Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 36 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt b/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt
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index 000000000..2ebb10733
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+++ b/Documentation/devicetree/bindings/clock/brcm,bcm53573-ilp.txt
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+Broadcom BCM53573 ILP clock
+===========================
+
+This binding uses the common clock binding:
+    Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+This binding is used for ILP clock (sometimes referred as "slow clock")
+on Broadcom BCM53573 devices using Cortex-A7 CPU.
+
+ILP's rate has to be calculated on runtime and it depends on ALP clock
+which has to be referenced.
+
+This clock is part of PMU (Power Management Unit), a Broadcom's device
+handing power-related aspects. Its node must be sub-node of the PMU
+device.
+
+Required properties:
+- compatible: "brcm,bcm53573-ilp"
+- clocks: has to reference an ALP clock
+- #clock-cells: should be <0>
+- clock-output-names: from common clock bindings, should contain clock
+		      name
+
+Example:
+
+pmu@18012000 {
+	compatible = "simple-mfd", "syscon";
+	reg = <0x18012000 0x00001000>;
+
+	ilp {
+		compatible = "brcm,bcm53573-ilp";
+		clocks = <&alp>;
+		#clock-cells = <0>;
+		clock-output-names = "ilp";
+	};
+};