| Message ID | 20211107112236.7969-2-dariobin@libero.it (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | input: touchscreen: am335x: fix and improvements | expand |
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 83e685557a19..fd3ffdd23470 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -131,7 +131,8 @@ static void titsc_step_config(struct titsc *ts_dev) u32 stepenable; config = STEPCONFIG_MODE_HWSYNC | - STEPCONFIG_AVG_16 | ts_dev->bit_xp; + STEPCONFIG_AVG_16 | ts_dev->bit_xp | + STEPCONFIG_INM_ADCREFM; switch (ts_dev->wires) { case 4: config |= STEPCONFIG_INP(ts_dev->inp_yp) | ts_dev->bit_xn;
As reported by the STEPCONFIG[1-16] registered field descriptions of the TI reference manual, for the ADC "in single ended, SEL_INM_SWC_3_0 must be 1xxx". Unlike the Y and Z coordinates, this bit has not been set for the step configuration registers used to sample the X coordinate. Fixes: 1b8be32e691 ("Input: add support for TI Touchscreen controller") Signed-off-by: Dario Binacchi <dariobin@libero.it> --- drivers/input/touchscreen/ti_am335x_tsc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)