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path: root/drivers/input/mouse/elantech.c
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Diffstat (limited to 'drivers/input/mouse/elantech.c')
-rw-r--r--drivers/input/mouse/elantech.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 510e7c0622d3..07e40a58e66c 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1793,11 +1793,11 @@ static int elantech_setup_smbus(struct psmouse *psmouse,
if (elantech_smbus == ELANTECH_SMBUS_NOT_SET) {
/*
- * FIXME:
- * constraint the I2C capable devices by using FW version,
- * board version, or by using DMI matching
+ * New ICs are enabled by default.
+ * Old ICs are up to the user to decide.
*/
- return -ENXIO;
+ if (!ETP_NEW_IC_SMBUS_HOST_NOTIFY(info->fw_version))
+ return -ENXIO;
}
psmouse_info(psmouse, "Trying to set up SMBus access\n");
@@ -1818,6 +1818,9 @@ static int elantech_setup_smbus(struct psmouse *psmouse,
static bool elantech_use_host_notify(struct psmouse *psmouse,
struct elantech_device_info *info)
{
+ if (ETP_NEW_IC_SMBUS_HOST_NOTIFY(info->fw_version))
+ return true;
+
switch (info->bus) {
case ETP_BUS_PS2_ONLY:
/* expected case */