linux-kernel - Re: [PATCH v6 2/2] leds: lp55xx: configure internal charge pump

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Date:   Thu, 6 Apr 2023 10:28:42 +0200
From:   Maarten Zanders <maarten.zanders@...d.be>
To:     Lee Jones <lee@...nel.org>
Cc:     Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jacek Anaszewski <jacek.anaszewski@...il.com>,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 2/2] leds: lp55xx: configure internal charge pump


> Sorry Maarten, just a couple of small nits.

No need to be sorry.


> This fits on one line, no?  < 100-chars?

I thought the line length was meant to be <80 chars according to:

https://www.kernel.org/doc/html/latest/process/coding-style.html#breaking-long-lines-and-strings

Happy to adapt if this shouldn't be taken as strict as I tried to do. 
Either way I'll post an update with a cleanup.

>
>> --- a/include/linux/platform_data/leds-lp55xx.h
>> +++ b/include/linux/platform_data/leds-lp55xx.h
>> @@ -73,6 +73,9 @@ struct lp55xx_platform_data {
>>   	/* Clock configuration */
>>   	u8 clock_mode;
>>
>> +	/* Charge pump mode */
>> +	u32 charge_pump_mode;
> That's a lot of data.  Does it need to be u32?

No, it luckily doesn't get that big. This is to avoid an intermediate 
variable & casting as the DT parameter has to be 32bit (which I learned 
from an earlier comment). It was changed from u8 in v5 of the patch.

Thanks for the review,
Maarten