lis3: use input_polled_device

Now that there is no need to hookup on the open/close of the joystick,
it's possible to use the simplified interface input_polled_device, instead
of creating our own kthread.

[randy.dunlap@oracle.com: fix Kconfig]
[randy.dunlap@oracle.com: fix Kconfig some more]
Signed-off-by: Eric Piel <eric.piel@tremplin-utc.net>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d73f5f4..eec7dca 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -940,6 +940,7 @@
 config SENSORS_LIS3LV02D
 	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer"
 	depends on ACPI && INPUT
+	select INPUT_POLLDEV
 	select NEW_LEDS
 	select LEDS_CLASS
 	default n
@@ -967,6 +968,7 @@
 config SENSORS_LIS3_SPI
 	tristate "STMicroeletronics LIS3LV02Dx three-axis digital accelerometer (SPI)"
 	depends on !ACPI && SPI_MASTER && INPUT
+	select INPUT_POLLDEV
 	default n
 	help
 	  This driver provides support for the LIS3LV02Dx accelerometer connected