linux-kernel - RE: [PATCH 8/8] arm64: defconfig: Enable NVIDIA TEGRA410 PMU

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Message-ID:
 <SJ0PR12MB56763B5860CE8E93BEB4FF49A062A@SJ0PR12MB5676.namprd12.prod.outlook.com>
Date: Tue, 10 Feb 2026 17:42:11 +0000
From: Besar Wicaksono <bwicaksono@...dia.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, "will@...nel.org"
	<will@...nel.org>, "suzuki.poulose@....com" <suzuki.poulose@....com>,
	"robin.murphy@....com" <robin.murphy@....com>, "ilkka@...amperecomputing.com"
	<ilkka@...amperecomputing.com>
CC: "linux-arm-kernel@...ts.infradead.org"
	<linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-tegra@...r.kernel.org"
	<linux-tegra@...r.kernel.org>, "mark.rutland@....com" <mark.rutland@....com>,
	Thierry Reding <treding@...dia.com>, Jon Hunter <jonathanh@...dia.com>,
	Vikram Sethi <vsethi@...dia.com>, Rich Wiley <rwiley@...dia.com>, Shanker
 Donthineni <sdonthineni@...dia.com>, Sean Kelley <skelley@...dia.com>, Yifei
 Wan <YWan@...dia.com>, Matt Ochs <mochs@...dia.com>, Nirmoy Das
	<nirmoyd@...dia.com>
Subject: RE: [PATCH 8/8] arm64: defconfig: Enable NVIDIA TEGRA410 PMU



> -----Original Message-----
> From: Krzysztof Kozlowski <krzk@...nel.org>
> Sent: Tuesday, February 10, 2026 10:15 AM
> To: Besar Wicaksono <bwicaksono@...dia.com>; will@...nel.org;
> suzuki.poulose@....com; robin.murphy@....com;
> ilkka@...amperecomputing.com
> Cc: linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org; linux-
> tegra@...r.kernel.org; mark.rutland@....com; Thierry Reding
> <treding@...dia.com>; Jon Hunter <jonathanh@...dia.com>; Vikram Sethi
> <vsethi@...dia.com>; Rich Wiley <rwiley@...dia.com>; Shanker Donthineni
> <sdonthineni@...dia.com>; Sean Kelley <skelley@...dia.com>; Yifei Wan
> <YWan@...dia.com>; Matt Ochs <mochs@...dia.com>; Nirmoy Das
> <nirmoyd@...dia.com>
> Subject: Re: [PATCH 8/8] arm64: defconfig: Enable NVIDIA TEGRA410 PMU
> 
> External email: Use caution opening links or attachments
> 
> 
> On 10/02/2026 17:05, Besar Wicaksono wrote:
> >
> >
> >> -----Original Message-----
> >> From: Krzysztof Kozlowski <krzk@...nel.org>
> >> Sent: Sunday, February 8, 2026 5:18 AM
> >> To: Besar Wicaksono <bwicaksono@...dia.com>; will@...nel.org;
> >> suzuki.poulose@....com; robin.murphy@....com;
> >> ilkka@...amperecomputing.com
> >> Cc: linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> linux-
> >> tegra@...r.kernel.org; mark.rutland@....com; Thierry Reding
> >> <treding@...dia.com>; Jon Hunter <jonathanh@...dia.com>; Vikram Sethi
> >> <vsethi@...dia.com>; Rich Wiley <rwiley@...dia.com>; Shanker
> Donthineni
> >> <sdonthineni@...dia.com>; Sean Kelley <skelley@...dia.com>; Yifei Wan
> >> <ywan@...dia.com>; Matt Ochs <mochs@...dia.com>; Nirmoy Das
> >> <nirmoyd@...dia.com>
> >> Subject: Re: [PATCH 8/8] arm64: defconfig: Enable NVIDIA TEGRA410 PMU
> >>
> >> External email: Use caution opening links or attachments
> >>
> >>
> >> On 26/01/2026 19:11, Besar Wicaksono wrote:
> >>> Enable driver for NVIDIA TEGRA410 CMEM Latency and C2C PMU device.
> >>
> >> Why? Why do we want it? Which *upstream board* uses it?
> >>
> >
> > These are for NVIDIA Vera platform (Tegra410 SoC).
> 
> There is no such board (git grep), but anyway, don't explain it to me.
> Your commit should explain such stuff.
> 

This is a server platform. There is no upstream board using this device currently.
Please let me know if the patch is acceptable and I will update the commit message
with more clarity. Otherwise, I will drop the patch.

Thanks,
Besar