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Melody Olvera 6f18ce8026 dt-bindings: Add devicetree bindings
Add snapshot of device tree bindings from keystone common kernel, branch
"android-mainline-keystone-qcom-release" at c4c12103f9c0 ("Snap for 9228065
from e32903b9a63bb558df8b803b076619c53c16baad to
android-mainline-keystone-qcom-release").

Change-Id: I7682079615cbd9f29340a5c1f2a1d84ec441a1f1
Signed-off-by: Melody Olvera <quic_molvera@quicinc.com>
2023-04-03 15:40:37 -07:00

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C-SKY Performance Monitor Units
===============================
C-SKY Performance Monitor is designed for ck807/ck810/ck860 SMP soc and
it could count cpu's events for helping analysis performance issues.
============================
PMU node bindings definition
============================
Description: Describes PMU
PROPERTIES
- compatible
Usage: required
Value type: <string>
Definition: must be "csky,csky-pmu"
- interrupts
Usage: required
Value type: <u32 IRQ_TYPE_XXX>
Definition: must be pmu irq num defined by soc
- count-width
Usage: optional
Value type: <u32>
Definition: the width of pmu counter
Examples:
---------
#include <dt-bindings/interrupt-controller/irq.h>
pmu: performace-monitor {
compatible = "csky,csky-pmu";
interrupts = <23 IRQ_TYPE_EDGE_RISING>;
interrupt-parent = <&intc>;
count-width = <48>;
};