linux-kernel - [PATCH] extcon: max77693: Use max77693_update

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Date:	Tue, 02 Oct 2012 23:59:44 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	linux-kernel@...r.kernel.org
Cc:	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>
Subject: [PATCH] extcon: max77693: Use max77693_update_reg for rmw operations

This simplifies the code.

Signed-off-by: Axel Lin <axel.lin@...ics.com>
---
 drivers/extcon/extcon-max77693.c |   18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index e21387e..e0ed622 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -239,25 +239,19 @@ const char *max77693_extcon_cable[] = {
 static int max77693_muic_set_debounce_time(struct max77693_muic_info *info,
 		enum max77693_muic_adc_debounce_time time)
 {
-	int ret = 0;
-	u8 ctrl3;
+	int ret;
 
 	switch (time) {
 	case ADC_DEBOUNCE_TIME_5MS:
 	case ADC_DEBOUNCE_TIME_10MS:
 	case ADC_DEBOUNCE_TIME_25MS:
 	case ADC_DEBOUNCE_TIME_38_62MS:
-		ret = max77693_read_reg(info->max77693->regmap_muic,
-				MAX77693_MUIC_REG_CTRL3, &ctrl3);
-		ctrl3 &= ~CONTROL3_ADCDBSET_MASK;
-		ctrl3 |= (time << CONTROL3_ADCDBSET_SHIFT);
-
-		ret = max77693_write_reg(info->max77693->regmap_muic,
-				MAX77693_MUIC_REG_CTRL3, ctrl3);
-		if (ret) {
+		ret = max77693_update_reg(info->max77693->regmap_muic,
+					  MAX77693_MUIC_REG_CTRL3,
+					  time << CONTROL3_ADCDBSET_SHIFT,
+					  CONTROL3_ADCDBSET_MASK);
+		if (ret)
 			dev_err(info->dev, "failed to set ADC debounce time\n");
-			ret = -EINVAL;
-		}
 		break;
 	default:
 		dev_err(info->dev, "invalid ADC debounce time\n");
-- 
1.7.9.5



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