[PATCH] Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw

From: Matjaz Hegedic
Date: Sat Mar 04 2017 - 21:22:05 EST


EeeBook X205TA is yet another ASUS device with a special touchpad
firmware that needs to be accounted for during initialization, or
else the touchpad will go into an invalid state upon suspend/resume.
Adding the appropriate ic_type and product_id check fixes the problem.

Signed-off-by: Matjaz Hegedic <matjaz.hegedic@xxxxxxxxx>
---
drivers/input/mouse/elan_i2c_core.c | 22 ++++++++++++----------
1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 2c7d287..dde3ad7 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -218,17 +218,19 @@ static int elan_query_product(struct elan_tp_data *data)

static int elan_check_ASUS_special_fw(struct elan_tp_data *data)
{
- if (data->ic_type != 0x0E)
- return false;
-
- switch (data->product_id) {
- case 0x05 ... 0x07:
- case 0x09:
- case 0x13:
- return true;
- default:
- return false;
+ if (data->ic_type == 0x0E) {
+ switch (data->product_id) {
+ case 0x05 ... 0x07:
+ case 0x09:
+ case 0x13:
+ return true;
+ }
}
+ /* ASUS EeeBook X205TA */
+ else if (data->ic_type == 0x8 && data->product_id == 0x26)
+ return true;
+
+ return false;
}

static int __elan_initialize(struct elan_tp_data *data)
--
2.7.4