On Thu, Oct 17, 2024 at 03:11:12PM +0200, Francesco Dolcini wrote: > On Wed, Oct 16, 2024 at 05:18:42PM +0200, Christian Marangi wrote: > > Add support for Airoha TRNG. The Airoha SoC provide a True RNG module > > that can output 4 bytes of raw data at times. > > > > The module makes use of various noise source to provide True Random > > Number Generation. > > > > On probe the module is reset to operate Health Test and verify correct > > execution of it. > > > > The module can also provide DRBG function but the execution mode is > > mutually exclusive, running as TRNG doesn't permit to also run it as > > DRBG. > > > > Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> > > --- > > drivers/char/hw_random/Kconfig | 13 ++ > > drivers/char/hw_random/Makefile | 1 + > > drivers/char/hw_random/airoha-trng.c | 243 +++++++++++++++++++++++++++ > > 3 files changed, 257 insertions(+) > > create mode 100644 drivers/char/hw_random/airoha-trng.c > > > > diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig > > index 5912c2dd6398..bda283f290bc 100644 > > --- a/drivers/char/hw_random/Kconfig > > +++ b/drivers/char/hw_random/Kconfig > > @@ -62,6 +62,19 @@ config HW_RANDOM_AMD > > > > If unsure, say Y. > > > > +config HW_RANDOM_AIROHA > > + tristate "Airoha True HW Random Number Generator support" > > + depends on ARCH_AIROHA || COMPILE_TEST > > > + default HW_RANDOM > This should not be always enabled when HW_RANDOM is enabled. Enabling > driver should be a opt-in. Was following the pattern with other HW_RANDOM config. Ok will drop. -- Ansuel
