diff options
| author | Jes Klinke <jbk@google.com> | 2020-12-01 14:43:31 -0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-12-08 16:54:56 +0000 |
| commit | f99f589ea9df2aca92d8b322094a551f98c64b67 (patch) | |
| tree | cf821593d6eace5b07212468cd95e3681712c40a /src/drivers/i2c/tpm | |
| parent | 9a1583b0302595a3427288c0ad48be8068d216fa (diff) | |
drivers/i2c/tpm: Unconditionally allow I2C TPM ACPI node
DRIVER_I2C_TPM_ACPI is used to enable the "driver" needed for coreboot
to present a TPM node in the devicetree. It would usually only do so,
if coreboot itself is communicating with the TPM via I2C (I2C_TPM).
However, technically, there is no dependency.
In order to not show the ACPI option in menuconfig if the board is not
using I2C, a dependency was declared in Kconfig. However, the same can
be achieved without making it an error to manually declare
DRIVER_I2C_TPM_ACPI without I2C_TPM.
For Volteer, we have just such a need, since it has two "sub-variants"
sharing the same overridetree.cb, one having SPI TPM and another having
I2C TPM. The former will have a disabled ACPI node representing the I2C
TPM, while its Kconfig is such that coreboot itself does not have I2C
TPM support.
In order to export even a disabled ACPI node representing the I2C
connected TPM, coreboot needs DRIVER_I2C_TPM_ACPI. Hence, that will
have to be enabled in a case where coreboot does not have I2C_TPM (for
one of the two sub-variants, namely volteer2).
BUG=b:173461736
TEST=Tested as part of next CL in chain
Change-Id: I9717f6b68afd90fbc294fbbd2a5b8d0c6ee9ae55
Signed-off-by: Jes Bodi Klinke <jbk@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48222
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/drivers/i2c/tpm')
| -rw-r--r-- | src/drivers/i2c/tpm/Kconfig | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/src/drivers/i2c/tpm/Kconfig b/src/drivers/i2c/tpm/Kconfig index 6a27224031..df622f079d 100644 --- a/src/drivers/i2c/tpm/Kconfig +++ b/src/drivers/i2c/tpm/Kconfig @@ -41,8 +41,7 @@ config DRIVER_TPM_I2C_ADDR depends on I2C_TPM config DRIVER_I2C_TPM_ACPI - depends on I2C_TPM - bool "Generate I2C TPM ACPI device" + bool "Generate I2C TPM ACPI device" if I2C_TPM default y if ARCH_X86 && I2C_TPM default n |