override the pin's existing bias (pull-up/pull-down) and value (high/low) when
IO isolation is active.
+ Support for I2C PMIC Voltage Scaling
+ ====================================
+ It is possible to pass the name of a binary file to load into the CM3 memory.
+ The binary data is the I2C sequences for the CM3 to send out to the PMIC
+ during low power mode entry.
+
properties:
compatible:
enum:
mbox_wkupm3 child node.
maxItems: 1
+ firmware-name:
+ description:
+ Name of binary file with I2C sequences for PMIC voltage scaling
+
ti,vtt-gpio-pin:
$ref: /schemas/types.yaml#/definitions/uint32
description: GPIO pin connected to enable pin on VTT regulator
ti,rproc = <&wkup_m3>;
mboxes = <&am335x_mailbox &mbox_wkupm3>;
ti,vtt-gpio-pin = <7>;
+ firmware-name = "am335x-evm-scale-data.bin";
};
};
ti,rproc = <&wkup_m3>;
mboxes = <&am437x_mailbox &mbox_wkupm3>;
ti,set-io-isolation;
+ firmware-name = "am43x-evm-scale-data.bin";
};
};