linux-kernel - Re: [PATCH 2/2] staging: wfx: apply the necessary SDIO quirks for the Silabs WF200

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Date:   Wed, 16 Feb 2022 10:51:39 +0100
From:   Pali Rohár <pali@...nel.org>
To:     Jerome Pouiller <Jerome.Pouiller@...abs.com>
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>,
        linux-mmc@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>
Subject: Re: [PATCH 2/2] staging: wfx: apply the necessary SDIO quirks for
 the Silabs WF200

On Wednesday 16 February 2022 10:31:12 Jerome Pouiller wrote:
> From: Jérôme Pouiller <jerome.pouiller@...abs.com>
> 
> Until now, the SDIO quirks are applied directly from the driver.
> However, it is better to apply the quirks before driver probing. So,
> this patch relocate the quirks in the MMC framework.
> 
> Note that the WF200 has no valid SDIO VID/PID. Therefore, we match DT
> rather than on the SDIO VID/PID.
> 
> Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>

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

> ---
>  drivers/mmc/core/quirks.h      | 5 +++++
>  drivers/staging/wfx/bus_sdio.c | 3 ---
>  2 files changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
> index 20f568727277..f879dc63d936 100644
> --- a/drivers/mmc/core/quirks.h
> +++ b/drivers/mmc/core/quirks.h
> @@ -149,6 +149,11 @@ static const struct mmc_fixup __maybe_unused sdio_fixup_methods[] = {
>  static const struct mmc_fixup __maybe_unused sdio_card_init_methods[] = {
>  	SDIO_FIXUP_COMPATIBLE("ti,wl1251", wl1251_quirk, 0),
>  
> +	SDIO_FIXUP_COMPATIBLE("silabs,wf200", add_quirk,
> +			      MMC_QUIRK_BROKEN_BYTE_MODE_512 |
> +			      MMC_QUIRK_LENIENT_FN0 |
> +			      MMC_QUIRK_BLKSZ_FOR_BYTE_MODE),
> +
>  	END_FIXUP
>  };
>  
> diff --git a/drivers/staging/wfx/bus_sdio.c b/drivers/staging/wfx/bus_sdio.c
> index 312d2d391a24..51a0d58a9070 100644
> --- a/drivers/staging/wfx/bus_sdio.c
> +++ b/drivers/staging/wfx/bus_sdio.c
> @@ -216,9 +216,6 @@ static int wfx_sdio_probe(struct sdio_func *func, const struct sdio_device_id *i
>  	bus->func = func;
>  	bus->of_irq = irq_of_parse_and_map(np, 0);
>  	sdio_set_drvdata(func, bus);
> -	func->card->quirks |= MMC_QUIRK_LENIENT_FN0 |
> -			      MMC_QUIRK_BLKSZ_FOR_BYTE_MODE |
> -			      MMC_QUIRK_BROKEN_BYTE_MODE_512;
>  
>  	sdio_claim_host(func);
>  	ret = sdio_enable_func(func);
> -- 
> 2.34.1
>