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    Subject[PATCH 4.1 080/123] ata: pmp: add quirk for Marvell 4140 SATA PMP
    Date
    4.1-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    From: Lior Amsalem <alior@marvell.com>

    commit 945b47441d83d2392ac9f984e0267ad521f24268 upstream.

    This commit adds the necessary quirk to make the Marvell 4140 SATA PMP
    work properly. This PMP doesn't like SRST on port number 4 (the host
    port) so this commit marks this port as not supporting SRST.

    Signed-off-by: Lior Amsalem <alior@marvell.com>
    Reviewed-by: Nadav Haklai <nadavh@marvell.com>
    Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
    Signed-off-by: Tejun Heo <tj@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/ata/libata-pmp.c | 7 +++++++
    1 file changed, 7 insertions(+)

    --- a/drivers/ata/libata-pmp.c
    +++ b/drivers/ata/libata-pmp.c
    @@ -460,6 +460,13 @@ static void sata_pmp_quirks(struct ata_p
    ATA_LFLAG_NO_SRST |
    ATA_LFLAG_ASSUME_ATA;
    }
    + } else if (vendor == 0x11ab && devid == 0x4140) {
    + /* Marvell 4140 quirks */
    + ata_for_each_link(link, ap, EDGE) {
    + /* port 4 is for SEMB device and it doesn't like SRST */
    + if (link->pmp == 4)
    + link->flags |= ATA_LFLAG_DISABLED;
    + }
    }
    }




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