diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-20 09:44:38 +0900 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-20 09:44:38 +0900 |
commit | 6a57bad6e78ba0355f0f6df8cca1f7df42b58bfd (patch) | |
tree | 9d6a7cafc6b0bed30df94e2822605615c37a1f8d /drivers | |
parent | 4f0638100fe305837d583aed75c51c53047a2524 (diff) | |
parent | 3f79a3fb5f41e8f2229e5bf8aa725eaa79686f14 (diff) |
Merge tag 'extcon-next-for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next
Chanwoo writes:
Update extcon for v3.16
This patchset add resource-managed functions to automatically control the memory
and unregistration operation of extcon. Also, This series support new MAX77836
extcon device driver on existing MAX14577 device because existed a little
difference between MAX77836 and MAX14577. Finally, Fix minor issue of extcon
driver.
Detailed description for patchset:
1. Add resource-managed functions
- Add resource-managed functions to automatically free the memory of extcon
structure and to control unregistration behavior as following. This new devm_*
functions applied all of extcon drivers in drivers/extcon/.
: devm_extcon_dev_register/unregister()
: devm_extcon_dev_allocate/free()
: extcon_dev_allocate/free() for devm_extcon_dev_allocate/free()
2. Add new MAX77836 extcon device
- Support MAX77836 device on existing MAX14577 device driver using
different compatible string. This patchset has dependency on MFD/
Regulator/Extcon. So, Lee Jones(MFD Maintainer) created Immutable
branch between MFD and Extcon due for v3.16 merge-window and then
I merged this patchset from MFD git repo[1] to Extcon git repo.
: [1] git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
(branch: ib-mfd-extcon-3.16)
3. Fix minor issue of extcon driver
- extcon-palmas driver
: Fix issue of extcon device name for probe
- extcon-max14577
: Fix probe failure about handling wrong return value.
: Properly Handle return value of regmap_irq_get_virq function.
- extcon-max8997/max77693 driver
: Fix NULL pointer exception on missing pdata
4. Code clean for extcon driver
- extcon-max8997/max77693
: Use power efficient workqueue for delayed cable detection
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/extcon/Kconfig | 4 | ||||
-rw-r--r-- | drivers/extcon/extcon-adc-jack.c | 49 | ||||
-rw-r--r-- | drivers/extcon/extcon-arizona.c | 40 | ||||
-rw-r--r-- | drivers/extcon/extcon-class.c | 151 | ||||
-rw-r--r-- | drivers/extcon/extcon-gpio.c | 37 | ||||
-rw-r--r-- | drivers/extcon/extcon-max14577.c | 199 | ||||
-rw-r--r-- | drivers/extcon/extcon-max77693.c | 23 | ||||
-rw-r--r-- | drivers/extcon/extcon-max8997.c | 16 | ||||
-rw-r--r-- | drivers/extcon/extcon-palmas.c | 41 | ||||
-rw-r--r-- | drivers/mfd/Kconfig | 6 | ||||
-rw-r--r-- | drivers/mfd/max14577.c | 315 | ||||
-rw-r--r-- | drivers/regulator/Kconfig | 7 | ||||
-rw-r--r-- | drivers/regulator/max14577.c | 277 |
13 files changed, 907 insertions, 258 deletions
diff --git a/drivers/extcon/Kconfig b/drivers/extcon/Kconfig index be56e8ac95e6..aebde489c291 100644 --- a/drivers/extcon/Kconfig +++ b/drivers/extcon/Kconfig @@ -28,13 +28,13 @@ config EXTCON_ADC_JACK Say Y here to enable extcon device driver based on ADC values. config EXTCON_MAX14577 - tristate "MAX14577 EXTCON Support" + tristate "MAX14577/77836 EXTCON Support" depends on MFD_MAX14577 select IRQ_DOMAIN select REGMAP_I2C help If you say yes here you get support for the MUIC device of - Maxim MAX14577 PMIC. The MAX14577 MUIC is a USB port accessory + Maxim MAX14577/77836. The MAX14577/77836 MUIC is a USB port accessory detector and switch. config EXTCON_MAX77693 diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c index e23f1c2e5053..e18f95be3733 100644 --- a/drivers/extcon/extcon-adc-jack.c +++ b/drivers/extcon/extcon-adc-jack.c @@ -39,7 +39,7 @@ * @chan: iio channel being queried. */ struct adc_jack_data { - struct extcon_dev edev; + struct extcon_dev *edev; const char **cable_names; int num_cables; @@ -64,7 +64,7 @@ static