Use the current logging styles.

Remove local #define PREFIX.
Add pr_fmt.
Convert printk to pr_<level>.
Signed-off-by: NJoe Perches <joe@perches.com>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

This is handled automatically now.
Signed-off-by: NMatthew Garrett <mjg@redhat.com>

The OLPC XO-1.5 has an ebook switch, triggered when the laptop
screen is rotated then folding down, converting the device into ebook
form.

This switch is exposed through ACPI. Add a driver that exposes it
to userspace as an input device.
Signed-off-by: NDaniel Drake <dsd@laptop.org>
Acked-by: NDmitry Torokhov <dtor@mail.ru>
Signed-off-by: NMatthew Garrett <mjg@redhat.com>