linux-kernel - Re: [RESEND PATCH v2 1/2] MFD: MAX77693: add MAX77693 MFD driver

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Message-id: <4FB09257.5020907@samsung.com>
Date:	Mon, 14 May 2012 14:04:23 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"myungjoo.ham@...sung.com" <myungjoo.ham@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>
Subject: Re: [RESEND PATCH v2 1/2] MFD: MAX77693: add MAX77693 MFD driver

Hi Samuel,

On 05/11/2012 11:15 PM, Samuel Ortiz wrote:

> Hi Choi,
> 
> On Tue, Mar 20, 2012 at 10:07:58AM +0900, Chanwoo Choi wrote:
>> @@ -0,0 +1,224 @@
>> +/*
>> + * max77693.c - mfd core driver for the MAX 77693
>> + *
>> + * Copyright (C) 2011 Samsung Electronics
> 2012 ?

I fix it.

> 
>> +int max77693_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest)
>> +{
>> +	struct max77693_dev *max77693 = i2c_get_clientdata(i2c);
>> +	int ret;
>> +
>> +	mutex_lock(&max77693->iolock);
>> +	ret = i2c_smbus_read_byte_data(i2c, reg);
>> +	mutex_unlock(&max77693->iolock);
> You don't need this locking as the i2c layer will do it for you.
> Also, this definitely look like a good candidate for a regmap API conversion,
> I'd appreciate if you could work on that.
> 

OK, I will apply regmap for i2c of MAX77693 and post new patchset.

>> +static struct i2c_driver max77693_i2c_driver = {
>> +	.driver = {
>> +		   .name = "max77693",
>> +		   .owner = THIS_MODULE,
>> +	},
>> +	.probe = max77693_i2c_probe,
>> +	.remove = max77693_i2c_remove,
>> +	.id_table = max77693_i2c_id,
>> +};
>> +
>> +static int __init max77693_i2c_init(void)
>> +{
>> +	return i2c_add_driver(&max77693_i2c_driver);
>> +}
>> +/* init early so consumer devices can complete system boot */
>> +subsys_initcall(max77693_i2c_init);
>> +
>> +static void __exit max77693_i2c_exit(void)
>> +{
>> +	i2c_del_driver(&max77693_i2c_driver);
>> +}
>> +module_exit(max77693_i2c_exit);
> You could use module_i2c_driver() here.


As Mark Brown said, I maintain it.

Thank you,

Best Regards,
Chanwoo Choi


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