Re: [PATCH] rtc: hym8563: enable wakeup by default

From: Alexandre Belloni
Date: Thu Nov 05 2020 - 17:09:43 EST


On 05/11/2020 22:01:10+0000, Guillaume Tucker wrote:
> Enable wakeup by default in the hym8563 driver to match the behaviour
> implemented by the majority of RTC drivers. As per the description of
> device_init_wakeup(), it should be enabled for "devices that everyone
> expects to be wakeup sources". One would expect this to be the case
> with a real-time clock.
>

Actually, the proper way of doing it for a discrete RTC is to only
enable wakeup if the irq request is successful or when the wakeup-source
property is present on the node.

> Fixes: dcaf03849352 ("rtc: add hym8563 rtc-driver")
> Reported-by: kernelci.org bot <bot@xxxxxxxxxxxx>
> Signed-off-by: Guillaume Tucker <guillaume.tucker@xxxxxxxxxxxxx>
> ---
> drivers/rtc/rtc-hym8563.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/rtc/rtc-hym8563.c b/drivers/rtc/rtc-hym8563.c
> index 0fb79c4afb46..6fccfe634d57 100644
> --- a/drivers/rtc/rtc-hym8563.c
> +++ b/drivers/rtc/rtc-hym8563.c
> @@ -527,7 +527,7 @@ static int hym8563_probe(struct i2c_client *client,
> hym8563->client = client;
> i2c_set_clientdata(client, hym8563);
>
> - device_set_wakeup_capable(&client->dev, true);
> + device_init_wakeup(&client->dev, true);
>
> ret = hym8563_init_device(client);
> if (ret) {
> --
> 2.20.1
>

--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com