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    SubjectRe: [PATCH v4] mmc: Add quirk MMC_QUIRK_BROKEN_CACHE_FLUSH for Micron eMMC Q2J54A
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    Hi Ulf,

    ping you again, have you recieved this mail?

    Kind regards,
    Bean


    On Wed, 2023-10-04 at 21:07 +0200, Bean Huo wrote:
    > Hi Ulf,
    >
    > Any comments on this version?
    >
    > Kind regards,
    >
    > Beam
    >
    > On 01.10.23 9:49 PM, Bean Huo wrote:
    > > From: Bean Huo <beanhuo@micron.com>
    > >
    > > Micron MTFC4GACAJCN eMMC supports cache but requires that flush
    > > cache
    > > operation be allowed only after a write has occurred. Otherwise,
    > > the
    > > cache flush command or subsequent commands will time out.
    > >
    > > Signed-off-by: Bean Huo <beanhuo@micron.com>
    > > Signed-off-by: Rafael Beims <rafael.beims@toradex.com>
    > > Cc: stable@vger.kernel.org
    > >
    > > ---
    > > Changelog:
    > >
    > > v3--v4:
    > >       1. Add helper function for this quirk in
    > > drivers/mmc/core/card.h.
    > >       2. Set card->written_flag only for REQ_OP_WRITE.
    > > v2--v3:
    > >       1. Set card->written_flag in mmc_blk_mq_issue_rq().
    > > v1--v2:
    > >       1. Add Rafael's test-tag, and Co-developed-by.
    > >       2. Check host->card whether NULL or not in
    > > __mmc_start_request() before asserting host->card->->quirks

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