Input: elan_i2c - add product IDs FW names
authorCharlie Mooney <charliemooney@chromium.org>
Mon, 8 Jun 2015 23:48:23 +0000 (16:48 -0700)
committerDmitry Torokhov <dmitry.torokhov@gmail.com>
Tue, 9 Jun 2015 00:12:25 +0000 (17:12 -0700)
commit7b9f1830745cb3ad9e0f3774e83900610cedd39c
treee7fb5b43a30524e2c05261df219da205125cc0fd
parent12018ac3d679d6a3c6c738ac805797fe4dd43912
Input: elan_i2c - add product IDs FW names

Previously the elan_i2c touchpad driver would simply request the firmware
"/lib/firmware/elan_i2c.bin", which does not work well if there are
multiple such devices in the system.

Let's append the "product ID" (by using the same function as the sysfs
interface for consistency) to the filename.  This results in filenames of
the form "/lib/firmware/elan_i2c_72.0.bin", allowing you to support
multiple elan_i2c touchpads on the same device by simply naming each
device's FW with its corresponding product ID.  This way when you trigger a
fw update the driver will load the correct binary.

Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
drivers/input/mouse/elan_i2c.h
drivers/input/mouse/elan_i2c_core.c