| # Copyright (c) 2022 Google LLC |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config USB_BC12_PI3USB9201 |
| bool "Diodes PI3USB9201" |
| default y |
| depends on DT_HAS_DIODES_PI3USB9201_ENABLED |
| help |
| This is a Dual-Role USB Charging-Type Detector. It can operate in |
| host or client mode. It supports Battery Charging Specification, rev |
| 1.2 (BC1.2) with Standard/Charging/Dedicated downstream port |
| (SDP/CDP/DCP) advertisement when in host mode. In portable device or |
| client mode it starts BC1.2 detection to detect the attached host |
| type. It provides an I2C interface to report detection results. |
| |
| config EMUL_BC12_PI3USB9201 |
| bool "Emulate a Pericom PI3USB9201 USB charging detector" |
| default y |
| depends on ZTEST && DT_HAS_DIODES_PI3USB9201_ENABLED |
| help |
| This is an emulator for the Pericom PI3USB9201 USB charging detector. |
| |
| The backend API allows test code to force the type of the partner |
| charginging device. |
| |
| if USB_BC12_PI3USB9201 |
| |
| config USB_BC12_PI3USB9201_CDP_ERRATA |
| bool "PI3USB9201 CDP Errata" |
| default y |
| help |
| When this option is enabled and the charging mode is configured for |
| CDP (Charging Downstream Port), after successful CDP detection the |
| driver automatically sets the charging mode to SDP (Standard |
| Downstream Port). |
| |
| This is a workaround for a glitch seen on the USB data lines when |
| operating in CDP mode. Note that the BC1.2 negotiation compeletes |
| before switching to SDP mode, so the attached portable device can |
| continue to draw up to 1.5 A. |
| |
| endif # USB_BC12_PI3USB9201 |
