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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/clock/ti/autoidle.txt
parentInitial commit. (diff)
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Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+Binding for Texas Instruments autoidle clock.
+
+Binding status: Unstable - ABI compatibility may be broken in the future
+
+This binding uses the common clock binding[1]. It assumes a register mapped
+clock which can be put to idle automatically by hardware based on the usage
+and a configuration bit setting. Autoidle clock is never an individual
+clock, it is always a derivative of some basic clock like a gate, divider,
+or fixed-factor.
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- reg : offset for the register controlling the autoidle
+- ti,autoidle-shift : bit shift of the autoidle enable bit
+- ti,invert-autoidle-bit : autoidle is enabled by setting the bit to 0
+
+Examples:
+ dpll_core_m4_ck: dpll_core_m4_ck {
+ #clock-cells = <0>;
+ compatible = "ti,divider-clock";
+ clocks = <&dpll_core_x2_ck>;
+ ti,max-div = <31>;
+ ti,autoidle-shift = <8>;
+ reg = <0x2d38>;
+ ti,index-starts-at-one;
+ ti,invert-autoidle-bit;
+ };
+
+ dpll_usb_clkdcoldo_ck: dpll_usb_clkdcoldo_ck {
+ #clock-cells = <0>;
+ compatible = "ti,fixed-factor-clock";
+ clocks = <&dpll_usb_ck>;
+ ti,clock-div = <1>;
+ ti,autoidle-shift = <8>;
+ reg = <0x01b4>;
+ ti,clock-mult = <1>;
+ ti,invert-autoidle-bit;
+ };