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path: root/drivers/hid/hid-sensor-hub.c
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Diffstat (limited to 'drivers/hid/hid-sensor-hub.c')
-rw-r--r--drivers/hid/hid-sensor-hub.c25
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index a76eb2a0a987..92870cdb52d9 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -593,6 +593,20 @@ static __u8 *sensor_hub_report_fixup(struct hid_device *hdev, __u8 *rdesc,
}
}
+ /* Checks if the report descriptor of Thinkpad Helix 2 has a logical
+ * minimum for magnetic flux axis greater than the maximum */
+ if (hdev->product == USB_DEVICE_ID_TEXAS_INSTRUMENTS_LENOVO_YOGA &&
+ *rsize == 2558 && rdesc[913] == 0x17 && rdesc[914] == 0x40 &&
+ rdesc[915] == 0x81 && rdesc[916] == 0x08 &&
+ rdesc[917] == 0x00 && rdesc[918] == 0x27 &&
+ rdesc[921] == 0x07 && rdesc[922] == 0x00) {
+ /* Sets negative logical minimum for mag x, y and z */
+ rdesc[914] = rdesc[935] = rdesc[956] = 0xc0;
+ rdesc[915] = rdesc[936] = rdesc[957] = 0x7e;
+ rdesc[916] = rdesc[937] = rdesc[958] = 0xf7;
+ rdesc[917] = rdesc[938] = rdesc[959] = 0xff;
+ }
+
return rdesc;
}
@@ -646,8 +660,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
GFP_KERNEL);
if (sd->hid_sensor_hub_client_devs == NULL) {
hid_err(hdev, "Failed to allocate memory for mfd cells\n");
- ret = -ENOMEM;
- goto err_stop_hw;
+ ret = -ENOMEM;
+ goto err_stop_hw;
}
for (i = 0; i < hdev->maxcollection; ++i) {
@@ -684,8 +698,8 @@ static int sensor_hub_probe(struct hid_device *hdev,
collection->usage);
if (name == NULL) {
hid_err(hdev, "Failed MFD device name\n");
- ret = -ENOMEM;
- goto err_stop_hw;
+ ret = -ENOMEM;
+ goto err_stop_hw;
}
sd->hid_sensor_hub_client_devs[
sd->hid_sensor_client_cnt].name = name;
@@ -777,6 +791,9 @@ static const struct hid_device_id sensor_hub_devices[] = {
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
USB_DEVICE_ID_ITE_LENOVO_YOGA),
.driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
+ { HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, USB_VENDOR_ID_ITE,
+ USB_DEVICE_ID_ITE_LENOVO_YOGA2),
+ .driver_data = HID_SENSOR_HUB_ENUM_QUIRK},
{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_SENSOR_HUB, HID_ANY_ID,
HID_ANY_ID) },
{ }
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