diff options
Diffstat (limited to 'drivers/input/touchscreen/elants_i2c.c')
| -rw-r--r-- | drivers/input/touchscreen/elants_i2c.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c index e102d7764bc2..d21ca39b0fdb 100644 --- a/drivers/input/touchscreen/elants_i2c.c +++ b/drivers/input/touchscreen/elants_i2c.c @@ -27,6 +27,7 @@ #include <linux/module.h> #include <linux/input.h> #include <linux/interrupt.h> +#include <linux/irq.h> #include <linux/platform_device.h> #include <linux/async.h> #include <linux/i2c.h> @@ -44,7 +45,6 @@ /* Device, Driver information */ #define DEVICE_NAME "elants_i2c" -#define DRV_VERSION "1.0.9" /* Convert from rows or columns into resolution */ #define ELAN_TS_RESOLUTION(n, m) (((n) - 1) * (m)) @@ -999,7 +999,7 @@ static ssize_t show_iap_mode(struct device *dev, "Normal" : "Recovery"); } -static DEVICE_ATTR(calibrate, S_IWUSR, NULL, calibrate_store); +static DEVICE_ATTR_WO(calibrate); static DEVICE_ATTR(iap_mode, S_IRUGO, show_iap_mode, NULL); static DEVICE_ATTR(update_fw, S_IWUSR, NULL, write_update_fw); @@ -1261,10 +1261,13 @@ static int elants_i2c_probe(struct i2c_client *client, } /* - * Systems using device tree should set up interrupt via DTS, - * the rest will use the default falling edge interrupts. + * Platform code (ACPI, DTS) should normally set up interrupt + * for us, but in case it did not let's fall back to using falling + * edge to be compatible with older Chromebooks. */ - irqflags = client->dev.of_node ? 0 : IRQF_TRIGGER_FALLING; + irqflags = irq_get_trigger_type(client->irq); + if (!irqflags) + irqflags = IRQF_TRIGGER_FALLING; error = devm_request_threaded_irq(&client->dev, client->irq, NULL, elants_i2c_irq, @@ -1402,5 +1405,4 @@ module_i2c_driver(elants_i2c_driver); MODULE_AUTHOR("Scott Liu <scott.liu@emc.com.tw>"); MODULE_DESCRIPTION("Elan I2c Touchscreen driver"); -MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); |
