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Commit 3ca0d714 authored by Alexander Sverdlin's avatar Alexander Sverdlin Committed by Bruce Ashfield
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tpm: tis_i2c: Limit write bursts to I2C_SMBUS_BLOCK_MAX (32) bytes

commit 83e7e5d8 upstream

Underlying I2C bus drivers not always support longer transfers and
imx-lpi2c for instance doesn't. The fix is symmetric to previous patch
which fixed the read direction.

Cc: stable@vger.kernel.org # v5.20+
Fixes: bbc23a07

 ("tpm: Add tpm_tis_i2c backend for tpm_tis_core")
Tested-by: default avatarMichael Haener <michael.haener@siemens.com>
Signed-off-by: default avatarAlexander Sverdlin <alexander.sverdlin@siemens.com>
Reviewed-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Reviewed-by: default avatarJerry Snitselaar <jsnitsel@redhat.com>
Signed-off-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: default avatarLi Wang <li.wang@windriver.com>
Signed-off-by: default avatarBruce Ashfield <bruce.ashfield@gmail.com>
parent e5745604
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