linux-kernel - Re: [PATCH 2/2] gpio: Add GPIO driver for Spreadtrum SC9860 platform

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Message-ID: <CAMz4kuLO=zRqg72=7dC2fLHyVcEOcsU0PqiZM8XEYC3TGT1fYA@mail.gmail.com>
Date:   Thu, 1 Feb 2018 11:08:46 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Mark Brown <broonie@...nel.org>
Subject: Re: [PATCH 2/2] gpio: Add GPIO driver for Spreadtrum SC9860 platform

On 31 January 2018 at 22:23, Andy Shevchenko <andy.shevchenko@...il.com> wrote:
> On Wed, Jan 31, 2018 at 4:01 AM, Baolin Wang <baolin.wang@...aro.org> wrote:
>> On 31 January 2018 at 00:48, Andy Shevchenko <andy.shevchenko@...il.com> wrote:
>>> On Tue, Jan 30, 2018 at 2:07 PM, Baolin Wang <baolin.wang@...aro.org> wrote:
>>>> The Spreadtrum SC9860 platform GPIO controller contains 16 groups and
>>>> each group contains 16 GPIOs. Each GPIO can set input/output and has
>>>> the interrupt capability.
>>>
>>>> +config GPIO_SPRD
>>>
>>>> +       bool "Spreadtrum GPIO support"
>>>
>>> Either you have to put tristate here, or remove all redundant
>>> module_*() and MODULE_*() macros.
>>
>> I will remove module_*() and MODULE_*() macros in next version. Thanks
>> for your comments.
>
> In that case you need to explain why driver can't be module. (And
> don't forget to replace module.h with init.h).

After more investigation, I found most GPIO dependencies can be
deferred to probe. So I will change the GPIO driver to module level
and change bool to tristate in next version.

-- 
Baolin.wang
Best Regards