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Input: elan_i2c - only increment wakeup count on touch 

[ Upstream commit 966334dfc4 ]

This moves the wakeup increment for elan devices to the touch report.
This prevents the drivers from incorrectly reporting a wakeup when the
resume callback resets then device, which causes an interrupt to
occur.

Signed-off-by: Derek Basehore <dbasehore@chromium.org>
Link: https://lore.kernel.org/r/20200706235046.1984283-1-dbasehore@chromium.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Derek Basehore 2020-07-06 17:39:41 -07:00 committed by Greg Kroah-Hartman
parent 186d3fe73e
commit 4f5eb2735f
1 changed files with 5 additions and 4 deletions
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9
drivers/input/mouse/elan_i2c_core.c
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@ -951,6 +951,8 @@ static void elan_report_absolute(struct elan_tp_data *data, u8 *packet)
u8 hover_info = packet[ETP_HOVER_INFO_OFFSET];
bool contact_valid, hover_event;
pm_wakeup_event(&data->client->dev, 0);
hover_event = hover_info & 0x40;
for (i = 0; i < ETP_MAX_FINGERS; i++) {
contact_valid = tp_info & (1U << (3 + i));
@ -974,6 +976,8 @@ static void elan_report_trackpoint(struct elan_tp_data *data, u8 *report)
u8 *packet = &report[ETP_REPORT_ID_OFFSET + 1];
int x, y;
pm_wakeup_event(&data->client->dev, 0);
if (!data->tp_input) {
dev_warn_once(&data->client->dev,
"received a trackpoint report while no trackpoint device has been created. Please report upstream.\n");
@ -998,7 +1002,6 @@ static void elan_report_trackpoint(struct elan_tp_data *data, u8 *report)
static irqreturn_t elan_isr(int irq, void *dev_id)
{
struct elan_tp_data *data = dev_id;
struct device *dev = &data->client->dev;
int error;
u8 report[ETP_MAX_REPORT_LEN];
@ -1016,8 +1019,6 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
if (error)
goto out;
pm_wakeup_event(dev, 0);
switch (report[ETP_REPORT_ID_OFFSET]) {
case ETP_REPORT_ID:
elan_report_absolute(data, report);
@ -1026,7 +1027,7 @@ static irqreturn_t elan_isr(int irq, void *dev_id)
elan_report_trackpoint(data, report);
break;
default:
dev_err(dev, "invalid report id data (%x)\n",
dev_err(&data->client->dev, "invalid report id data (%x)\n",
report[ETP_REPORT_ID_OFFSET]);
}