34 lines
1.7 KiB
Plaintext
34 lines
1.7 KiB
Plaintext
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NVIDIA tegra isc mgr driver
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This file documents the properties used by the isc-mgr driver in tegra platform
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Required properties:
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- compatible : Should be "nvidia,isc-mgr"
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- i2c-bus : Should contain the i2c bus number that the device is attached to tegra for controlling the isc
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- csi-port : Should contain the csi port number that the device is attached to tegra for image streaming
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Optional properties:
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- pwdn-gpios : Should contain the list for gpios to control power in order of aggregator and camera instances
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- pwr-items : Map power items to the GPIO item specified in the pwdn-gpios list, starting from 0. For example,
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pwr-item 0 is for the deserializer, while pwr-item 1, 2, 3, 4 are for links 0, 1, 2, 3
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- default-power-on : If this property is used, while probing the device, pwdn-gpios are powered on
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- interrupt-parent : Should contain interrupt parent for gpio interrupt
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- interrupts : Should contain the gpio number that is connected to status pin in isc device
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- pwms : PWM property to point to the PWM chip, chip-relative PWM number and period in nano seconds
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Example:
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isc-mgr.0 {
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compatible = "nvidia,isc-mgr";
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i2c-bus = <2>;
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csi-port = <0>;
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pwdn-gpios = < &gpio TEGRA_GPIO(X, 1) GPIO_ACTIVE_HIGH /* GMSL_IN1_PDN */
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&gpio TEGRA_GPIO(H, 2) GPIO_ACTIVE_HIGH /* TA_TV1_TV2_ENA */
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&gpio TEGRA_GPIO(H, 5) GPIO_ACTIVE_HIGH>; /* TA_TV3_TV4_ENA */
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pwr-items = <0 1 1 2 2>; /* map pwr-items to pwdn-gpios */
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/* default-power-on; */ /* Deactivate pwdn-gpios */
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interrupt-parent = <&gpio>;
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interrupts = <TEGRA_GPIO(V, 2) 2>; /* gpio PS3 : falling edge sensitive */
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pwms = <&isc_pwm 0 33333333>; /* PWM name, chip-relative PWM number, period in nano seconds */
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status = "okay";
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};
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