4.20-stable review patch. If anyone has any objections, please let me know.
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From: Tomas Winkler tomas.winkler@intel.com
commit 2ba5780ce30549cf57929b01d8cba6fe656e31c5 upstream.
tpm_i2c_nuvoton calculated commands duration using TPM 1.x values via tpm_calc_ordinal_duration() also for TPM 2.x chips. Call tpm2_calc_ordinal_duration() for retrieving ordinal duration for TPM 2.X chips.
Cc: stable@vger.kernel.org Cc: Nayna Jain nayna@linux.vnet.ibm.com Signed-off-by: Tomas Winkler tomas.winkler@intel.com Reviewed-by: Nayna Jain nayna@linux.ibm.com Tested-by: Nayna Jain nayna@linux.ibm.com (For TPM 2.0) Reviewed-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Signed-off-by: Jarkko Sakkinen jarkko.sakkinen@linux.intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/char/tpm/tpm_i2c_nuvoton.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-)
--- a/drivers/char/tpm/tpm_i2c_nuvoton.c +++ b/drivers/char/tpm/tpm_i2c_nuvoton.c @@ -369,6 +369,7 @@ static int i2c_nuvoton_send(struct tpm_c struct device *dev = chip->dev.parent; struct i2c_client *client = to_i2c_client(dev); u32 ordinal; + unsigned long duration; size_t count = 0; int burst_count, bytes2write, retries, rc = -EIO;
@@ -455,10 +456,12 @@ static int i2c_nuvoton_send(struct tpm_c return rc; } ordinal = be32_to_cpu(*((__be32 *) (buf + 6))); - rc = i2c_nuvoton_wait_for_data_avail(chip, - tpm_calc_ordinal_duration(chip, - ordinal), - &priv->read_queue); + if (chip->flags & TPM_CHIP_FLAG_TPM2) + duration = tpm2_calc_ordinal_duration(chip, ordinal); + else + duration = tpm_calc_ordinal_duration(chip, ordinal); + + rc = i2c_nuvoton_wait_for_data_avail(chip, duration, &priv->read_queue); if (rc) { dev_err(dev, "%s() timeout command duration\n", __func__); i2c_nuvoton_ready(chip);