Re: [PATCH 6/6] arm: dts: exynos4: set opp-suspend for DMC and leftbus

From: Lukasz Luba
Date: Thu Nov 22 2018 - 06:04:20 EST


Hi Chanwoo Choi,

Thank you for the review of the patch set.
I will add your suggestions in v2 and add 'Reviewed-by' for the last to
patches.

On 11/22/18 4:09 AM, Chanwoo Choi wrote:
> Hi,
>
> On 2018ë 11ì 22ì 03:01, Lukasz Luba wrote:
>> Mark the state for devfreq device while entring suspend/resume process.
>>
>> The patch draws on Tobias Jakobi's work posted ~2 years ago, who tried to
>> solve issue with devfreq device's frequency during suspend/resume.
>> During the discussion on LKML some corner cases and comments appeared
>> related to the design. This patch address them keeping in mind suggestions
>> from Chanwoo Choi.
>>
>> Suggested-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
>> Suggested-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
>> Signed-off-by: Lukasz Luba <l.luba@xxxxxxxxxxxxxxxxxxx>
>> ---
>> arch/arm/boot/dts/exynos4210.dtsi | 2 ++
>> arch/arm/boot/dts/exynos4412.dtsi | 2 ++
>> 2 files changed, 4 insertions(+)
>
> Looks good to me.
> Reviewed-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
>
>>
>> diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
>> index b6091c2..4429b72 100644
>> --- a/arch/arm/boot/dts/exynos4210.dtsi
>> +++ b/arch/arm/boot/dts/exynos4210.dtsi
>> @@ -298,6 +298,7 @@
>> opp-400000000 {
>> opp-hz = /bits/ 64 <400000000>;
>> opp-microvolt = <1150000>;
>> + opp-suspend;
>> };
>> };
>>
>> @@ -367,6 +368,7 @@
>> };
>> opp-200000000 {
>> opp-hz = /bits/ 64 <200000000>;
>> + opp-suspend;
>> };
>> };
>> };
>> diff --git a/arch/arm/boot/dts/exynos4412.dtsi b/arch/arm/boot/dts/exynos4412.dtsi
>> index 51f72f0..908c0c4 100644
>> --- a/arch/arm/boot/dts/exynos4412.dtsi
>> +++ b/arch/arm/boot/dts/exynos4412.dtsi
>> @@ -432,6 +432,7 @@
>> opp-400000000 {
>> opp-hz = /bits/ 64 <400000000>;
>> opp-microvolt = <1050000>;
>> + opp-suspend;
>> };
>> };
>>
>> @@ -520,6 +521,7 @@
>> opp-200000000 {
>> opp-hz = /bits/ 64 <200000000>;
>> opp-microvolt = <1000000>;
>> + opp-suspend;
>> };
>> };
>>
>>
>
>

Regards,
Lukasz Luba