linux-kernel - Re: [PATCH v2] input: cros_ec

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Message-ID: <20170403184336.GD34530@dtor-ws>
Date:   Mon, 3 Apr 2017 11:43:36 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Jeffy Chen <jeffy.chen@...k-chips.com>
Cc:     linux-kernel@...r.kernel.org, briannorris@...omium.org,
        dbasehore@...gle.com, dianders@...omium.org
Subject: Re: [PATCH v2] input: cros_ec_keyb: Report wakeup events

On Sun, Apr 02, 2017 at 08:07:39AM +0800, Jeffy Chen wrote:
> Report wakeup events when process events.
> 
> Signed-off-by: Jeffy Chen <jeffy.chen@...k-chips.com>
> ---
> 
> Changes in v2:
> Remove unneeded dts changes.
> 
>  drivers/input/keyboard/cros_ec_keyb.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/input/keyboard/cros_ec_keyb.c b/drivers/input/keyboard/cros_ec_keyb.c
> index 6a250d6..a93d55f 100644
> --- a/drivers/input/keyboard/cros_ec_keyb.c
> +++ b/drivers/input/keyboard/cros_ec_keyb.c
> @@ -286,6 +286,9 @@ static int cros_ec_keyb_work(struct notifier_block *nb,
>  		return NOTIFY_DONE;
>  	}
>  
> +	if (device_may_wakeup(ckdev->dev))
> +		pm_wakeup_event(ckdev->dev, 0);
> +
>  	return NOTIFY_OK;
>  }
>  
> @@ -632,6 +635,12 @@ static int cros_ec_keyb_probe(struct platform_device *pdev)
>  		return err;
>  	}
>  
> +	err = device_init_wakeup(dev, 1);

I would prefer if we did not mark cros_ec devices as wakeup sources
unconditionally. Your original patch series was better (except it failed
to parse the "wakeup-source" property that you introduced.

> +	if (err) {
> +		dev_err(dev, "cannot init wakeup: %d\n", err);
> +		return err;
> +	}
> +
>  	return 0;
>  }
>  
> -- 
> 2.1.4
> 
> 

Thanks.

-- 
Dmitry