On Thu, Oct 17, 2024 at 03:13:37PM +0200, Christian Marangi wrote: > 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. Whoops. I missed that it depends on ARCH_AIROHA. Given that dependency is fine to me without any change. Francesco
