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References: <20210216160525.5028-1-maciej.kwapulinski@linux.intel.com> <20210216160525.5028-2-maciej.kwapulinski@linux.intel.com> <CAHp75Vep0Fm1k_7gJcozk4t316QmUgt5Qe3PauwDg=py5VnHfQ@mail.gmail.com>
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From:   Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>
To:     Andy Shevchenko <andy.shevchenko@gmail.com>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Jonathan Corbet <corbet@lwn.net>,
        Derek Kiernan <derek.kiernan@xilinx.com>,
        Dragan Cvetic <dragan.cvetic@xilinx.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Documentation List <linux-doc@vger.kernel.org>,
        Tomasz Jankowski <tomasz1.jankowski@intel.com>,
        Savo Novakovic <savox.novakovic@intel.com>,
        Jianxun Zhang <jianxun.zhang@linux.intel.com>
Subject: Re: [PATCH v1 01/12] gna: add driver module
In-reply-to: <CAHp75Vep0Fm1k_7gJcozk4t316QmUgt5Qe3PauwDg=py5VnHfQ@mail.gmail.com>
Date:   Mon, 01 Mar 2021 11:18:59 +0100
Message-ID: <85ft1fjhws.fsf@linux.intel.com>
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Andy Shevchenko <andy.shevchenko@gmail.com> writes:

> On Tue, Feb 16, 2021 at 6:11 PM Maciej Kwapulinski
> <maciej.kwapulinski@linux.intel.com> wrote:
>>
....
>> +static int __init gna_drv_init(void)
>> +{
>> +       int ret;
>> +
>> +       mutex_init(&gna_drv_priv.lock);
>> +
>> +       gna_class = class_create(THIS_MODULE, "gna");
>> +       if (IS_ERR(gna_class)) {
>> +               pr_err("class device create failed\n");
>> +               return PTR_ERR(gna_class);
>> +       }
>> +       gna_class->devnode = gna_devnode;
>> +
>> +       ret = pci_register_driver(&gna_driver);
>
> Is it possible to decouple a PCI glue driver from the class as many
> other existing examples are doing?
>

I see many pci drivers (including staging) that do have it glued though.

Examples are:
1. "static int __init kp2000_pcie_init(void)" (commit on May 20 09:34:11
2019)
2. "static int __init hl_init(void)" (commit on Mon Feb 18 09:46:43 2019)

Please give me more details.