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| author | Jiri Kosina <jkosina@suse.cz> | 2019-03-05 17:42:51 +0300 |
|---|---|---|
| committer | Jiri Kosina <jkosina@suse.cz> | 2019-03-05 17:42:51 +0300 |
| commit | 9f66d83ed704bc9ac0f09eb744f8e76a81006eb9 (patch) | |
| tree | e9a9a84797e440bb14c340d8671159cffe535cc4 /drivers/hid/i2c-hid | |
| parent | edaea3d904af805545073070307ca5f3afce4e18 (diff) | |
| parent | 09cc8b361887787a3577aa0b6510af4b11b51b9e (diff) | |
| download | linux-9f66d83ed704bc9ac0f09eb744f8e76a81006eb9.tar.xz | |
Merge branch 'for-5.1/i2c-hid' into for-linus
Fix dmesg flood for Elan touchpanels which are too slow to assert IRQ from Kai-Heng Feng
Diffstat (limited to 'drivers/hid/i2c-hid')
| -rw-r--r-- | drivers/hid/i2c-hid/i2c-hid-core.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c index c5edfa966343..90164fed08d3 100644 --- a/drivers/hid/i2c-hid/i2c-hid-core.c +++ b/drivers/hid/i2c-hid/i2c-hid-core.c @@ -50,6 +50,7 @@ #define I2C_HID_QUIRK_NO_IRQ_AFTER_RESET BIT(1) #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) /* flags */ #define I2C_HID_STARTED 0 @@ -181,6 +182,8 @@ 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, HID_ANY_ID, + I2C_HID_QUIRK_BOGUS_IRQ }, { 0, 0 } }; @@ -505,6 +508,12 @@ static void i2c_hid_get_input(struct i2c_hid *ihid) return; } + if (ihid->quirks & I2C_HID_QUIRK_BOGUS_IRQ && ret_size == 0xffff) { + dev_warn_once(&ihid->client->dev, "%s: IRQ triggered but " + "there's no data\n", __func__); + return; + } + if ((ret_size > size) || (ret_size < 2)) { dev_err(&ihid->client->dev, "%s: incomplete report (%d/%d)\n", __func__, size, ret_size); |