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-rw-r--r--drivers/pwm/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
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+config DM_PWM
+ bool "Enable support for pulse-width modulation devices (PWM)"
+ depends on DM
+ help
+ A pulse-width modulator emits a pulse of varying width and provides
+ control over the duty cycle (high and low time) of the signal. This
+ is often used to control a voltage level. The more time the PWM
+ spends in the 'high' state, the higher the voltage. The PWM's
+ frequency/period can be controlled along with the proportion of that
+ time that the signal is high.