diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index b6d93f4ad037e4..660b4e0e912e7c 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -389,6 +389,7 @@ #define USB_DEVICE_ID_TOSHIBA_CLICK_L9W 0x0401 #define USB_DEVICE_ID_HP_X2 0x074d #define USB_DEVICE_ID_HP_X2_10_COVER 0x0755 +#define I2C_DEVICE_ID_ELAN_TOUCHPAD 0x303e #define USB_VENDOR_ID_ELECOM 0x056e #define USB_DEVICE_ID_ELECOM_BM084 0x0061 diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index 90164fed08d35e..adeb2b43a25b64 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -51,6 +51,7 @@ #define I2C_HID_QUIRK_NO_RUNTIME_PM BIT(2) #define I2C_HID_QUIRK_DELAY_AFTER_SLEEP BIT(3) #define I2C_HID_QUIRK_BOGUS_IRQ BIT(4) +#define I2C_HID_QUIRK_FORCE_TRIGGER_FALLING BIT(5) /* flags */ #define I2C_HID_STARTED 0 @@ -182,8 +183,10 @@ static const struct i2c_hid_quirks { I2C_HID_QUIRK_NO_RUNTIME_PM }, { I2C_VENDOR_ID_GOODIX, I2C_DEVICE_ID_GOODIX_01F0, I2C_HID_QUIRK_NO_RUNTIME_PM }, + { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHPAD, + I2C_HID_QUIRK_BOGUS_IRQ | I2C_HID_QUIRK_FORCE_TRIGGER_FALLING }, { USB_VENDOR_ID_ELAN, HID_ANY_ID, - I2C_HID_QUIRK_BOGUS_IRQ }, + I2C_HID_QUIRK_BOGUS_IRQ }, { 0, 0 } }; @@ -854,6 +857,8 @@ static int i2c_hid_init_irq(struct i2c_client *client) if (!irq_get_trigger_type(client->irq)) irqflags = IRQF_TRIGGER_LOW; + if (ihid->quirks & I2C_HID_QUIRK_FORCE_TRIGGER_FALLING) + irqflags = IRQF_TRIGGER_FALLING; ret = request_threaded_irq(client->irq, NULL, i2c_hid_irq, irqflags | IRQF_ONESHOT, client->name, ihid); @@ -1123,14 +1128,10 @@ static int i2c_hid_probe(struct i2c_client *client, if (ret < 0) goto err_pm; - ret = i2c_hid_init_irq(client); - if (ret < 0) - goto err_pm; - hid = hid_allocate_device(); if (IS_ERR(hid)) { ret = PTR_ERR(hid); - goto err_irq; + goto err_pm; } ihid->hid = hid; @@ -1149,11 +1150,15 @@ static int i2c_hid_probe(struct i2c_client *client, ihid->quirks = i2c_hid_lookup_quirk(hid->vendor, hid->product); + ret = i2c_hid_init_irq(client); + if (ret < 0) + goto err_mem_free; + ret = hid_add_device(hid); if (ret) { if (ret != -ENODEV) hid_err(client, "can't add hid device: %d\n", ret); - goto err_mem_free; + goto err_irq; } if (!(ihid->quirks & I2C_HID_QUIRK_NO_RUNTIME_PM)) @@ -1161,12 +1166,12 @@ static int i2c_hid_probe(struct i2c_client *client, return 0; +err_irq: + free_irq(client->irq, ihid); + err_mem_free: hid_destroy_device(hid); -err_irq: - free_irq(client->irq, ihid); - err_pm: pm_runtime_put_noidle(&client->dev); pm_runtime_disable(&client->dev);