linux-kernel - Re: Fwd: Re: [PATCH 2/2] ARM: mvebu: dts: Add dts file for DLink DNS-327L

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Date:	Sun, 03 May 2015 14:37:59 +0300
From:	Andrew <andrew@...mnt.org>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Andrew Lunn <andrew@...n.ch>, Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	Linus Walleij <linus.walleij@...aro.org>,
	Wolfram Sang <wsa@...-dreams.de>, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-gpio@...r.kernel.org, Jason Cooper <jason@...edaemon.net>
Subject: Re: Fwd: Re: [PATCH 2/2] ARM: mvebu: dts: Add dts file for DLink  DNS-327L

Sebastian Hesselbarth писал 03.05.2015 13:58:
> On 03.05.2015 12:18, Andrew wrote:
> [...]
>> Sorry for the long delay with testing, but here come the results.
>> I've rebased everything to 4.1-rc1
>> 
>> 1. WFI + DeepIdle => freeze after approx:
>>    * 1 hours and 30 minutes, first test
>>    * 3 hours and 40 minutes, second test
>> 2. WFI only (DeepIdle disabled via sysfs) => Still alive after 13 
>> hours
>> and counting
>> 
>> The proper patchset will follow as soon as I figure out what change 
>> broke
>> dns320l-daemon (The utility that speaks to weltrend mcu on ttyS1)
>> It was working on 3.18.6, on 3.19 and up - it writes data to the port
>> (and mcu acks it),
>> but can't read any responses.
>> 
>> Same thing happens to the python (pyserial inside) implementation of 
>> the
>> fan-daemon:
>> https://github.com/martignlo/DNS-320L
> 
> Andrew,
> 
> did you realize that you request a non-standard UART baudrate in your
> python code above:
> 
> port = serial.Serial("/dev/ttyS1", 115600, 8, "N", 1, 0.1)
> 
> s/115600/115200/
> 
> Does that fix your communication issues?
> 
> Sebastian


If life was that simple ;-)
Unfortunately that's not the issue.
dns320l-daemon ( http://www.aboehler.at/hg/dns320l-daemon ) uses correct 
115200 baud and
doesn't work either.
Since I can transmit, but can't receive, I will be first checking out 
mpp settings
If that doesn't help, I guess it's git-bisect time.


-- 
Regards,
Andrew
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