void adc_jack_handler(struct work_struct *work) ret = iio_read_channel_raw(data->chan, &adc_val); if (ret < 0) { - dev_err(&data->edev.dev, "read channel() error: %d\n", ret); + dev_err(&data->edev->dev, "read channel() error: %d\n", ret); return; } @@ -80,7 +80,7 @@ static void adc_jack_handler(struct work_struct *work) } /* if no def has met, it means state = 0 (no cables attached) */ - extcon_set_state(&data->edev, state); + extcon_set_state(data->edev, state); } static irqreturn_t adc_jack_irq_thread(int irq, void *_data) @@ -102,33 +102,33 @@ static int adc_jack_probe(struct platform_device *pdev) if (!data) return -ENOMEM; - data->edev.name = pdata->name; - if (!pdata->cable_names) { - err = -EINVAL; dev_err(&pdev->dev, "error: cable_names not defined.\n"); - goto out; + return -EINVAL; } - data->edev.dev.parent = &pdev->dev; - data->edev.supported_cable = pdata->cable_names; + data->edev = devm_extcon_dev_allocate(&pdev->dev, pdata->cable_names); + if (IS_ERR(data->edev)) { + dev_err(&pdev->dev, "failed to allocate extcon device\n"); + return -ENOMEM; + } + data->edev->dev.parent = &pdev->dev; + data->edev->name = pdata->name; /* Check the length of array and set num_cables */ - for (i = 0; data->edev.supported_cable[i]; i++) + for (i = 0; data->edev->supported_cable[i]; i++) ; if (i == 0 || i > SUPPORTED_CABLE_MAX) { - err = -EINVAL; dev_err(&pdev->dev, "error: pdata->cable_names size = %d\n", i - 1); - goto out; + return -EINVAL; } data->num_cables = i; if (!pdata->adc_conditions || !pdata->adc_conditions[0].state) { - err = -EINVAL; dev_err(&pdev->dev, "error: adc_conditions not defined.\n"); - goto out; + return -EINVAL; } data->adc_conditions = pdata->adc_conditions; @@ -138,10 +138,8 @@ static int adc_jack_probe(struct platform_device *pdev) data->num_conditions = i; data->chan = iio_channel_get(&pdev->dev, pdata->consumer_channel); - if (IS_ERR(data->chan)) { - err = PTR_ERR(data->chan); - goto out; - } + if (IS_ERR(data->chan)) + return PTR_ERR(data->chan); data->handling_delay = msecs_to_jiffies(pdata->handling_delay_ms); @@ -149,15 +147,14 @@ static int adc_jack_probe(struct platform_device *pdev) platform_set_drvdata(pdev, data); - err = extcon_dev_register(&data->edev); + err = devm_extcon_dev_register(&pdev->dev, data->edev); if (err) - goto out; + return err; data->irq = platform_get_irq(pdev, 0); if (!data->irq) { dev_err(&pdev->dev, "platform_get_irq failed\n"); - err = -ENODEV; - goto err_irq; + return -ENODEV; } err = request_any_context_irq(data->irq, adc_jack_irq_thread, @@ -165,15 +162,10 @@ static int adc_jack_probe(struct platform_device *pdev) if (err < 0) { dev_err(&pdev->dev, "error: irq %d\n", data->irq); - goto err_irq; + return err; } return 0; - -err_irq: - extcon_dev_unregister(&data->edev); -out: - return err; } static int adc_jack_remove(struct platform_device *pdev) @@ -182,7 +174,6 @@ static int adc_jack_remove(struct platform_device *pdev) free_irq(data->irq, data); cancel_work_sync(&data->handler.work); - extcon_dev_unregister(&data->edev); return 0; } diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c index 98a14f6143a7..6c84e3d12043 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); @@ -1105,15 +1105,14 @@ static int arizona_extcon_probe(struct platform_device *pdev) info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); if (!info) { dev_err(&pdev->dev, "Failed to allocate memory\n"); - ret = -ENOMEM; - goto err; + return -ENOMEM; } info->micvdd = devm_regulator_get(arizona->dev, "MICVDD"); if (IS_ERR(info->micvdd)) { ret = PTR_ERR(info->micvdd); dev_err(arizona->dev, "Failed to get MICVDD: %d\n", ret); - goto err; + return ret; } mutex_init(&info->lock); @@ -1151,15 +1150,19 @@ 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 (IS_ERR(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 = extcon_dev_register(&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); - goto err; + return ret; } info->input = devm_input_allocate_device(&pdev->dev); @@ -1410,8 +1413,6 @@ err_rise: err_input: err_register: pm_runtime_disable(&pdev->dev); - extcon_dev_unregister(&info->edev); -err: return ret; } @@ -1445,7 +1446,6 @@ static int arizona_extcon_remove(struct platform_device *pdev) regmap_update_bits(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, ARIZONA_JD1_ENA, 0); arizona_clk32k_disable(arizona); - extcon_dev_unregister(&info->edev); return 0; } diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c index 7ab21aa6eaa1..18d42c0e4581 100644 --- a/drivers/extcon/extcon-class.c +++ b/drivers/extcon/extcon-class.c @@ -565,6 +565,100 @@ static void dummy_sysfs_dev_release(struct device *dev) { } +/* + * extcon_dev_allocate() - Allocate the memory of extcon device. + * @supported_cable: Array of supported cable names ending with NULL. + * If supported_cable is NULL, cable name related APIs + * are disabled. + * + * This function allocates the memory for extcon device without allocating + * memory in each extcon provider driver and initialize default setting for + * extcon device. + * + * Return the pointer of extcon device if success or ERR_PTR(err) if fail + */ +struct extcon_dev *extcon_dev_allocate(const char **supported_cable) +{ + struct extcon_dev *edev; + + edev = kzalloc(sizeof(*edev), GFP_KERNEL); + if (!edev) + return ERR_PTR(-ENOMEM); + + edev->max_supported = 0; + edev->supported_cable = supported_cable; + + return edev; +} + +/* + * extcon_dev_free() - Free the memory of extcon device. + * @edev: the extcon device to free + */ +void extcon_dev_free(struct extcon_dev *edev) +{ + kfree(edev); +} +EXPORT_SYMBOL_GPL(extcon_dev_free); + +static int devm_extcon_dev_match(struct device *dev, void *res, void *data) +{ + struct extcon_dev **r = res; + + if (WARN_ON(!r || !*r)) + return 0; + + return *r == data; +} + +static void devm_extcon_dev_release(struct device *dev, void *res) +{ + extcon_dev_free(*(struct extcon_dev **)res); +} + +/** + * devm_extcon_dev_allocate - Allocate managed extcon device + * @dev: device owning the extcon device being created + * @supported_cable: Array of supported cable names ending with NULL. + * If supported_cable is NULL, cable name related APIs + * are disabled. + * + * This function manages automatically the memory of extcon device using device + * resource management and simplify the control of freeing the memory of extcon + * device. + * + * Returns the pointer memory of allocated extcon_dev if success + * or ERR_PTR(err) if fail + */ +struct extcon_dev *devm_extcon_dev_allocate(struct device *dev, + const char **supported_cable) +{ + struct extcon_dev **ptr, *edev; + + ptr = devres_alloc(devm_extcon_dev_release, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return ERR_PTR(-ENOMEM); + + edev = extcon_dev_allocate(supported_cable); + if (IS_ERR(edev)) { + devres_free(ptr); + return edev; + } + + *ptr = edev; + devres_add(dev, ptr); + + return edev; +} +EXPORT_SYMBOL_GPL(devm_extcon_dev_allocate); + +void devm_extcon_dev_free(struct device *dev, struct extcon_dev *edev) +{ + WARN_ON(devres_release(dev, devm_extcon_dev_release, + devm_extcon_dev_match, edev)); +} +EXPORT_SYMBOL_GPL(devm_extcon_dev_free); + /** * extcon_dev_register() - Register a new extcon device * @edev : the new extcon device (should be allocated before calling) @@ -819,6 +913,63 @@ void extcon_dev_unregister(struct extcon_dev *edev) } EXPORT_SYMBOL_GPL(extcon_dev_unregister); +static void devm_extcon_dev_unreg(struct device *dev, void *res) +{ + extcon_dev_unregister(*(struct extcon_dev **)res); +} + +/** + * devm_extcon_dev_register() - Resource-managed extcon_dev_register() + * @dev: device to allocate extcon device + * @edev: the new extcon device to register + * + * Managed extcon_dev_register() function. If extcon device is attached with + * this function, that extcon device is automatically unregistered on driver + * detach. Internally this function calls extcon_dev_register() function. + * To get more