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@xxxxxxxxxxxxxxx>
> Reported-by: Jon Hunter <jonathanh@xxxxxxxxxx>
> Fixes: 4053aa65c517 ("ARM: tegra: cardhu-a04: Add CPU Operating Performance Points")
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> ---
> 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@xxxxxxxxxx>
--
viresh
