diff options
| author | Marek Behún <kabel@kernel.org> | 2024-07-01 13:30:08 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2024-07-01 15:46:37 +0200 |
| commit | 41bb142a4028949a0c8c505f7f4963067b0a739f (patch) | |
| tree | bcc3aeca8bc9412ee6f400d166770a468313afbe /drivers/platform/cznic/turris-omnia-mcu-base.c | |
| parent | ab89fb5fb92c77a9486b6769bc8681251f094c67 (diff) | |
platform: cznic: turris-omnia-mcu: Add support for MCU provided TRNG
Add support for true random number generator provided by the MCU.
New Omnia boards come without the Atmel SHA204-A chip. Instead the
crypto functionality is provided by new microcontroller, which has
a TRNG peripheral.
Signed-off-by: Marek Behún <kabel@kernel.org>
Acked-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Link: https://lore.kernel.org/r/20240701113010.16447-7-kabel@kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/platform/cznic/turris-omnia-mcu-base.c')
| -rw-r--r-- | drivers/platform/cznic/turris-omnia-mcu-base.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/platform/cznic/turris-omnia-mcu-base.c b/drivers/platform/cznic/turris-omnia-mcu-base.c index 2d8e5c9a8dd1..c68a7a84a951 100644 --- a/drivers/platform/cznic/turris-omnia-mcu-base.c +++ b/drivers/platform/cznic/turris-omnia-mcu-base.c @@ -381,7 +381,11 @@ static int omnia_mcu_probe(struct i2c_client *client) if (err) return err; - return omnia_mcu_register_gpiochip(mcu); + err = omnia_mcu_register_gpiochip(mcu); + if (err) + return err; + + return omnia_mcu_register_trng(mcu); } static const struct of_device_id of_omnia_mcu_match[] = { |