fad358a06c
Extend the pwm-beeper driver to support customized frequency for SND_BELL from device properties. Signed-off-by: Guan Ben <ben.guan@cn.bosch.com> Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
25 lines
502 B
Plaintext
25 lines
502 B
Plaintext
* PWM beeper device tree bindings
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Registers a PWM device as beeper.
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Required properties:
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- compatible: should be "pwm-beeper"
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- pwms: phandle to the physical PWM device
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Optional properties:
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- amp-supply: phandle to a regulator that acts as an amplifier for the beeper
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- beeper-hz: bell frequency in Hz
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Example:
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beeper_amp: amplifier {
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compatible = "fixed-regulator";
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gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
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};
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beeper {
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compatible = "pwm-beeper";
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pwms = <&pwm0>;
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amp-supply = <&beeper_amp>;
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};
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