Re: [PATCH 21/27] ARM: dts: exynos3250: Add PMU dt data

[Chanwoo Choi]

Hi,

On 04/10/2014 07:23 PM, Chanho Park wrote:
> Hi,
> 
>> -----Original Message-----
>> From: linux-arm-kernel [mailto:linux-arm-kernel-
>> bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Chanwoo Choi
>> Sent: Thursday, April 10, 2014 7:06 PM
>> To: kgene.kim@xxxxxxxxxxx; t.figa@xxxxxxxxxxx; linux-samsung-
>> soc@xxxxxxxxxxxxxxx
>> Cc: hyunhee.kim@xxxxxxxxxxx; sw0312.kim@xxxxxxxxxxx; linux-
>> kernel@xxxxxxxxxxxxxxx; yj44.cho@xxxxxxxxxxx; inki.dae@xxxxxxxxxxx;
>> cw00.choi@xxxxxxxxxxx; kyungmin.park@xxxxxxxxxxx; linux-arm-
>> kernel@xxxxxxxxxxxxxxxxxxx
>> Subject: [PATCH 21/27] ARM: dts: exynos3250: Add PMU dt data
>>
>> From: Hyunhee Kim <hyunhee.kim@xxxxxxxxxxx>
>>
>> ARM CPU has its own PMU (Performance Monitoring Unit). This patch add
>> PMU dt
>> data to support PMU for CPU. Exynos3250 has four PMU interrupts.
>>
>> Signed-off-by: Hyunhee Kim <hyunhee.kim@xxxxxxxxxxx>
>> Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
>> ---
>>  arch/arm/boot/dts/exynos3250.dtsi | 5 +++++
>>  1 file changed, 5 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/exynos3250.dtsi
>> b/arch/arm/boot/dts/exynos3250.dtsi
>> index ceed761..2f0ca32 100644
>> --- a/arch/arm/boot/dts/exynos3250.dtsi
>> +++ b/arch/arm/boot/dts/exynos3250.dtsi
>> @@ -280,4 +280,9 @@
>>  		pinctrl-0 = <&i2c7_bus>;
>>  		status = "disabled";
>>  	};
>> +
>> +	pmu {
>> +		compatible = "arm,cortex-a7-pmu";
>> +		interrupts = <0 18 0>, <0 19 0>, <0 20 0>, <0 21 0>;
>> +	};
> 
> As I know, the exynos3250 has two CPU cores. Why does it have four pmu
> interrupts?
> IMO it is sufficient it has only two interrupts.

OK, I'll fix it using only two interrupt for dual-core.

Best Regards,
Chanwoo Choi
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