linux-kernel - Re: [PATCH v2 2/3] bq2415x_charger: Use power

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Message-Id: <201311272216.47390@pali>
Date:	Wed, 27 Nov 2013 22:16:47 +0100
From:	Pali Rohár <pali.rohar@...il.com>
To:	Sebastian Reichel <sre@...g0.de>
Cc:	Ивайло Димитров 
	<freemangordon@....bg>, pavel@....cz, anton@...msg.org,
	dwmw2@...radead.org, tony@...mide.com, linux@....linux.org.uk,
	linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
	aaro.koskinen@....fi
Subject: Re: [PATCH v2 2/3] bq2415x_charger: Use power_supply notifier for automode

On Monday 25 November 2013 22:50:01 Sebastian Reichel wrote:
> > 2 seems more generic to me, but as rx51-battery is missing
> > the functionality to send events on temperature change, I
> > guess 1 will be easier to implement.
> 
> The temperature must be polled anyway, if the ADC does not
> support interrupts.
> 

Yes, ADC does not support interrupts, temperature must be polled. 
Also bq27200 chip does not support interrupts, but 
bq27x00_battery driver using delayed work which every 60s poll 
all values (timeout can be configured via modprobe param). So 
similar code can be added to rx51_battery.ko too.

-- 
Pali Rohár
pali.rohar@...il.com

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