linux-kernel - Re: [PATCH v4 2/5] mfd: mp2629: Add support for mps battery charger

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Date:   Fri, 27 Mar 2020 13:40:07 +0100
From:   saravanan sekar <sravanhome@...il.com>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     robh+dt@...nel.org, jic23@...nel.org, knaack.h@....de,
        lars@...afoo.de, pmeerw@...erw.net, sre@...nel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-pm@...r.kernel.org,
        andriy.shevchenko@...ux.intel.com
Subject: Re: [PATCH v4 2/5] mfd: mp2629: Add support for mps battery charger

Hi Lee, Andy

On 27/03/20 12:25 pm, Lee Jones wrote:
> On Fri, 27 Mar 2020, saravanan sekar wrote:
>> On 27/03/20 11:22 am, Lee Jones wrote:
>>> Saravanan, Jonathan,
>>>
>>> On Fri, 27 Mar 2020, saravanan sekar wrote:
>>>> On 27/03/20 8:55 am, Lee Jones wrote:
>>>>> On Sun, 22 Mar 2020, Saravanan Sekar wrote:
>>>>>
>>>>>> mp2629 is a highly-integrated switching-mode battery charge management
>>>>>> device for single-cell Li-ion or Li-polymer battery.
>>>>>>
>>>>>> Add MFD core enables chip access for ADC driver for battery readings,
>>>>>> and a power supply battery-charger driver
>>>>>>
>>>>>> Signed-off-by: Saravanan Sekar <sravanhome@...il.com>
>>>>>> ---
>>>>>>     drivers/mfd/Kconfig        |   9 +++
>>>>>>     drivers/mfd/Makefile       |   2 +
>>>>>>     drivers/mfd/mp2629.c       | 116 +++++++++++++++++++++++++++++++++++++
>>>>>>     include/linux/mfd/mp2629.h |  22 +++++++
>>>>>>     4 files changed, 149 insertions(+)
>>>>>>     create mode 100644 drivers/mfd/mp2629.c
>>>>>>     create mode 100644 include/linux/mfd/mp2629.h
> [...]
>
>>>>>> +#ifndef __MP2629_H__
>>>>>> +#define __MP2629_H__
>>>>>> +
>>>>>> +#include <linux/types.h>
>>>>>> +
>>>>>> +struct device;
>>>>>> +struct regmap;
>>>>> Why not just add the includes?
>>>> Some more shared enum added in ADC driver
>>> Sorry?
>> I misunderstood your previous question that you are asking to remove this
>> mp2629.h file
>>
>> "No user here. (Hint: Use forward declaration of struct device instead)" -
>> review comments on V1 from Andy Shevchenko.
>> So remove the includes
> So Andy has reviewed, but you still don't have him on Cc?
Sorry one of his hint made me removed him in CC unknowingly.

"For the future, hint:
         scripts/get_maintainer.pl --git --git-min-percent=67 ..."

My fault, added him in CC

> How are we meant to continue the discussion?
>
> As a general rule I'm not a fan of forward declarations.
>
> I think they should be avoided if at all possible.
Ok will add includes
>>>>>> +struct mp2629_info {
>>>>>> +	struct device *dev;
>>>>>> +	struct regmap *regmap;
>>>>>> +};
>>>>>> +
>>>>>> +#endif