On Thu, 2018-01-25 at 20:08 +0100, Marcin Niestroj wrote:
> Touchscreen coordinates are 0-indexed, so report touchscreen range
> as (0:size-1).
>
> Signed-off-by: Marcin Niestroj <m.niestroj@xxxxxxxxxxxxxxxx>
> Fixes: ca96ea86eed4 ("Input: add driver for the Goodix touchpanel")
Reviewed-by: Bastien Nocera <hadess@xxxxxxxxxx>
> ---
> Changes v2 -> v3: fix commit description (suggested by Bastien)
>
> Changes v1 -> v2: patch splitted off from patch 3 (suggested by
> Bastien)
>
> drivers/input/touchscreen/goodix.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/input/touchscreen/goodix.c
> b/drivers/input/touchscreen/goodix.c
> index 69d0b8cbc71f..7896097ca69b 100644
> --- a/drivers/input/touchscreen/goodix.c
> +++ b/drivers/input/touchscreen/goodix.c
> @@ -587,8 +587,8 @@ static void goodix_read_config(struct
> goodix_ts_data *ts)
> dev_warn(&ts->client->dev,
> "Error reading config (%d), using
> defaults\n",
> error);
> - ts->abs_x_max = GOODIX_MAX_WIDTH;
> - ts->abs_y_max = GOODIX_MAX_HEIGHT;
> + ts->abs_x_max = GOODIX_MAX_WIDTH - 1;
> + ts->abs_y_max = GOODIX_MAX_HEIGHT - 1;
> if (ts->swapped_x_y)
> swap(ts->abs_x_max, ts->abs_y_max);
> ts->int_trigger_type = GOODIX_INT_TRIGGER;
> @@ -596,8 +596,8 @@ static void goodix_read_config(struct
> goodix_ts_data *ts)
> return;
> }
>
> - ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC]);
> - ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC +
> 2]);
> + ts->abs_x_max = get_unaligned_le16(&config[RESOLUTION_LOC])
> - 1;
> + ts->abs_y_max = get_unaligned_le16(&config[RESOLUTION_LOC +
> 2]) - 1;
> if (ts->swapped_x_y)
> swap(ts->abs_x_max, ts->abs_y_max);
> ts->int_trigger_type = config[TRIGGER_LOC] & 0x03;
> @@ -605,8 +605,8 @@ static void goodix_read_config(struct
> goodix_ts_data *ts)
> if (!ts->abs_x_max || !ts->abs_y_max || !ts->max_touch_num)
> {
> dev_err(&ts->client->dev,
> "Invalid config, using defaults\n");
> - ts->abs_x_max = GOODIX_MAX_WIDTH;
> - ts->abs_y_max = GOODIX_MAX_HEIGHT;
> + ts->abs_x_max = GOODIX_MAX_WIDTH - 1;
> + ts->abs_y_max = GOODIX_MAX_HEIGHT - 1;
> if (ts->swapped_x_y)
> swap(ts->abs_x_max, ts->abs_y_max);
> ts->max_touch_num = GOODIX_MAX_CONTACTS;
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