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Add a uclass that supports Pulse Width Modulation (PWM) devices. It provides methods to enable/disable and configure the device. Signed-off-by: Simon Glass <sjg@chromium.org>
11 lines
478 B
Plaintext
11 lines
478 B
Plaintext
config DM_PWM
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bool "Enable support for pulse-width modulation devices (PWM)"
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depends on DM
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help
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A pulse-width modulator emits a pulse of varying width and provides
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control over the duty cycle (high and low time) of the signal. This
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is often used to control a voltage level. The more time the PWM
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spends in the 'high' state, the higher the voltage. The PWM's
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frequency/period can be controlled along with the proportion of that
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time that the signal is high.
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