[PATCH v2 06/18] dt-bindings: Document the STM32 reset bindings
From: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Date: 2015-02-20 18:06:55
Also in:
linux-arch, linux-arm-kernel, lkml
Subsystem:
open firmware and flattened device tree bindings, reset controller framework, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Philipp Zabel, Linus Torvalds
This adds documentation of device tree bindings for the STM32 reset controller. Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> --- .../devicetree/bindings/reset/st,stm32-reset.txt | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/st,stm32-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/st,stm32-reset.txt b/Documentation/devicetree/bindings/reset/st,stm32-reset.txt
new file mode 100644
index 0000000..5982528
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/st,stm32-reset.txt@@ -0,0 +1,36 @@ +STMicroelectronics STM32 Peripheral Reset Controller +==================================================== + +Please also refer to reset.txt in this directory for common reset +controller binding usage. + +Required properties: +- compatible: Should be "st,stm32-reset" +- reg: should be register base and length as documented in the + datasheet +- #reset-cells: 1, see below + +example: + +reset_ahb1: reset@40023810 { + #reset-cells = <1>; + compatible = "st,stm32-reset"; + reg = <0x40023810 0x4>; +}; + +Specifying softreset control of devices +======================================= + +Device nodes should specify the reset channel required in their "resets" +property, containing a phandle to the reset device node and an index specifying +which channel to use, as described in reset.txt + +example: + + timer2 { + resets = <&resets TIM2_RESET>; + }; + +Macro definitions for the supported reset channels can be found in: + +include/dt-bindings/reset/st,stm32f429.h
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1.9.1