rmi4 got spam data after S3 resume on some ThinkPads. Then TrackPoint lost when be detected by psmouse. Clear irqs status before set irqs will make TrackPoint back.
BugLink: https://bugs.launchpad.net/bugs/1791427 Cc: <sta...@vger.kernel.org> Signed-off-by: Aaron Ma <aaron...@canonical.com> --- drivers/input/rmi4/rmi_driver.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/input/rmi4/rmi_driver.c b/drivers/input/rmi4/rmi_driver.c index fc3ab93b7aea..20631b272f43 100644 --- a/drivers/input/rmi4/rmi_driver.c +++ b/drivers/input/rmi4/rmi_driver.c @@ -374,6 +374,17 @@ static int rmi_driver_set_irq_bits(struct rmi_device *rmi_dev, struct device *dev = &rmi_dev->dev; mutex_lock(&data->irq_mutex); + + /* Dummy read in order to clear irqs */ + error = rmi_read_block(rmi_dev, + data->f01_container->fd.data_base_addr + 1, + data->irq_status, data->num_of_irq_regs); + if (error < 0) { + dev_err(dev, "%s: Failed to read interrupt status!", + __func__); + goto error_unlock; + } + bitmap_or(data->new_irq_mask, data->current_irq_mask, mask, data->irq_count); -- 2.17.1
