Re: [PATCH v2 6/6] Input: cyttsp5 - implement proper sleep and wakeup procedures

From: Dmitry Torokhov
Date: Mon May 01 2023 - 20:22:33 EST


On Mon, May 01, 2023 at 01:30:10PM +0200, Maximilian Weigand wrote:
> struct cyttsp5 {
> struct device *dev;
> struct completion cmd_done;
> + struct completion cmd_command_done;

Why do we need separate comletion? Do you observe some additional
traffic from the controller when powering it off and on?

> +static int __maybe_unused cyttsp5_suspend(struct device *dev)
> +{
> + struct cyttsp5 *ts = dev_get_drvdata(dev);
> +
> + if (!ts->is_wakeup_source)

I believe the idiomatic way to check this is to call
device_may_wakeup().

> + cyttsp5_enter_sleep(ts);
> + return 0;
> +}

Thanks.

--
Dmitry