OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

input: ti_am33x_tsc: remove unwanted fifo flush 

When touchscreen and ADC are used together, this
unwanted fifo flush leads to loss of ADC data.

Signed-off-by: Patil, Rachna <rachna@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
This commit is contained in:
Patil, Rachna 2013-01-24 03:45:07 +00:00 committed by Sebastian Andrzej Siewior
parent bb76dc09dd
commit af9c2fe374
1 changed files with 0 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/input/touchscreen/ti_am335x_tsc.c
View File

@ -252,8 +252,6 @@ static irqreturn_t titsc_irq(int irq, void *dev)
unsigned int x = 0, y = 0;
unsigned int z1, z2, z;
unsigned int fsm;
unsigned int fifo1count, fifo0count;
int i;
status = titsc_readl(ts_dev, REG_IRQSTATUS);
if (status & IRQENB_FIFO0THRES) {
@ -262,14 +260,6 @@ static irqreturn_t titsc_irq(int irq, void *dev)
z1 = titsc_readl(ts_dev, REG_FIFO0) & 0xfff;
z2 = titsc_readl(ts_dev, REG_FIFO1) & 0xfff;
fifo1count = titsc_readl(ts_dev, REG_FIFO1CNT);
for (i = 0; i < fifo1count; i++)
titsc_readl(ts_dev, REG_FIFO1);
fifo0count = titsc_readl(ts_dev, REG_FIFO0CNT);
for (i = 0; i < fifo0count; i++)
titsc_readl(ts_dev, REG_FIFO0);
if (ts_dev->pen_down && z1 != 0 && z2 != 0) {
/*
* Calculate pressure using formula