summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--drivers/extcon/extcon-arizona.c1
-rw-r--r--drivers/extcon/extcon-class.c2
-rw-r--r--drivers/extcon/extcon-max77693.c36
-rw-r--r--drivers/extcon/extcon-max8997.c28
-rw-r--r--include/linux/extcon.h50
5 files changed, 56 insertions, 61 deletions
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index f10f05d4ee9c..414aed50b1bc 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -166,6 +166,7 @@ static irqreturn_t arizona_micdet(int irq, void *data)
ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
if (ret != 0) {
dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret);
+ mutex_unlock(&info->lock);
return IRQ_NONE;
}
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index d398821097f3..60adc04b0561 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -472,7 +472,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
obj->cable_index = extcon_find_cable_index(obj->edev, cable_name);
if (obj->cable_index < 0)
- return -ENODEV;
+ return obj->cable_index;
obj->user_nb = nb;
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index b656dfa401a6..8c17b65eb74d 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -657,17 +657,17 @@ static int max77693_muic_probe(struct platform_device *pdev)
int ret, i;
u8 id;
- info = kzalloc(sizeof(struct max77693_muic_info), GFP_KERNEL);
+ info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_muic_info),
+ GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "failed to allocate memory\n");
- ret = -ENOMEM;
- goto err_kfree;
+ return -ENOMEM;
}
info->dev = &pdev->dev;
info->max77693 = max77693;
- if (info->max77693->regmap_muic)
+ if (info->max77693->regmap_muic) {
dev_dbg(&pdev->dev, "allocate register map\n");
- else {
+ } else {
info->max77693->regmap_muic = devm_regmap_init_i2c(
info->max77693->muic,
&max77693_muic_regmap_config);
@@ -675,7 +675,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
ret = PTR_ERR(info->max77693->regmap_muic);
dev_err(max77693->dev,
"failed to allocate register map: %d\n", ret);
- goto err_regmap;
+ return ret;
}
}
platform_set_drvdata(pdev, info);
@@ -686,11 +686,13 @@ static int max77693_muic_probe(struct platform_device *pdev)
/* Support irq domain for MAX77693 MUIC device */
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
struct max77693_muic_irq *muic_irq = &muic_irqs[i];
- int virq = 0;
+ unsigned int virq = 0;
virq = irq_create_mapping(max77693->irq_domain, muic_irq->irq);
- if (!virq)
+ if (!virq) {
+ ret = -EINVAL;
goto err_irq;
+ }
muic_irq->virq = virq;
ret = request_threaded_irq(virq, NULL,
@@ -702,14 +704,13 @@ static int max77693_muic_probe(struct platform_device *pdev)
" error :%d)\n",
muic_irq->irq, ret);
- for (i = i - 1; i >= 0; i--)
- free_irq(muic_irq->virq, info);
goto err_irq;
}
}
/* Initialize extcon device */
- info->edev = kzalloc(sizeof(struct extcon_dev), GFP_KERNEL);
+ info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev),
+ GFP_KERNEL);
if (!info->edev) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
ret = -ENOMEM;
@@ -720,7 +721,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
ret = extcon_dev_register(info->edev, NULL);
if (ret) {
dev_err(&pdev->dev, "failed to register extcon device\n");
- goto err_extcon;
+ goto err_irq;
}
/* Initialize MUIC register by using platform data */
@@ -753,7 +754,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
MAX77693_MUIC_REG_ID, &id);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read revision number\n");
- goto err_extcon;
+ goto err_irq;
}
dev_info(info->dev, "device ID : 0x%x\n", id);
@@ -765,12 +766,9 @@ static int max77693_muic_probe(struct platform_device *pdev)
return ret;
-err_extcon:
- kfree(info->edev);
err_irq:
-err_regmap:
- kfree(info);
-err_kfree:
+ while (--i >= 0)
+ free_irq(muic_irqs[i].virq, info);
return ret;
}
@@ -783,8 +781,6 @@ static int max77693_muic_remove(struct platform_device *pdev)
free_irq(muic_irqs[i].virq, info);
cancel_work_sync(&info->irq_work);
extcon_dev_unregister(info->edev);
- kfree(info->edev);
- kfree(info);
return 0;
}
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index bad76f51161b..93009fe6ef05 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -1,7 +1,7 @@
/*
* extcon-max8997.c - MAX8997 extcon driver to support MAX8997 MUIC
*
- * Copyright (C) 2012 Samsung Electrnoics
+ * Copyright (C) 2012 Samsung Electronics
* Donggeun Kim <dg77.kim@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -433,11 +433,11 @@ static int max8997_muic_probe(struct platform_device *pdev)
struct max8997_muic_info *info;
int ret, i;
- info = kzalloc(sizeof(struct max8997_muic_info), GFP_KERNEL);
+ info = devm_kzalloc(&pdev->dev, sizeof(struct max8997_muic_info),
+ GFP_KERNEL);
if (!info) {
dev_err(&pdev->dev, "failed to allocate memory\n");
- ret = -ENOMEM;
- goto err_kfree;
+ return -ENOMEM;
}
info->dev = &pdev->dev;
@@ -450,14 +450,16 @@ static int max8997_muic_probe(struct platform_device *pdev)
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
struct max8997_muic_irq *muic_irq = &muic_irqs[i];
- int virq = 0;
+ unsigned int virq = 0;
virq = irq_create_mapping(max8997->irq_domain, muic_irq->irq);
- if (!virq)
+ if (!virq) {
+ ret = -EINVAL;
goto err_irq;
+ }
muic_irq->virq = virq;
- ret = request_threaded_irq(virq, NULL,max8997_muic_irq_handler,
+ ret = request_threaded_irq(virq, NULL, max8997_muic_irq_handler,
0, muic_irq->name, info);
if (ret) {
