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-Binding for Texas Instruments gate clock.
-
-This binding uses the common clock binding[1]. This clock is
-quite much similar to the basic gate-clock [2], however,
-it supports a number of additional features. If no register
-is provided for this clock, the code assumes that a clockdomain
-will be controlled instead and the corresponding hw-ops for
-that is used.
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml
-[3] Documentation/devicetree/bindings/clock/ti/clockdomain.txt
-
-Required properties:
-- compatible : shall be one of:
- "ti,gate-clock" - basic gate clock
- "ti,wait-gate-clock" - gate clock which waits until clock is active before
- returning from clk_enable()
- "ti,dss-gate-clock" - gate clock with DSS specific hardware handling
- "ti,am35xx-gate-clock" - gate clock with AM35xx specific hardware handling
- "ti,clkdm-gate-clock" - clockdomain gate clock, which derives its functional
- clock directly from a clockdomain, see [3] how
- to map clockdomains properly
- "ti,hsdiv-gate-clock" - gate clock with OMAP36xx specific hardware handling,
- required for a hardware errata
- "ti,composite-gate-clock" - composite gate clock, to be part of composite
- clock
- "ti,composite-no-wait-gate-clock" - composite gate clock that does not wait
- for clock to be active before returning
- from clk_enable()
-- #clock-cells : from common clock binding; shall be set to 0
-- clocks : link to phandle of parent clock
-- reg : offset for register controlling adjustable gate, not needed for
- ti,clkdm-gate-clock type
-
-Optional properties:
-- clock-output-names : from common clock binding.
-- ti,bit-shift : bit shift for programming the clock gate, invalid for
- ti,clkdm-gate-clock type
-- ti,set-bit-to-disable : inverts default gate programming. Setting the bit
- gates the clock and clearing the bit ungates the clock.
-
-Examples:
- mmchs2_fck: mmchs2_fck@48004a00 {
- #clock-cells = <0>;
- compatible = "ti,gate-clock";
- clocks = <&core_96m_fck>;
- reg = <0x0a00>;
- ti,bit-shift = <25>;
- };
-
- uart4_fck_am35xx: uart4_fck_am35xx {
- #clock-cells = <0>;
- compatible = "ti,wait-gate-clock";
- clocks = <&core_48m_fck>;
- reg = <0x0a00>;
- ti,bit-shift = <23>;
- };
-
- dss1_alwon_fck_3430es2: dss1_alwon_fck_3430es2@48004e00 {
- #clock-cells = <0>;
- compatible = "ti,dss-gate-clock";
- clocks = <&dpll4_m4x2_ck>;
- reg = <0x0e00>;
- ti,bit-shift = <0>;
- };
-
- emac_ick: emac_ick@4800259c {
- #clock-cells = <0>;
- compatible = "ti,am35xx-gate-clock";
- clocks = <&ipss_ick>;
- reg = <0x059c>;
- ti,bit-shift = <1>;
- };
-
- emu_src_ck: emu_src_ck {
- #clock-cells = <0>;
- compatible = "ti,clkdm-gate-clock";
- clocks = <&emu_src_mux_ck>;
- };
-
- dpll4_m2x2_ck: dpll4_m2x2_ck@48004d00 {
- #clock-cells = <0>;
- compatible = "ti,hsdiv-gate-clock";
- clocks = <&dpll4_m2x2_mul_ck>;
- ti,bit-shift = <0x1b>;
- reg = <0x0d00>;
- ti,set-bit-to-disable;
- };
-
- vlynq_gate_fck: vlynq_gate_fck {
- #clock-cells = <0>;
- compatible = "ti,composite-gate-clock";
- clocks = <&core_ck>;
- ti,bit-shift = <3>;
- reg = <0x0200>;
- };
-
- sys_clkout2_src_gate: sys_clkout2_src_gate {
- #clock-cells = <0>;
- compatible = "ti,composite-no-wait-gate-clock";
- clocks = <&core_ck>;
- ti,bit-shift = <15>;
- reg = <0x0070>;
- };