linux-kernel - Re: [PATCH V2] ARM: dts: omap3: Add cpu trips and cooling map for omap34/36 families

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Message-ID: <20200817215953.59607c11@aktux>
Date:   Mon, 17 Aug 2020 21:59:53 +0200
From:   Andreas Kemnade <andreas@...nade.info>
To:     Adam Ford <aford173@...il.com>
Cc:     linux-omap@...r.kernel.org, aford@...conembedded.com,
        Benoît Cousson 
        <bcousson@...libre.com>, Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, hns@...delico.com
Subject: Re: [PATCH V2] ARM: dts: omap3: Add cpu trips and cooling map for
 omap34/36 families

On Mon, 17 Aug 2020 08:39:31 -0500
Adam Ford <aford173@...il.com> wrote:

> The OMAP3530, OMAP3630, and DM3730 all show thresholds of 90C and 105C
> depending on commercial or industrial temperature ratings.
> 
> This patch expands the thermal information to include the limits of 90
> and 105C for alert and critical.  It sets the coolings-cells for the
> 34xx and 36xx CPU's which both point to omap3-cpu-thermal.dtsi.
> 
> For boards who never use industrial temperatures, these can be
> changed on their respective device trees with something like:
> 
> &cpu_alert0 {
> 	temperature = <85000>; /* millicelsius */
> };
> 
> &cpu_crit {
> 	temperature = <90000>; /* millicelsius */
> };
> 
> OMAP3_THERMAL will need to be enabled.  It is off by default.
> 
hmm, I think the patch for idling core when OMAP3_THERMAL is enabled
got stuck somewhere. It still seems not to work. Shouldn't that patch
be applied first?

Regards,
Andreas