Add support for requesting an inverted PWM pulse (active-low) when setting up the period and pulse width of a PWM pin. This is useful when driving external, active-low circuitry (e.g. an LED) with a PWM signal. All in-tree PWM drivers is updated to match the new API signature, but no driver support for inverted PWM signals is added yet. All in-tree PWM consumers are updated to pass a flags value of 0 (0 meaning default, which is normal PWM polarity). Fixes #21384. Signed-off-by: Henrik Brix Andersen <hebad@vestas.com> |
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clock | ||
dma | ||
gpio | ||
i2c | ||
interrupt-controller | ||
pcie | ||
pinctrl | ||
pwm | ||
rdc | ||
usb |