linux-kernel - [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias

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Date:   Mon, 26 Jun 2017 12:49:09 +0000
From:   Bich HEMON <bich.hemon@...com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre TORGUE <alexandre.torgue@...com>,
        "Jiri Slaby" <jslaby@...e.com>,
        "linux-serial@...r.kernel.org" <linux-serial@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Bich HEMON <bich.hemon@...com>
Subject: [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias

From: Bich Hemon <bich.hemon@...com>

Each usart controller should have an alias correctly
numbered in "aliases" node.

Signed-off-by: Gerald Baeza <gerald.baeza@...com>
---
 Documentation/devicetree/bindings/serial/st,stm32-usart.txt | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
index 85ec5f2..a229b14 100644
--- a/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
+++ b/Documentation/devicetree/bindings/serial/st,stm32-usart.txt
@@ -15,14 +15,23 @@ Optional properties:
 - dmas: phandle(s) to DMA controller node(s). Refer to stm32-dma.txt
 - dma-names: "rx" and/or "tx"
 
+Note: Each usart controller should have an alias correctly numbered
+in "aliases" node.
+
 Examples:
-usart4: serial@...04c00 {
+aliases {
+	serial0 = &usart1;
+	serial1 = &usart2;
+	serial3 = &uart4;
+};
+
+uart4: serial@...04c00 {
 	compatible = "st,stm32-uart";
 	reg = <0x40004c00 0x400>;
 	interrupts = <52>;
 	clocks = <&clk_pclk1>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usart4>;
+	pinctrl-0 = <&pinctrl_uart4>;
 };
 
 usart2: serial@...04400 {
-- 
1.9.1