linux-kernel - Re: [PATCH v1 1/5] dt-bindings: display: tegra: Add actmon information

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Message-ID: <34kg2aoaeem3bjqh6vli43hc63tvfx7uumkmkre3wkvek2neyu@jhj5n3om7vzd>
Date: Fri, 13 Dec 2024 11:44:05 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Johnny Liu <johnliu@...dia.com>
Cc: thierry.reding@...il.com, jonathanh@...dia.com, skomatineni@...dia.com, 
	luca.ceresoli@...tlin.com, mperttunen@...dia.com, maarten.lankhorst@...ux.intel.com, 
	mripard@...nel.org, tzimmermann@...e.de, airlied@...il.com, simona@...ll.ch, 
	robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	linux-media@...r.kernel.org, linux-tegra@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 1/5] dt-bindings: display: tegra: Add actmon
 information

On Tue, Dec 10, 2024 at 09:45:50AM -0800, Johnny Liu wrote:
> An activity monitor (actmon) is used to measure the device runtime
> utilization to help drive software power management policies.
> 
> Extend the reg space to include actmon aperture for actmon configuration
> through host1x.

We kind of see that from the diff. Say what we do not see, e.g. ABI
impact or why this is flexible/optional for existing devices.

Best regards,
Krzysztof