[PATCH RFC V2 2/3] Input: goodix - use "inverted_[xy]" flags instead of "rotated_screen"

Karsten Merker
2015-10-09T17:57:44Z

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 <merker@debian.org>
---
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