diff options
Diffstat (limited to 'drivers/input/touchscreen/ad7877.c')
| -rw-r--r-- | drivers/input/touchscreen/ad7877.c | 75 |
1 files changed, 28 insertions, 47 deletions
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c index a1952fcc083..523865daa1d 100644 --- a/drivers/input/touchscreen/ad7877.c +++ b/drivers/input/touchscreen/ad7877.c @@ -37,13 +37,14 @@ #include <linux/device.h> -#include <linux/init.h> #include <linux/delay.h> #include <linux/input.h> #include <linux/interrupt.h> +#include <linux/pm.h> #include <linux/slab.h> #include <linux/spi/spi.h> #include <linux/spi/ad7877.h> +#include <linux/module.h> #include <asm/irq.h> #define TS_PEN_UP_TIMEOUT msecs_to_jiffies(100) @@ -209,11 +210,6 @@ static bool gpio3; module_param(gpio3, bool, 0); MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3"); -/* - * ad7877_read/write are only used for initial setup and for sysfs controls. - * The main traffic is done using spi_async() in the interrupt handler. - */ - static int ad7877_read(struct spi_device *spi, u16 reg) { struct ser_req *req; @@ -271,7 +267,7 @@ static int ad7877_write(struct spi_device *spi, u16 reg, u16 val) static int ad7877_read_adc(struct spi_device *spi, unsigned command) { - struct ad7877 *ts = dev_get_drvdata(&spi->dev); + struct ad7877 *ts = spi_get_drvdata(spi); struct ser_req *req; int status; int sample; @@ -486,10 +482,10 @@ static ssize_t ad7877_disable_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -516,10 +512,10 @@ static ssize_t ad7877_dac_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -546,10 +542,10 @@ static ssize_t ad7877_gpio3_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -577,10 +573,10 @@ static ssize_t ad7877_gpio4_store(struct device *dev, const char *buf, size_t count) { struct ad7877 *ts = dev_get_drvdata(dev); - unsigned long val; + unsigned int val; int error; - error = strict_strtoul(buf, 10, &val); + error = kstrtouint(buf, 10, &val); if (error) return error; @@ -610,10 +606,10 @@ static struct attribute *ad7877_attributes[] = { NULL }; -static mode_t ad7877_attr_is_visible(struct kobject *kobj, +static umode_t ad7877_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n) { - mode_t mode = attr->mode; + umode_t mode = attr->mode; if (attr == &dev_attr_aux3.attr) { if (gpio3) @@ -680,11 +676,11 @@ static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts) } } -static int __devinit ad7877_probe(struct spi_device *spi) +static int ad7877_probe(struct spi_device *spi) { struct ad7877 *ts; struct input_dev *input_dev; - struct ad7877_platform_data *pdata = spi->dev.platform_data; + struct ad7877_platform_data *pdata = dev_get_platdata(&spi->dev); int err; u16 verify; @@ -718,7 +714,7 @@ static int __devinit ad7877_probe(struct spi_device *spi) goto err_free_mem; } - dev_set_drvdata(&spi->dev, ts); + spi_set_drvdata(spi, ts); ts->spi = spi; ts->input = input_dev; @@ -804,13 +800,12 @@ err_free_irq: err_free_mem: input_free_device(input_dev); kfree(ts); - dev_set_drvdata(&spi->dev, NULL); return err; } -static int __devexit ad7877_remove(struct spi_device *spi) +static int ad7877_remove(struct spi_device *spi) { - struct ad7877 *ts = dev_get_drvdata(&spi->dev); + struct ad7877 *ts = spi_get_drvdata(spi); sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); @@ -821,57 +816,43 @@ static int __devexit ad7877_remove(struct spi_device *spi) kfree(ts); dev_dbg(&spi->dev, "unregistered touchscreen\n"); - dev_set_drvdata(&spi->dev, NULL); return 0; } -#ifdef CONFIG_PM -static int ad7877_suspend(struct spi_device *spi, pm_message_t message) +#ifdef CONFIG_PM_SLEEP +static int ad7877_suspend(struct device *dev) { - struct ad7877 *ts = dev_get_drvdata(&spi->dev); + struct ad7877 *ts = dev_get_drvdata(dev); ad7877_disable(ts); return 0; } -static int ad7877_resume(struct spi_device *spi) +static int ad7877_resume(struct device *dev) { - struct ad7877 *ts = dev_get_drvdata(&spi->dev); + struct ad7877 *ts = dev_get_drvdata(dev); ad7877_enable(ts); return 0; } -#else -#define ad7877_suspend NULL -#define ad7877_resume NULL #endif +static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume); + static struct spi_driver ad7877_driver = { .driver = { .name = "ad7877", - .bus = &spi_bus_type, .owner = THIS_MODULE, + .pm = &ad7877_pm, }, .probe = ad7877_probe, - .remove = __devexit_p(ad7877_remove), - .suspend = ad7877_suspend, - .resume = ad7877_resume, + .remove = ad7877_remove, }; -static int __init ad7877_init(void) -{ - return spi_register_driver(&ad7877_driver); -} -module_init(ad7877_init); - -static void __exit ad7877_exit(void) -{ - spi_unregister_driver(&ad7877_driver); -} -module_exit(ad7877_exit); +module_spi_driver(ad7877_driver); MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>"); MODULE_DESCRIPTION("AD7877 touchscreen Driver"); |