This patchset introduces a driver for the STM32 hardware random number
generator.
Herbert: I have assumed the v2 version is *so* badly broken (sorry
again for that) that you would probably choose to remove v2
completely and replace it with v3. In a moment I will also
post a patch to fix the build without ripping out v2. Choose
whichever suits you best.
v3:
* Fixed build with CONFIG_PM (Fengguang Wu). Runtime tested as normal
and also build tested on stm32 (which has CONFIG_PM set) and on
x86/COMPILE_TEST with and without CONFIG_PM.
v2:
* Moved binding docs from .../hwrng/ to .../rng/ and renamed to match
convention in new directory (Rob Herring).
* Adopted runtime PM and auto-suspend instead of managing the clocks
from the read function (Linus Walleij). Increased bandwidth by ~30%.
* Simplified error detection in main read loop (Linus Walleij, Maxime
Coquelin).
* Only WARN_ONCE() when hardware failure mechanisms trigger (Maxime
Coquelin).
* Simplify end of probe function after cocci warning (Fengguang Wu).
* Switch to devm_hwrng_register.
Daniel Thompson (3):
dt-bindings: Document the STM32 HW RNG bindings
hwrng: stm32 - add support for STM32 HW RNG
ARM: dts: stm32f429: Adopt STM32 RNG driver
.../devicetree/bindings/rng/st,stm32-rng.txt | 21 +++
arch/arm/boot/dts/stm32f429.dtsi | 7 +
drivers/char/hw_random/Kconfig | 12 ++
drivers/char/hw_random/Makefile | 1 +
drivers/char/hw_random/stm32-rng.c | 202 +++++++++++++++++++++
5 files changed, 243 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rng/st,stm32-rng.txt
create mode 100644 drivers/char/hw_random/stm32-rng.c
--
2.4.3
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