linux-kernel - [PATCH V2 2/2] dt-bindings: Document the DesignWare IP reset bindings

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Date:   Thu,  6 Jun 2019 17:36:28 +0200
From:   Luis Oliveira <Luis.Oliveira@...opsys.com>
To:     p.zabel@...gutronix.de, robh+dt@...nel.org, mark.rutland@....com,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:     Joao.Pinto@...opsys.com,
        Luis Oliveira <Luis.Oliveira@...opsys.com>,
        Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>
Subject: [PATCH V2 2/2] dt-bindings: Document the DesignWare IP reset bindings

This adds documentation of device tree bindings for the
DesignWare IP reset controller.

Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Signed-off-by: Luis Oliveira <luis.oliveira@...opsys.com>
---
Changelog
- Add active low configuration example
- Fix compatible string in the active high example

 .../devicetree/bindings/reset/snps,dw-reset.txt    | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/snps,dw-reset.txt

diff --git a/Documentation/devicetree/bindings/reset/snps,dw-reset.txt b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
new file mode 100644
index 0000000..85f3301
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
@@ -0,0 +1,30 @@
+Synopsys DesignWare Reset controller
+=======================================
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+
+- compatible: should be one of the following.
+	"snps,dw-high-reset" - for active high configuration
+	"snps,dw-low-reset" - for active low configuration
+
+- reg: physical base address of the controller and length of memory mapped
+	region.
+
+- #reset-cells: must be 1.
+
+example:
+
+	dw_rst_1: reset-controller@...0 {
+		  compatible = "snps,dw-high-reset";
+	 	  reg = <0x0000 0x4>;
+		  #reset-cells = <1>;
+	};
+
+	dw_rst_2: reset-controller@...0 {i
+		  compatible = "snps,dw-low-reset";
+		  reg = <0x1000 0x8>;
+		  #reset-cells = <1>;
+	};
-- 
2.7.4