diff mbox series

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

Message ID 1542823301-23563-7-git-send-email-l.luba@partner.samsung.com (mailing list archive)
State Accepted
Commit c9cbfd623d8bcfbbe9a37be13b247fa0ce8e92e7
Headers show
Series devfreq: handle suspend/resume | expand

Commit Message

Lukasz Luba Nov. 21, 2018, 6:01 p.m. UTC
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@math.uni-bielefeld.de>
Suggested-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
 arch/arm/boot/dts/exynos4210.dtsi | 2 ++
 arch/arm/boot/dts/exynos4412.dtsi | 2 ++
 2 files changed, 4 insertions(+)

Comments

Chanwoo Choi Nov. 22, 2018, 3:09 a.m. UTC | #1
Hi,

On 2018년 11월 22일 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@math.uni-bielefeld.de>
> Suggested-by: Chanwoo Choi <cw00.choi@samsung.com>
> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
> ---
>  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@samsung.com>

> 
> 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;
>  			};
>  		};
>  
>
Lukasz Luba Nov. 22, 2018, 11:04 a.m. UTC | #2
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 2018년 11월 22일 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@math.uni-bielefeld.de>
>> Suggested-by: Chanwoo Choi <cw00.choi@samsung.com>
>> Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
>> ---
>>   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@samsung.com>
> 
>>
>> 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
diff mbox series

Patch

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;
 			};
 		};