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regulator: pwm-regulator: add devicetree bindings for pwm regulator

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Document the pwm regulator

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chris Zhong 2014-09-28 10:28:54 +08:00 committed by Mark Brown
parent aa66cc6630
commit fbf7974427
1 changed files with 27 additions and 0 deletions
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Documentation/devicetree/bindings/regulator/pwm-regulator.txt Normal file
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pwm regulator bindings
Required properties:
- compatible: Should be "pwm-regulator"
- pwms: OF device-tree PWM specification (see PWM binding pwm.txt)
- voltage-table: voltage and duty table, include 2 members in each set of
brackets, first one is voltage(unit: uv), the next is duty(unit: percent)
Any property defined as part of the core regulator binding defined in
regulator.txt can also be used.
Example:
pwm_regulator {
compatible = "pwm-regulator;
pwms = <&pwm1 0 8448 0>;
voltage-table = <1114000 0>,
<1095000 10>,
<1076000 20>,
<1056000 30>,
<1036000 40>,
<1016000 50>;
regulator-min-microvolt = <1016000>;
regulator-max-microvolt = <1114000>;
regulator-name = "vdd_logic";
};