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

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  [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias Bich HEMON <bich.hemon@st.com> - 2017-06-26 15:00 +0200
    Re: [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an  alias Rob Herring <robh@kernel.org> - 2017-06-28 20:10 +0200

#1674743 — [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias

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

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

Signed-off-by: Gerald Baeza <gerald.baeza@st.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@40004c00 {
+aliases {
+	serial0 = &usart1;
+	serial1 = &usart2;
+	serial3 = &uart4;
+};
+
+uart4: serial@40004c00 {
 	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@40004400 {
-- 
1.9.1

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#1677009 — Re: [PATCH 02/20] dt-bindings: serial: each stm32 usart needs an alias

On Mon, Jun 26, 2017 at 12:49:09PM +0000, Bich HEMON wrote:
> From: Bich Hemon <bich.hemon@st.com>
> 
> Each usart controller should have an alias correctly
> numbered in "aliases" node.

This is board specific typically and doesn't need to be in the binding 
doc.

Rob

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