diff options
| -rw-r--r-- | chip/npcx/cec.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/chip/npcx/cec.c b/chip/npcx/cec.c index da736edde8..540fa3c482 100644 --- a/chip/npcx/cec.c +++ b/chip/npcx/cec.c @@ -38,6 +38,9 @@ /* CEC broadcast address. Also the highest possible CEC address */ #define CEC_BROADCAST_ADDR 15 +/* Address to indicate that no logical address has been set */ +#define CEC_UNREGISTERED_ADDR 255 + /* * The CEC specification requires at least one and a maximum of * five resends attempts @@ -1045,7 +1048,8 @@ static int cec_set_enable(uint8_t enable) static int cec_set_logical_addr(uint8_t logical_addr) { - if (logical_addr >= CEC_BROADCAST_ADDR) + if (logical_addr >= CEC_BROADCAST_ADDR && + logical_addr != CEC_UNREGISTERED_ADDR) return EC_RES_INVALID_PARAM; cec_addr = logical_addr; |