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