Some additional information:pwms = <&pwm1 0 10000 0>;, the first number is the pwm channel in this device, second number is pwm period(1/pwm frequency), the third number is pwm polarity.
Specifying PWM information for devices
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1) PWM user nodes
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PWM users should specify a list of PWM devices that they want to use
with a property containing a 'pwm-list':
pwm-list ::= <single-pwm> [pwm-list]
single-pwm ::= <pwm-phandle> <pwm-specifier>
pwm-phandle : phandle to PWM controller node
pwm-specifier : array of #pwm-cells specifying the given PWM
(controller specific)
PWM properties should be named "pwms". The exact meaning of each pwms
property must be documented in the device tree binding for each device.
An optional property "pwm-names" may contain a list of strings to label
each of the PWM devices listed in the "pwms" property. If no "pwm-names"
property is given, the name of the user node will be used as fallback.
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