linux-kernel - [PATCH 1/2] dt-bindings: reset: Add document for Broadcom STB reset controller

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Message-Id: <20181221013409.14324-2-f.fainelli@gmail.com>
Date:   Thu, 20 Dec 2018 17:34:08 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     p.zabel@...gutronix.de, linux-kernel@...r.kernel.org
Cc:     Florian Fainelli <f.fainelli@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Brian Norris <computersforpeace@...il.com>,
        Gregory Fong <gregory.0xf0@...il.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM BCM7XXX ARM
        ARCHITECTURE),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM BCM7XXX
        ARM ARCHITECTURE)
Subject: [PATCH 1/2] dt-bindings: reset: Add document for Broadcom STB reset controller

Add a binding document for the Broadcom STB reset controller, also known
as SW_INIT-style reset controller.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 .../devicetree/bindings/reset/brcm,reset.txt  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/reset/brcm,reset.txt

diff --git a/Documentation/devicetree/bindings/reset/brcm,reset.txt b/Documentation/devicetree/bindings/reset/brcm,reset.txt
new file mode 100644
index 000000000000..6e5341b4f891
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/brcm,reset.txt
@@ -0,0 +1,27 @@
+Broadcom STB SW_INIT-style reset controller
+===========================================
+
+Broadcom STB SoCs have a SW_INIT-style reset controller with separate
+SET/CLEAR/STATUS registers and possibly multiple banks, each of 32 bit
+reset lines.
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+- compatible: should be brcm,brcmstb-reset
+- reg: register base and length
+- #reset-cells: must be set to 1
+
+Example:
+
+	reset: reset-controller@...4318 {
+		compatible = "brcm,brcmstb-reset";
+		reg = <0x8404318 0x30>;
+		#reset-cells = <1>;
+	};
+
+	&ethernet_switch {
+		resets = <&reset>;
+		reset-names = "switch";
+	};
-- 
2.17.1