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| author |   Caleb Connolly <caleb@connolly.tech> | 2021-03-07 15:12:22 -0800 |
|---|---|---|
| committer |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2021-03-07 15:14:25 -0800 |
| commit | 30b3f68715595dee7fe4d9bd91a2252c3becdf0a (patch) | |
| tree | d1adeb853c8c92e7ae28a2826437b40c1ac592af /drivers/input/joystick | |
| parent | Input: st1232 - fix NORMAL vs. IDLE state handling (diff) | |
| download | linux-dev-30b3f68715595dee7fe4d9bd91a2252c3becdf0a.tar.xz linux-dev-30b3f68715595dee7fe4d9bd91a2252c3becdf0a.zip | |
Input: s6sy761 - fix coordinate read bit shift
The touch coordinate register contains the following:
byte 3 byte 2 byte 1
+--------+--------+ +-----------------+ +-----------------+
| | | | | | |
| X[3:0] | Y[3:0] | | Y[11:4] | | X[11:4] |
| | | | | | |
+--------+--------+ +-----------------+ +-----------------+
Bytes 2 and 1 need to be shifted left by 4 bits, the least significant
nibble of each is stored in byte 3. Currently they are only
being shifted by 3 causing the reported coordinates to be incorrect.
This matches downstream examples, and has been confirmed on my
device (OnePlus 7 Pro).
Fixes: 0145a7141e59 ("Input: add support for the Samsung S6SY761 touchscreen")
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
Reviewed-by: Andi Shyti <andi@etezian.org>
Link: https://lore.kernel.org/r/20210305185710.225168-1-caleb@connolly.tech
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/joystick')
0 files changed, 0 insertions, 0 deletions