linux-kernel - [PATCH RESEND 4/8] input: TSC: ti_tscadc: Remove definition of End Of Interrupt register

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Date:	Tue, 16 Oct 2012 12:55:41 +0530
From:	"Patil, Rachna" <rachna@...com>
To:	<linux-kernel@...r.kernel.org>, <linux-input@...r.kernel.org>,
	<linux-iio@...r.kernel.org>
CC:	Samuel Ortiz <sameo@...ux.intel.com>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Dmitry Torokhov <dtor@...l.ru>,
	Jonathan Cameron <jic23@....ac.uk>,
	"Patil, Rachna" <rachna@...com>
Subject: [PATCH RESEND 4/8] input: TSC: ti_tscadc: Remove definition of End Of Interrupt register

The touchscreen IP uses level sensitive interrupts rather
than edge sensitive interrupts and therefore the is no need
to use the EOI register to have the module re-strobe the
interrupt line if there pending interrupts exist.

Signed-off-by: Patil, Rachna <rachna@...com>
---
 drivers/input/touchscreen/ti_tscadc.c |    3 ---
 1 files changed, 0 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/ti_tscadc.c b/drivers/input/touchscreen/ti_tscadc.c
index 2cc19b0..ec0a442 100644
--- a/drivers/input/touchscreen/ti_tscadc.c
+++ b/drivers/input/touchscreen/ti_tscadc.c
@@ -27,7 +27,6 @@
 #include <linux/input/ti_tscadc.h>
 #include <linux/delay.h>
 
-#define REG_IRQEOI		0x020
 #define REG_RAWIRQSTATUS	0x024
 #define REG_IRQSTATUS		0x028
 #define REG_IRQENABLE		0x02C
@@ -330,8 +329,6 @@ static irqreturn_t tscadc_irq(int irq, void *dev)
 	}
 
 	tscadc_writel(ts_dev, REG_IRQSTATUS, irqclr);
-	/* check pending interrupts */
-	tscadc_writel(ts_dev, REG_IRQEOI, 0x0);
 
 	tscadc_writel(ts_dev, REG_SE, STPENB_STEPENB);
 	return IRQ_HANDLED;
-- 
1.7.0.4

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