3c51dd18f2
git-subtree-dir: qcom/camera git-subtree-mainline:8263fe365egit-subtree-split:a1378b76f0
133 lines
3.3 KiB
Plaintext
133 lines
3.3 KiB
Plaintext
* Qualcomm Technologies, Inc. MSM FLASH
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The MSM camera Flash driver provides the definitions for
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enabling and disabling LED Torch/Flash by requesting it to
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PMIC/I2C/GPIO based hardware. It provides the functions for
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the Client to control the Flash hardware.
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=======================================================
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Required Node Structure
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=======================================================
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The Flash device is described in one level of the device node.
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======================================
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First Level Node - CAM FLASH device
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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: Should be "qcom,camera-flash".
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- cell-index
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Usage: required
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Value type: <u32>
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Definition: Should specify the hardware index id.
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- reg
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Usage: required
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Value type: <u32>
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Definition: Register values.
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- flash-source
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Usage: required
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Value type: <phandle>
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Definition: Should contain array of phandles to Flash source nodes.
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- torch-source
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Usage: required
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Value type: <phandle>
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Definition: Should contain array of phandles to torch source nodes.
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- switch-source
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Usage: Optional
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Value type: <phandle>
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Definition: Should contain phandle to switch source nodes.
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- slave-id
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Usage: optional
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Value type: <u32>
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Definition: should contain i2c slave address, device id address
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and expected id read value.
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- cci-master
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Usage: optional
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Value type: <u32>
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Definition: should contain i2c master id to be used for this camera
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flash.
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- max-current
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Usage: optional
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Value type: <u32>
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Definition: Max current in mA supported by flash
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- max-duration
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Usage: optional
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Value type: <u32>
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Definition: Max duration in ms flash can glow.
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- wled-flash-support
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Usage: optional
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Value type: <boolean>
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Definition: To identity wled flash hardware support.
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- gpios
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Usage: optional
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Value type: <u32>
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Definition: should specify the gpios to be used for the flash.
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- gpio-req-tbl-num
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Usage: optional
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Value type: <u32>
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Definition: should specify the gpio table index.
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- gpio-req-tbl-flags
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Usage: optional
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Value type: <u32>
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Definition: should specify the gpio functions.
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- gpio-req-tbl-label
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Usage: optional
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Value type: <u32>
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Definition: should specify the gpio labels.
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- gpio-flash-reset
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Usage: optional
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Value type: <u32>
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Definition: should contain index to gpio used by flash's "flash reset" pin.
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- gpio-flash-en
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Usage: optional
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Value type: <u32>
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Definition: should contain index to gpio used by flash's "flash enable" pin.
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- gpio-flash-now
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Usage: optional
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Value type: <u32>
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Definition: should contain index to gpio used by flash's "flash now" pin.
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Example:
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led_flash_rear: qcom,camera-flash0 {
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reg = <0x00 0x00>;
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cell-index = <0>;
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compatible = "qcom,camera-flash";
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flash-source = <&pmi8998_flash0 &pmi8998_flash1>;
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torch-source = <&pmi8998_torch0 &pmi8998_torch1>;
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switch-source = <&pmi8998_switch0>;
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wled-flash-support;
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qcom,slave-id = <0x00 0x00 0x0011>;
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qcom,cci-master = <0>;
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gpios = <&msmgpio 23 0>,
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<&msmgpio 24 0>;
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<&msmgpio 25 0>;
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qcom,gpio-flash-reset = <0>;
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qcom,gpio-flash-en = <0>;
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qcom,gpio-flash-now = <1>;
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qcom,gpio-req-tbl-num = <0 1>;
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qcom,gpio-req-tbl-flags = <0 0>;
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qcom,gpio-req-tbl-label = "FLASH_EN",
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"FLASH_NOW";
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qcom,max-current = <1500>;
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qcom,max-duration = <1200>;
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};
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