diff options
Diffstat (limited to 'drivers/pwm/Kconfig')
| -rw-r--r-- | drivers/pwm/Kconfig | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig new file mode 100644 index 0000000..cd8f357 --- /dev/null +++ b/drivers/pwm/Kconfig @@ -0,0 +1,19 @@ +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. + +config PWM_ROCKCHIP + bool "Enable support for the Rockchip PWM" + depends on DM_PWM + help + This PWM is found on RK3288 and other Rockchip SoCs. It supports a + programmable period and duty cycle. A 32-bit counter is used. + Various options provided in the hardware (such as capture mode and + continuous/single-shot) are not supported by the driver. |