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Input: ti_am335x_tsc - fix incorrect step config for 5 wire touchscreen

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Step config setting for 5 wire touchscreen is incorrect for Y coordinates.
It was broken while we moved to DT. If you look close at the offending
commit bb76dc09dd ("input: ti_am33x_tsc: Order of TSC wires, made
configurable"), the change was:

- STEPCONFIG_XNP | STEPCONFIG_YPN;
+ ts_dev->bit_xn | ts_dev->bit_yp;

while bit_xn = STEPCONFIG_XNN and bit_yp = STEPCONFIG_YNN. Not quite the
same.

Fixes: bb76dc09dd ("input: ti_am33x_tsc: Order of TSC wires, made configurable")
Signed-off-by: Jeff Lance <[email protected]>
[[email protected]: Rebase to v4.14-rc1]
Signed-off-by: Vignesh R <[email protected]>
Reviewed-by: Michael Nazzareno Trimarchi <[email protected]>
Signed-off-by: Dmitry Torokhov <[email protected]>
This commit is contained in:
Jeff Lance authored and Dmitry Torokhov committed 2017-10-18 17:54:12 -07:00
1 parent 2b30297d48
commit cf5dd48907
1 file changed
+1 -1
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drivers/input/touchscreen/ti_am335x_tsc.c
+1 -1
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@@ -161,7 +161,7 @@ static void titsc_step_config(struct titsc *ts_dev)
break;
case 5:
config |= ts_dev->bit_xp | STEPCONFIG_INP_AN4 |
ts_dev->bit_xn | ts_dev->bit_yp;
STEPCONFIG_XNP | STEPCONFIG_YPN;
break;
case 8:
config |= ts_dev->bit_yp | STEPCONFIG_INP(ts_dev->inp_xp);