dev_err(&pdev->dev,
@@ -469,7 +471,8 @@ static int max8997_muic_probe(struct platform_device *pdev)
}
/* External connector */
- info->edev = kzalloc(sizeof(struct extcon_dev), GFP_KERNEL);
+ info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev),
+ GFP_KERNEL);
if (!info->edev) {
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
ret = -ENOMEM;
@@ -480,7 +483,7 @@ static int max8997_muic_probe(struct platform_device *pdev)
ret = extcon_dev_register(info->edev, NULL);
if (ret) {
dev_err(&pdev->dev, "failed to register extcon device\n");
- goto err_extcon;
+ goto err_irq;
}
/* Initialize registers according to platform data */
@@ -498,13 +501,9 @@ static int max8997_muic_probe(struct platform_device *pdev)
return ret;
-err_extcon:
- kfree(info->edev);
err_irq:
while (--i >= 0)
free_irq(muic_irqs[i].virq, info);
- kfree(info);
-err_kfree:
return ret;
}
@@ -519,9 +518,6 @@ static int max8997_muic_remove(struct platform_device *pdev)
extcon_dev_unregister(info->edev);
- kfree(info->edev);
- kfree(info);
-
return 0;
}
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 2c26c14cd710..fcb51c88319f 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -23,7 +23,9 @@
#ifndef __LINUX_EXTCON_H__
#define __LINUX_EXTCON_H__
+#include <linux/device.h>
#include <linux/notifier.h>
+#include <linux/sysfs.h>
#define SUPPORTED_CABLE_MAX 32
#define CABLE_NAME_MAX 30
@@ -74,12 +76,12 @@ struct extcon_cable;
/**
* struct extcon_dev - An extcon device represents one external connector.
- * @name The name of this extcon device. Parent device name is used
+ * @name: The name of this extcon device. Parent device name is used
* if NULL.
- * @supported_cable Array of supported cable names ending with NULL.
+ * @supported_cable: Array of supported cable names ending with NULL.
* If supported_cable is NULL, cable name related APIs
* are disabled.
- * @mutually_exclusive Array of mutually exclusive set of cables that cannot
+ * @mutually_exclusive: Array of mutually exclusive set of cables that cannot
* be attached simultaneously. The array should be
* ending with NULL or be NULL (no mutually exclusive
* cables). For example, if it is { 0x7, 0x30, 0}, then,
@@ -87,21 +89,21 @@ struct extcon_cable;
* be attached simulataneously. {0x7, 0} is equivalent to
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
* can be no simultaneous connections.
- * @print_name An optional callback to override the method to print the
+ * @print_name: An optional callback to override the method to print the
* name of the extcon device.
- * @print_state An optional callback to override the method to print the
+ * @print_state: An optional callback to override the method to print the
* status of the extcon device.
- * @dev Device of this extcon. Do not provide at register-time.
- * @state Attach/detach state of this extcon. Do not provide at
+ * @dev: Device of this extcon. Do not provide at register-time.
+ * @state: Attach/detach state of this extcon. Do not provide at
* register-time
- * @nh Notifier for the state change events from this extcon
- * @entry To support list of extcon devices so that users can search
+ * @nh: Notifier for the state change events from this extcon
+ * @entry: To support list of extcon devices so that users can search
* for extcon devices based on the extcon name.
- * @lock
- * @max_supported Internal value to store the number of cables.
- * @extcon_dev_type Device_type struct to provide attribute_groups
+ * @lock:
+ * @max_supported: Internal value to store the number of cables.
+ * @extcon_dev_type: Device_type struct to provide attribute_groups
* customized for each extcon device.
- * @cables Sysfs subdirectories. Each represents one cable.
+ * @cables: Sysfs subdirectories. Each represents one cable.
*
* In most cases, users only need to provide "User initializing data" of
* this struct when registering an extcon. In some exceptional cases,
@@ -137,12 +139,12 @@ struct extcon_dev {
/**
* struct extcon_cable - An internal data for each cable of extcon device.
- * @edev The extcon device
- * @cable_index Index of this cable in the edev
- * @attr_g Attribute group for the cable
- * @attr_name "name" sysfs entry
- * @attr_state "state" sysfs entry
- * @attrs Array pointing to attr_name and attr_state for attr_g
+ * @edev: The extcon device
+ * @cable_index: Index of this cable in the edev
+ * @attr_g: Attribute group for the cable
+ * @attr_name: "name" sysfs entry
+ * @attr_state: "state" sysfs entry
+ * @attrs: Array pointing to attr_name and attr_state for attr_g
*/
struct extcon_cable {
struct extcon_dev *edev;
@@ -158,11 +160,11 @@ struct extcon_cable {
/**
* struct extcon_specific_cable_nb - An internal data for
* extcon_register_interest().
- * @internal_nb a notifier block bridging extcon notifier and cable notifier.
- * @user_nb user provided notifier block for events from a specific cable.
- * @cable_index the target cable.
- * @edev the target extcon device.
- * @previous_value the saved previous event value.
+ * @internal_nb: a notifier block bridging extcon notifier and cable notifier.
+ * @user_nb: user provided notifier block for events from a specific cable.
+ * @cable_index: the target cable.
+ * @edev: the target extcon device.
+ * @previous_value: the saved previous event value.
*/
struct extcon_specific_cable_nb {
struct notifier_block internal_nb;
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-01 09:33:32 +0300