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    Subject[PATCH 4.9 074/119] Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled
    Date
    4.9-stable review patch.  If anyone has any objections, please let me know.

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

    From: Ulrik De Bie <ulrik.debie-os@e2big.org>

    commit 47eb0c8b4d9eb6368941c6a9bb443f00847a46d7 upstream.

    The Lifebook E546 and E557 touchpad were also not functioning and
    worked after running:

    echo "1" > /sys/devices/platform/i8042/serio2/crc_enabled

    Add them to the list of machines that need this workaround.

    Signed-off-by: Ulrik De Bie <ulrik.debie-os@e2big.org>
    Reviewed-by: Arjan Opmeer <arjan@opmeer.net>
    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

    ---
    drivers/input/mouse/elantech.c | 16 ++++++++++++++++
    1 file changed, 16 insertions(+)

    --- a/drivers/input/mouse/elantech.c
    +++ b/drivers/input/mouse/elantech.c
    @@ -1118,8 +1118,10 @@ static int elantech_get_resolution_v4(st
    * Asus UX32VD 0x361f02 00, 15, 0e clickpad
    * Avatar AVIU-145A2 0x361f00 ? clickpad
    * 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
    * Fujitsu LIFEBOOK E554 0x570f01 40, 14, 0c 2 hw buttons
    + * Fujitsu LIFEBOOK E557 0x570f01 40, 14, 0c 2 hw buttons
    * Fujitsu T725 0x470f01 05, 12, 09 2 hw buttons
    * Fujitsu H730 0x570f00 c0, 14, 0c 3 hw buttons (**)
    * Gigabyte U2442 0x450f01 58, 17, 0c 2 hw buttons
    @@ -1525,6 +1527,13 @@ static const struct dmi_system_id elante
    },
    },
    {
    + /* Fujitsu LIFEBOOK E546 does not work with crc_enabled == 0 */
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
    + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E546"),
    + },
    + },
    + {
    /* Fujitsu LIFEBOOK E547 does not work with crc_enabled == 0 */
    .matches = {
    DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
    @@ -1546,6 +1555,13 @@ static const struct dmi_system_id elante
    },
    },
    {
    + /* Fujitsu LIFEBOOK E557 does not work with crc_enabled == 0 */
    + .matches = {
    + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
    + DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E557"),
    + },
    + },
    + {
    /* Fujitsu LIFEBOOK U745 does not work with crc_enabled == 0 */
    .matches = {
    DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),

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