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| author | Anson Huang <Anson.Huang@nxp.com> | 2018-09-17 21:08:52 +0300 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2018-09-19 01:28:07 +0300 |
| commit | 49f62249a9577b0f8c20c7c843d23289d143daf1 (patch) | |
| tree | a9e8440aab6221af0cd0cc9bd3c0276db6b9a3c2 /drivers/input | |
| parent | b8a946d8dc245ec3adae65c8eab6f3e73a950af3 (diff) | |
| download | linux-49f62249a9577b0f8c20c7c843d23289d143daf1.tar.xz | |
Input: egalax_ts - add system wakeup support
This patch adds wakeup function support for egalax touch
screen, if "wakeup-source" is added to device tree's egalax
touch screen node, the wakeup function will be enabled, and
egalax touch screen will be able to wakeup system from suspend.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input')
| -rw-r--r-- | drivers/input/touchscreen/egalax_ts.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c index 80e69bb8283e..83ac8c128192 100644 --- a/drivers/input/touchscreen/egalax_ts.c +++ b/drivers/input/touchscreen/egalax_ts.c @@ -241,6 +241,9 @@ static int __maybe_unused egalax_ts_suspend(struct device *dev) struct i2c_client *client = to_i2c_client(dev); int ret; + if (device_may_wakeup(dev)) + return enable_irq_wake(client->irq); + ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN); return ret > 0 ? 0 : ret; } @@ -249,6 +252,9 @@ static int __maybe_unused egalax_ts_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); + if (device_may_wakeup(dev)) + return disable_irq_wake(client->irq); + return egalax_wake_up_device(client); } |