tpm: tis_i2c: Limit read bursts to I2C_SMBUS_BLOCK_MAX (32) bytes
Underlying I2C bus drivers not always support longer transfers and imx-lpi2c for instance doesn't. SLB 9673 offers 427-bytes packets. Visible symptoms are: tpm tpm0: Error left over data tpm tpm0: tpm_transmit: tpm_recv: error -5 tpm_tis_i2c: probe of 1-002e failed with error -5 Cc: stable@vger.kernel.org # v5.20+ Fixes: bbc23a07 ("tpm: Add tpm_tis_i2c backend for tpm_tis_core") Tested-by:Michael Haener <michael.haener@siemens.com> Signed-off-by:
Alexander Sverdlin <alexander.sverdlin@siemens.com> Reviewed-by:
Jarkko Sakkinen <jarkko@kernel.org> Reviewed-by:
Jerry Snitselaar <jsnitsel@redhat.com> Signed-off-by:
Jarkko Sakkinen <jarkko@kernel.org>
parent
f0afba40
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