linux-kernel - Re: [PATCH 1/3] mfd: lp87565: Add lp87565 PMIC support

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Date:   Tue, 23 May 2017 15:41:02 +0530
From:   Keerthy <j-keerthy@...com>
To:     Lee Jones <lee.jones@...aro.org>
CC:     <broonie@...nel.org>, <robh+dt@...nel.org>, <t-kristo@...com>,
        <tony@...mide.com>, <mark.rutland@....com>,
        <linux-omap@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/3] mfd: lp87565: Add lp87565 PMIC support



On Tuesday 23 May 2017 02:15 PM, Lee Jones wrote:
> On Tue, 23 May 2017, Keerthy wrote:
>> On Tuesday 23 May 2017 12:27 PM, Lee Jones wrote:
>>> On Tue, 23 May 2017, Keerthy wrote:
>>>> On Monday 22 May 2017 11:18 PM, Lee Jones wrote:
>>>>> On Fri, 19 May 2017, Keerthy wrote:
>>>>>
>>>>>> The LP87565 chip is a power management IC for Portable Navigation Systems
>>>>>> and Tablet Computing devices. It contains the following components:
>>>>>>
>>>>>>         - Configurable Bucks(Single and multi-phase).
>>>>>>         - Configurable General Purpose Output Signals (GPO).
>>>>>>
>>>>>> The LP87565-Q1 variant device uses two 2-phase outputs configuration,
>>>>>> Buck0 is master for Buck0/1 output and Buck2 is master for Buck2/3
>>>>>> output.
>>>>>>
>>>>>> Signed-off-by: Keerthy <j-keerthy@...com>
>>>>>> ---
>>>>>>  Documentation/devicetree/bindings/mfd/lp87565.txt |  44 ++++
>>>>>>  drivers/mfd/Kconfig                               |  14 ++
>>>>>>  drivers/mfd/Makefile                              |   1 +
>>>>>>  drivers/mfd/lp87565.c                             | 103 ++++++++
>>>>>>  include/linux/mfd/lp87565.h                       | 275 ++++++++++++++++++++++
>>>>>>  5 files changed, 437 insertions(+)
>>>>>>  create mode 100644 Documentation/devicetree/bindings/mfd/lp87565.txt
>>>>>>  create mode 100644 drivers/mfd/lp87565.c
>>>>>>  create mode 100644 include/linux/mfd/lp87565.h
>>>>>>
>>>
>>> [...]
>>>
>>>>>> +/*
>>>>>> + * Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
>>>>>> + *
>>>>>> + * Author: Keerthy <j-keerthy@...com>
>>>>>
>>>>> We usually ask for full "first last" names.
>>>>
>>>> Keerthy is my full name and i do not have a surname.
>>>
>>> What is the 'J' for in your email address?
>>
>> Father's initials.
> 
> Okay.
> 
>>> [...]
>>>
>>>>>> +static const struct i2c_device_id lp87565_id_table[] = {
>>>>>> +	{ "lp87565-q1", 0 },
>>>>>> +	{ },
>>>>>> +};
>>>>>> +MODULE_DEVICE_TABLE(i2c, lp87565_id_table);
>>>>>
>>>>> Is this an OF only driver, or not?
>>>
>>> You didn't answer my question?
>>
>> Sorry i replied on top again. It will be an OF only driver.
> 
> Okay, then you don't need this table and you should depend on OF in
> the Kconfig file.

Okay. Cool thanks for this info.

I am seeing this commit: 4895e493f91bff7f96f328b883c7f6448aa6abc6

mfd: Export OF module alias information in missing drivers

So no need of i2c_device_id for any of the OF-only mfd drivers?

>