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Commit 2caf0384 authored by Anson Huang's avatar Anson Huang Committed by Thierry Reding
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dt-bindings: pwm: Add i.MX TPM PWM binding 



Add i.MX TPM(Low Power Timer/Pulse Width Modulation Module) PWM binding.

Signed-off-by: default avatarAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarThierry Reding <thierry.reding@gmail.com>
parent 1347c94f

Documentation/devicetree/bindings/pwm/imx-tpm-pwm.txt

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Freescale i.MX TPM PWM controller



Required properties:

- compatible : Should be "fsl,imx7ulp-pwm".

- reg: Physical base address and length of the controller's registers.

- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format.

- clocks : The clock provided by the SoC to drive the PWM.

- interrupts: The interrupt for the PWM controller.



Note: The TPM counter and period counter are shared between multiple channels, so all channels

should use same period setting.



Example:



tpm4: pwm@40250000 {

	compatible = "fsl,imx7ulp-pwm";

	reg = <0x40250000 0x1000>;

	assigned-clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;

	assigned-clock-parents = <&scg1 IMX7ULP_CLK_SOSC_BUS_CLK>;

	clocks = <&pcc2 IMX7ULP_CLK_LPTPM4>;

	#pwm-cells = <3>;

};