diff options
Diffstat (limited to 'drivers/input/touchscreen/ads7846.c')
| -rw-r--r-- | drivers/input/touchscreen/ads7846.c | 99 |
1 files changed, 63 insertions, 36 deletions
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c index 66e411badf70..c6164b6f476a 100644 --- a/drivers/input/touchscreen/ads7846.c +++ b/drivers/input/touchscreen/ads7846.c @@ -76,6 +76,7 @@ struct ads7846 { char phys[32]; struct spi_device *spi; + struct attribute_group *attr_group; u16 model; u16 vref_delay_usecs; u16 x_plate_ohms; @@ -189,7 +190,7 @@ static int ads7846_read12_ser(struct device *dev, unsigned command) { struct spi_device *spi = to_spi_device(dev); struct ads7846 *ts = dev_get_drvdata(dev); - struct ser_req *req = kzalloc(sizeof *req, SLAB_KERNEL); + struct ser_req *req = kzalloc(sizeof *req, GFP_KERNEL); int status; int sample; int i; @@ -317,6 +318,48 @@ static ssize_t ads7846_disable_store(struct device *dev, static DEVICE_ATTR(disable, 0664, ads7846_disable_show, ads7846_disable_store); +static struct attribute *ads7846_attributes[] = { + &dev_attr_temp0.attr, + &dev_attr_temp1.attr, + &dev_attr_vbatt.attr, + &dev_attr_vaux.attr, + &dev_attr_pen_down.attr, + &dev_attr_disable.attr, + NULL, +}; + +static struct attribute_group ads7846_attr_group = { + .attrs = ads7846_attributes, +}; + +/* + * ads7843/7845 don't have temperature sensors, and + * use the other sensors a bit differently too + */ + +static struct attribute *ads7843_attributes[] = { + &dev_attr_vbatt.attr, + &dev_attr_vaux.attr, + &dev_attr_pen_down.attr, + &dev_attr_disable.attr, + NULL, +}; + +static struct attribute_group ads7843_attr_group = { + .attrs = ads7843_attributes, +}; + +static struct attribute *ads7845_attributes[] = { + &dev_attr_vaux.attr, + &dev_attr_pen_down.attr, + &dev_attr_disable.attr, + NULL, +}; + +static struct attribute_group ads7845_attr_group = { + .attrs = ads7845_attributes, +}; + /*--------------------------------------------------------------------------*/ /* @@ -487,7 +530,7 @@ static void ads7846_timer(unsigned long handle) spin_unlock_irq(&ts->lock); } -static irqreturn_t ads7846_irq(int irq, void *handle, struct pt_regs *regs) +static irqreturn_t ads7846_irq(int irq, void *handle) { struct ads7846 *ts = handle; unsigned long flags; @@ -788,38 +831,30 @@ static int __devinit ads7846_probe(struct spi_device *spi) (void) ads7846_read12_ser(&spi->dev, READ_12BIT_SER(vaux) | ADS_PD10_ALL_ON); - /* ads7843/7845 don't have temperature sensors, and - * use the other sensors a bit differently too - */ - if (ts->model == 7846) { - device_create_file(&spi->dev, &dev_attr_temp0); - device_create_file(&spi->dev, &dev_attr_temp1); + switch (ts->model) { + case 7846: + ts->attr_group = &ads7846_attr_group; + break; + case 7845: + ts->attr_group = &ads7845_attr_group; + break; + default: + ts->attr_group = &ads7843_attr_group; + break; } - if (ts->model != 7845) - device_create_file(&spi->dev, &dev_attr_vbatt); - device_create_file(&spi->dev, &dev_attr_vaux); - - device_create_file(&spi->dev, &dev_attr_pen_down); - - device_create_file(&spi->dev, &dev_attr_disable); + err = sysfs_create_group(&spi->dev.kobj, ts->attr_group); + if (err) + goto err_free_irq; err = input_register_device(input_dev); if (err) - goto err_remove_attr; + goto err_remove_attr_group; return 0; - err_remove_attr: - device_remove_file(&spi->dev, &dev_attr_disable); - device_remove_file(&spi->dev, &dev_attr_pen_down); - if (ts->model == 7846) { - device_remove_file(&spi->dev, &dev_attr_temp1); - device_remove_file(&spi->dev, &dev_attr_temp0); - } - if (ts->model != 7845) - device_remove_file(&spi->dev, &dev_attr_vbatt); - device_remove_file(&spi->dev, &dev_attr_vaux); - + err_remove_attr_group: + sysfs_remove_group(&spi->dev.kobj, ts->attr_group); + err_free_irq: free_irq(spi->irq, ts); err_free_mem: input_free_device(input_dev); @@ -835,15 +870,7 @@ static int __devexit ads7846_remove(struct spi_device *spi) ads7846_suspend(spi, PMSG_SUSPEND); - device_remove_file(&spi->dev, &dev_attr_disable); - device_remove_file(&spi->dev, &dev_attr_pen_down); - if (ts->model == 7846) { - device_remove_file(&spi->dev, &dev_attr_temp1); - device_remove_file(&spi->dev, &dev_attr_temp0); - } - if (ts->model != 7845) - device_remove_file(&spi->dev, &dev_attr_vbatt); - device_remove_file(&spi->dev, &dev_attr_vaux); + sysfs_remove_group(&spi->dev.kobj, ts->attr_group); free_irq(ts->spi->irq, ts); /* suspend left the IRQ disabled */ |