u-boot.git/drivers/tpm, branch master

tpm: Make U_BOOT_DRIVER entries unique

2025-10-14T07:42:27+00:00

All instances of the U_BOOT_DRIVER must use a unique name or they will
lead to link time failures due to name space conflicts when both are
present. In this case the driver was reusing the tpm_tis_i2c name.

Signed-off-by: Tom Rini 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: tis_infineon: Cannot test unsigned for being negative

2025-08-25T10:04:21+00:00

tpm_tis_i2c_get_burstcount returns a size_t but also returns -EBUSY if
the TPM is surrently busy. As size_t is an unsigned type simply testing
for < 0 will not work so change the test for being equal to -EBUSY which
will work. Also remove the trivial comments.

This issue was found by Smatch.

Signed-off-by: Andrew Goodbody 
Acked-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: tpm_tis_infineon: Make use of 'z' for printing size_t

2025-08-25T10:04:21+00:00

When printing the contents of an size_t variable we need to use z prefix
to the format character in order to get the correct format type
depending on 32 or 64bit-ness.

Signed-off-by: Tom Rini 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: cr50_i2c: Make use of 'z' for printing size_t

2025-08-25T10:04:21+00:00

When printing the contents of an size_t variable we need to use z prefix
to the format character in order to get the correct format type
depending on 32 or 64bit-ness.

Signed-off-by: Tom Rini 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: tpm_tis_st33zp24: Remove unused drivers

2025-08-25T10:04:21+00:00

The tpm_tis_st33zp24_i2c and tpm_tis_st33zp24_spi drivers are unused.
Remove them.

Signed-off-by: Tom Rini 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: sandbox: Support self-test continue in emulator

2025-06-10T16:30:00+00:00

Add support for the self-test continue command in the TPM v1.2 emulator,
to match the functionality in the TPM v2 emulator.

Signed-off-by: Simon Glass 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

global: Add instead of long indirect include path

2025-05-29T14:29:16+00:00

In a number of cases we have C files which rely on a chain of indirect
include paths to get  to be included via . To
facilitate cleaning up  make this code directly include
.

Signed-off-by: Tom Rini

tpm: cr50: Support opening the TPM multiple times

2025-04-14T19:59:01+00:00

The tpm_auto_start() function is used in tests and assumes that it can
open the TPM even if it is already open and a locality claimed. The cr50
driver does not use the common TPM2 TIS code so lacks a check for the
is_open field of struct tpm_chip and in fact it doesn't use that struct.

Add an equivalent check to cr50_i2c_open().

This fixes all init sequences on that TPM -- e.g 'tpm init && tpm init'
or 'tpm autostart && tpm init' used to hang

Signed-off-by: Simon Glass 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas

tpm: unconstify tpm_tis_chip_data

2025-02-18T14:26:43+00:00

The struct contains an iomem pointer that we later remap and update.
Remove const from the struct definition.

Signed-off-by: Ilias Apalodimas

tcg2: decouple eventlog size from efi

2025-01-28T06:59:23+00:00

Move default eventlog size from efi to tpm for using in both
efi and measured boot.

Signed-off-by: Raymond Mao 
Reviewed-by: Ilias Apalodimas 
Signed-off-by: Ilias Apalodimas