pwm: rockchip: Add a PWM driver for Rockchip SoCs
Add a simple driver which implements the standard PWM uclass interface.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index bd47159..cd8f357 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -8,3 +8,12 @@
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.