From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751906Ab3ARKr2 (ORCPT ); Fri, 18 Jan 2013 05:47:28 -0500 Received: from comal.ext.ti.com ([198.47.26.152]:51452 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751300Ab3ARKrX (ORCPT ); Fri, 18 Jan 2013 05:47:23 -0500 From: "Patil, Rachna" To: , , , , , , CC: Samuel Ortiz , Dmitry Torokhov , Dmitry Torokhov , Rob Herring , Jonathan Cameron , Tony Lindgren , Benit Cousson , Grant Likely , Rob Landley , Russell King , "Patil, Rachna" Subject: [PATCH v3 3/8] input: touchscreen: ti_tsc: remove unwanted fifo flush Date: Fri, 18 Jan 2013 16:18:06 +0530 Message-ID: <0110c0cb0cbd3c31dfd3f098f207cd5b765d247e.1358502134.git.rachna@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@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 --- 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