diff options
| -rw-r--r-- | chip/stm32/i2c-stm32f0.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/chip/stm32/i2c-stm32f0.c b/chip/stm32/i2c-stm32f0.c index 1a289393d4..11dd4c7ba4 100644 --- a/chip/stm32/i2c-stm32f0.c +++ b/chip/stm32/i2c-stm32f0.c @@ -153,6 +153,14 @@ static void i2c_send_response_packet(struct host_packet *pkt) /* I2C is slow, so let other things run while we wait */ usleep(50); } + + /* + * If an error occurred. Set the transmitter not full so as to keep + * sending '0xec' in the event loop. That way the master doesn't have + * to snoop the response stream. + */ + if (pkt->driver_result != EC_RES_SUCCESS) + STM32_I2C_CR1(host_i2c_resp_port) |= STM32_I2C_CR1_TXIE; } /* Process the command in the i2c host buffer */ |