diff options
Diffstat (limited to 'common/i2cs_tpm.c')
| -rw-r--r-- | common/i2cs_tpm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/common/i2cs_tpm.c b/common/i2cs_tpm.c index 4518eddbb9..cb893cf84f 100644 --- a/common/i2cs_tpm.c +++ b/common/i2cs_tpm.c @@ -208,6 +208,16 @@ static void wr_complete_handler(void *i2cs_data, size_t i2cs_data_size) * on the AP interrupt line for that. */ gpio_set_level(GPIO_INT_AP_L, 0); + + /* + * This is to meet the AP requirement of minimum 4 usec + * duration of INT_AP_L assertion. + * + * TODO(b/130515803): Ideally, this should be improved + * to support any duration requirement in future. + */ + tick_delay(2); + gpio_set_level(GPIO_INT_AP_L, 1); } |