linux-kernel - Re: [RFC v2 1/3] cpufreq: ti-cpufreq: add support for omap34xx and omap36xx

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Message-ID: <20190906030158.leuumg7rwsvowwfx@vireshk-i7>
Date:   Fri, 6 Sep 2019 08:31:58 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Tony Lindgren <tony@...mide.com>
Cc:     "H. Nikolaus Schaller" <hns@...delico.com>,
        Benoît Cousson <bcousson@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Adam Ford <aford173@...il.com>,
        André Roth <neolynx@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        letux-kernel@...nphoenux.org, kernel@...a-handheld.com
Subject: Re: [RFC v2 1/3] cpufreq: ti-cpufreq: add support for omap34xx and
 omap36xx

On 05-09-19, 07:32, Tony Lindgren wrote:
> * H. Nikolaus Schaller <hns@...delico.com> [190904 08:54]:
> > This adds code and tables to read the silicon revision and
> > eFuse (speed binned / 720 MHz grade) bits for selecting
> > opp-v2 table entries.
> > 
> > Since these bits are not always part of the syscon register
> > range (like for am33xx, am43, dra7), we add code to directly
> > read the register values using ioremap() if syscon access fails.
> 
> This is nice :) Seems to work for me based on a quick test
> on at least omap36xx.
> 
> Looks like n900 produces the following though:
> 
> core: _opp_supported_by_regulators: OPP minuV: 1270000 maxuV: 1270000, not supported by regulator
> cpu cpu0: _opp_add: OPP not supported by regulators (550000000)

That's a DT thing I believe where the voltage doesn't fit what the
regulator can support.

> But presumably that can be further patched. So for this
> patch:
> 
> Acked-by: Tony Lindgren <tony@...mide.com>

Thanks.

-- 
viresh