linux-kernel - Re: [RFC/PATCH 11/11] arm: boot: dts: omap: add missing default status for 32k counter

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Date:	Tue, 06 Oct 2015 10:08:44 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Felipe Balbi <balbi@...com>
Cc:	linux-arm-kernel@...ts.infradead.org,
	Tony Lindgren <tony@...mide.com>, daniel.lezcano@...aro.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	tglx@...utronix.de,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>
Subject: Re: [RFC/PATCH 11/11] arm: boot: dts: omap: add missing default status for 32k counter

On Monday 05 October 2015 14:41:07 Felipe Balbi wrote:
> 
> /**
>  * omap_get_timer_dt - get a timer using device-tree
>  * @match       - device-tree match structure for matching a device type
>  * @property    - optional timer property to match
>  *
>  * Helper function to get a timer during early boot using device-tree for use
>  * as kernel system timer. Optionally, the property argument can be used to
>  * select a timer with a specific property. Once a timer is found then mark
>  * the timer node in device-tree as disabled, to prevent the kernel from
>  * registering this timer as a platform device and so no one else can use it.
>  */
> static struct device_node * __init omap_get_timer_dt(const struct of_device_id *match,
>                                                      const char *property)
> {
>         struct device_node *np;
> 
>         for_each_matching_node(np, match) {
>                 if (!of_device_is_available(np))
>                         continue;
> 
>                 if (property && !of_get_property(np, property, NULL))
>                         continue;
> 
>                 if (!property && (of_get_property(np, "ti,timer-alwon", NULL) ||
>                                   of_get_property(np, "ti,timer-dsp", NULL) ||
>                                   of_get_property(np, "ti,timer-pwm", NULL) ||
>                                   of_get_property(np, "ti,timer-secure", NULL)))
>                         continue;
> 
>                 of_add_property(np, &device_disabled);
>                 return np;
>         }
> 
>         return NULL;
> }
> 
> I'll patch this up and drop $subject
> 

Ah, good.

I'm seeing the "ti,timer-alwon" property here, we probably need to take
that into account when setting the CLOCK_SOURCE_SUSPEND_NONSTOP flag, if
that isn't how it gets done already.

	Arnd
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