linux-kernel - Re: [PATCH] ARM: dts: Add TMU dt node to monitor the temperature for Exynos3250

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Message-id: <53B23362.7080103@samsung.com>
Date:	Tue, 01 Jul 2014 13:04:50 +0900
From:	Chanwoo Choi <cw00.choi@...sung.com>
To:	Sachin Kamat <spk.linux@...il.com>
Cc:	Kukjin Kim <kgene.kim@...sung.com>,
	Tomasz Figa <t.figa@...sung.com>,
	Ben Dooks <ben-linux@...ff.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Russell King <linux@....linux.org.uk>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: Add TMU dt node to monitor the temperature for
 Exynos3250

Hi Sachin,

On 07/01/2014 12:33 PM, Sachin Kamat wrote:
> Hi Chanwoo,
> 
> On Tue, Jul 1, 2014 at 6:10 AM, Chanwoo Choi <cw00.choi@...sung.com> wrote:
>> This patch add TMU (Thermal Management Unit) dt node to monitor the high
>> temperature for Exynos3250.
>>
>> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
>> Acked-by: Kyungmin Park <kyungmin.park@...sung.com>
>> ---
>> This patch has a dependency on following patch [1]:
>>  [1] https://lkml.org/lkml/2014/6/30/805
>>
>>  arch/arm/boot/dts/exynos3250.dtsi | 10 ++++++++++
>>  1 file changed, 10 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos3250.dtsi b/arch/arm/boot/dts/exynos3250.dtsi
>> index 3660cab..1e566af 100644
>> --- a/arch/arm/boot/dts/exynos3250.dtsi
>> +++ b/arch/arm/boot/dts/exynos3250.dtsi
>> @@ -192,6 +192,16 @@
>>                         status = "disabled";
>>                 };
>>
>> +               tmu: tmu@...C0000 {
>> +                       compatible = "samsung,exynos3250-tmu";
>> +                       interrupt-parent = <&gic>;
>> +                       reg = <0x100C0000 0x100>;
>> +                       interrupts = <0 216 0>;
>> +                       clocks = <&cmu CLK_TMU_APBIF>;
>> +                       clock-names = "tmu_apbif";
>> +                       status = "disabled";
> 
> I don't think there would be any board specific properties needed. Hence
> leave the status as enabled (by deleting the above line).
> 

I think that if specific board need TMU feature, dts file for specific board
should include tmu dt node with 'okay' status. The specific board based on
Exynos3250 might not need TMU feature.

Best Regards,
Chanwoo Choi


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