Messages in this thread Patch in this message | | | From | Andrey Pronin <> | Subject | [PATCH v3 2/2] tpm_tis_spi: add max xfer size | Date | Wed, 27 Jul 2016 20:49:57 -0700 |
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Reject burstcounts larger than 64 bytes reported by tpm. SPI Hardware Protocol defined in section 6.4 of TCG PTP Spec supports up to 64 bytes of data in a transaction.
Signed-off-by: Andrey Pronin <apronin@chromium.org> --- drivers/char/tpm/tpm_tis_spi.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/char/tpm/tpm_tis_spi.c b/drivers/char/tpm/tpm_tis_spi.c index dbaad9c..b103373 100644 --- a/drivers/char/tpm/tpm_tis_spi.c +++ b/drivers/char/tpm/tpm_tis_spi.c @@ -206,6 +206,7 @@ static const struct tpm_tis_phy_ops tpm_spi_phy_ops = { .read16 = tpm_tis_spi_read16, .read32 = tpm_tis_spi_read32, .write32 = tpm_tis_spi_write32, + .max_xfer_size = MAX_SPI_FRAMESIZE, }; static int tpm_tis_spi_probe(struct spi_device *dev) -- 2.6.6
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