linux-kernel - [PATCH 0/2] hwrng: exynos: enable GS101 TRNG support

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Message-Id: <20251022-gs101-trng-v1-0-8817e2d7a6fc@linaro.org>
Date: Wed, 22 Oct 2025 11:19:34 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Łukasz Stelmach <l.stelmach@...sung.com>, 
 Olivia Mackall <olivia@...enic.com>, 
 Herbert Xu <herbert@...dor.apana.org.au>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Peter Griffin <peter.griffin@...aro.org>, 
 André Draszik <andre.draszik@...aro.org>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, semen.protsenko@...aro.org, 
 willmcvicker@...gle.com, kernel-team@...roid.com, 
 linux-samsung-soc@...r.kernel.org, linux-crypto@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH 0/2] hwrng: exynos: enable GS101 TRNG support

Hi,

I propose the bindings to go through the Samsung tree as well so that we
can match the compatible with the schema when pulling the DT patch.

Thanks!
ta

---
Enable GS101 TRNG support. It works well with the current Exynos850 TRNG
support. Tested on pixel 6 like this:

10141400.rng

1+0 records in
1+0 records out
100000 bytes (100 kB, 98 KiB) copied, 2.03619 s, 49.1 kB/s

rngtest 6.17
...
rngtest: starting FIPS tests...
rngtest: bits received from input: 20000032
rngtest: FIPS 140-2 successes: 1000
rngtest: FIPS 140-2 failures: 0
rngtest: FIPS 140-2(2001-10-10) Monobit: 0
rngtest: FIPS 140-2(2001-10-10) Poker: 0
rngtest: FIPS 140-2(2001-10-10) Runs: 0
rngtest: FIPS 140-2(2001-10-10) Long run: 0
rngtest: FIPS 140-2(2001-10-10) Continuous run: 0
rngtest: input channel speed: (min=380.570; avg=385.422; max=386.964)Kibits/s
rngtest: FIPS tests speed: (min=75.092; avg=81.784; max=84.771)Mibits/s
rngtest: Program run time: 50908949 microseconds

To: Łukasz Stelmach <l.stelmach@...sung.com>
To: Olivia Mackall <olivia@...enic.com>
To: Herbert Xu <herbert@...dor.apana.org.au>
To: Rob Herring <robh@...nel.org>
To: Krzysztof Kozlowski <krzk+dt@...nel.org>
To: Conor Dooley <conor+dt@...nel.org>
To: Alim Akhtar <alim.akhtar@...sung.com>
To: Peter Griffin <peter.griffin@...aro.org>
To: André Draszik <andre.draszik@...aro.org>
Cc: Krzysztof Kozlowski <krzk@...nel.org>
Cc: semen.protsenko@...aro.org
Cc: willmcvicker@...gle.com
Cc: kernel-team@...roid.com
Cc: linux-samsung-soc@...r.kernel.org
Cc: linux-crypto@...r.kernel.org
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>

---
Tudor Ambarus (2):
      dt-bindings: rng: add google,gs101-trng compatible
      arm64: dts: exynos: gs101: add TRNG node

 .../devicetree/bindings/rng/samsung,exynos5250-trng.yaml       | 10 +++++++---
 arch/arm64/boot/dts/exynos/google/gs101.dtsi                   |  9 +++++++++
 2 files changed, 16 insertions(+), 3 deletions(-)
---
base-commit: 8ebc2add3e2d076adc5cc3e8c9bef268f7f1cb31
change-id: 20251022-gs101-trng-54b710218424

Best regards,
-- 
Tudor Ambarus <tudor.ambarus@...aro.org>