linux-kernel - Re: [PATCH V2 13/15] arm: dts: r8a77xx: Add missing OPP properties for CPUs

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 4 Jun 2018 11:57:44 +0200
From:   Simon Horman <horms@...ge.net.au>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     arm@...nel.org, biju.das@...renesas.com,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
        ionela.voinescu@....com,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        chris.redpath@....com, linux-renesas-soc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2 13/15] arm: dts: r8a77xx: Add missing OPP properties
 for CPUs

On Wed, May 30, 2018 at 10:16:58AM +0530, Viresh Kumar wrote:
> The OPP properties, like "operating-points", should either be present
> for all the CPUs of a cluster or none. If these are present only for a
> subset of CPUs of a cluster then things will start falling apart as soon
> as the CPUs are brought online in a different order. For example, this
> will happen because the operating system looks for such properties in
> the CPU node it is trying to bring up, so that it can create an OPP
> table.
> 
> Add such missing properties.
> 
> Fix other missing properties (like, clock latency, voltage tolerance,
> etc) as well to make it all work.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>

Thanks, I took the liberty of changing the prefix of this patch to
"ARM: dts: r8a77(43|9[013]):" when applying this patch.