linux-kernel - Re: [PATCH v2 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

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Message-ID: <20201021223020.btkgdo7cgzavxbpk@pali>
Date:   Thu, 22 Oct 2020 00:30:20 +0200
From:   Pali Rohár <pali@...nel.org>
To:     Jerome Pouiller <Jerome.Pouiller@...abs.com>
Cc:     linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Kalle Valo <kvalo@...eaurora.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 v2 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

On Tuesday 20 October 2020 14:57:54 Jerome Pouiller wrote:
> From: Jérôme Pouiller <jerome.pouiller@...abs.com>
> 
> Add Silabs SDIO ID to sdio_ids.h.
> 
> Note that the values used by Silabs are uncommon. A driver cannot fully
> rely on the SDIO PnP. It should also check if the device is declared in
> the DT.
> 
> Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>

Looks good!

Acked-by: Pali Rohár <pali@...nel.org>

> ---
>  include/linux/mmc/sdio_ids.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
> index 12036619346c..20a48162f7fc 100644
> --- a/include/linux/mmc/sdio_ids.h
> +++ b/include/linux/mmc/sdio_ids.h
> @@ -25,6 +25,11 @@
>   * Vendors and devices.  Sort key: vendor first, device next.
>   */
>  
> +// Silabs does not use a reliable vendor ID. To avoid conflicts, the driver
> +// won't probe the device if it is not also declared in the DT.
> +#define SDIO_VENDOR_ID_SILABS			0x0000
> +#define SDIO_DEVICE_ID_SILABS_WF200		0x1000
> +
>  #define SDIO_VENDOR_ID_STE			0x0020
>  #define SDIO_DEVICE_ID_STE_CW1200		0x2280
>  
> -- 
> 2.28.0
>