diff options
Diffstat (limited to 'src/drivers/i2c')
| -rw-r--r-- | src/drivers/i2c/tpm/cr50.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/drivers/i2c/tpm/cr50.c b/src/drivers/i2c/tpm/cr50.c index 6c12ee4e9e..415285297d 100644 --- a/src/drivers/i2c/tpm/cr50.c +++ b/src/drivers/i2c/tpm/cr50.c @@ -441,13 +441,14 @@ static int cr50_i2c_probe(struct tpm_chip *chip, uint32_t *did_vid) int retries; /* - * 200 ms should be enough to synchronize with the TPM even under the + * 1s should be enough to synchronize with the TPM even under the * worst nested reset request conditions. In vast majority of cases - * there would be no wait at all. + * there would be no wait at all. If this probe fails, boot likely + * cannot proceed, so an extra long timeout is appropriate. */ printk(BIOS_INFO, "Probing TPM I2C: "); - for (retries = 20; retries > 0; retries--) { + for (retries = 100; retries > 0; retries--) { int rc; rc = cr50_i2c_read(TPM_DID_VID(0), (uint8_t *)did_vid, 4); |