From d3de2935b6bbf327afd917728446c2d77c99aa9d Mon Sep 17 00:00:00 2001 From: Jonathan Cameron Date: Mon, 27 Jun 2011 13:07:30 +0100 Subject: [PATCH] staging:iio:adc:adt7410 allocate chip state with iio_dev and use iio_priv to access. Signed-off-by: Jonathan Cameron Acked-by: Michael Hennerich Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/adt7410.c | 86 ++++++++++++++----------------- 1 file changed, 38 insertions(+), 48 deletions(-) diff --git a/drivers/staging/iio/adc/adt7410.c b/drivers/staging/iio/adc/adt7410.c index c40a84f9c2ff..76aa0639a55a 100644 --- a/drivers/staging/iio/adc/adt7410.c +++ b/drivers/staging/iio/adc/adt7410.c @@ -75,7 +75,6 @@ struct adt7410_chip_info { struct i2c_client *client; - struct iio_dev *indio_dev; u8 config; }; @@ -144,7 +143,7 @@ static ssize_t adt7410_show_mode(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u8 config; config = chip->config & ADT7410_MODE_MASK; @@ -167,7 +166,7 @@ static ssize_t adt7410_store_mode(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u16 config; int ret; @@ -211,7 +210,7 @@ static ssize_t adt7410_show_resolution(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); int ret; int bits; @@ -233,7 +232,7 @@ static ssize_t adt7410_store_resolution(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); unsigned long data; u16 config; int ret; @@ -269,7 +268,7 @@ static ssize_t adt7410_show_id(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u8 id; int ret; @@ -319,7 +318,7 @@ static ssize_t adt7410_show_value(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u8 status; u16 data; int ret, i = 0; @@ -358,7 +357,7 @@ static const struct attribute_group adt7410_attribute_group = { static irqreturn_t adt7410_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; - struct adt7410_chip_info *chip = iio_dev_get_devdata(indio_dev); + struct adt7410_chip_info *chip = iio_priv(indio_dev); s64 timestamp = iio_get_time_ns(); u8 status; @@ -392,7 +391,7 @@ static ssize_t adt7410_show_event_mode(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); int ret; ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config); @@ -411,7 +410,7 @@ static ssize_t adt7410_set_event_mode(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u16 config; int ret; @@ -444,7 +443,7 @@ static ssize_t adt7410_show_fault_queue(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); int ret; ret = adt7410_i2c_read_byte(chip, ADT7410_CONFIG, &chip->config); @@ -460,7 +459,7 @@ static ssize_t adt7410_set_fault_queue(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); unsigned long data; int ret; u8 config; @@ -490,7 +489,7 @@ static inline ssize_t adt7410_show_t_bound(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); u16 data; int ret; @@ -508,7 +507,7 @@ static inline ssize_t adt7410_set_t_bound(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); long tmp1, tmp2; u16 data; char *pos; @@ -628,7 +627,7 @@ static ssize_t adt7410_show_t_hyst(struct device *dev, char *buf) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); int ret; u8 t_hyst; @@ -645,7 +644,7 @@ static inline ssize_t adt7410_set_t_hyst(struct device *dev, size_t len) { struct iio_dev *dev_info = dev_get_drvdata(dev); - struct adt7410_chip_info *chip = dev_info->dev_data; + struct adt7410_chip_info *chip = iio_priv(dev_info); int ret; unsigned long data; u8 t_hyst; @@ -728,31 +727,27 @@ static int __devinit adt7410_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct adt7410_chip_info *chip; + struct iio_dev *indio_dev; int ret = 0; unsigned long *adt7410_platform_data = client->dev.platform_data; - chip = kzalloc(sizeof(struct adt7410_chip_info), GFP_KERNEL); - - if (chip == NULL) - return -ENOMEM; - + indio_dev = iio_allocate_device(sizeof(*chip)); + if (indio_dev == NULL) { + ret = -ENOMEM; + goto error_ret; + } + chip = iio_priv(indio_dev); /* this is only used for device removal purposes */ - i2c_set_clientdata(client, chip); + i2c_set_clientdata(client, indio_dev); chip->client = client; - chip->indio_dev = iio_allocate_device(0); - if (chip->indio_dev == NULL) { - ret = -ENOMEM; - goto error_free_chip; - } - chip->indio_dev->name = id->name; - chip->indio_dev->dev.parent = &client->dev; - chip->indio_dev->info = &adt7410_info; - chip->indio_dev->dev_data = (void *)chip; - chip->indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->name = id->name; + indio_dev->dev.parent = &client->dev; + indio_dev->info = &adt7410_info; + indio_dev->modes = INDIO_DIRECT_MODE; - ret = iio_device_register(chip->indio_dev); + ret = iio_device_register(indio_dev); if (ret) goto error_free_dev; @@ -763,7 +758,7 @@ static int __devinit adt7410_probe(struct i2c_client *client, &adt7410_event_handler, IRQF_TRIGGER_LOW, id->name, - chip->indio_dev); + indio_dev); if (ret) goto error_unreg_dev; } @@ -775,7 +770,7 @@ static int __devinit adt7410_probe(struct i2c_client *client, &adt7410_event_handler, adt7410_platform_data[1], id->name, - chip->indio_dev); + indio_dev); if (ret) goto error_unreg_ct_irq; } @@ -809,32 +804,27 @@ static int __devinit adt7410_probe(struct i2c_client *client, return 0; error_unreg_int_irq: - free_irq(adt7410_platform_data[0], chip->indio_dev); + free_irq(adt7410_platform_data[0], indio_dev); error_unreg_ct_irq: - free_irq(client->irq, chip->indio_dev); + free_irq(client->irq, indio_dev); error_unreg_dev: - iio_device_unregister(chip->indio_dev); + iio_device_unregister(indio_dev); error_free_dev: - iio_free_device(chip->indio_dev); -error_free_chip: - kfree(chip); - + iio_free_device(indio_dev); +error_ret: return ret; } static int __devexit adt7410_remove(struct i2c_client *client) { - struct adt7410_chip_info *chip = i2c_get_clientdata(client); - struct iio_dev *indio_dev = chip->indio_dev; + struct iio_dev *indio_dev = i2c_get_clientdata(client); unsigned long *adt7410_platform_data = client->dev.platform_data; if (adt7410_platform_data[0]) - free_irq(adt7410_platform_data[0], chip->indio_dev); + free_irq(adt7410_platform_data[0], indio_dev); if (client->irq) - free_irq(client->irq, chip->indio_dev); + free_irq(client->irq, indio_dev); iio_device_unregister(indio_dev); - iio_free_device(chip->indio_dev); - kfree(chip); return 0; } -- 2.20.1