linux-kernel - [PATCH V6 3/5] Documentation: power: reset: Add documentation for generic SYSCON reboot driver

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Date:	Wed,  7 May 2014 09:18:02 -0700
From:	Feng Kan <fkan@....com>
To:	dbaryshkov@...il.com, catalin.marinas@....com, dwmw2@...radead.org,
	arnd@...db.de, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	patches@....com
Cc:	Feng Kan <fkan@....com>
Subject: [PATCH V6 3/5] Documentation: power: reset: Add documentation for generic SYSCON reboot driver

Add documentation for generic SYSCON reboot driver.

Signed-off-by: Feng Kan <fkan@....com>
---
 .../bindings/power/reset/syscon-reboot.txt         |   27 ++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/reset/syscon-reboot.txt

diff --git a/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt
new file mode 100644
index 0000000..79942a3
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/reset/syscon-reboot.txt
@@ -0,0 +1,27 @@
+Generic SYSCON mapped register reset driver
+
+This is a generic reset driver using syscon to map the reset register.
+The reset is generally performed with a write to the reset register
+defined by the register map pointed by syscon reference plus the offset
+with the mask defined in the reboot node.
+
+Required properties:
+- compatible: should contain "syscon-reboot"
+- regmap: this is phandle to the register map node 
+- offset: offset in the register map for the reboot register (in bytes)
+- mask: the reset value written to the reboot register (32 bit access)
+
+Default will be little endian mode, 32 bit access only.
+
+Examples:
+	regmapnode {
+		compatible = "apm,xgene-scu","syscon";
+		reg = <0xXXXXXXXX 0xXXXXXXXX>;
+	}
+
+	reboot {
+	   compatible = "syscon-reboot";
+	   regmap = <&regmapnode>;
+	   offset = <0x0>;
+	   mask = <0x1>;
+	};
-- 
1.7.6.1

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