diff options
Diffstat (limited to 'chip/lm4/lpc.c')
| -rw-r--r-- | chip/lm4/lpc.c | 22 |
1 files changed, 4 insertions, 18 deletions
diff --git a/chip/lm4/lpc.c b/chip/lm4/lpc.c index 8f24bb2ed2..587c79c22a 100644 --- a/chip/lm4/lpc.c +++ b/chip/lm4/lpc.c @@ -208,17 +208,10 @@ static void lpc_send_response(struct host_cmd_handler_args *args) if (size > EC_PROTO2_MAX_PARAM_SIZE) args->result = EC_RES_INVALID_RESPONSE; - /* - * Write result to the data byte. This sets the TOH bit in the - * status byte and triggers an IRQ on the host so the host can read - * the result. - * - * TODO: (crosbug.com/p/7496) or it would, if we actually set up host - * IRQs - */ + /* Write result to the data byte. This sets the TOH status bit. */ LPC_POOL_CMD[1] = args->result; - /* Clear the busy bit */ + /* Clear the busy bit, so the host knows the EC is done. */ task_disable_irq(LM4_IRQ_LPC); LM4_LPC_ST(LPC_CH_CMD) &= ~LM4_LPC_ST_BUSY; task_enable_irq(LM4_IRQ_LPC); @@ -230,17 +223,10 @@ static void lpc_send_response_packet(struct host_packet *pkt) if (pkt->driver_result == EC_RES_IN_PROGRESS) return; - /* - * Write result to the data byte. This sets the TOH bit in the - * status byte and triggers an IRQ on the host so the host can read - * the result. - * - * TODO: (crosbug.com/p/7496) or it would, if we actually set up host - * IRQs - */ + /* Write result to the data byte. This sets the TOH status bit. */ LPC_POOL_CMD[1] = pkt->driver_result; - /* Clear the busy bit */ + /* Clear the busy bit, so the host knows the EC is done. */ task_disable_irq(LM4_IRQ_LPC); LM4_LPC_ST(LPC_CH_CMD) &= ~LM4_LPC_ST_BUSY; task_enable_irq(LM4_IRQ_LPC); |