linux-kernel - Re: [PATCH 3/3] arm64: dts: rockchip: Add the needed timer for rk3368 SoC

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Date:	Fri, 18 Sep 2015 09:16:53 +0800
From:	Caesar Wang <caesar.upstream@...il.com>
To:	Heiko Stübner <heiko@...ech.de>
CC:	Daniel Lezcano <daniel.lezcano@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will.deacon@....com>, devicetree@...r.kernel.org,
	Kumar Gala <galak@...eaurora.org>,
	linux-kernel@...r.kernel.org,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	linux-rockchip@...ts.infradead.org,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Olof Johansson <olof@...om.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 3/3] arm64: dts: rockchip: Add the needed timer for rk3368
 SoC



在 2015年09月18日 03:01, Heiko Stübner 写道:
> Am Donnerstag, 17. September 2015, 15:51:12 schrieb Caesar Wang:
>> There is a need of a broadcast timer in this case to ensure proper
>> wakeup when the cpus are in sleep mode and a timer expires.
>>
>> Signed-off-by: Caesar Wang <wxt@...k-chips.com>
>> ---
>>
>>   arch/arm64/boot/dts/rockchip/rk3368.dtsi | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
>> b/arch/arm64/boot/dts/rockchip/rk3368.dtsi index a712bea..99edbaa 100644
>> --- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
>> +++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
>> @@ -214,6 +214,12 @@
>>   			(GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_HIGH)>;
>>   	};
>>
>> +	timer@...10000 {
>> +		compatible = "rockchip,rk3288-timer";
> you probably want a
> 		compatible = "rockchip,rk3368-timer", "rockchip,rk3288-timer";

Done.

More consideration for the future.
Although the "rk3288-timer" is working for 3368, agreed to add the 
'rk3368-timer' for the rk3368-spec  timer in the future.

>
>> +		reg = <0x0 0xff810000 0x0 0x20>;
>> +		interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
>> +	};
>> +
>>   	xin24m: oscillator {
>>   		compatible = "fixed-clock";
>>   		clock-frequency = <24000000>;
>
>
>
>
> -- 
> Thanks,
> Caesar
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