e5ee331ebc
Document the global clock controller found on SM8150. Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org> Signed-off-by: Taniya Das <tdas@codeaurora.org> [vkoul: port to upstream and add external clocks split binding to this patch]] Signed-off-by: Vinod Koul <vkoul@kernel.org> Link: https://lkml.kernel.org/r/20190722074348.29582-5-vkoul@kernel.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
95 lines
2.6 KiB
Plaintext
95 lines
2.6 KiB
Plaintext
Qualcomm Global Clock & Reset Controller Binding
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------------------------------------------------
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Required properties :
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- compatible : shall contain only one of the following:
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"qcom,gcc-apq8064"
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"qcom,gcc-apq8084"
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"qcom,gcc-ipq8064"
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"qcom,gcc-ipq4019"
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"qcom,gcc-ipq8074"
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"qcom,gcc-msm8660"
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"qcom,gcc-msm8916"
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"qcom,gcc-msm8960"
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"qcom,gcc-msm8974"
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"qcom,gcc-msm8974pro"
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"qcom,gcc-msm8974pro-ac"
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"qcom,gcc-msm8994"
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"qcom,gcc-msm8996"
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"qcom,gcc-msm8998"
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"qcom,gcc-mdm9615"
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"qcom,gcc-qcs404"
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"qcom,gcc-sdm630"
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"qcom,gcc-sdm660"
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"qcom,gcc-sdm845"
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"qcom,gcc-sm8150"
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- reg : shall contain base register location and length
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- #clock-cells : shall contain 1
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- #reset-cells : shall contain 1
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Optional properties :
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- #power-domain-cells : shall contain 1
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- Qualcomm TSENS (thermal sensor device) on some devices can
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be part of GCC and hence the TSENS properties can also be
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part of the GCC/clock-controller node.
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For more details on the TSENS properties please refer
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Documentation/devicetree/bindings/thermal/qcom-tsens.txt
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- protected-clocks : Protected clock specifier list as per common clock
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binding.
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For SM8150 only:
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- clocks: a list of phandles and clock-specifier pairs,
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one for each entry in clock-names.
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- clock-names: "bi_tcxo" (required)
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"sleep_clk" (optional)
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"aud_ref_clock" (optional)
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Example:
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clock-controller@900000 {
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compatible = "qcom,gcc-msm8960";
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reg = <0x900000 0x4000>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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#power-domain-cells = <1>;
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};
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Example of GCC with TSENS properties:
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clock-controller@900000 {
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compatible = "qcom,gcc-apq8064";
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reg = <0x00900000 0x4000>;
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nvmem-cells = <&tsens_calib>, <&tsens_backup>;
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nvmem-cell-names = "calib", "calib_backup";
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#clock-cells = <1>;
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#reset-cells = <1>;
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#thermal-sensor-cells = <1>;
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};
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Example of GCC with protected-clocks properties:
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clock-controller@100000 {
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compatible = "qcom,gcc-sdm845";
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reg = <0x100000 0x1f0000>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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#power-domain-cells = <1>;
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protected-clocks = <GCC_QSPI_CORE_CLK>,
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<GCC_QSPI_CORE_CLK_SRC>,
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<GCC_QSPI_CNOC_PERIPH_AHB_CLK>,
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<GCC_LPASS_Q6_AXI_CLK>,
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<GCC_LPASS_SWAY_CLK>;
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};
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Example of GCC with clocks
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gcc: clock-controller@100000 {
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compatible = "qcom,gcc-sm8150";
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reg = <0x00100000 0x1f0000>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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#power-domain-cells = <1>;
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clock-names = "bi_tcxo",
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"sleep_clk";
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clocks = <&rpmcc RPM_SMD_XO_CLK_SRC>,
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<&sleep_clk>;
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};
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