diff options
| -rw-r--r-- | chip/npcx/cec.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/chip/npcx/cec.c b/chip/npcx/cec.c index c58bef1ae9..7e89c60d6b 100644 --- a/chip/npcx/cec.c +++ b/chip/npcx/cec.c @@ -1023,6 +1023,10 @@ static int cec_set_enable(uint8_t enable) return EC_RES_SUCCESS; if (enable) { + /* Configure GPIO40/TA1 as capture timer input (TA1) */ + CLEAR_BIT(NPCX_DEVALT(0xC), NPCX_DEVALTC_TA1_SL2); + SET_BIT(NPCX_DEVALT(3), NPCX_DEVALT3_TA1_SL1); + enter_state(CEC_STATE_IDLE); /* @@ -1049,6 +1053,10 @@ static int cec_set_enable(uint8_t enable) task_disable_irq(NPCX_IRQ_MFT_1); + /* Configure GPIO40/TA1 back to GPIO */ + CLEAR_BIT(NPCX_DEVALT(3), NPCX_DEVALT3_TA1_SL1); + SET_BIT(NPCX_DEVALT(0xC), NPCX_DEVALTC_TA1_SL2); + enter_state(CEC_STATE_DISABLED); CPRINTF("CEC disabled\n"); @@ -1140,10 +1148,6 @@ static void cec_init(void) /* APB1 is the clock we base the timers on */ apb1_freq_div_10k = clock_get_apb1_freq()/10000; - /* Configure TA1 as capture timer input instead of GPIO */ - CLEAR_BIT(NPCX_DEVALT(0xC), NPCX_DEVALTC_TA1_SL2); - SET_BIT(NPCX_DEVALT(3), NPCX_DEVALT3_TA1_SL1); - /* Ensure Multi-Function timer is powered up. */ CLEAR_BIT(NPCX_PWDWN_CTL(mdl), NPCX_PWDWN_CTL1_MFT1_PD); |