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Extcon fixes for Linux 3.7 based on 3.7 RC2 

- MyungJoo
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Merge tag 'fixes-for-3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mzx/extcon into char-misc-linus

Extcon fixes for Linux 3.7 based on 3.7 RC2

- MyungJoo
This commit is contained in:
Greg Kroah-Hartman 2012-10-23 19:38:44 -07:00
parent 6f0c0580b7 4f2de3bf17
commit 1b2077345c
7 changed files with 140 additions and 84 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/extcon/extcon-adc-jack.c
View File

@ -14,6 +14,7 @@
*
*/
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/platform_device.h>
@ -161,13 +162,12 @@ static int __devinit adc_jack_probe(struct platform_device *pdev)
err = request_any_context_irq(data->irq, adc_jack_irq_thread,
pdata->irq_flags, pdata->name, data);
if (err) {
if (err < 0) {
dev_err(&pdev->dev, "error: irq %d\n", data->irq);
err = -EINVAL;
goto err_irq;
}
goto out;
return 0;
err_irq:
extcon_dev_unregister(&data->edev);
@ -196,3 +196,7 @@ static struct platform_driver adc_jack_driver = {
};
module_platform_driver(adc_jack_driver);
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
MODULE_DESCRIPTION("ADC Jack extcon driver");
MODULE_LICENSE("GPL v2");

146
drivers/extcon/extcon-class.c
View File

@ -41,7 +41,7 @@
* every single port-type of the following cable names. Please choose cable
* names that are actually used in your extcon device.
*/
const char *extcon_cable_name[] = {
const char extcon_cable_name[][CABLE_NAME_MAX + 1] = {
[EXTCON_USB] = "USB",
[EXTCON_USB_HOST] = "USB-Host",
[EXTCON_TA] = "TA",
@ -62,8 +62,6 @@ const char *extcon_cable_name[] = {
[EXTCON_VIDEO_IN] = "Video-in",
[EXTCON_VIDEO_OUT] = "Video-out",
[EXTCON_MECHANICAL] = "Mechanical",
NULL,
};
static struct class *extcon_class;
@ -91,17 +89,13 @@ static int check_mutually_exclusive(struct extcon_dev *edev, u32 new_state)
return 0;
for (i = 0; edev->mutually_exclusive[i]; i++) {
int count = 0, j;
int weight;
u32 correspondants = new_state & edev->mutually_exclusive[i];
u32 exp = 1;
for (j = 0; j < 32; j++) {
if (exp & correspondants)
count++;
if (count > 1)
return i + 1;
exp <<= 1;
}
/* calculate the total number of bits set */
weight = hweight32(correspondants);
if (weight > 1)
return i + 1;
}
return 0;
@ -362,7 +356,7 @@ int extcon_get_cable_state(struct extcon_dev *edev, const char *cable_name)
EXPORT_SYMBOL_GPL(extcon_get_cable_state);
/**
* extcon_get_cable_state_() - Set the status of a specific cable.
* extcon_set_cable_state_() - Set the status of a specific cable.
* @edev: the extcon device that has the cable.
* @index: cable index that can be retrieved by extcon_find_cable_index().
* @cable_state: the new cable status. The default semantics is
@ -382,7 +376,7 @@ int extcon_set_cable_state_(struct extcon_dev *edev,
EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
/**
* extcon_get_cable_state() - Set the status of a specific cable.
* extcon_set_cable_state() - Set the status of a specific cable.
* @edev: the extcon device that has the cable.
* @cable_name: cable name.
* @cable_state: the new cable status. The default semantics is
@ -447,6 +441,8 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val,
* extcon device.
* @obj: an empty extcon_specific_cable_nb object to be returned.
* @extcon_name: the name of extcon device.
* if NULL, extcon_register_interest will register
* every cable with the target cable_name given.
* @cable_name: the target cable name.
* @nb: the notifier block to get notified.
*
@ -466,22 +462,44 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
const char *extcon_name, const char *cable_name,
struct notifier_block *nb)
{
if (!obj || !extcon_name || !cable_name || !nb)
if (!obj || !cable_name || !nb)
return -EINVAL;
obj->edev = extcon_get_extcon_dev(extcon_name);
if (!obj->edev)
if (extcon_name) {
obj->edev = extcon_get_extcon_dev(extcon_name);
if (!obj->edev)
return -ENODEV;
obj->cable_index = extcon_find_cable_index(obj->edev, cable_name);
if (obj->cable_index < 0)
return -ENODEV;
obj->user_nb = nb;
obj->internal_nb.notifier_call = _call_per_cable;
return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb);
} else {
struct class_dev_iter iter;
struct extcon_dev *extd;
struct device *dev;
if (!extcon_class)
return -ENODEV;
class_dev_iter_init(&iter, extcon_class, NULL, NULL);
while ((dev = class_dev_iter_next(&iter))) {
extd = (struct extcon_dev *)dev_get_drvdata(dev);
if (extcon_find_cable_index(extd, cable_name) < 0)
continue;
class_dev_iter_exit(&iter);
return extcon_register_interest(obj, extd->name,
cable_name, nb);
}
return -ENODEV;
obj->cable_index = extcon_find_cable_index(obj->edev, cable_name);
if (obj->cable_index < 0)
return -ENODEV;
obj->user_nb = nb;
obj->internal_nb.notifier_call = _call_per_cable;
return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb);
}
}
/**
@ -551,43 +569,9 @@ static int create_extcon_class(void)
return 0;
}
static void extcon_cleanup(struct extcon_dev *edev, bool skip)
{
mutex_lock(&extcon_dev_list_lock);
list_del(&edev->entry);
mutex_unlock(&extcon_dev_list_lock);
if (!skip && get_device(edev->dev)) {
int index;
if (edev->mutually_exclusive && edev->max_supported) {
for (index = 0; edev->mutually_exclusive[index];
index++)
kfree(edev->d_attrs_muex[index].attr.name);
kfree(edev->d_attrs_muex);
kfree(edev->attrs_muex);
}
for (index = 0; index < edev->max_supported; index++)
kfree(edev->cables[index].attr_g.name);
if (edev->max_supported) {
kfree(edev->extcon_dev_type.groups);
kfree(edev->cables);
}
device_unregister(edev->dev);
put_device(edev->dev);
}
kfree(edev->dev);
}
static void extcon_dev_release(struct device *dev)
{
struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
extcon_cleanup(edev, true);
kfree(dev);
}
static const char *muex_name = "mutually_exclusive";
@ -813,7 +797,40 @@ EXPORT_SYMBOL_GPL(extcon_dev_register);
*/
void extcon_dev_unregister(struct extcon_dev *edev)
{
extcon_cleanup(edev, false);
int index;
mutex_lock(&extcon_dev_list_lock);
list_del(&edev->entry);
mutex_unlock(&extcon_dev_list_lock);
if (IS_ERR_OR_NULL(get_device(edev->dev))) {
dev_err(edev->dev, "Failed to unregister extcon_dev (%s)\n",
dev_name(edev->dev));
return;
}
if (edev->mutually_exclusive && edev->max_supported) {
for (index = 0; edev->mutually_exclusive[index];
index++)
kfree(edev->d_attrs_muex[index].attr.name);
kfree(edev->d_attrs_muex);
kfree(edev->attrs_muex);
}
for (index = 0; index < edev->max_supported; index++)
kfree(edev->cables[index].attr_g.name);
if (edev->max_supported) {
kfree(edev->extcon_dev_type.groups);
kfree(edev->cables);
}
#if defined(CONFIG_ANDROID)
if (switch_class)
class_compat_remove_link(switch_class, edev->dev, NULL);
#endif
device_unregister(edev->dev);
put_device(edev->dev);
}
EXPORT_SYMBOL_GPL(extcon_dev_unregister);
@ -825,6 +842,9 @@ module_init(extcon_class_init);
static void __exit extcon_class_exit(void)
{
#if defined(CONFIG_ANDROID)
class_compat_unregister(switch_class);
#endif
class_destroy(extcon_class);
}
module_exit(extcon_class_exit);

