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