[PATCH V2 1/2] dt-bindings: timer: add nxp tpm timer binding doc
From: Dong Aisheng <aisheng.dong@nxp.com>
Date: 2017-06-13 07:58:46
Also in:
linux-arm-kernel, lkml
Subsystem:
clocksource, clockevent drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Daniel Lezcano, Thomas Gleixner, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Adding NXP Low Power Timer/Pulse Width Modulation Module (TPM) binding doc. Cc: Mark Rutland <mark.rutland@arm.com> Cc: devicetree@vger.kernel.org Cc: Daniel Lezcano <redacted> Cc: Thomas Gleixner <redacted> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Bai Ping <ping.bai@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com> --- ChangeLog: v1->v2: * No changes --- .../devicetree/bindings/timer/nxp,tpm-timer.txt | 28 ++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt
diff --git a/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt
new file mode 100644
index 0000000..b4aa7dd
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/nxp,tpm-timer.txt@@ -0,0 +1,28 @@ +NXP Low Power Timer/Pulse Width Modulation Module (TPM) + +The Timer/PWM Module (TPM) supports input capture, output compare, +and the generation of PWM signals to control electric motor and power +management applications. The counter, compare and capture registers +are clocked by an asynchronous clock that can remain enabled in low +power modes. TPM can support global counter bus where one TPM drives +the counter bus for the others, provided bit width is the same. + +Required properties: + +- compatible : should be "fsl,imx7ulp-tpm" +- reg : Specifies base physical address and size of the register sets + for the clock event device and clock source device. +- interrupts : Should be the clock event device interrupt. +- clocks : The clocks provided by the SoC to drive the timer, must contain + an entry for each entry in clock-names. +- clock-names : Must include the following entries: "igp" and "per". + +Example: +tpm5: tpm@40260000 { + compatible = "fsl,imx7ulp-tpm"; + reg = <0x40260000 0x1000>; + interrupts = <GIC_SPI 22 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX7ULP_CLK_NIC1_BUS_DIV>, + <&clks IMX7ULP_CLK_LPTPM5>; + clock-names = "ipg", "per"; +};
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2.7.4