linux-kernel - Re: [PATCH 02/12] rtc: omap: fix missing wakealarm attribute

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Date:	Fri, 10 Oct 2014 12:55:49 -0500
From:	Felipe Balbi <balbi@...com>
To:	Johan Hovold <johan@...nel.org>
CC:	Alessandro Zummo <a.zummo@...ertech.it>,
	Tony Lindgren <tony@...mide.com>,
	Benoît Cousson <bcousson@...libre.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Felipe Balbi <balbi@...com>, Lokesh Vutla <lokeshvutla@...com>,
	Guenter Roeck <linux@...ck-us.net>,
	Colin Foe-Parker <colin.foeparker@...icpd.com>,
	<nsekhar@...com>, <t-kristo@...com>, <j-keerthy@...com>,
	<linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<devicetree@...r.kernel.org>, <rtc-linux@...glegroups.com>,
	<linux-kernel@...r.kernel.org>, stable <stable@...r.kernel.org>
Subject: Re: [PATCH 02/12] rtc: omap: fix missing wakealarm attribute

On Thu, Oct 09, 2014 at 09:06:24PM +0200, Johan Hovold wrote:
> The platform device must be registered as wakeup capable before
> registering the class device, or the wakealarm attribute will not be
> created.
> 
> Also make sure to unregister the wakeup source on probe errors.
> 
> Fixes: 1d2e2b65d098 ("rtc: omap: restore back (hard-code) wakeup support")
> Cc: stable <stable@...r.kernel.org>
> Signed-off-by: Johan Hovold <johan@...nel.org>
> ---

Reviewed-by: Felipe Balbi <balbi@...com>

>  drivers/rtc/rtc-omap.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
> index f842c216f2dd..828cb9983cc2 100644
> --- a/drivers/rtc/rtc-omap.c
> +++ b/drivers/rtc/rtc-omap.c
> @@ -416,6 +416,8 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
>  		rtc_writel(KICK1_VALUE, OMAP_RTC_KICK1_REG);
>  	}
>  
> +	device_init_wakeup(&pdev->dev, true);
> +
>  	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
>  			&omap_rtc_ops, THIS_MODULE);
>  	if (IS_ERR(rtc)) {
> @@ -484,8 +486,6 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
>  	 *    is write-only, and always reads as zero...)
>  	 */
>  
> -	device_init_wakeup(&pdev->dev, true);
> -
>  	if (new_ctrl & (u8) OMAP_RTC_CTRL_SPLIT)
>  		pr_info("%s: split power mode\n", pdev->name);
>  
> @@ -495,6 +495,7 @@ static int __init omap_rtc_probe(struct platform_device *pdev)
>  	return 0;
>  
>  fail0:
> +	device_init_wakeup(&pdev->dev, false);
>  	if (id_entry->driver_data & OMAP_RTC_HAS_KICKER)
>  		rtc_writel(0, OMAP_RTC_KICK0_REG);
>  	pm_runtime_put_sync(&pdev->dev);
> -- 
> 2.0.4
> 

-- 
balbi

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