/* * pp-var-usb-rvp * Enables Reference Validation Platform (RVP) specific USB-PD behavior. * Value: * 0 - Production behavior (Default). * 1 - RVP behavior (usually auto-detected via GPIO strap). */ #define CONFIG_USB_PD_RVP_SUPPORT #ifdef CONFIG_USB_PD_RVP_SUPPORT extern int pp_var_usb_rvp; #endif
The RVP (Reverse Voltage Protection) is the unsung hero here. Factories are electrostatic nightmares. A simple spark or a mis-plugged harness sends voltage screaming back up the line. Without RVP, that surge travels into the $10,000 programming computer. With RVP, a set of MOSFETs act like a one-way gate. The surge hits the gate, bounces off, and dies. The computer lives. pp-var-usb-rvp
: Check for a short circuit to ground on the line, which is frequently caused by a failed capacitor (like C6312 in some models). Component Inspection /* * pp-var-usb-rvp * Enables Reference Validation Platform
For the field technician, it means carrying one tool instead of a suitcase of power supplies. For the factory owner, it means fewer "mystery failures" at 3:00 AM. Without RVP, that surge travels into the $10,000