linux-kernel - Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings

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Date:	Tue, 2 Feb 2016 12:48:28 +0000
From:	Alexey Brodkin <Alexey.Brodkin@...opsys.com>
To:	Vineet Gupta <Vineet.Gupta1@...opsys.com>
CC:	"robh@...nel.org" <robh@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"daniel.lezcano@...aro.org" <daniel.lezcano@...aro.org>,
	"noamc@...hip.com" <noamc@...hip.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-snps-arc@...ts.infradead.org" 
	<linux-snps-arc@...ts.infradead.org>
Subject: Re: [PATCH 2/9] ARC: [dts] Introduce Timer bindings

Hi Vineet,

On Tue, 2016-02-02 at 16:28 +0530, Vineet Gupta wrote:
> ARC Timers have historically been probed directly.
> As precursor to start probing Timers thru DT introduce these bindings
> 
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> Cc: Rob Herring <robh@...nel.org>
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Vineet Gupta <vgupta@...opsys.com>
> ---

[snip]

> +Required properties:
> +
> +- compatible : should be "snps,arc-timer0"
> +- interrupts : single Interrupt going into parent intc
> +	       (16 for ARCHS cores, 3 for ARC700 cores)
> +- clocks     : phandle to the source clock
> +
> +Optional properties:
> +
> +- interrupt-parent : phandle to parent intc
> +
> +Example:
> +
> +	timer0: timer_clkevt {
> +		compatible = "snps,arc-timer0";
> +		interrupts = <3>;
> +		interrupt-parent = <&core_intc>;
> +		clocks = <&timer0_clk>;

Even though this is an example maybe we may
use the same "core_clk" as in real .dts below?

-Alexey