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The rk3288 has the ability to invert the polarity of the PWM. Let's enable that ability. Note that this increases pwm_cells to 3 for rk3288. Signed-off-by: Doug Anderson <dianders@chromium.org> Reviewed-by: Caesar Wang <caesar.wang@rock-chips.com> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
21 lines
674 B
Plaintext
21 lines
674 B
Plaintext
Rockchip PWM controller
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Required properties:
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- compatible: should be "rockchip,<name>-pwm"
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"rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs
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"rockchip,rk3288-pwm": found on RK3288 SoC
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"rockchip,vop-pwm": found integrated in VOP on RK3288 SoC
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- reg: physical base address and length of the controller's registers
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- clocks: phandle and clock specifier of the PWM reference clock
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- #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory
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for a description of the cell format.
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Example:
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pwm0: pwm@20030000 {
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compatible = "rockchip,rk2928-pwm";
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reg = <0x20030000 0x10>;
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clocks = <&cru PCLK_PWM01>;
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#pwm-cells = <2>;
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};
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