kernel/Documentation/devicetree/bindings/clock/ti/autoidle.txt

   1 Binding for Texas Instruments autoidle clock.
   2
   3 Binding status: Unstable - ABI compatibility may be broken in the future
   4
   5 This binding uses the common clock binding[1]. It assumes a register mapped
   6 clock which can be put to idle automatically by hardware based on the usage
   7 and a configuration bit setting. Autoidle clock is never an individual
   8 clock, it is always a derivative of some basic clock like a gate, divider,
   9 or fixed-factor.
  10
  11 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
  12
  13 Required properties:
  14 - reg : offset for the register controlling the autoidle
  15 - ti,autoidle-shift : bit shift of the autoidle enable bit
  16 - ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0
  17
  18 Examples:
  19         dpll_core_m4_ck: dpll_core_m4_ck {
  20                 #clock-cells = <0>;
  21                 compatible = "ti,divider-clock";
  22                 clocks = <&dpll_core_x2_ck>;
  23                 ti,max-div = <31>;
  24                 ti,autoidle-shift = <8>;
  25                 reg = <0x2d38>;
  26                 ti,index-starts-at-one;
  27                 ti,invert-autoidle-bit;
  28         };
  29
  30         dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
  31                 #clock-cells = <0>;
  32                 compatible = "ti,fixed-factor-clock";
  33                 clocks = <&dpll_usb_ck>;
  34                 ti,clock-div = <1>;
  35                 ti,autoidle-shift = <8>;
  36                 reg = <0x01b4>;
  37                 ti,clock-mult = <1>;
  38                 ti,invert-autoidle-bit;
  39         };