55 lines
1.4 KiB
Plaintext
55 lines
1.4 KiB
Plaintext
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Qualcomm Technologies, Inc. QBT1000 Specific Bindings
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QBT is a fingerprint sensor ASIC capable of performing fingerprint image scans
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and detecting finger presence on the sensor using programmable firmware.
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=======================
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Required Node Structure
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=======================
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- compatible
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Usage: required
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Value type: <string>
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Definition: "qcom,qbt1000".
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- clock-names
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Usage: required
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Value type: <stringlist>
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Definition: List of clock names that need to be voted on/off.
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- clocks
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Usage: required
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Value type: <prop_encoded-array>
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Definition: Property pair that represents the clock controller and the clock
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id. This in combination with the clock-name is used to obtain
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the handle for the clock that needs to be voted on/off.
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- clock-frequency
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Usage: required
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Value type: <u32>
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Definition: Frequency of clock in Hz.
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- qcom,ipc-gpio
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Usage: required
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Value type: <phandle>
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Definition: phandle for GPIO to be used for IPC.
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- qcom,finger-detect-gpio
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Usage: required
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Value type: <phandle>
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Definition: phandle for GPIO to be used for finger detect.
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=======
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Example
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=======
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qcom,qbt1000 {
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compatible = "qcom,qbt1000";
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clock-names = "core", "iface";
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clocks = <&clock_gcc clk_gcc_blsp2_qup6_spi_apps_clk>,
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<&clock_gcc clk_gcc_blsp2_ahb_clk>;
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clock-frequency = <15000000>;
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qcom,ipc-gpio = <&tlmm 121 0>;
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qcom,finger-detect-gpio = <&pmcobalt_gpios 2 0>;
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};
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