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    Subject[PATCH 4.19 66/85] Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
    Date
    4.19-stable review patch.  If anyone has any objections, please let me know.

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

    From: Matti Kurkela <Matti.Kurkela@iki.fi>

    commit e8b22d0a329f0fb5c7ef95406872d268f01ee3b1 upstream.

    Like Fujitsu CELSIUS H760, the H780 also has a three-button Elantech
    touchpad, but the driver needs to be told so to enable the middle touchpad
    button.

    The elantech_dmi_force_crc_enabled quirk was not necessary with the H780.

    Also document the fw_version and caps values detected for both H760 and
    H780 models.

    Signed-off-by: Matti Kurkela <Matti.Kurkela@iki.fi>
    Cc: stable@vger.kernel.org
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/input/mouse/elantech.c | 9 +++++++++
    1 file changed, 9 insertions(+)

    --- a/drivers/input/mouse/elantech.c
    +++ b/drivers/input/mouse/elantech.c
    @@ -1119,6 +1119,8 @@ static int elantech_get_resolution_v4(st
    * Asus UX31 0x361f00 20, 15, 0e clickpad
    * Asus UX32VD 0x361f02 00, 15, 0e clickpad
    * Avatar AVIU-145A2 0x361f00 ? clickpad
    + * Fujitsu CELSIUS H760 0x570f02 40, 14, 0c 3 hw buttons (**)
    + * Fujitsu CELSIUS H780 0x5d0f02 41, 16, 0d 3 hw buttons (**)
    * Fujitsu LIFEBOOK E544 0x470f00 d0, 12, 09 2 hw buttons
    * Fujitsu LIFEBOOK E546 0x470f00 50, 12, 09 2 hw buttons
    * Fujitsu LIFEBOOK E547 0x470f00 50, 12, 09 2 hw buttons
    @@ -1171,6 +1173,13 @@ static const struct dmi_system_id elante
    DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H760"),
    },
    },
    + {
    + /* Fujitsu H780 also has a middle button */
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
    + DMI_MATCH(DMI_PRODUCT_NAME, "CELSIUS H780"),
    + },
    + },
    #endif
    { }
    };

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