linux-kernel - Re: [PATCHv5 1/3] mfd: sec-core: Add support for S2MPU02 device

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Date:	Tue, 17 Jun 2014 09:18:41 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Lee Jones <lee.jones@...aro.org>
Cc:	sbkim73@...sung.com, sameo@...ux.intel.com,
	k.kozlowski@...sung.com, myungjoo.ham@...sung.com,
	kyungmin.park@...sung.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCHv5 1/3] mfd: sec-core: Add support for S2MPU02 device

Hi Lee,

On 06/16/2014 10:03 PM, Lee Jones wrote:
> On Mon, 16 Jun 2014, Chanwoo Choi wrote:
> 
>> Add support for Samsung S2MPU02 PMIC device to the MFD sec-core driver.
>> The S2MPU02 device includes PMIC/RTC/Clock devices.
>>
>> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
>> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
>> ---
>>  drivers/mfd/sec-core.c           | 19 +++++++++
>>  drivers/mfd/sec-irq.c            | 88 ++++++++++++++++++++++++++++++++++++++++
>>  include/linux/mfd/samsung/core.h |  1 +
>>  include/linux/mfd/samsung/irq.h  | 24 +++++++++++
>>  4 files changed, 132 insertions(+)
>>
>> diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
>> index be06d0a..5e8784b 100644
>> --- a/drivers/mfd/sec-core.c
>> +++ b/drivers/mfd/sec-core.c
>> @@ -89,6 +89,17 @@ static const struct mfd_cell s2mpa01_devs[] = {
>>  	},
>>  };
>>  
>> +static const struct mfd_cell s2mpu02_devs[] = {
>> +	{
>> +		.name = "s2mpu02-pmic",
>> +	}, {
>> +		.name = "s2mpu02-rtc",
> 
> Make these two one liners, so:
> 
>   { .name = "s2mpu02-pmic" },
>   { .name = "s2mpu02-rtc" ),

OK, I'll modify it.

> 
>> +	}, {
>> +		.name = "s2mpu02-clk",
>> +		.of_compatible = "samsung,s2mpu02-clk",
>> +	}
>> +};
>> +
>>  #ifdef CONFIG_OF
>>  static const struct of_device_id sec_dt_match[] = {
>>  	{	.compatible = "samsung,s5m8767-pmic",
>> @@ -103,6 +114,9 @@ static const struct of_device_id sec_dt_match[] = {
>>  		.compatible = "samsung,s2mpa01-pmic",
>>  		.data = (void *)S2MPA01,
>>  	}, {
>> +		.compatible = "samsung,s2mpu02-pmic",
>> +		.data = (void *)S2MPU02,
>> +	}, {
>>  		/* Sentinel */
>>  	},
>>  };
>> @@ -342,6 +356,11 @@ static int sec_pmic_probe(struct i2c_client *i2c,
>>  		ret = mfd_add_devices(sec_pmic->dev, -1, s2mps14_devs,
>>  				      ARRAY_SIZE(s2mps14_devs), NULL, 0, NULL);
>>  		break;
>> +	case S2MPU02:
>> +		ret = mfd_add_devices(sec_pmic->dev, -1, s2mpu02_devs,
>> +				      ARRAY_SIZE(s2mpu02_devs), NULL, 0, NULL);
>> +		break;
> 
> This is a bit bonkers.  Instead of passing S2MPU02, why don't you pass
> a new container which holds s2mpu02_devs and s2mpu02_irq_chip, then
> you won't need new mfd_add_devices() and regmap_add_irq_chip() calls
> for every device you want to support.

OK, I'll remove duplicate code of mfd_add_devices() and regmap_add_irq_chip().

Best Regards,
Chanwoo Choi






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