kernel/Documentation/devicetree/bindings/clock/ti/fixed-factor-clock.txt

   1 Binding for TI fixed factor rate clock sources.
   2
   3 Binding status: Unstable - ABI compatibility may be broken in the future
   4
   5 This binding uses the common clock binding[1], and also uses the autoidle
   6 support from TI autoidle clock [2].
   7
   8 [1] Documentation/devicetree/bindings/clock/clock-bindings.txt
   9 [2] Documentation/devicetree/bindings/clock/ti/autoidle.txt
  10
  11 Required properties:
  12 - compatible : shall be "ti,fixed-factor-clock".
  13 - #clock-cells : from common clock binding; shall be set to 0.
  14 - ti,clock-div: fixed divider.
  15 - ti,clock-mult: fixed multiplier.
  16 - clocks: parent clock.
  17
  18 Optional properties:
  19 - ti,autoidle-shift: bit shift of the autoidle enable bit for the clock,
  20   see [2]
  21 - reg: offset for the autoidle register of this clock, see [2]
  22 - ti,invert-autoidle-bit: autoidle is enabled by setting the bit to 0, see [2]
  23 - ti,set-rate-parent: clk_set_rate is propagated to parent
  24
  25 Example:
  26         clock {
  27                 compatible = "ti,fixed-factor-clock";
  28                 clocks = <&parentclk>;
  29                 #clock-cells = <0>;
  30                 ti,clock-div = <2>;
  31                 ti,clock-mult = <1>;
  32         };
  33
  34         dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
  35                 #clock-cells = <0>;
  36                 compatible = "ti,fixed-factor-clock";
  37                 clocks = <&dpll_usb_ck>;
  38                 ti,clock-div = <1>;
  39                 ti,autoidle-shift = <8>;
  40                 reg = <0x01b4>;
  41                 ti,clock-mult = <1>;
  42                 ti,invert-autoidle-bit;
  43         };