diff options
Diffstat (limited to 'drivers/extcon')
| -rw-r--r-- | drivers/extcon/extcon-adc-jack.c | 16 | ||||
| -rw-r--r-- | drivers/extcon/extcon-arizona.c | 7 | ||||
| -rw-r--r-- | drivers/extcon/extcon-class.c | 142 | ||||
| -rw-r--r-- | drivers/extcon/extcon-gpio.c | 7 | ||||
| -rw-r--r-- | drivers/extcon/extcon-max77693.c | 86 | ||||
| -rw-r--r-- | drivers/extcon/extcon-max8997.c | 40 |
6 files changed, 167 insertions, 131 deletions
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index 725eb5aa8d8c..eda2a1aa4adb 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -14,6 +14,7 @@ * */ +#include <linux/module.h> #include <linux/slab.h> #include <linux/device.h> #include <linux/platform_device.h> @@ -90,7 +91,7 @@ static irqreturn_t adc_jack_irq_thread(int irq, void *_data) return IRQ_HANDLED; } -static int __devinit adc_jack_probe(struct platform_device *pdev) +static int adc_jack_probe(struct platform_device *pdev) { struct adc_jack_data *data; struct adc_jack_pdata *pdata = pdev->dev.platform_data; @@ -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); @@ -175,7 +175,7 @@ out: return err; } -static int __devexit adc_jack_remove(struct platform_device *pdev) +static int adc_jack_remove(struct platform_device *pdev) { struct adc_jack_data *data = platform_get_drvdata(pdev); @@ -188,7 +188,7 @@ static int __devexit adc_jack_remove(struct platform_device *pdev) static struct platform_driver adc_jack_driver = { .probe = adc_jack_probe, - .remove = __devexit_p(adc_jack_remove), + .remove = adc_jack_remove, .driver = { .name = "adc-jack", .owner = THIS_MODULE, @@ -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"); diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index cdab9e598297..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; } @@ -337,7 +338,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data) return IRQ_HANDLED; } -static int __devinit arizona_extcon_probe(struct platform_device *pdev) +static int arizona_extcon_probe(struct platform_device *pdev) { struct arizona *arizona = dev_get_drvdata(pdev->dev.parent); struct arizona_pdata *pdata; @@ -517,7 +518,7 @@ err: return ret; } -static int __devexit arizona_extcon_remove(struct platform_device *pdev) +static int arizona_extcon_remove(struct platform_device *pdev) { struct arizona_extcon_info *info = platform_get_drvdata(pdev); struct arizona *arizona = info->arizona; @@ -544,7 +545,7 @@ static struct platform_driver arizona_extcon_driver = { .owner = THIS_MODULE, }, .probe = arizona_extcon_probe, - .remove = __devexit_p(arizona_extcon_remove), + .remove = arizona_extcon_remove, }; module_platform_driver(arizona_extcon_driver); diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 946a3188b2b7..60adc04b0561 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -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) - return -ENODEV; + 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->cable_index = extcon_find_cable_index(obj->edev, cable_name); + if (obj->cable_index < 0) + return obj->cable_index; + + obj->user_nb = nb; - obj->user_nb = nb; + obj->internal_nb.notifier_call = _call_per_cable; - 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 raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb); + return -ENODEV; + } } /** @@ -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); diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index 3cc152e690b0..1b14bfcdc176 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -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> @@ -77,7 +76,7 @@ static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf) return -EINVAL; } -static int __devinit gpio_extcon_probe(struct platform_device *pdev) +static int gpio_extcon_probe(struct platform_device *pdev) { struct gpio_extcon_platform_data *pdata = pdev->dev.platform_data; struct gpio_extcon_data *extcon_data; @@ -138,7 +137,7 @@ err: return ret; } -static int __devexit gpio_extcon_remove(struct platform_device *pdev) +static int gpio_extcon_remove(struct platform_device *pdev) { struct gpio_extcon_data *extcon_data = platform_get_drvdata(pdev); @@ -151,7 +150,7 @@ static int __devexit gpio_extcon_remove(struct platform_device *pdev) static struct platform_driver gpio_extcon_driver = { .probe = gpio_extcon_probe, - .remove = __devexit_p(gpio_extcon_remove), + .remove = gpio_extcon_remove, .driver = { .name = "extcon-gpio", .owner = THIS_MODULE, diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index e21387e2da5c..8c17b65eb74d 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"); @@ -654,24 +648,26 @@ out: return ret; } -static int __devinit max77693_muic_probe(struct platform_device *pdev) +static int 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; - 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); @@ -679,7 +675,7 @@ static int __devinit 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); @@ -690,11 +686,13 @@ static int __devinit 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, @@ -706,14 +704,13 @@ static int __devinit 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; @@ -724,7 +721,32 @@ static int __devinit 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 */ + 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*/ @@ -732,7 +754,7 @@ static int __devinit 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); @@ -744,16 +766,13 @@ static int __devinit 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; } -static int __devexit max77693_muic_remove(struct platform_device *pdev) +static int max77693_muic_remove(struct platform_device *pdev) { struct max77693_muic_info *info = platform_get_drvdata(pdev); int i; @@ -762,7 +781,6 @@ 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); return 0; } @@ -773,7 +791,7 @@ static struct platform_driver max77693_muic_driver = { .owner = THIS_MODULE, }, .probe = max77693_muic_probe, - .remove = __devexit_p(max77693_muic_remove), + .remove = max77693_muic_remove, }; module_platform_driver(max77693_muic_driver); diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index ef9090a4271d..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 @@ -271,8 +271,6 @@ out: 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, @@ -428,18 +426,18 @@ static void max8997_muic_detect_dev(struct max8997_muic_info *info) max8997_muic_handle_charger_type(info, chg_type); } -static int __devinit max8997_muic_probe(struct platform_device *pdev) +static int max8997_muic_probe(struct platform_device *pdev) { struct max8997_dev *max8997 = dev_get_drvdata(pdev->dev.parent); struct max8997_platform_data *pdata = dev_get_platdata(max8997->dev); 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; @@ -452,14 +450,16 @@ static int __devinit 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, @@ -471,7 +471,8 @@ static int __devinit 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; @@ -482,7 +483,7 @@ static int __devinit 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 */ @@ -500,17 +501,13 @@ static int __devinit 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; } -static int __devexit max8997_muic_remove(struct platform_device *pdev) +static int max8997_muic_remove(struct platform_device *pdev) { struct max8997_muic_info *info = platform_get_drvdata(pdev); int i; @@ -521,9 +518,6 @@ static int __devexit max8997_muic_remove(struct platform_device *pdev) extcon_dev_unregister(info->edev); - kfree(info->edev); - kfree(info); - return 0; } @@ -533,7 +527,7 @@ static struct platform_driver max8997_muic_driver = { .owner = THIS_MODULE, }, .probe = max8997_muic_probe, - .remove = __devexit_p(max8997_muic_remove), + .remove = max8997_muic_remove, }; module_platform_driver(max8997_muic_driver); |