diff options
Diffstat (limited to 'include/config.h')
| -rw-r--r-- | include/config.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/include/config.h b/include/config.h index 3bc1635a84..487a65c045 100644 --- a/include/config.h +++ b/include/config.h @@ -4203,6 +4203,9 @@ /* Define EC and TCPC modules are in one integrated chip */ #undef CONFIG_USB_PD_TCPC_ON_CHIP +/* If VCONN is enabled, the TCPC will provide VCONN */ +#define CONFIG_USB_PD_TCPC_VCONN + /* Enable the encoding of msg SOP* in bits 31-28 of 32-bit msg header type */ #undef CONFIG_USB_PD_DECODE_SOP @@ -5416,10 +5419,21 @@ #define CONFIG_USBC_PPC_VCONN #endif -/* The SYV682X supports VCONN and needs to be informed of CC polarity */ +/* + * The SYV682X supports VCONN and needs to be informed of CC polarity. + * There is a 3.6V limit on the HOST_CC signals, so the TCPC should not source + * 5V VCONN. + * + * For the ITE integrated TCPC, it wants to be notified of VCONN but won't + * source VCONN itself, so is safe to keep enabled. + */ #if defined(CONFIG_USBC_PPC_SYV682X) #define CONFIG_USBC_PPC_POLARITY #define CONFIG_USBC_PPC_VCONN +#if !defined(CONFIG_USB_PD_TCPM_DRIVER_IT83XX) && \ + !defined(CONFIG_USB_PD_TCPM_DRIVER_IT8XXX2) +#undef CONFIG_USB_PD_TCPC_VCONN +#endif #endif /*****************************************************************************/ |