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authorSughosh Ganu <sughosh.ganu@linaro.org>2022-07-22 19:02:04 +0300
committerIlias Apalodimas <ilias.apalodimas@linaro.org>2022-08-02 23:50:02 +0300
commite67ffb5aa5ab03a89305f4575ad3142486f9a306 (patch)
tree624c26edcc914c27bcdd0a8a04e4490995572d84 /lib/Kconfig
parent5d98329196daaf624c39304aec1397d6363b3e72 (diff)
downloadu-boot-e67ffb5aa5ab03a89305f4575ad3142486f9a306.tar.xz
tpm: rng: Add driver model interface for TPM RNG device
The TPM device has a builtin random number generator(RNG) functionality. Expose the RNG functions of the TPM device to the driver model so that they can be used by the EFI_RNG_PROTOCOL if the protocol is installed. Also change the function arguments and return type of the random number functions to comply with the driver model api. Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org> Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org> Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Diffstat (limited to 'lib/Kconfig')
-rw-r--r--lib/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Kconfig b/lib/Kconfig
index 7dd777b56a..e888c29245 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -360,6 +360,7 @@ source lib/crypt/Kconfig
config TPM
bool "Trusted Platform Module (TPM) Support"
depends on DM
+ imply DM_RNG
help
This enables support for TPMs which can be used to provide security
features for your board. The TPM can be connected via LPC or I2C