> -----Original Message-----
> From: Karsten Merker [mailto:mer...@debian.org]
> Sent: 09 October, 2015 20:56
> To: Bastien Nocera; Dmitry Torokhov; Tirdea, Irina; Aleksei Mamlin;
> linux-input@vger.kernel.org; Ian Campbell
> Cc: devicet...@vger.kernel.org; linux-ker...@vger.kernel.org; Chen-Yu Tsai;
> Karsten Merker
> Subject: [PATCH RFC V2 2/3] Input: goodix - use "inverted_[xy]" flags instead
> of "rotated_screen"
>
> The goodix touchscreen driver uses a "rotated_screen" flag for
> systems on which the touchscreen is mounted rotated by 180
> degrees with respect to the display. With the addition of
> support for the dt properties "touchscreen-inverted-x" and
> "touchscreen-inverted-y", a separate "rotated_screen" flag
> is not necessary any more. This patch replaces it by setting
> the inverted_x and inverted_y flags instead.
>
> Signed-off-by: Karsten Merker <mer...@debian.org>
> ---
Reviewed-by: Irina Tirdea <irina.tir...@intel.com>
> drivers/input/touchscreen/goodix.c | 12 ++++--------
> 1 file changed, 4 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/input/touchscreen/goodix.c
> b/drivers/input/touchscreen/goodix.c
> index a05bdad..d910b27 100644
> --- a/drivers/input/touchscreen/goodix.c
> +++ b/drivers/input/touchscreen/goodix.c
> @@ -40,7 +40,6 @@ struct goodix_ts_data {
> int abs_y_max;
> unsigned int max_touch_num;
> unsigned int int_trigger_type;
> - bool rotated_screen;
> int cfg_len;
> struct gpio_desc *gpiod_int;
> struct gpio_desc *gpiod_rst;
> @@ -270,11 +269,6 @@ static void goodix_ts_report_touch(struct goodix_ts_data
> *ts, u8 *coor_data)
> int input_y = get_unaligned_le16(&coor_data[3]);
> int input_w = get_unaligned_le16(&coor_data[5]);
>
> - if (ts->rotated_screen) {
> - input_x = ts->abs_x_max - input_x;
> - input_y = ts->abs_y_max - input_y;
> - }
> -
> /* Inversions have to happen before axis swapping */
> if (ts->inverted_x)
> input_x = ts->abs_x_max - input_x;
> @@ -701,10 +695,12 @@ static void goodix_read_config(struct goodix_ts_data
> *ts)
> ts->max_touch_num = GOODIX_MAX_CONTACTS;
> }
>
> - ts->rotated_screen = dmi_check_system(rotated_screen);
> - if (ts->rotated_screen)
> + if (dmi_check_system(rotated_screen)) {
> + ts->inverted_x = true;
> + ts->inverted_y = true;
> dev_dbg(&ts->client->dev,
> "Applying '180 degrees rotated screen' quirk\n");
> + }
> }
>
> /**
> --
> 2.1.4
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