linux-kernel - Re: [PATCH v9 08/24] wfx: add bus

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Message-ID: <42104281.b1Mx7tgHyx@pc-42>
Date:   Wed, 12 Jan 2022 12:18:58 +0100
From:   Jérôme Pouiller <jerome.pouiller@...abs.com>
To:     Pali Rohár <pali@...nel.org>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        Kalle Valo <kvalo@...eaurora.org>, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "David S . Miller" <davem@...emloft.net>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        linux-mmc@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH v9 08/24] wfx: add bus_sdio.c

On Wednesday 12 January 2022 11:58:59 CET Pali Rohár wrote:
> On Tuesday 11 January 2022 18:14:08 Jerome Pouiller wrote:
> > +static const struct sdio_device_id wfx_sdio_ids[] = {
> > +     { SDIO_DEVICE(SDIO_VENDOR_ID_SILABS, SDIO_DEVICE_ID_SILABS_WF200) },
> > +     { },
> > +};
> 
> Hello! Is this table still required?

As far as I understand, if the driver does not provide an id_table, the
probe function won't be never called (see sdio_match_device()).

Since, we rely on the device tree, we could replace SDIO_VENDOR_ID_SILABS
and SDIO_DEVICE_ID_SILABS_WF200 by SDIO_ANY_ID. However, it does not hurt
to add an extra filter here.

> > +MODULE_DEVICE_TABLE(sdio, wfx_sdio_ids);
> > +
> > +struct sdio_driver wfx_sdio_driver = {
> > +     .name = "wfx-sdio",
> > +     .id_table = wfx_sdio_ids,
> > +     .probe = wfx_sdio_probe,
> > +     .remove = wfx_sdio_remove,
> > +     .drv = {
> > +             .owner = THIS_MODULE,
> > +             .of_match_table = wfx_sdio_of_match,
> > +     }
> > +};
> > --
> > 2.34.1
> >
> 


-- 
Jérôme Pouiller