The Thinkpad series 13 uses Host Notify to report the interrupt.
Add elan_smb_alert() to handle those interrupts and disable the irq
handling on this case.
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
---
new in v4 (was submitted on linux-input with the .alert callback)
---
drivers/input/mouse/elan_i2c_core.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/input/mouse/elan_i2c_core.c b/drivers/input/mouse/elan_i2c_core.c
index 6f16eb4..4aaac5d 100644
--- a/drivers/input/mouse/elan_i2c_core.c
+++ b/drivers/input/mouse/elan_i2c_core.c
@@ -1040,6 +1040,21 @@ static int elan_probe(struct i2c_client *client,
I2C_FUNC_SMBUS_BLOCK_DATA |
I2C_FUNC_SMBUS_I2C_BLOCK)) {
transport_ops = &elan_smbus_ops;
+
+ if (!irq) {
+ if (!i2c_check_functionality(client->adapter,
+ I2C_FUNC_SMBUS_HOST_NOTIFY)) {
+ dev_err(dev, "no Host Notify support\n");
+ return -ENODEV;
+ }
+
+ irq = i2c_smbus_host_notify_to_irq(client);
+ if (irq < 0) {
+ dev_err(dev,
+ "Unable to request a Host Notify IRQ.\n");
+ return irq;
+ }
+ }
} else {
dev_err(dev, "not a supported I2C/SMBus adapter\n");
return -EIO;
--
2.7.4
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