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    Subject[PATCH v2 4/7] Input: elantech - remove ETP_EDGE_FUZZ_V2
    Date
    Don't try to be too clever and remove ETP_EDGE_FUZZ_V2. X, Y ranges
    should be just the raw resolution of the device. Otherwise, they can
    cause underflow on the Y axis.

    Suggested-by: Éric Piel <eric.piel@tremplin-utc.net>
    Signed-off-by: JJ Ding <jj_ding@emc.com.tw>
    ---
    drivers/input/mouse/elantech.h | 15 ++++++---------
    1 files changed, 6 insertions(+), 9 deletions(-)

    diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
    index b54ea27..d9e6144 100644
    --- a/drivers/input/mouse/elantech.h
    +++ b/drivers/input/mouse/elantech.h
    @@ -66,16 +66,13 @@
    #define ETP_YMAX_V1 (384 - ETP_EDGE_FUZZ_V1)

    /*
    - * It seems the resolution for hardware version 2 doubled.
    - * Hence the X and Y ranges are doubled too.
    - * The bezel around the pad also appears to be smaller
    + * The resolution for older v2 hardware doubled.
    + * (newer v2's firmware provides command so we can query)
    */
    -#define ETP_EDGE_FUZZ_V2 8
    -
    -#define ETP_XMIN_V2 ( 0 + ETP_EDGE_FUZZ_V2)
    -#define ETP_XMAX_V2 (1152 - ETP_EDGE_FUZZ_V2)
    -#define ETP_YMIN_V2 ( 0 + ETP_EDGE_FUZZ_V2)
    -#define ETP_YMAX_V2 ( 768 - ETP_EDGE_FUZZ_V2)
    +#define ETP_XMIN_V2 0
    +#define ETP_XMAX_V2 1152
    +#define ETP_YMIN_V2 0
    +#define ETP_YMAX_V2 768

    #define ETP_PMIN_V2 0
    #define ETP_PMAX_V2 255
    --
    1.7.4.1
    --
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