linux-kernel - Re: [PATCH] ARM: tegra: Populate OPP table for Tegra20 Ventana

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Message-ID: <ea73403a-a248-cd2e-b0af-aeb246801054@gmail.com>
Date:   Thu, 12 Nov 2020 15:11:29 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Jon Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] ARM: tegra: Populate OPP table for Tegra20 Ventana

11.11.2020 13:38, Jon Hunter пишет:
> Commit 9ce274630495 ("cpufreq: tegra20: Use generic cpufreq-dt driver
> (Tegra30 supported now)") update the Tegra20 CPUFREQ driver to use the
> generic CPUFREQ device-tree driver. Since this change CPUFREQ support
> on the Tegra20 Ventana platform has been broken because the necessary
> device-tree nodes with the operating point information are not populated
> for this platform. Fix this by updating device-tree for Venata to
> include the operating point informration for Tegra20.
> 
> Fixes: 9ce274630495 ("cpufreq: tegra20: Use generic cpufreq-dt driver (Tegra30 supported now)")
> Cc: stable@...r.kernel.org
> 
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>
> ---
>  arch/arm/boot/dts/tegra20-ventana.dts | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
> index b158771ac0b7..055334ae3d28 100644
> --- a/arch/arm/boot/dts/tegra20-ventana.dts
> +++ b/arch/arm/boot/dts/tegra20-ventana.dts
> @@ -3,6 +3,7 @@
>  
>  #include <dt-bindings/input/input.h>
>  #include "tegra20.dtsi"
> +#include "tegra20-cpu-opp.dtsi"
>  
>  / {
>  	model = "NVIDIA Tegra20 Ventana evaluation board";
> @@ -592,6 +593,16 @@ clk32k_in: clock@0 {
>  		#clock-cells = <0>;
>  	};
>  
> +	cpus {
> +		cpu0: cpu@0 {

I assume you're going to use this cpu0 handle later on.

> +			operating-points-v2 = <&cpu0_opp_table>;
> +		};
> +
> +		cpu@1 {
> +			operating-points-v2 = <&cpu0_opp_table>;
> +		};
> +	};
> +
>  	gpio-keys {
>  		compatible = "gpio-keys";
>  
> 

Reviewed-by: Dmitry Osipenko <digetx@...il.com>