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Date: Wed, 22 May 2024 10:00:54 -0500
From: "Rob Herring (Arm)" <robh@kernel.org>
To: David Dai <davidai@google.com>
Cc: Will Deacon <will@kernel.org>, Sudeep Holla <sudeep.holla@arm.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Pavan Kondeti <quic_pkondeti@quicinc.com>,
	devicetree@vger.kernel.org,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Viresh Kumar <viresh.kumar@linaro.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Saravana Kannan <saravanak@google.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Oliver Upton <oliver.upton@linux.dev>, linux-pm@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Masami Hiramatsu <mhiramat@google.com>,
	Quentin Perret <qperret@google.com>,
	Gupta Pankaj <pankaj.gupta@amd.com>, Marc Zyngier <maz@kernel.org>,
	Mel Gorman <mgorman@suse.de>,
	"Rafael J. Wysocki" <rafael@kernel.org>, kernel-team@android.com
Subject: Re: [PATCH v6 1/2] dt-bindings: cpufreq: add virtual cpufreq device
Message-ID: <171639005247.3294172.9981807951705426790.robh@kernel.org>
References: <20240521043102.2786284-1-davidai@google.com>
 <20240521043102.2786284-2-davidai@google.com>
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On Mon, 20 May 2024 21:30:51 -0700, David Dai wrote:
> Adding bindings to represent a virtual cpufreq device.
> 
> Virtual machines may expose MMIO regions for a virtual cpufreq device
> for guests to read performance information or to request performance
> selection. The virtual cpufreq device has an individual controller for
> each performance domain. Performance points for a given domain can be
> normalized across all domains for ease of allowing for virtual machines
> to migrate between hosts.
> 
> Co-developed-by: Saravana Kannan <saravanak@google.com>
> Signed-off-by: Saravana Kannan <saravanak@google.com>
> Signed-off-by: David Dai <davidai@google.com>
> ---
>  .../cpufreq/qemu,virtual-cpufreq.yaml         | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/cpufreq/qemu,virtual-cpufreq.yaml
> 

Reviewed-by: Rob Herring (Arm) <robh@kernel.org>