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From: Robin Murphy <robin.murphy@arm.com>
To: Ray Jui <ray.jui@broadcom.com>,
	Wim Van Sebroeck <wim@linux-watchdog.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Frank Rowand <frowand.list@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>
Cc: devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	bcm-kernel-feedback-list@broadcom.com,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805
Date: Wed, 23 May 2018 11:57:25 +0100	[thread overview]
Message-ID: <af81ea74-fb80-11e2-7bdc-d3607bdbd46b@arm.com> (raw)
In-Reply-To: <1527014840-21236-2-git-send-email-ray.jui@broadcom.com>

On 22/05/18 19:47, Ray Jui wrote:
> Update the SP805 binding document to add optional 'timeout-sec'
> devicetree property
> 
> Signed-off-by: Ray Jui <ray.jui@broadcom.com>
> Reviewed-by: Scott Branden <scott.branden@broadcom.com>
> ---
>   Documentation/devicetree/bindings/watchdog/sp805-wdt.txt | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> index edc4f0e..f898a86 100644
> --- a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> @@ -19,6 +19,8 @@ Required properties:
>   
>   Optional properties:
>   - interrupts : Should specify WDT interrupt number.
> +- timeout-sec : Should specify default WDT timeout in seconds. If unset, the
> +                default timeout is 30 seconds

According to the SP805 TRM, the default interval is dependent on the 
rate of WDOGCLK, but would typically be a lot longer than that :/

On a related note, anyone have any idea why we seem to have two subtly 
different SP805 bindings defined?

Robin.

>   
>   Examples:
>   
> 

WARNING: multiple messages have this Message-ID (diff)
From: robin.murphy@arm.com (Robin Murphy)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805
Date: Wed, 23 May 2018 11:57:25 +0100	[thread overview]
Message-ID: <af81ea74-fb80-11e2-7bdc-d3607bdbd46b@arm.com> (raw)
In-Reply-To: <1527014840-21236-2-git-send-email-ray.jui@broadcom.com>

On 22/05/18 19:47, Ray Jui wrote:
> Update the SP805 binding document to add optional 'timeout-sec'
> devicetree property
> 
> Signed-off-by: Ray Jui <ray.jui@broadcom.com>
> Reviewed-by: Scott Branden <scott.branden@broadcom.com>
> ---
>   Documentation/devicetree/bindings/watchdog/sp805-wdt.txt | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> index edc4f0e..f898a86 100644
> --- a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt
> @@ -19,6 +19,8 @@ Required properties:
>   
>   Optional properties:
>   - interrupts : Should specify WDT interrupt number.
> +- timeout-sec : Should specify default WDT timeout in seconds. If unset, the
> +                default timeout is 30 seconds

According to the SP805 TRM, the default interval is dependent on the 
rate of WDOGCLK, but would typically be a lot longer than that :/

On a related note, anyone have any idea why we seem to have two subtly 
different SP805 bindings defined?

Robin.

>   
>   Examples:
>   
> 

  parent reply	other threads:[~2018-05-23 10:57 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-22 18:47 [PATCH 0/5] Enhance support for the SP805 WDT Ray Jui
2018-05-22 18:47 ` Ray Jui
2018-05-22 18:47 ` [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805 Ray Jui
2018-05-22 18:47   ` Ray Jui
2018-05-22 20:56   ` Guenter Roeck
2018-05-22 20:56     ` Guenter Roeck
2018-05-23 10:57   ` Robin Murphy [this message]
2018-05-23 10:57     ` Robin Murphy
2018-05-23 16:25     ` Ray Jui
2018-05-23 16:25       ` Ray Jui
2018-05-23 18:59       ` Rob Herring
2018-05-23 18:59         ` Rob Herring
2018-05-23 19:29         ` Ray Jui
2018-05-23 19:29           ` Ray Jui
2018-05-24 13:52           ` Robin Murphy
2018-05-24 13:52             ` Robin Murphy
2018-05-23 18:10     ` Guenter Roeck
2018-05-23 18:10       ` Guenter Roeck
2018-05-24 13:25       ` Robin Murphy
2018-05-24 13:25         ` Robin Murphy
2018-05-24 16:07         ` Guenter Roeck
2018-05-24 16:07           ` Guenter Roeck
2018-05-22 18:47 ` [PATCH 2/5] watchdog: sp805: add 'timeout-sec' DT property support Ray Jui
2018-05-22 18:47   ` Ray Jui
2018-05-22 20:57   ` Guenter Roeck
2018-05-22 20:57     ` Guenter Roeck
2018-05-22 18:47 ` [PATCH 3/5] watchdog: sp805: set WDOG_HW_RUNNING when appropriate Ray Jui
2018-05-22 18:47   ` Ray Jui
2018-05-22 20:54   ` Guenter Roeck
2018-05-22 20:54     ` Guenter Roeck
2018-05-22 23:24     ` Ray Jui
2018-05-22 23:24       ` Ray Jui
2018-05-23  7:52       ` Scott Branden
2018-05-23  7:52         ` Scott Branden
2018-05-23 11:48         ` Robin Murphy
2018-05-23 11:48           ` Robin Murphy
2018-05-23 16:29           ` Ray Jui
2018-05-23 16:29             ` Ray Jui
2018-05-23 17:15             ` Robin Murphy
2018-05-23 17:15               ` Robin Murphy
2018-05-23 18:09               ` Guenter Roeck
2018-05-23 18:09                 ` Guenter Roeck
2018-05-23 19:35                 ` Ray Jui
2018-05-23 19:35                   ` Ray Jui
2018-05-23 17:15             ` Scott Branden
2018-05-23 17:15               ` Scott Branden
2018-05-23 18:06           ` Guenter Roeck
2018-05-23 18:06             ` Guenter Roeck
2018-05-22 18:47 ` [PATCH 4/5] arm64: dt: set initial SR watchdog timeout to 60 seconds Ray Jui
2018-05-22 18:47   ` Ray Jui
2018-05-22 18:47 ` [PATCH 5/5] arm64: defconfig: add CONFIG_ARM_SP805_WATCHDOG Ray Jui
2018-05-22 18:47   ` Ray Jui

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