information, refer that function. + * + * If extcon device is registered with this function and the device needs to be + * unregistered separately, devm_extcon_dev_unregister() should be used. + * + * Returns 0 if success or negaive error number if failure. + */ +int devm_extcon_dev_register(struct device *dev, struct extcon_dev *edev) +{ + struct extcon_dev **ptr; + int ret; + + ptr = devres_alloc(devm_extcon_dev_unreg, sizeof(*ptr), GFP_KERNEL); + if (!ptr) + return -ENOMEM; + + ret = extcon_dev_register(edev); + if (ret) { + devres_free(ptr); + return ret; + } + + *ptr = edev; + devres_add(dev, ptr); + + return 0; +} +EXPORT_SYMBOL_GPL(devm_extcon_dev_register); + +/** + * devm_extcon_dev_unregister() - Resource-managed extcon_dev_unregister() + * @dev: device the extcon belongs to + * @edev: the extcon device to unregister + * + * Unregister extcon device that is registered with devm_extcon_dev_register() + * function. + */ +void devm_extcon_dev_unregister(struct device *dev, struct extcon_dev *edev) +{ + WARN_ON(devres_release(dev, devm_extcon_dev_unreg, + devm_extcon_dev_match, edev)); +} +EXPORT_SYMBOL_GPL(devm_extcon_dev_unregister); + #ifdef CONFIG_OF /* * extcon_get_edev_by_phandle - Get the extcon device from devicetree diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c index 13d522255d81..645b28356819 100644 --- a/drivers/extcon/extcon-gpio.c +++ b/drivers/extcon/extcon-gpio.c @@ -32,7 +32,7 @@ #include <linux/extcon/extcon-gpio.h> struct gpio_extcon_data { - struct extcon_dev edev; + struct extcon_dev *edev; unsigned gpio; bool gpio_active_low; const char *state_on; @@ -53,7 +53,7 @@ static void gpio_extcon_work(struct work_struct *work) state = gpio_get_value(data->gpio); if (data->gpio_active_low) state = !state; - extcon_set_state(&data->edev, state); + extcon_set_state(data->edev, state); } static irqreturn_t gpio_irq_handler(int irq, void *dev_id) @@ -67,9 +67,10 @@ static irqreturn_t gpio_irq_handler(int irq, void *dev_id) static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf) { - struct gpio_extcon_data *extcon_data = - container_of(edev, struct gpio_extcon_data, edev); + struct device *dev = edev->dev.parent; + struct gpio_extcon_data *extcon_data = dev_get_drvdata(dev); const char *state; + if (extcon_get_state(edev)) state = extcon_data->state_on; else @@ -98,15 +99,21 @@ static int gpio_extcon_probe(struct platform_device *pdev) if (!extcon_data) return -ENOMEM; - extcon_data->edev.name = pdata->name; - extcon_data->edev.dev.parent = &pdev->dev; + extcon_data->edev = devm_extcon_dev_allocate(&pdev->dev, NULL); + if (IS_ERR(extcon_data->edev)) { + dev_err(&pdev->dev, "failed to allocate extcon device\n"); + return -ENOMEM; + } + extcon_data->edev->name = pdata->name; + extcon_data->edev->dev.parent = &pdev->dev; + extcon_data->gpio = pdata->gpio; extcon_data->gpio_active_low = pdata->gpio_active_low; extcon_data->state_on = pdata->state_on; extcon_data->state_off = pdata->state_off; extcon_data->check_on_resume = pdata->check_on_resume; if (pdata->state_on && pdata->state_off) - extcon_data->edev.print_state = extcon_gpio_print_state; + extcon_data->edev->print_state = extcon_gpio_print_state; ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN, pdev->name); @@ -121,34 +128,27 @@ static int gpio_extcon_probe(struct platform_device *pdev) msecs_to_jiffies(pdata->debounce); } - ret = extcon_dev_register(&extcon_data->edev); + ret = devm_extcon_dev_register(&pdev->dev, extcon_data->edev); if (ret < 0) return ret; INIT_DELAYED_WORK(&extcon_data->work, gpio_extcon_work); extcon_data->irq = gpio_to_irq(extcon_data->gpio); - if (extcon_data->irq < 0) { - ret = extcon_data->irq; - goto err; - } + if (extcon_data->irq < 0) + return extcon_data->irq; ret = request_any_context_irq(extcon_data->irq, gpio_irq_handler, pdata->irq_flags, pdev->name, extcon_data); if (ret < 0) - goto err; + return ret; platform_set_drvdata(pdev, extcon_data); /* Perform initial detection */ gpio_extcon_work(&extcon_data->work.work); return 0; - -err: - extcon_dev_unregister(&extcon_data->edev); - - return ret; } static int gpio_extcon_remove(struct platform_device *pdev) @@ -157,7 +157,6 @@ static int gpio_extcon_remove(struct platform_device *pdev) cancel_delayed_work_sync(&extcon_data->work); free_irq(extcon_data->irq, extcon_data); - extcon_dev_unregister(&extcon_data->edev); return 0; } diff --git a/drivers/extcon/extcon-max14577.c b/drivers/extcon/extcon-max14577.c index 3846941801b8..d49e891b5675 100644 --- a/drivers/extcon/extcon-max14577.c +++ b/drivers/extcon/extcon-max14577.c @@ -1,8 +1,9 @@ /* - * extcon-max14577.c - MAX14577 extcon driver to support MAX14577 MUIC + * extcon-max14577.c - MAX14577/77836 extcon driver to support MUIC * - * Copyright (C) 2013 Samsung Electrnoics + * Copyright (C) 2013,2014 Samsung Electrnoics * Chanwoo Choi <cw00.choi@samsung.com> + * Krzysztof Kozlowski <k.kozlowski@samsung.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -24,7 +25,6 @@ #include <linux/mfd/max14577-private.h> #include <linux/extcon.h> -#define DEV_NAME "max14577-muic" #define DELAY_MS_DEFAULT 17000 /* unit: millisecond */ enum max14577_muic_adc_debounce_time { @@ -40,6 +40,42 @@ enum max14577_muic_status { MAX14577_MUIC_STATUS_END, }; +/** + * struct max14577_muic_irq + * @irq: the index of irq list of MUIC device. + * @name: the name of irq. + * @virq: the virtual irq to use irq domain + */ +struct max14577_muic_irq { + unsigned int irq; + const char *name; + unsigned int virq; +}; + +static struct max14577_muic_irq max14577_muic_irqs[] = { + { MAX14577_IRQ_INT1_ADC, "muic-ADC" }, + { MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" }, + { MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" }, + { MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" }, + { MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" }, + { MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" }, + { MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" }, + { MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" }, +}; + +static struct max14577_muic_irq max77836_muic_irqs[] = { + { MAX14577_IRQ_INT1_ADC, "muic-ADC" }, + { MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" }, + { MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" }, + { MAX77836_IRQ_INT1_ADC1K, "muic-ADC1K" }, + { MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" }, + { MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" }, + { MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" }, + { MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" }, + { MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" }, + { MAX77836_IRQ_INT2_VIDRM, "muic-VIDRM" }, +}; + struct max14577_muic_info { struct device *dev; struct max14577 *max14577; @@ -48,6 +84,8 @@ struct max14577_muic_info { int prev_chg_type; u8 status[MAX14577_MUIC_STATUS_END]; + struct max14577_muic_irq *muic_irqs; + unsigned int muic_irqs_num; bool irq_adc; bool irq_chg; struct work_struct irq_work; @@ -74,29 +112,6 @@ enum max14577_muic_cable_group { MAX14577_CABLE_GROUP_CHG, }; -/** - * struct max14577_muic_irq - * @irq: the index of irq list of MUIC device. - * @name: the name of irq. - * @virq: the virtual irq to use irq domain - */ -struct max14577_muic_irq { - unsigned int irq; - const char *name; - unsigned int virq; -}; - -static struct max14577_muic_irq muic_irqs[] = { - { MAX14577_IRQ_INT1_ADC, "muic-ADC" }, - { MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" }, - { MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" }, - { MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" }, - { MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" }, - { MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" }, - { MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" }, - { MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" }, -}; - /* Define supported accessory type */ enum max14577_muic_acc_type { MAX14577_MUIC_ADC_GROUND = 0x0, @@ -528,21 +543,12 @@ static void max14577_muic_irq_work(struct work_struct *work) return; } -static irqreturn_t max14577_muic_irq_handler(int irq, void *data) +/* + * Sets irq_adc or irq_chg in max14577_muic_info and returns 1. + * Returns 0 if irq_type does not match registered IRQ for this device type. + */ +static int max14577_parse_irq(struct max14577_muic_info *info, int irq_type) { - struct max14577_muic_info *info = data; - int i, irq_type = -1; - - /* - * We may be called multiple times for different nested IRQ-s. - * Including changes in INT1_ADC and INT2_CGHTYP at once. - * However we only need to know whether it was ADC, charger - * or both interrupts so decode IRQ and turn on proper flags. - */ - for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) - if (irq == muic_irqs[i].virq) - irq_type = muic_irqs[i].irq; - switch (irq_type) { case MAX14577_IRQ_INT1_ADC: case MAX14577_IRQ_INT1_ADCLOW: @@ -550,7 +556,7 @@ static irqreturn_t max14577_muic_irq_handler(int irq, void *data) /* Handle all of accessory except for type of charger accessory */ info->irq_adc = true; - break; + return 1; case MAX14577_IRQ_INT2_CHGTYP: case MAX14577_IRQ_INT2_CHGDETRUN: case MAX14577_IRQ_INT2_DCDTMR: @@ -558,8 +564,62 @@ static irqreturn_t max14577_muic_irq_handler(int irq, void *data) case MAX14577_IRQ_INT2_VBVOLT: /* Handle charger accessory */ info->irq_chg = true; + return 1; + default: + return 0; + } +} + +/* + * Sets irq_adc or irq_chg in max14577_muic_info and returns 1. + * Returns 0 if irq_type does not match registered IRQ for this device type. + */ +static int max77836_parse_irq(struct max14577_muic_info *info, int irq_type) +{ + /* First check common max14577 interrupts */ + if (max14577_parse_irq(info, irq_type)) + return 1; + + switch (irq_type) { + case MAX77836_IRQ_INT1_ADC1K: + info->irq_adc = true; + return 1; + case MAX77836_IRQ_INT2_VIDRM: + /* Handle charger accessory */ + info->irq_chg = true; + return 1; + default: + return 0; + } +} + +static irqreturn_t max14577_muic_irq_handler(int irq, void *data) +{ + struct max14577_muic_info *info = data; + int i, irq_type = -1; + bool irq_parsed; + + /* + * We may be called multiple times for different nested IRQ-s. + * Including changes in INT1_ADC and INT2_CGHTYP at once. + * However we only need to know whether it was ADC, charger + * or both interrupts so decode IRQ and turn on proper flags. + */ + for (i = 0; i < info->muic_irqs_num; i++) + if (irq == info->muic_irqs[i].virq) + irq_type = info->muic_irqs[i].irq; + + switch (info->max14577->dev_type) { + case MAXIM_DEVICE_TYPE_MAX77836: + irq_parsed = max77836_parse_irq(info, irq_type); break; + case MAXIM_DEVICE_TYPE_MAX14577: default: + irq_parsed = max14577_parse_irq(info, irq_type); + break; + } + + if (!irq_parsed) { dev_err(info->dev, "muic interrupt: irq %d occurred, skipped\n", irq_type); return IRQ_HANDLED; @@ -644,13 +704,24 @@ static int max14577_muic_probe(struct platform_device *pdev) INIT_WORK(&info->irq_work, max14577_muic_irq_work); + switch (max14577->dev_type) { + case MAXIM_DEVICE_TYPE_MAX77836: + info->muic_irqs = max77836_muic_irqs; + info->muic_irqs_num = ARRAY_SIZE(max77836_muic_irqs); + break; + case MAXIM_DEVICE_TYPE_MAX14577: + default: + info->muic_irqs = max14577_muic_irqs; + info->muic_irqs_num = ARRAY_SIZE(max14577_muic_irqs); + } + /* Support irq domain for max14577 MUIC device */ - for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) { - struct max14577_muic_irq *muic_irq = &muic_irqs[i]; + for (i = 0; i < info->muic_irqs_num; i++) { + struct max14577_muic_irq *muic_irq = &info->muic_irqs[i]; unsigned int virq = 0; virq = regmap_irq_get_virq(max14577->irq_data, muic_irq->irq); - if (!virq) + if (virq <= 0) return -EINVAL; muic_irq->virq = virq; @@ -668,14 +739,16 @@ static int max14577_muic_probe(struct platform_device *pdev) } /* Initialize extcon device */ - info->edev = devm_kzalloc(&pdev->dev, sizeof(*info->edev), GFP_KERNEL); - if (!info->edev) { + info->edev = devm_extcon_dev_allocate(&pdev->dev, + max14577_extcon_cable); + if (IS_ERR(info->edev)) { dev_err(&pdev->dev, "failed to allocate memory for extcon\n"); return -ENOMEM; } - info->edev->name = DEV_NAME; - info->edev->supported_cable = max14577_extcon_cable; - ret = extcon_dev_register(info->edev); + + info->edev->name = dev_name(&pdev->dev); + + ret = devm_extcon_dev_register(&pdev->dev, info->edev); if (ret) { dev_err(&pdev->dev, "failed to register extcon device\n"); return ret; @@ -694,7 +767,7 @@ static int max14577_muic_probe(struct platform_device *pdev) MAX14577_REG_DEVICEID, &id); if (ret < 0) { dev_err(&pdev->dev, "failed to read revision number\n"); - goto err_extcon; + return ret; } dev_info(info->dev, "device ID : 0x%x\n", id); @@ -710,19 +783,10 @@ static int max14577_muic_probe(struct platform_device *pdev) * driver should notify cable state to upper layer. */ INIT_DELAYED_WORK(&info->wq_detcable, max14577_muic_detect_cable_wq); - ret = queue_delayed_work(system_power_efficient_wq, &info->wq_detcable, + queue_delayed_work(system_power_efficient_wq, &info->wq_detcable, delay_jiffies); - if (ret < 0) { - dev_err(&pdev->dev, - "failed to schedule delayed work for cable detect\n"); - goto err_extcon; - } return ret; - -err_extcon: - extcon_dev_unregister(info->edev); - return ret; } static int max14577_muic_remove(struct platform_device *pdev) @@ -730,23 +794,30 @@ static int max14577_muic_remove(struct platform_device *pdev) struct max14577_muic_info *info = platform_get_drvdata(pdev); cancel_work_sync(&info->irq_work); - extcon_dev_unregister(info->edev); return 0; } +static const struct platform_device_id max14577_muic_id[] = { + { "max14577-muic", MAXIM_DEVICE_TYPE_MAX14577, }, + { "max77836-muic", MAXIM_DEVICE_TYPE_MAX77836, }, + { } +}; +MODULE_DEVICE_TABLE(platform, max14577_muic_id); + static struct platform_driver max14577_muic_driver = { .driver = { - .name = DEV_NAME, + .name = "max14577-muic", .owner = THIS_MODULE, }, .probe = max14577_muic_probe, .remove = max14577_muic_remove, + .id_table = max14577_muic_id, }; module_platform_driver(max14577_muic_driver); -MODULE_DESCRIPTION("MAXIM 14577 Extcon driver"); -MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>"); +MODULE_DESCRIPTION("Maxim 14577/77836 Extcon driver"); +MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>, Krzysztof Kozlowski <k.kozlowski@samsung.com>"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:extcon-max14577"); diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c index da268fbc901b..2c7c3e191591 100644 --- a/drivers/extcon/extcon-max77693.c +++ b/drivers/extcon/extcon-max77693.c @@ -1175,25 +1175,24 @@ static int max77693_muic_probe(struct platform_device *pdev) } /* Initialize extcon device */ - info->edev = devm_kzalloc(&pdev->dev, sizeof(struct extcon_dev), - GFP_KERNEL); - if (!info->edev) { + info->edev = devm_extcon_dev_allocate(&pdev->dev, + max77693_extcon_cable); + if (IS_ERR(info->edev)) { dev_err(&pdev->dev, "failed to allocate memory for extcon\n"); ret = -ENOMEM; goto err_irq; } info->edev->name = DEV_NAME; info->edev->dev.parent = &pdev->dev; - info->edev->supported_cable = max77693_extcon_cable; - ret = extcon_dev_register(info->edev); + + ret = devm_extcon_dev_register(&pdev->dev, info->edev); if (ret) { dev_err(&pdev->dev, "failed to register extcon device\n"); goto err_irq; } - /* Initialize MUIC register by using platform data or default data */ - if (pdata->muic_data) { + if (pdata && pdata->muic_data) { init_data = pdata->muic_data->init_data; num_init_data = pdata->muic_data->num_init_data; } else { @@ -1226,7 +1225,7 @@ static int max77693_muic_probe(struct platform_device *pdev) = init_data[i].data; } - if (pdata->muic_data) { + if (pdata && pdata->muic_data) { struct max77693_muic_platform_data *muic_pdata = pdata->muic_data; @@ -1267,7 +1266,7 @@ 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); @@ -1283,12 +12 |