linux-kernel - Re: [PATCH v3] mfd: MAX6650/6651 support

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Message-ID: <CAOMwXhMJTeO8ev++dzXKtz8En9pK+3CkjmweuLsb5aoU+e=Aqw@mail.gmail.com>
Date:	Mon, 10 Feb 2014 13:17:04 +0000
From:	Laszlo Papp <lpapp@....org>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3] mfd: MAX6650/6651 support

>> +static struct mfd_cell max665x_devs[] = {
>> +     { .name = "max6651-gpio", },
>> +     { .name = "max6650", }, /* hwmon driver */
>
> What happened to renaming the hwmon driver, so we can have
> "max6650-hwmon" here?

I will add the alias in the next patch (e.g. hwmon change). I can come
back to this and rename then.

>> +static const struct i2c_device_id max665x_id[] = {
>> +     { "max6650", TYPE_MAX6650 },
>> +     { "max6651", TYPE_MAX6651 },
>> +     {},
>
> Can you remind me where these IDs are being used?

Strictly speaking, not in this change, so I can remove it and add
later if needed.

>> +};
>> +MODULE_DEVICE_TABLE(i2c, max665x_id);
>> +
>> +static struct i2c_driver max665x_driver = {
>> +     .driver = {
>> +             .name = "max665x",
>> +             .owner = THIS_MODULE,
>
> All new drivers are required to support Device Tree.

Do you have some recommendation for documentation, examples, etc? I am
new to this.

> <snip>
>
>> +#ifndef __LINUX_MFD_MAX665X_PRIVATE_H
>> +#define __LINUX_MFD_MAX665X_PRIVATE_H
>> +
>> +#include <linux/i2c.h>
>> +#include <linux/export.h>
>
> What's this here for?

Good catch, the export line is a left-over.
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