linux-kernel - [PATCH V4 3/4] dt-bindings: serial: add a new compatible string for SC9860

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Message-ID: <1489729898-774-4-git-send-email-chunyan.zhang@spreadtrum.com>
Date:   Fri, 17 Mar 2017 13:51:37 +0800
From:   Chunyan Zhang <chunyan.zhang@...eadtrum.com>
To:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <gregkh@...uxfoundation.org>, <catalin.marinas@....com>,
        <will.deacon@....com>, <arnd@...db.de>
CC:     <mathieu.poirier@...aro.org>, <orson.zhai@...eadtrum.com>,
        <sudeep.holla@....com>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <zhang.lyra@...il.com>,
        <chunyan.zhang@...eadtrum.com>
Subject: [PATCH V4 3/4] dt-bindings: serial: add a new compatible string for SC9860

SC9860 use the same serial device which SC9836 uses, so added a new
compatible string to support SC9860 as well, also added an example
of how to describe this serial device in DT.

Signed-off-by: Chunyan Zhang <chunyan.zhang@...eadtrum.com>
---
 Documentation/devicetree/bindings/serial/sprd-uart.txt | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/serial/sprd-uart.txt b/Documentation/devicetree/bindings/serial/sprd-uart.txt
index 2aff0f2..1db5d6f 100644
--- a/Documentation/devicetree/bindings/serial/sprd-uart.txt
+++ b/Documentation/devicetree/bindings/serial/sprd-uart.txt
@@ -1,7 +1,19 @@
 * Spreadtrum serial UART
 
 Required properties:
-- compatible: must be "sprd,sc9836-uart"
+- compatible: must be one of:
+  * "sprd,sc9836-uart"
+  * "sprd,sc9860-uart", "sprd,sc9836-uart"
+
 - reg: offset and length of the register set for the device
 - interrupts: exactly one interrupt specifier
 - clocks: phandles to input clocks.
+
+Example:
+	uart0: serial@...000 {
+		compatible = "sprd,sc9860-uart",
+			     "sprd,sc9836-uart";
+		reg = <0x000000 0x100>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&ext_26m>;
+	};
-- 
2.7.4