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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input

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Pull input fix from Dmitry Torokhov:
 "A fix for st1232 driver to properly report coordinates for 2nd and
  subsequent fingers when more than one is on the surface"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: st1232 - fix reporting multitouch coordinates
This commit is contained in:
Linus Torvalds 2019-10-25 17:31:53 -04:00
commit b4b61b224d
1 changed files with 4 additions and 2 deletions
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6
drivers/input/touchscreen/st1232.c
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@ -81,8 +81,10 @@ static int st1232_ts_read_data(struct st1232_ts_data *ts)
for (i = 0, y = 0; i < ts->chip_info->max_fingers; i++, y += 3) {
finger[i].is_valid = buf[i + y] >> 7;
if (finger[i].is_valid) {
finger[i].x = ((buf[i + y] & 0x0070) << 4) | buf[i + 1];
finger[i].y = ((buf[i + y] & 0x0007) << 8) | buf[i + 2];
finger[i].x = ((buf[i + y] & 0x0070) << 4) |
buf[i + y + 1];
finger[i].y = ((buf[i + y] & 0x0007) << 8) |
buf[i + y + 2];
/* st1232 includes a z-axis / touch strength */
if (ts->chip_info->have_z)