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Commit 1d17e092 authored by Amir Vajid's avatar Amir Vajid
Browse files

dt-bindings: devfreq: add support for L3 voting in devfreq_icc 

Update the devfreq_icc documentation to add support for L3
voting which includes making some properties optional since
L3 devices import their OPP tables from hardware registers.

Change-Id: Iffd635f3562a029848c1d7d9c4a44413b632f12b
parent dc6ba625

bindings/devfreq/devfreq_icc.txt

+9 −2
Original line number Diff line number Diff line
@@ -6,7 +6,8 @@ device is typically used to vote for BW requirements from a device's (Eg: 
CPU, GPU) master port(s) to the slave (Eg: DDR) port(s).



Required properties:

- compatible:		Must be "qcom,devfreq-icc" or "qcom,devfreq-icc-ddr" or "qcom,devfreq-icc-llcc"

- compatible:		Must be "qcom,devfreq-icc" or "qcom,devfreq-icc-ddr"

			or "qcom,devfreq-icc-llcc" or "qcom,devfreq-icc-l3"

- interconnects:	Pairs of phandles and interconnect provider specificers

			to denote the edge source and destination ports of the

			desired interconnect path.
@@ -14,7 +15,13 @@ Required properties: 
			instantaneous bandwidth values (in MB/s) that can be

			requested from the device master port to the slave port.

			The list of values depend on the supported bus/slave

			frequencies and the bus width.

			frequencies and the bus width. Required for all devices

			except those compatible with "qcom,devfreq-icc-l3".

- reg:			Physical base address and region size of the memory

			mapped registers containing the device's frequency

			table. Required for "qcom,devfreq-icc-l3" devices.

- reg-names:		Name used for the above registers. Expected name is

			"ftbl-base". Required for "qcom,devfreq-icc-l3" devices.

Optional properties:

- qcom,active-only:	Indicates that the bandwidth votes need to be

			enforced only when the CPU subsystem is active.