dt-bindings: pwm-stm32-lp: Add #pwm-cells

STM32 Low-Power Timer supports generic 3 cells PWM to encode PWM number,
period and polarity.

Signed-off-by: Gerald Baeza <gerald.baeza@st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Gerald Baeza 2018-02-23 14:36:03 +01:00 • committed by Thierry Reding
commit e7c4b02c26