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

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Date:   Thu, 12 Nov 2020 12:52:39 +0000
From:   Jon Hunter <jonathanh@...dia.com>
To:     Dmitry Osipenko <digetx@...il.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


On 12/11/2020 12:11, Dmitry Osipenko wrote:
> 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.

Opps, I will remove that.

> 
>> +			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>
> 

Thanks!
Jon

-- 
nvpublic