[RFC PATCH 2/4] watchdog: at91sam9_wdt: update device tree doc
From: Grant Likely <hidden>
Date: 2013-06-11 22:29:43
Also in:
linux-devicetree, linux-watchdog, lkml
On Tue, 11 Jun 2013 12:51:27 +0200, Boris BREZILLON [off-list ref] wrote:
Add new at91sam9 watchdog properties to the documentation. Signed-off-by: Boris BREZILLON <redacted>
Looks reasonable, Acked-by: Grant Likely <redacted>
quoted hunk ↗ jump to hunk
--- .../devicetree/bindings/watchdog/atmel-wdt.txt | 30 ++++++++++++++++++-- 1 file changed, 28 insertions(+), 2 deletions(-)diff --git a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt index fcdd48f..e043106 100644 --- a/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/atmel-wdt.txt@@ -9,11 +9,37 @@ Required properties: Optional properties: - timeout-sec: contains the watchdog timeout in seconds. +- interrupts : Should contain WDT interrupt. +- atmel,max-heartbeat-sec : Should contain the maximum heartbeat value in + seconds. This value should be less than 16. It is used to compute the + WDV field. +- atmel,max-heartbeat-sec : Should contain the minimum heartbeat value in + seconds. This value should be less than 4 times the max-heartbeat-sec + value. It is used to compute the WDD field. +- atmel,watchdog-type : Should be "hardware" or "software". Hardware watchdog + use the at91 watchdog reset. Software watchdog use the watcdog interrup + to trigger a software reset. +- atmel,reset-type : Should be "proc" or "all". + "all" : assert peripherals and processor reset signals + "proc" : assert the processor reset signal + This is valid only when using "hardware" watchdog. +- atmel,disable : Should be present if you want to disable the watchdog. +- atmel,idle-halt : Should be present if you want to stop the watchdog when + entering idle state. +- atmel,dbg-halt : Should be present if you want to stop the watchdog when + entering debug state. Example: - watchdog at fffffd40 { compatible = "atmel,at91sam9260-wdt"; reg = <0xfffffd40 0x10>; - timeout-sec = <10>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + timeout-sec = <15>; + atmel,watchdog-type = "hardware"; + atmel,reset-type = "all"; + atmel,dbg-halt; + atmel,idle-halt; + atmel,max-heartbeat-sec = <16>; + atmel,min-heartbeat-sec = <0>; + status = "okay"; };-- 1.7.9.5
-- Grant Likely, B.Sc, P.Eng. Secret Lab Technologies, Ltd.