Input: goodix - fix touch coordinates on Cube I15-TC

The touchscreen on the Cube I15-TC don't match the default display,
with 0,0 touches being reported when touching at the top-right of
the screen.

Add a quirk to invert the x coordinate.

Reported-and-tested-by: Arkadiy <arkan49@yandex.ru>
Signed-off-by: Sergei A. Trusov <sergei.a.trusov@ya.ru>
Reviewed-by: Bastien Nocera <hadess@hadess.net>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/touchscreen/goodix.c b/drivers/input/touchscreen/goodix.c
index 0403102e807e1ee96825dc9ca1b73a955717c5a4..37b35ab97beb214fbb58208f1db19727387fab81 100644 (file)
--- a/drivers/input/touchscreen/goodix.c
+++ b/drivers/input/touchscreen/goodix.c
@@ -168,6 +168,22 @@ static const struct dmi_system_id nine_bytes_report[] = {
        {}
 };
 
+/*
+ * Those tablets have their x coordinate inverted
+ */
+static const struct dmi_system_id inverted_x_screen[] = {
+#if defined(CONFIG_DMI) && defined(CONFIG_X86)
+       {
+               .ident = "Cube I15-TC",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Cube"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "I15-TC")
+               },
+       },
+#endif
+       {}
+};
+
 /**
  * goodix_i2c_read - read data from a register of the i2c slave device.
  *
@@ -780,6 +796,12 @@ static int goodix_configure_dev(struct goodix_ts_data *ts)
                        "Non-standard 9-bytes report format quirk\n");
        }
 
+       if (dmi_check_system(inverted_x_screen)) {
+               ts->prop.invert_x = true;
+               dev_dbg(&ts->client->dev,
+                       "Applying 'inverted x screen' quirk\n");
+       }
+
        error = input_mt_init_slots(ts->input_dev, ts->max_touch_num,
                                    INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
        if (error) {