From: Nikolay Borisov <nborisov@suse.com>
To: bjorn.andersson@linaro.org
Cc: Nikolay Borisov <nborisov@suse.com>,
linux-arm-kernel@lists.infradead.org, mripard@kernel.org
Subject: [PATCH 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings
Date: Mon, 10 Feb 2020 19:01:43 +0200 [thread overview]
Message-ID: <20200210170143.20007-4-nborisov@suse.com> (raw)
In-Reply-To: <20200210170143.20007-1-nborisov@suse.com>
Add binding for the hwspinlock found on Allwinner A64 SoC.
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
---
.../bindings/hwlock/sunxi-hwspinlock.txt | 27 +++++++++++++++++++
1 file changed, 27 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/sunxi-hwspinlock.txt
diff --git a/Documentation/devicetree/bindings/hwlock/sunxi-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/sunxi-hwspinlock.txt
new file mode 100644
index 000000000000..af1fbf8fc9f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/sunxi-hwspinlock.txt
@@ -0,0 +1,27 @@
+Allwinner HwSpinlock for A64 SoC
+=========================================
+
+Required properties:
+- compatible: Should be "allwinner,sun50i-a64-hwspinlock"
+- reg: Contains the hwspinlock module register address space
+ (base address and length)
+- resets: phandle to the reset control for the hwspinlock
+- clocks: phandle to the clock feeding the hwspinlock
+- #hwlock-cells: Should be 1. The A64 hwspinlock users will use a
+ 0-indexed relative hwlock number as the argument
+ specifier value for requesting a specific hwspinlock
+ within a hwspinlock bank.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example:
+
+1. Allwinner A64
+hwspinlock: spinlock@1c18000 {
+ compatible = "allwinner,sun50i-a64-hwspinlock";
+ reg = <0x01c18000 0x1000>;
+ clocks = <&ccu CLK_BUS_SPINLOCK>;
+ resets = <&ccu RST_BUS_SPINLOCK>;
+ #hwlock-cells = <1>;
+};
--
2.17.1
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next prev parent reply other threads:[~2020-02-10 17:02 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-10 17:01 [PATCH 0/3] Add support for hwspinlock on A64 SoC Nikolay Borisov
2020-02-10 17:01 ` [PATCH 1/3] hwspinlock: sunxi: Implement support for Allwinner's " Nikolay Borisov
2020-02-10 18:57 ` Bjorn Andersson
2020-02-10 19:06 ` Nikolay Borisov
2020-02-10 20:05 ` Bjorn Andersson
2020-02-11 7:46 ` Maxime Ripard
2020-02-11 8:08 ` Nikolay Borisov
2020-02-11 12:34 ` Maxime Ripard
2020-02-11 13:17 ` Nikolay Borisov
2020-02-12 12:06 ` Maxime Ripard
2020-02-12 14:32 ` Nikolay Borisov
2020-02-12 19:10 ` Maxime Ripard
2020-02-10 17:01 ` [PATCH 2/3] arm64: dts: allwinner: a64: Add hwspinlock node Nikolay Borisov
2020-02-11 7:55 ` Maxime Ripard
2020-02-11 8:09 ` Nikolay Borisov
2020-02-11 12:36 ` Maxime Ripard
2020-02-10 17:01 ` Nikolay Borisov [this message]
2020-02-10 18:59 ` [PATCH 3/3] dt-bindings: hwlock: Document A64 hwspinlock bindings Bjorn Andersson
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