linux-kernel - Re: [PATCH] Add Silicom Platform Driver

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Message-ID: <a44a0433-9afc-a73a-43f9-6489ecf2c533@roeck-us.net>
Date:   Thu, 10 Aug 2023 11:00:01 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Huibin Shi <henrys@...icom-usa.com>,
        Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc:     "tglx@...utronix.de" <tglx@...utronix.de>,
        "mingo@...hat.com" <mingo@...hat.com>,
        "bp@...en8.de" <bp@...en8.de>,
        "dave.hansen@...ux.intel.com" <dave.hansen@...ux.intel.com>,
        "x86@...nel.org" <x86@...nel.org>, "hpa@...or.com" <hpa@...or.com>,
        "hdegoede@...hat.com" <hdegoede@...hat.com>,
        "markgross@...nel.org" <markgross@...nel.org>,
        "jdelvare@...e.com" <jdelvare@...e.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "linux-hwmon@...r.kernel.org" <linux-hwmon@...r.kernel.org>,
        "hb_shi2003@...oo.com" <hb_shi2003@...oo.com>,
        Wen Wang <wenw@...icom-usa.com>
Subject: Re: [PATCH] Add Silicom Platform Driver

On 8/10/23 10:48, Huibin Shi wrote:
> Ilpo,
> 
> See my comments below.
> 
> Thanks.
> Henry
> ----Original Message-----
> From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> Sent: Thursday, August 3, 2023 8:07 AM
> To: Huibin Shi <henrys@...icom-usa.com>
> Cc: tglx@...utronix.de; mingo@...hat.com; bp@...en8.de; dave.hansen@...ux.intel.com; x86@...nel.org; hpa@...or.com; hdegoede@...hat.com; markgross@...nel.org; jdelvare@...e.com; linux@...ck-us.net; linux-kernel@...r.kernel.org; platform-driver-x86@...r.kernel.org; linux-hwmon@...r.kernel.org; hb_shi2003@...oo.com; Wen Wang <wenw@...icom-usa.com>
> Subject: RE: [PATCH] Add Silicom Platform Driver
> 
> Caution: This is an external email. Please take care when clicking links or opening attachments.
> 
> 
> On Fri, 28 Jul 2023, Huibin Shi wrote:
> 
>> Ilpo,
>>
>> Thanks for the comments. See my comments below.
>>
>> Updated patch will be sent out later after review comments from other reviewer are addressed.
>>
>> Henry
>> -----Original Message-----
>> From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
>> Sent: Wednesday, July 19, 2023 8:13 AM
>> To: Henry Shi <henryshi2018@...il.com>
>> Cc: hbshi69@...mail.com; tglx@...utronix.de; mingo@...hat.com;
>> bp@...en8.de; dave.hansen@...ux.intel.com; x86@...nel.org;
>> hpa@...or.com; hdegoede@...hat.com; markgross@...nel.org;
>> jdelvare@...e.com; linux@...ck-us.net; LKML
>> <linux-kernel@...r.kernel.org>; platform-driver-x86@...r.kernel.org;
>> linux-hwmon@...r.kernel.org; hb_shi2003@...oo.com; Huibin Shi
>> <henrys@...icom-usa.com>; Wen Wang <wenw@...icom-usa.com>
>> Subject: Re: [PATCH] Add Silicom Platform Driver
>>
>> Caution: This is an external email. Please take care when clicking links or opening attachments.
>>
>>
>> On Tue, 18 Jul 2023, Henry Shi wrote:
>>
>>> The Silicom platform (silicom-platform) Linux driver for Swisscom
>>> Business Box (Swisscom BB) as well as Cordoba family products is a
>>> software solution designed to facilitate the efficient management
>>> and control of devices through the integration of various Linux
>>> frameworks. This platform driver provides seamless support for
>>> device management via the Linux LED framework, GPIO framework,
>>> Hardware Monitoring (HWMON), and device attributes. The Silicom
>>> platform driver's compatibility with these Linux frameworks allows
>>> applications to access and control Cordoba family devices using
>>> existing software that is compatible with these frameworks. This
>>> compatibility simplifies the development process, reduces
>>> dependencies on proprietary solutions, and promotes interoperability
>>> with other Linux-based systems and software.
>>>
>>> Signed-off-by: Henry Shi <henryshi2018@...il.com>
>>> ---
>>>   drivers/platform/x86/Kconfig            |   12 +
>>>   drivers/platform/x86/Makefile           |    1 +
>>>   drivers/platform/x86/silicom-platform.c | 1123
>>> +++++++++++++++++++++++
>>>   3 files changed, 1136 insertions(+)  create mode 100644
>>> drivers/platform/x86/silicom-platform.c
>>>
> 
>>> +void lock_io_modules(void)
>>> +{
>>> +     mutex_lock(&mec_io_mutex);
>>> +}
>>> +EXPORT_SYMBOL(lock_io_modules);
>>> +
>>> +void unlock_io_modules(void)
>>> +{
>>> +     mutex_unlock(&mec_io_mutex);
>>> +}
>>> +EXPORT_SYMBOL(unlock_io_modules);
> 
> These are unused.
> 
> Henry: This will be used by another Silicom driver, which source code is not pushed to kernel repository.
> 

Not an argument. Export it if and when needed. If that other driver won't be sent
upstream, the export should not be upstream either.

Guenter