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Commit 40e5ddf4 authored by Stephen Boyd's avatar Stephen Boyd Committed by Stephen Boyd
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dt-bindings: arm: Document qcom,kpss-gcc 



The ACC and GCC regions present in KPSSv1 contain registers to
control clocks and power to each Krait CPU and L2. Documenting
the bindings here.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarStephen Boyd <sboyd@codeaurora.org>
Signed-off-by: default avatarSricharan R <sricharan@codeaurora.org>
Tested-by: default avatarCraig Tatlor <ctatlor97@gmail.com>
Signed-off-by: default avatarStephen Boyd <sboyd@kernel.org>
parent 3ddc3564

Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt

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Original line number Diff line number Diff line
@@ -21,10 +21,29 @@ PROPERTIES 
		    the register region. An optional second element specifies

		    the base address and size of the alias register region.



- clocks:

        Usage: required

        Value type: <prop-encoded-array>

        Definition: reference to the pll parents.



- clock-names:

        Usage: required

        Value type: <stringlist>

        Definition: must be "pll8_vote", "pxo".



- clock-output-names:

	Usage: optional

	Value type: <string>

	Definition: Name of the output clock. Typically acpuX_aux where X is a

		    CPU number starting at 0.



Example:



	clock-controller@2088000 {

		compatible = "qcom,kpss-acc-v2";

		reg = <0x02088000 0x1000>,

		      <0x02008000 0x1000>;

		clocks = <&gcc PLL8_VOTE>, <&gcc PXO_SRC>;

		clock-names = "pll8_vote", "pxo";

		clock-output-names = "acpu0_aux";

	};

Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt

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Krait Processor Sub-system (KPSS) Global Clock Controller (GCC)



PROPERTIES



- compatible:

	Usage: required

	Value type: <string>

	Definition: should be one of the following. The generic compatible

			"qcom,kpss-gcc" should also be included.

			"qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc"

			"qcom,kpss-gcc-apq8064", "qcom,kpss-gcc"

			"qcom,kpss-gcc-msm8974", "qcom,kpss-gcc"

			"qcom,kpss-gcc-msm8960", "qcom,kpss-gcc"



- reg:

	Usage: required

	Value type: <prop-encoded-array>

	Definition: base address and size of the register region



- clocks:

	Usage: required

	Value type: <prop-encoded-array>

	Definition: reference to the pll parents.



- clock-names:

	Usage: required

	Value type: <stringlist>

	Definition: must be "pll8_vote", "pxo".



- clock-output-names:

	Usage: required

	Value type: <string>

	Definition: Name of the output clock. Typically acpu_l2_aux indicating

		    an L2 cache auxiliary clock.



Example:



	l2cc: clock-controller@2011000 {

		compatible = "qcom,kpss-gcc-ipq8064", "qcom,kpss-gcc";

		reg = <0x2011000 0x1000>;

		clocks = <&gcc PLL8_VOTE>, <&gcc PXO_SRC>;

		clock-names = "pll8_vote", "pxo";

		clock-output-names = "acpu_l2_aux";

	};