linux-kernel - [PATCH v2 3/3] Input: omap-keypad: Clear pending interrupts on open

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Message-ID: <1374595798-15492-4-git-send-email-illia.smyrnov@ti.com>
Date:	Tue, 23 Jul 2013 19:09:58 +0300
From:	Illia Smyrnov <illia.smyrnov@...com>
To:	Dmitry Torokhov <dmitry.torokhov@...il.com>
CC:	<balbi@...com>, <linux-input@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>
Subject: [PATCH v2 3/3] Input: omap-keypad: Clear pending interrupts on open

Clear pending interrupts when open keypad.

Signed-off-by: Illia Smyrnov <illia.smyrnov@...com>
---
 drivers/input/keyboard/omap4-keypad.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index b876a0d..62abc3e 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -185,13 +185,14 @@ static int omap4_keypad_open(struct input_dev *input)
 			(OMAP4_VAL_PVT << OMAP4_DEF_CTRL_PTV_SHIFT));
 	kbd_writel(keypad_data, OMAP4_KBD_DEBOUNCINGTIME,
 			OMAP4_VAL_DEBOUNCINGTIME);
-	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
-			OMAP4_VAL_IRQDISABLE);
 	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQENABLE,
 			OMAP4_DEF_IRQENABLE_EVENTEN |
 				OMAP4_DEF_IRQENABLE_LONGKEY);
 	kbd_writel(keypad_data, OMAP4_KBD_WAKEUPENABLE,
 			OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA);
+	/* clear pending interrupts */
+	kbd_write_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS,
+			 kbd_read_irqreg(keypad_data, OMAP4_KBD_IRQSTATUS));
 
 	enable_irq(keypad_data->irq);
 
-- 
1.7.0.4

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