From mboxrd@z Thu Jan 1 00:00:00 1970 From: rachna@ti.com (Patil, Rachna) Date: Thu, 24 Jan 2013 09:15:07 +0530 Subject: [PATCH v4 3/8] input: touchscreen: ti_tsc: remove unwanted fifo flush In-Reply-To: <1358999112-31192-1-git-send-email-rachna@ti.com> References: <1358999112-31192-1-git-send-email-rachna@ti.com> Message-ID: <1358999112-31192-4-git-send-email-rachna@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: "Patil, Rachna" When touchscreen and ADC are used together, this unwanted fifo flush leads to loss of ADC data. Signed-off-by: Patil, Rachna --- drivers/input/touchscreen/ti_am335x_tsc.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c index 0c460f9..064d2b2 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -308,8 +308,6 @@ 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) { @@ -318,14 +316,6 @@ 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 -- 1.7.9.5