linux-kernel - [PATCH 1/3] extcon: max77693: Fix bug related to MAX77693 irq when set ADC debounce time

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Message-id: <618ae4634565cbafffbf5d7fde5ee80686e7aac6.1404478227.git.d.kasatkin@samsung.com>
Date:	Fri, 04 Jul 2014 15:51:24 +0300
From:	Dmitry Kasatkin <d.kasatkin@...sung.com>
To:	cw00.choi@...sung.com
Cc:	linux-kernel@...r.kernel.org,
	Jonghwa Lee <jonghwa3.lee@...sung.com>
Subject: [PATCH 1/3] extcon: max77693: Fix bug related to MAX77693 irq when set
 ADC debounce time

From: Jonghwa Lee <jonghwa3.lee@...sung.com>

Signed-off-by: Jonghwa Lee <jonghwa3.lee@...sung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/extcon/extcon-max77693.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 2c7c3e1..0e9f734 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -288,6 +288,14 @@ static int max77693_muic_set_path(struct max77693_muic_info *info,
 	int ret = 0;
 	u8 ctrl1, ctrl2 = 0;
 
+	/* Set open state to path before changing hw path */
+	ret = max77693_update_reg(info->max77693->regmap_muic,
+		MAX77693_MUIC_REG_CTRL1, CONTROL1_SW_OPEN, COMP_SW_MASK);
+	if (ret < 0) {
+		dev_err(info->dev, "failed to update MUIC register\n");
+		return ret;
+	}
+
 	if (attached)
 		ctrl1 = val;
 	else
@@ -1259,7 +1267,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
 	}
 
 	/* Set initial path for UART */
-	 max77693_muic_set_path(info, info->path_uart, true);
+	max77693_muic_set_path(info, info->path_uart, true);
 
 	/* Check revision number of MUIC device*/
 	ret = max77693_read_reg(info->max77693->regmap_muic,
-- 
1.9.1

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