| Message ID | 1536204258-433-1-git-send-email-Anson.Huang@nxp.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [V2] input: egalax_ts: add system wakeup support | expand |
On Thu, Sep 6, 2018 at 12:24 AM, Anson Huang <Anson.Huang@nxp.com> wrote: > 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>
On Thu, Sep 06, 2018 at 01:46:32PM -0300, Fabio Estevam wrote: > On Thu, Sep 6, 2018 at 12:24 AM, Anson Huang <Anson.Huang@nxp.com> wrote: > > 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> Applied, thank you.
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c index 80e69bb..83ac8c1 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); }
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> --- changes since V1: remove unnecessary device wakeup check and fix the irq wake balance issue. drivers/input/touchscreen/egalax_ts.c | 6 ++++++ 1 file changed, 6 insertions(+)