[PATCH 6.1 0100/1146] tpm: tis_i2c: Fix sanity check interrupt enable mask

Greg Kroah-Hartman
2022-12-28T15:11:33Z

From: Eddie James <eajames@linux.ibm.com>

[ Upstream commit 561d6ef75628db9cce433e573aa3cdb6b3bba903 ]

The sanity check mask for TPM_INT_ENABLE register was off by 8 bits,
resulting in failure to probe if the TPM_INT_ENABLE register was a
valid value.

Fixes: bbc23a07b072 ("tpm: Add tpm_tis_i2c backend for tpm_tis_core")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Tested-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/tpm/tpm_tis_i2c.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_tis_i2c.c b/drivers/char/tpm/tpm_tis_i2c.c
index 0692510dfcab..635a69dfcbbd 100644
--- a/drivers/char/tpm/tpm_tis_i2c.c
+++ b/drivers/char/tpm/tpm_tis_i2c.c
@@ -49,7 +49,7 @@

/* Masks with bits that must be read zero */
#define TPM_ACCESS_READ_ZERO 0x48
-#define TPM_INT_ENABLE_ZERO 0x7FFFFF6
+#define TPM_INT_ENABLE_ZERO 0x7FFFFF60
#define TPM_STS_READ_ZERO 0x23
#define TPM_INTF_CAPABILITY_ZERO 0x0FFFF000
#define TPM_I2C_INTERFACE_CAPABILITY_ZERO 0x80000000
--
2.35.1