Re: [PATCH v9 01/24] mmc: sdio: add SDIO IDs for Silabs WF200 chip

Ulf Hansson
2022-01-12T10:59:10Z

On Tue, 11 Jan 2022 at 18:14, Jerome Pouiller
<Jerome.Pouiller@silabs.com> wrote:
>
> From: Jérôme Pouiller <jerome.pouiller@silabs.com>
>
> 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.
>
> So, to apply the quirks necessary for the Silabs WF200, we rely on the
> DT rather than on the SDIO VID/PID.
>
> Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>

I guess the series is getting close to getting queued up?

As an option to make sure $subject patch doesn't cause a problem for
that, I can queue it up and send it for the 5.17-rcs or if Kalle
prefer to carry this in this tree with my ack?

Kalle?

Kind regards
Uffe

> ---
> drivers/mmc/core/quirks.h | 5 +++++
> include/linux/mmc/sdio_ids.h | 7 +++++++
> 2 files changed, 12 insertions(+)
>
> 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/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h
> index a85c9f0bd470..483692f3002a 100644
> --- a/include/linux/mmc/sdio_ids.h
> +++ b/include/linux/mmc/sdio_ids.h
> @@ -25,6 +25,13 @@
> * 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
>
> --
> 2.34.1
>