linux-kernel - Re: [PATCH v6 04/10 RESEND] mfd: rt5033: Apply preparatory changes before adding rt5033-charger driver

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Date:   Thu, 25 May 2023 19:16:48 +0200
From:   Jakob Hauser <jahau@...ketmail.com>
To:     Lee Jones <lee@...nel.org>
Cc:     Sebastian Reichel <sre@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Beomho Seo <beomho.seo@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Stephan Gerhold <stephan@...hold.net>,
        Raymond Hackley <raymondhackley@...tonmail.com>,
        Pavel Machek <pavel@....cz>, Axel Lin <axel.lin@...ics.com>,
        ChiYuan Huang <cy_huang@...htek.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Henrik Grimler <henrik@...mler.se>,
        Christophe Jaillet <christophe.jaillet@...adoo.fr>,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, phone-devel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH v6 04/10 RESEND] mfd: rt5033: Apply preparatory changes
 before adding rt5033-charger driver

Hi Lee,

On 25.05.23 12:44, Lee Jones wrote:
> On Mon, 15 May 2023, Jakob Hauser wrote:

...

>> diff --git a/include/linux/mfd/rt5033.h b/include/linux/mfd/rt5033.h
>> index 8f306ac15a27..e99e2ab0c1c1 100644
>> --- a/include/linux/mfd/rt5033.h
>> +++ b/include/linux/mfd/rt5033.h
>> @@ -51,7 +51,7 @@ struct rt5033_charger_data {
>>   struct rt5033_charger {
>>   	struct device			*dev;
>>   	struct rt5033_dev		*rt5033;
>> -	struct power_supply		psy;
>> +	struct power_supply		*psy;
> 
> Is this current unused?

Currently this is not in use. The rt5033 charger driver gets introduced 
by this pachset.

The struct rt5033_charger was added in Dec 2014 with the mfd driver [1] 
but the charger driver didn't make it [2] and further effort to 
implement it phased out [3].

[1] https://lore.kernel.org/lkml/20141209140102.GZ3951@x1
[2] https://lore.kernel.org/lkml/20150122183037.GA24898@earth.universe
[3] 
https://lore.kernel.org/lkml/1425864191-4121-1-git-send-email-beomho.seo@samsung.com/T/#t

>>   	struct rt5033_charger_data	*chg;
>>   };
>>   

Kind regards,
Jakob