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

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Date:   Thu, 5 Sep 2019 07:32:26 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     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>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        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

* 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)

But presumably that can be further patched. So for this
patch:

Acked-by: Tony Lindgren <tony@...mide.com>