diff options
Diffstat (limited to 'common/i2cs_tpm.c')
| -rw-r--r-- | common/i2cs_tpm.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/common/i2cs_tpm.c b/common/i2cs_tpm.c index b9ab003b16..7700fd8373 100644 --- a/common/i2cs_tpm.c +++ b/common/i2cs_tpm.c @@ -9,6 +9,7 @@ #include "hooks.h" #include "i2cs.h" #include "registers.h" +#include "system.h" #include "tpm_registers.h" /* @@ -129,6 +130,14 @@ static void process_read_access(uint16_t reg_size, tpm_register_get(tpm_reg, data, reg_size); /* Transfer TPM fifo data to the I2CS HW fifo */ i2cs_post_read_fill_fifo(data, reg_size); + + /* + * Could be the end of a TPM trasaction. Set sleep to be reenabled in 1 + * second. If this is not the end of a TPM response, then sleep will be + * disabled again in the next I2CS interrupt. + */ + delay_sleep_by(1 * SECOND); + enable_sleep(SLEEP_MASK_I2C_SLAVE); } static void process_write_access(uint16_t reg_size, uint16_t tpm_reg, |