Commit af9c2fe3 authored by Patil, Rachna's avatar Patil, Rachna Committed by Sebastian Andrzej Siewior
Browse files

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: default avatarPatil, Rachna <rachna@ti.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
parent bb76dc09

drivers/input/touchscreen/ti_am335x_tsc.c

+0 −10
Original line number Diff line number Diff line
@@ -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