1
drivers/extcon/extcon-gpio.c
View File

@ -26,7 +26,6 @@
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/extcon.h>
#include <linux/workqueue.h>
#include <linux/gpio.h>
#include <linux/extcon.h>

46
drivers/extcon/extcon-max77693.c
View File

@ -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");
@ -657,6 +651,8 @@ static int max77693_muic_detect_accessory(struct max77693_muic_info *info)
static int __devinit max77693_muic_probe(struct platform_device *pdev)
{
struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent);
struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev);
struct max77693_muic_platform_data *muic_pdata = pdata->muic_data;
struct max77693_muic_info *info;
int ret, i;
u8 id;
@ -727,6 +723,31 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
goto err_extcon;
}
/* Initialize MUIC register by using platform data */
for (i = 0 ; i < muic_pdata->num_init_data ; i++) {
enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR;
max77693_write_reg(info->max77693->regmap_muic,
muic_pdata->init_data[i].addr,
muic_pdata->init_data[i].data);
switch (muic_pdata->init_data[i].addr) {
case MAX77693_MUIC_REG_INTMASK1:
irq_src = MUIC_INT1;
break;
case MAX77693_MUIC_REG_INTMASK2:
irq_src = MUIC_INT2;
break;
case MAX77693_MUIC_REG_INTMASK3:
irq_src = MUIC_INT3;
break;
}
if (irq_src < MAX77693_IRQ_GROUP_NR)
info->max77693->irq_masks_cur[irq_src]
= muic_pdata->init_data[i].data;
}
/* Check revision number of MUIC device*/
ret = max77693_read_reg(info->max77693->regmap_muic,
MAX77693_MUIC_REG_ID, &id);
@ -762,6 +783,7 @@ static int __devexit 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;

6
drivers/extcon/extcon-max8997.c
View File

@ -271,8 +271,6 @@ static int max8997_muic_handle_adc(struct max8997_muic_info *info, int adc)
static int max8997_muic_handle_charger_type_detach(
struct max8997_muic_info *info)
{
int ret = 0;
switch (info->pre_charger_type) {
case MAX8997_CHARGER_TYPE_USB:
extcon_set_cable_state(info->edev, "USB", false);
@ -290,11 +288,11 @@ static int max8997_muic_handle_charger_type_detach(
extcon_set_cable_state(info->edev, "Fast-charger", false);
break;
default:
ret = -EINVAL;
return -EINVAL;
break;
}
return ret;
return 0;
}
static int max8997_muic_handle_charger_type(struct max8997_muic_info *info,

2
include/linux/extcon.h
View File

@ -68,7 +68,7 @@ enum extcon_cable_name {
EXTCON_VIDEO_OUT,
EXTCON_MECHANICAL,
};
extern const char *extcon_cable_name[];
extern const char extcon_cable_name[][CABLE_NAME_MAX + 1];
struct extcon_cable;

13
include/linux/mfd/max77693.h
View File

@ -30,7 +30,20 @@
#ifndef __LINUX_MFD_MAX77693_H
#define __LINUX_MFD_MAX77693_H
struct max77693_reg_data {
u8 addr;
u8 data;
};
struct max77693_muic_platform_data {
struct max77693_reg_data *init_data;
int num_init_data;
};
struct max77693_platform_data {
int wakeup;
/* muic data */
struct max77693_muic_platform_data *muic_data;
};
#endif /* __LINUX_MFD_MAX77693_H */