linux-kernel - Re: [PATCH v5 07/11] cpufreq: dt-platdev: Blacklist NVIDIA Tegra20 and Tegra30 SoCs

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Message-ID: <20191216040808.w67jxu7oapxgm7yh@vireshk-i7>
Date:   Mon, 16 Dec 2019 09:38:08 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        Prashant Gaikwad <pgaikwad@...dia.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 07/11] cpufreq: dt-platdev: Blacklist NVIDIA Tegra20
 and Tegra30 SoCs

On 16-12-19, 09:35, Viresh Kumar wrote:
> On 18-11-19, 19:45, Dmitry Osipenko wrote:
> > Both NVIDIA Tegra20 and Tegra30 SoCs should be blacklisted because CPU
> > OPPs use supported_hw and thus platdev isn't suitable for these SoCs.
> > Currently cpufreq-dt driver produces a bit annoying warning splats
> > during boot because valid OPPs are not found, this will be fixed once
> > tegra20-cpufreq driver will be update to support cpufreq-dt. The warnings
> > will also happen on older stable kernels using newer device-trees, thus
> > this patch should be backported to stable kernels as well.
> > 
> > Cc: <stable@...r.kernel.org>
> > Reported-by: Jon Hunter <jonathanh@...dia.com>
> > Fixes: 4053aa65c517 ("ARM: tegra: cardhu-a04: Add CPU Operating Performance Points")
> > Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> > ---
> >  drivers/cpufreq/cpufreq-dt-platdev.c | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
> > index f1d170dcf4d3..aba591d57c67 100644
> > --- a/drivers/cpufreq/cpufreq-dt-platdev.c
> > +++ b/drivers/cpufreq/cpufreq-dt-platdev.c
> > @@ -121,6 +121,8 @@ static const struct of_device_id blacklist[] __initconst = {
> >  	{ .compatible = "mediatek,mt8176", },
> >  	{ .compatible = "mediatek,mt8183", },
> >  
> > +	{ .compatible = "nvidia,tegra20", },
> > +	{ .compatible = "nvidia,tegra30", },
> >  	{ .compatible = "nvidia,tegra124", },
> >  	{ .compatible = "nvidia,tegra210", },
> 
> Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

Oops, pasted the wrong register here :(

Applied. Thanks.

-- 
viresh