linux-kernel - [PATCHv2 7/9] extcon: arizona: Use devm_extcon_dev_allocate for extcon

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Message-id: <1398081742-24277-8-git-send-email-cw00.choi@samsung.com>
Date:	Mon, 21 Apr 2014 21:02:20 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	linux-kernel@...r.kernel.org
Cc:	myungjoo.ham@...sung.com, balbi@...com, gg@...mlogic.co.uk,
	kishon@...com, ckeepax@...nsource.wolfsonmicro.com,
	broonie@...nel.org, k.kozlowski@...sung.com,
	kyungmin.park@...sung.com, Chanwoo Choi <cw00.choi@...sung.com>,
	patches@...nsource.wolfsonmicro.com
Subject: [PATCHv2 7/9] extcon: arizona: Use devm_extcon_dev_allocate for
 extcon_dev

This patch use devm_extcon_dev_allocate() to simplify the memory control
of extcon device.

Cc: Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>
Cc: Mark Brown <broonie@...nel.org>
Cc: patches@...nsource.wolfsonmicro.com
Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
---
 drivers/extcon/extcon-arizona.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index f63fa6f..78931f1 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -91,7 +91,7 @@ struct arizona_extcon_info {
 
 	int hpdet_ip;
 
-	struct extcon_dev edev;
+	struct extcon_dev *edev;
 };
 
 static const struct arizona_micd_config micd_default_modes[] = {
@@ -546,7 +546,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
 	}
 
 	/* If the cable was removed while measuring ignore the result */
-	ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
+	ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
 	if (ret < 0) {
 		dev_err(arizona->dev, "Failed to check cable state: %d\n",
 			ret);
@@ -581,7 +581,7 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
 	else
 		report = ARIZONA_CABLE_HEADPHONE;
 
-	ret = extcon_set_cable_state_(&info->edev, report, true);
+	ret = extcon_set_cable_state_(info->edev, report, true);
 	if (ret != 0)
 		dev_err(arizona->dev, "Failed to report HP/line: %d\n",
 			ret);
@@ -664,7 +664,7 @@ err:
 			   ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
 
 	/* Just report headphone */
-	ret = extcon_update_state(&info->edev,
+	ret = extcon_update_state(info->edev,
 				  1 << ARIZONA_CABLE_HEADPHONE,
 				  1 << ARIZONA_CABLE_HEADPHONE);
 	if (ret != 0)
@@ -723,7 +723,7 @@ err:
 			   ARIZONA_ACCDET_MODE_MASK, ARIZONA_ACCDET_MODE_MIC);
 
 	/* Just report headphone */
-	ret = extcon_update_state(&info->edev,
+	ret = extcon_update_state(info->edev,
 				  1 << ARIZONA_CABLE_HEADPHONE,
 				  1 << ARIZONA_CABLE_HEADPHONE);
 	if (ret != 0)
@@ -764,7 +764,7 @@ static void arizona_micd_detect(struct work_struct *work)
 	mutex_lock(&info->lock);
 
 	/* If the cable was removed while measuring ignore the result */
-	ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
+	ret = extcon_get_cable_state_(info->edev, ARIZONA_CABLE_MECHANICAL);
 	if (ret < 0) {
 		dev_err(arizona->dev, "Failed to check cable state: %d\n",
 				ret);
@@ -812,7 +812,7 @@ static void arizona_micd_detect(struct work_struct *work)
 	if (info->detecting && (val & ARIZONA_MICD_LVL_8)) {
 		arizona_identify_headphone(info);
 
-		ret = extcon_update_state(&info->edev,
+		ret = extcon_update_state(info->edev,
 					  1 << ARIZONA_CABLE_MICROPHONE,
 					  1 << ARIZONA_CABLE_MICROPHONE);
 
@@ -999,7 +999,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 
 	if (info->last_jackdet == present) {
 		dev_dbg(arizona->dev, "Detected jack\n");
-		ret = extcon_set_cable_state_(&info->edev,
+		ret = extcon_set_cable_state_(info->edev,
 					      ARIZONA_CABLE_MECHANICAL, true);
 
 		if (ret != 0)
@@ -1038,7 +1038,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 					 info->micd_ranges[i].key, 0);
 		input_sync(info->input);
 
-		ret = extcon_update_state(&info->edev, 0xffffffff, 0);
+		ret = extcon_update_state(info->edev, 0xffffffff, 0);
 		if (ret != 0)
 			dev_err(arizona->dev, "Removal report failed: %d\n",
 				ret);
@@ -1150,11 +1150,16 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 		break;
 	}
 
-	info->edev.name = "Headset Jack";
-	info->edev.dev.parent = arizona->dev;
-	info->edev.supported_cable = arizona_cable;
+	info->edev = devm_extcon_dev_allocate(&pdev->dev, arizona_cable);
+	if (!info->edev) {
+		dev_err(&pdev->dev, "failed to allocate extcon device\n");
+		return -ENOMEM;
+	}
+	info->edev->name = "Headset Jack";
+	info->edev->dev.parent = arizona->dev;
+
 
-	ret = devm_extcon_dev_register(&pdev->dev, &info->edev);
+	ret = devm_extcon_dev_register(&pdev->dev, info->edev);
 	if (ret < 0) {
 		dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
 			ret);
-- 
1.8.0

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