gregkh@linuxfoundation.org, robh+dt@kernel.org,
        linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, jirislaby@kernel.org,
        p.zabel@pengutronix.de
Cc:     wells.lu@sunplus.com, hammer.hsieh@sunplus.com,
        Hammer Hsieh <hammerh0314@gmail.com>
Subject: [PATCH v9 1/2] dt-bindings:serial:Add bindings doc for Sunplus SoC UART Driver
Date:   Tue, 22 Feb 2022 17:36:02 +0800
Message-Id: <1645522563-17183-2-git-send-email-hammerh0314@gmail.com>
In-Reply-To: <1645522563-17183-1-git-send-email-hammerh0314@gmail.com>
References: <1645522563-17183-1-git-send-email-hammerh0314@gmail.com>
Precedence: bulk

Add bindings doc for Sunplus SoC UART Driver

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hammer Hsieh <hammerh0314@gmail.com>
---
Changes in v9:
 - Addressed all comments from Krzysztof Kozlowski.
   Modify incorrect indentation.

 .../bindings/serial/sunplus,sp7021-uart.yaml       | 56 ++++++++++++++++++++++
 MAINTAINERS                                        |  5 ++
 2 files changed, 61 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml

diff --git a/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
new file mode 100644
index 0000000..2e9b64a
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) Sunplus Co., Ltd. 2021
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/sunplus,sp7021-uart.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Sunplus SoC SP7021 UART Controller Device Tree Bindings
+
+maintainers:
+  - Hammer Hsieh <hammerh0314@gmail.com>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: sunplus,sp7021-uart
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    aliases {
+        serial0 = &uart0;
+    };
+
+    uart0: serial@9c000900 {
+        compatible = "sunplus,sp7021-uart";
+        reg = <0x9c000900 0x80>;
+        interrupt-parent = <&intc>;
+        interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&clkc 0x28>;
+        resets = <&rstc 0x18>;
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 3b79fd4..3c1362e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17945,6 +17945,11 @@ L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/dlink/sundance.c
 
+SUNPLUS UART DRIVER
+M:	Hammer Hsieh <hammerh0314@gmail.com>
+S:	Maintained
+F:	Documentation/devicetree/bindings/serial/sunplus,sp7021-uart.yaml
+
 SUPERH
 M:	Yoshinori Sato <ysato@users.sourceforge.jp>
 M:	Rich Felker <dalias@libc.org>
-- 
2.7.4