[PATCH] ARM: tegra124: pmu support

[PATCH] ARM: tegra124: pmu support

[Kyle Huey]

This patch modifies the device tree for tegra124 based devices to enable the Cortex A15 PMU.  The interrupt numbers are taken from NVIDIA TRM DP-06905-001_v03p.  This patch was tested on a Jetson TK1.

Signed-off-by: Kyle Huey <khuey-OhBmq/TcCDJWk0Htik3J/w@public.gmane.org>
---
 arch/arm/boot/dts/tegra124.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 4be06c6..9032ccb 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -190,6 +190,14 @@
 		status = "disabled";
 	};
 
+	pmu {
+		compatible = "arm,cortex-a15-pmu";
+		interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	timer@0,60005000 {
 		compatible = "nvidia,tegra124-timer", "nvidia,tegra20-timer";
 		reg = <0x0 0x60005000 0x0 0x400>;
-- 
1.9.1

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Re: [PATCH] ARM: tegra124: pmu support

[Jon Hunter]

Adding linux-tegra ML ...

On 13/06/15 05:21, Kyle Huey wrote:
> This patch modifies the device tree for tegra124 based devices to enable the Cortex A15 PMU.  The interrupt numbers are taken from NVIDIA TRM DP-06905-001_v03p.  This patch was tested on a Jetson TK1.
> 
> Signed-off-by: Kyle Huey <khuey-OhBmq/TcCDJWk0Htik3J/w@public.gmane.org>
> ---
>  arch/arm/boot/dts/tegra124.dtsi | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
> index 4be06c6..9032ccb 100644
> --- a/arch/arm/boot/dts/tegra124.dtsi
> +++ b/arch/arm/boot/dts/tegra124.dtsi
> @@ -190,6 +190,14 @@
>  		status = "disabled";
>  	};
>  
> +	pmu {
> +		compatible = "arm,cortex-a15-pmu";
> +		interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
> +			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
> +	};
> +
>  	timer@0,60005000 {
>  		compatible = "nvidia,tegra124-timer", "nvidia,tegra20-timer";
>  		reg = <0x0 0x60005000 0x0 0x400>;
> 

Acked-by: Jon Hunter <jonathanh-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

Cheers
Jon

Re: [PATCH] ARM: tegra124: pmu support

[Stephen Warren]

On 06/15/2015 10:45 AM, Jon Hunter wrote:
> Adding linux-tegra ML ...

Oh, still none of the Tegra maintainers are CC'd. scripts/get_maintainer.pl.

> On 13/06/15 05:21, Kyle Huey wrote:
>> This patch modifies the device tree for tegra124 based devices to enable the Cortex A15 PMU.  The interrupt numbers are taken from NVIDIA TRM DP-06905-001_v03p.  This patch was tested on a Jetson TK1.
>>
>> Signed-off-by: Kyle Huey <khuey-OhBmq/TcCDJWk0Htik3J/w@public.gmane.org>
>> ---
>>   arch/arm/boot/dts/tegra124.dtsi | 8 ++++++++
>>   1 file changed, 8 insertions(+)
>>
>> diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi

>> +	pmu {
>> +		compatible = "arm,cortex-a15-pmu";
>> +		interrupts = <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>,
>> +			     <GIC_SPI 145 IRQ_TYPE_LEVEL_HIGH>,
>> +			     <GIC_SPI 146 IRQ_TYPE_LEVEL_HIGH>,
>> +			     <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
>> +	};
>> +
>>   	timer@0,60005000 {

This looks like it's sorted in the wrong location. Nodes are currently 
grouped by those with reg property (sorted by reg) and those without a 
reg property (sorted alphabetically).