linux-kernel - Re: [PATCH RFT] watchdog: da9063_wdt: parse DT for timeout value, too

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Message-ID: <20190415092853.GA1861@kunai>
Date:   Mon, 15 Apr 2019 11:28:53 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Steve Twiss <stwiss.opensource@...semi.com>
Cc:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        LINUX RENESAS SOC <linux-renesas-soc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Support Opensource <Support.Opensource@...semi.com>
Subject: Re: [PATCH RFT] watchdog: da9063_wdt: parse DT for timeout value, too

On Mon, Apr 15, 2019 at 08:11:16AM +0000, Steve Twiss wrote:
> Hi Wolfram,
> 
> On 14 April 2019 12:10, Wolfram Sang wrote:
> 
> > Tested with a Renesas Lager board (R-Car H2, DA9063AD), checking the initial
> > timeout value via sysfs. I didn't test handover from bootloader because my
> > bootloader neither supports WDT or I2C out of the box.
> 
> Can I please check there is no mistake in your description. I have been repeatedly
> told by the hardware engineers here, (for the past 6 years) it is not possible.
> But, you seem to have an R-Car H2 with the AD silicon version of DA9063?

I am confused, what is not possible? That I have an AD version? Yes, we
found that out when we worked on the RTC recently. It is an early
version of the Lager development board. I have no numbers but my
assumption is there are not too many out there.


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