Received-SPF: pass (google.com: domain of linux-kernel+bounces-31443-linux.lists.archive=gmail.com@vger.kernel.org designates 147.75.80.249 as permitted sender) client-ip=147.75.80.249;
Date: Fri, 19 Jan 2024 18:54:05 +0100
From: Oleksij Rempel <o.rempel@pengutronix.de>
To: Rob Herring <robh@kernel.org>
Cc: Sebastian Reichel <sre@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	kernel@pengutronix.de, linux-kernel@vger.kernel.org,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Zhang Rui <rui.zhang@intel.com>, Lukasz Luba <lukasz.luba@arm.com>,
	linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
	=?utf-8?B?U8O4cmVu?= Andersen <san@skov.dk>
Subject: Re: [RFC PATCH v1 1/7] dt-bindings: power: reset: add generic PSCR
 binding trackers
Message-ID: <20240119175405.GA163482@pengutronix.de>
References: <20240119132521.3609945-1-o.rempel@pengutronix.de>
 <20240119132521.3609945-2-o.rempel@pengutronix.de>
 <20240119172838.GA460212-robh@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <20240119172838.GA460212-robh@kernel.org>
User-Agent: Mutt/1.10.1 (2018-07-13)

On Fri, Jan 19, 2024 at 11:28:38AM -0600, Rob Herring wrote:
> On Fri, Jan 19, 2024 at 02:25:15PM +0100, Oleksij Rempel wrote:
> > Add binding for Power State Change Reason (PSCR) subsystem
> 
> Why? 
> 
> How is this different from the reboot reason binding?

I was not able to find "reboot reason", you probably refer to "reboot
mode".

Reboot Mode:
 Purpose: Dictates how the system should reboot (e.g., normal, recovery,
   bootloader).
 Usage: Provides instructions for the next boot mode.
 Scenario: Utilized in planned reboots or software-triggered reset scenarios.

PSCR (Power State Change Reasons):
 Purpose: Logs the reason behind a power state change (e.g., voltage drop,
   over-temperature).
 Usage: Used for rapid logging and post-event analysis, potentially informing
   automatic decision-making in subsequent boots.
 Scenario: Critical in abrupt power-down situations where immediate, detailed
   decision-making is not possible.

Regards,
Oleksij
-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |