From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: [PATCH 05/22] input/ti_am33x_tsc: remove unwanted fifo flush Date: Tue, 11 Jun 2013 13:30:51 +0200 Message-ID: <1370950268-7224-6-git-send-email-bigeasy@linutronix.de> References: <1370950268-7224-1-git-send-email-bigeasy@linutronix.de> Return-path: In-Reply-To: <1370950268-7224-1-git-send-email-bigeasy@linutronix.de> Sender: linux-kernel-owner@vger.kernel.org To: Lee Jones , Samuel Ortiz Cc: =?UTF-8?q?Beno=C3=AEt=20Cousson?= , Tony Lindgren , Jonathan Cameron , Dmitry Torokhov , Felipe Balbi , linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-iio@vger.kernel.org, linux-input@vger.kernel.org, "Patil, Rachna" , Sebastian Andrzej Siewior List-Id: linux-input@vger.kernel.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 Signed-off-by: Felipe Balbi Signed-off-by: Sebastian Andrzej Siewior --- 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 56c6220..b2f8a46 100644 --- a/drivers/input/touchscreen/ti_am335x_tsc.c +++ b/drivers/input/touchscreen/ti_am335x_tsc.c @@ -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 -- 1.7.10.4