linux-kernel - Re: [PATCH v2] mmc: core: apply SD quirks earlier during probe

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Message-ID: <CAPDyKFpryBDxAcuGd_AsoOJRr84kfvbXgM=eTaMjOBPGXhohsw@mail.gmail.com>
Date: Mon, 26 Aug 2024 13:38:31 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Keita Aihara <keita.aihara@...y.com>
Cc: Jonathan Bell <jonathan@...pberrypi.com>, Tim.Bird@...y.com, Shingo.Takeuchi@...y.com, 
	Masaya.Takahashi@...y.com, linux-mmc@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mmc: core: apply SD quirks earlier during probe

On Wed, 21 Aug 2024 at 01:06, Keita Aihara <keita.aihara@...y.com> wrote:
>
> From: Jonathan Bell <jonathan@...pberrypi.com>
>
> Applying MMC_QUIRK_BROKEN_SD_CACHE is broken, as the card's SD quirks
> are referenced in sd_parse_ext_reg_perf() prior to the quirks being
> initialized in mmc_blk_probe().
>
> Split this out into a SD-specific list of quirks and apply in
> mmc_sd_init_card() instead.
>
> Fixes: c467c8f08185 ("mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston Canvas Go Plus from 11/2019")
> Signed-off-by: Jonathan Bell <jonathan@...pberrypi.com>
> Co-developed-by: Keita Aihara <keita.aihara@...y.com>
> Signed-off-by: Keita Aihara <keita.aihara@...y.com>

Applied for fixes and by adding a stable-tag, thanks!

Kind regards
Uffe


> ---
>  drivers/mmc/core/quirks.h | 22 +++++++++++++---------
>  drivers/mmc/core/sd.c     |  4 ++++
>  2 files changed, 17 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/mmc/core/quirks.h b/drivers/mmc/core/quirks.h
> index cca71867bc4a..92905fc46436 100644
> --- a/drivers/mmc/core/quirks.h
> +++ b/drivers/mmc/core/quirks.h
> @@ -15,6 +15,19 @@
>
>  #include "card.h"
>
> +static const struct mmc_fixup __maybe_unused mmc_sd_fixups[] = {
> +       /*
> +        * Kingston Canvas Go! Plus microSD cards never finish SD cache flush.
> +        * This has so far only been observed on cards from 11/2019, while new
> +        * cards from 2023/05 do not exhibit this behavior.
> +        */
> +       _FIXUP_EXT("SD64G", CID_MANFID_KINGSTON_SD, 0x5449, 2019, 11,
> +                  0, -1ull, SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_sd,
> +                  MMC_QUIRK_BROKEN_SD_CACHE, EXT_CSD_REV_ANY),
> +
> +       END_FIXUP
> +};
> +
>  static const struct mmc_fixup __maybe_unused mmc_blk_fixups[] = {
>  #define INAND_CMD38_ARG_EXT_CSD  113
>  #define INAND_CMD38_ARG_ERASE    0x00
> @@ -53,15 +66,6 @@ static const struct mmc_fixup __maybe_unused mmc_blk_fixups[] = {
>         MMC_FIXUP("MMC32G", CID_MANFID_TOSHIBA, CID_OEMID_ANY, add_quirk_mmc,
>                   MMC_QUIRK_BLK_NO_CMD23),
>
> -       /*
> -        * Kingston Canvas Go! Plus microSD cards never finish SD cache flush.
> -        * This has so far only been observed on cards from 11/2019, while new
> -        * cards from 2023/05 do not exhibit this behavior.
> -        */
> -       _FIXUP_EXT("SD64G", CID_MANFID_KINGSTON_SD, 0x5449, 2019, 11,
> -                  0, -1ull, SDIO_ANY_ID, SDIO_ANY_ID, add_quirk_sd,
> -                  MMC_QUIRK_BROKEN_SD_CACHE, EXT_CSD_REV_ANY),
> -
>         /*
>          * Some SD cards lockup while using CMD23 multiblock transfers.
>          */
> diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
> index 1c8148cdda50..ee37ad14e79e 100644
> --- a/drivers/mmc/core/sd.c
> +++ b/drivers/mmc/core/sd.c
> @@ -26,6 +26,7 @@
>  #include "host.h"
>  #include "bus.h"
>  #include "mmc_ops.h"
> +#include "quirks.h"
>  #include "sd.h"
>  #include "sd_ops.h"
>
> @@ -1475,6 +1476,9 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
>                         goto free_card;
>         }
>
> +       /* Apply quirks prior to card setup */
> +       mmc_fixup_device(card, mmc_sd_fixups);
> +
>         err = mmc_sd_setup_card(host, card, oldcard != NULL);
>         if (err)
>                 goto free_card;
> --
> 2.43.2
>