linux-kernel - [PATCH v4 3/5] Documentation: DT: add i.MX EPIT timer binding

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Message-Id: <20180530120327.27681-4-peron.clem@gmail.com>
Date:   Wed, 30 May 2018 14:03:25 +0200
From:   Clément Péron <peron.clem@...il.com>
To:     Colin Didier <colin.didier@...ialet.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Fabio Estevam <fabio.estevam@....com>,
        Vladimir Zapolskiy <vladimir_zapolskiy@...tor.com>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Rob Herring <robh@...nel.org>,
        NXP Linux Team <linux-imx@....com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Clément Peron <clement.peron@...ialet.com>
Subject: [PATCH v4 3/5] Documentation: DT: add i.MX EPIT timer binding

From: Clément Peron <clement.peron@...ialet.com>

Add devicetree binding document for NXP's i.MX SoC specific
EPIT timer driver.

Signed-off-by: Clément Peron <clement.peron@...ialet.com>
---
 .../devicetree/bindings/timer/fsl,imxepit.txt | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/fsl,imxepit.txt

diff --git a/Documentation/devicetree/bindings/timer/fsl,imxepit.txt b/Documentation/devicetree/bindings/timer/fsl,imxepit.txt
new file mode 100644
index 000000000000..90112d58af10
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/fsl,imxepit.txt
@@ -0,0 +1,24 @@
+Binding for the i.MX EPIT timer
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible: should be "fsl,imx31-epit"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: Should contain EPIT controller interrupt
+- clocks: list of clock specifiers, must contain an entry for each required
+  entry in clock-names
+- clock-names : should include entries "ipg", "per"
+
+Example for i.MX6QDL:
+	epit1: epit@...0000 {
+		compatible = "fsl,imx6q-epit", "fsl,imx31-epit";
+		reg = <0x020d0000 0x4000>;
+		interrupts = <0 56 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&clks IMX6QDL_CLK_IPG_PER>,
+			<&clks IMX6QDL_CLK_EPIT1>;
+		clock-names = "ipg", "per";
+	};
-- 
2.17.0