linux-kernel - Re: [PATCH/RFC v8 12/14] leds: Add driver for AAT1290 current regulator

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Message-id: <547C5540.2070304@samsung.com>
Date:	Mon, 01 Dec 2014 12:47:12 +0100
From:	Jacek Anaszewski <j.anaszewski@...sung.com>
To:	Pavel Machek <pavel@....cz>
Cc:	linux-leds@...r.kernel.org, linux-media@...r.kernel.org,
	linux-kernel@...r.kernel.org, kyungmin.park@...sung.com,
	b.zolnierkie@...sung.com, cooloney@...il.com, rpurdie@...ys.net,
	sakari.ailus@....fi, s.nawrocki@...sung.com
Subject: Re: [PATCH/RFC v8 12/14] leds: Add driver for AAT1290 current regulator

Hi Pavel,

Thanks for a review.

On 11/29/2014 08:05 PM, Pavel Machek wrote:
> Hi!
>
>
>> @@ -0,0 +1,472 @@
>> +/*
>> + *	LED Flash class driver for the AAT1290
>> + *	1.5A Step-Up Current Regulator for Flash LEDs
>> + *
>> + *	Copyright (C) 2014, Samsung Electronics Co., Ltd.
>> + *	Author: Jacek Anaszewski <j.anaszewski@...sung.com>
>> + *
>> + * This program is free software; you can redistribute it and/or
>> + * modify it under the terms of the GNU General Public License
>> + * version 2 as published by the Free Software Foundation.
>> + */
>> +
>
>> +#define AAT1290_MM_TO_FL_1_92	1
>> +#define AAT1290_MM_TO_FL_3_7	2
>> +#define AAT1290_MM_TO_FL_5_5	3
>> +#define AAT1290_MM_TO_FL_7_3	4
>> +#define AAT1290_MM_TO_FL_9	5
>> +#define AAT1290_MM_TO_FL_10_7	6
>> +#define AAT1290_MM_TO_FL_12_4	7
>> +#define AAT1290_MM_TO_FL_14	8
>> +#define AAT1290_MM_TO_FL_15_9	9
>> +#define AAT1290_MM_TO_FL_17_5	10
>> +#define AAT1290_MM_TO_FL_19_1	11
>> +#define AAT1290_MM_TO_FL_20_8	12
>> +#define AAT1290_MM_TO_FL_22_4	13
>> +#define AAT1290_MM_TO_FL_24	14
>> +#define AAT1290_MM_TO_FL_25_6	15
>> +#define AAT1290_MM_TO_FL_OFF	16
>
> Only one of these defines is unused.

The only cost of these macros are lines of code and I think
it is worth of having all the possible settings listed in one place.

>
>> +static struct of_device_id aat1290_led_dt_match[] = {
>
>> +	{.compatible = "skyworks,aat1290"},
>
> spaces after { and before } ?

I see both styles in kernel, but ok, I will add spaces.

Regards,
Jacek

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