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Message-ID: <1410553499-55951-3-git-send-email-s-anna@ti.com>
Date: Fri, 12 Sep 2014 15:24:56 -0500
From: Suman Anna <s-anna@...com>
To: Ohad Ben-Cohen <ohad@...ery.com>,
Mark Rutland <mark.rutland@....com>,
Kumar Gala <galak@...eaurora.org>
CC: Tony Lindgren <tony@...mide.com>,
Josh Cartwright <joshc@...eaurora.org>,
Bjorn Andersson <bjorn@...o.se>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, Suman Anna <s-anna@...com>,
Rob Herring <robh+dt@...nel.org>
Subject: [PATCHv6 2/5] Documentation: dt: add the omap hwspinlock bindings document
HwSpinlock IP is present only on OMAP4 and other newer SoCs,
which are all device-tree boot only. This patch adds the
DT bindings information for OMAP hwspinlock module.
Cc: Rob Herring <robh+dt@...nel.org>
Signed-off-by: Suman Anna <s-anna@...com>
---
.../devicetree/bindings/hwlock/omap-hwspinlock.txt | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
diff --git a/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
new file mode 100644
index 0000000..568eae2
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
@@ -0,0 +1,24 @@
+OMAP4+ HwSpinlock Driver
+========================
+
+Required properties:
+- compatible: Should be "ti,omap4-hwspinlock" for
+ OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
+- reg: Contains the hwspinlock module register address space
+ (base address and length)
+- ti,hwmods: Name of the hwmod associated with the hwspinlock device
+- #hwlock-cells: Should be 1. The OMAP hwspinlock users will use a
+ 0-indexed relative hwlock number as the argument
+ specifier value for requesting a specific hwspinlock
+ within a hwspinlock bank.
+
+
+Example:
+
+/* OMAP4 */
+hwspinlock: spinlock@...f6000 {
+ compatible = "ti,omap4-hwspinlock";
+ reg = <0x4a0f6000 0x1000>;
+ ti,hwmods = "spinlock";
+ #hwlock-cells = <1>;
+};
--
2.0.4
--
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