| Message ID | 1570001371-8174-1-git-send-email-eugen.hristev@microchip.com (mailing list archive) |
|---|---|
| State | Changes Requested |
| Headers | show |
| Series | [1/3] dt-bindings: watchdog: sam9x60_wdt: add bindings | expand |
On 02/10/2019 07:35:23+0000, Eugen.Hristev@microchip.com wrote: > From: Eugen Hristev <eugen.hristev@microchip.com> > > Add bindings for Microchip SAM9X60 Watchdog Timer > > It has the same bindings as > Documentation/devicetree/bindings/watchdog/atmel-sama5d4-wdt.txt > except the compatible. > Maybe it can then use the same documentation file. However, I think you should already use the yaml dt bindings schema instead of a simple text file. > Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com> > --- > .../devicetree/bindings/watchdog/sam9x60-wdt.txt | 34 ++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > create mode 100644 Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt > > diff --git a/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt > new file mode 100644 > index 00000000..74b4e2d > --- /dev/null > +++ b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt > @@ -0,0 +1,34 @@ > +* Microchip SAM9X60 Watchdog Timer (WDT) Controller > + > +Required properties: > +- compatible: "microchip,sam9x60-wdt" > +- reg: base physical address and length of memory mapped region. > + > +Optional properties: > +- timeout-sec: watchdog timeout value (in seconds). > +- interrupts: interrupt number to the CPU. > +- atmel,watchdog-type: should be "hardware" or "software". > + "hardware": enable watchdog fault reset. A watchdog fault triggers > + watchdog reset. > + "software": enable watchdog fault interrupt. A watchdog fault asserts > + watchdog interrupt. > +- atmel,idle-halt: present if you want to stop the watchdog when the CPU is > + in idle state. > + CAUTION: This property should be used with care, it actually makes the > + watchdog not counting when the CPU is in idle state, therefore the > + watchdog reset time depends on mean CPU usage and will not reset at all > + if the CPU stop working while it is in idle state, which is probably > + not what you want. > +- atmel,dbg-halt: present if you want to stop the watchdog when the CPU is > + in debug state. > + > +Example: > + watchdog@ffffff80 { > + compatible = "microchip,sam9x60-wdt"; > + reg = <0xffffff80 0x24>; > + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 5>; > + timeout-sec = <10>; > + atmel,watchdog-type = "hardware"; > + atmel,dbg-halt; > + atmel,idle-halt; > + }; > -- > 2.7.4 >
diff --git a/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt new file mode 100644 index 00000000..74b4e2d --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/sam9x60-wdt.txt @@ -0,0 +1,34 @@ +* Microchip SAM9X60 Watchdog Timer (WDT) Controller + +Required properties: +- compatible: "microchip,sam9x60-wdt" +- reg: base physical address and length of memory mapped region. + +Optional properties: +- timeout-sec: watchdog timeout value (in seconds). +- interrupts: interrupt number to the CPU. +- atmel,watchdog-type: should be "hardware" or "software". + "hardware": enable watchdog fault reset. A watchdog fault triggers + watchdog reset. + "software": enable watchdog fault interrupt. A watchdog fault asserts + watchdog interrupt. +- atmel,idle-halt: present if you want to stop the watchdog when the CPU is + in idle state. + CAUTION: This property should be used with care, it actually makes the + watchdog not counting when the CPU is in idle state, therefore the + watchdog reset time depends on mean CPU usage and will not reset at all + if the CPU stop working while it is in idle state, which is probably + not what you want. +- atmel,dbg-halt: present if you want to stop the watchdog when the CPU is + in debug state. + +Example: + watchdog@ffffff80 { + compatible = "microchip,sam9x60-wdt"; + reg = <0xffffff80 0x24>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 5>; + timeout-sec = <10>; + atmel,watchdog-type = "hardware"; + atmel,dbg-halt; + atmel,idle-halt; + };