diff mbox series

krzysztof/for-next boot bisection: v5.4-rc1-48-g0bc9c79979ea on peach-pi

Message ID 5d9a8a3c.1c69fb81.14b6f.10d1@mx.google.com
State New
Headers show
Series krzysztof/for-next boot bisection: v5.4-rc1-48-g0bc9c79979ea on peach-pi | expand

Commit Message

kernelci.org bot Oct. 7, 2019, 12:43 a.m. UTC
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This automated bisection report was sent to you on the basis  *
* that you may be involved with the breaking commit it has      *
* found.  No manual investigation has been done to verify it,   *
* and the root cause of the problem may be somewhere else.      *
*                                                               *
* If you do send a fix, please include this trailer:            *
*   Reported-by: "kernelci.org bot" <bot@kernelci.org>          *
*                                                               *
* Hope this helps!                                              *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

krzysztof/for-next boot bisection: v5.4-rc1-48-g0bc9c79979ea on peach-pi

Summary:
  Start:      0bc9c79979ea Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next
  Details:    https://kernelci.org/boot/id/5d9a50af59b5141ce5857c07
  Plain log:  https://storage.kernelci.org//krzysztof/for-next/v5.4-rc1-48-g0bc9c79979ea/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-exynos5800-peach-pi.txt
  HTML log:   https://storage.kernelci.org//krzysztof/for-next/v5.4-rc1-48-g0bc9c79979ea/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-exynos5800-peach-pi.html
  Result:     0899a480ac65 ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800

Checks:
  revert:     PASS
  verify:     PASS

Parameters:
  Tree:       krzysztof
  URL:        https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git
  Branch:     for-next
  Target:     peach-pi
  CPU arch:   arm
  Lab:        lab-collabora
  Compiler:   gcc-8
  Config:     multi_v7_defconfig
  Test suite: boot

Breaking commit found:

-------------------------------------------------------------------------------
commit 0899a480ac658144b1fa351bb880c2858d43f824
Author: Marek Szyprowski <m.szyprowski@samsung.com>
Date:   Thu Oct 3 12:08:14 2019 +0200

    ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800
    
    Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and
    bus wcore and couple their voltage supllies as vdd_arm and vdd_int should
    be in 300mV range.
    
    Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

    [k.konieczny: add missing patch description]
    Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>

    Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

    Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>


-------------------------------------------------------------------------------


Git bisection log:

-------------------------------------------------------------------------------
git bisect start
# good: [2924a93b4c2b1934c0ec59d28f46814a83259f11] Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next
git bisect good 2924a93b4c2b1934c0ec59d28f46814a83259f11
# bad: [0bc9c79979ea0b607a0751968840483fd296f6ef] Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next
git bisect bad 0bc9c79979ea0b607a0751968840483fd296f6ef
# bad: [0899a480ac658144b1fa351bb880c2858d43f824] ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800
git bisect bad 0899a480ac658144b1fa351bb880c2858d43f824
# good: [56c126e87e2980d5e2ca5d77b28899f8521af9d7] ARM: dts: exynos: Rename SysRAM node to "sram"
git bisect good 56c126e87e2980d5e2ca5d77b28899f8521af9d7
# first bad commit: [0899a480ac658144b1fa351bb880c2858d43f824] ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800
-------------------------------------------------------------------------------

Comments

Krzysztof Kozlowski Oct. 7, 2019, 5:09 p.m. UTC | #1
On Mon, 7 Oct 2019 at 02:43, kernelci.org bot <bot@kernelci.org> wrote:
>

> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

> * This automated bisection report was sent to you on the basis  *

> * that you may be involved with the breaking commit it has      *

> * found.  No manual investigation has been done to verify it,   *

> * and the root cause of the problem may be somewhere else.      *

> *                                                               *

> * If you do send a fix, please include this trailer:            *

> *   Reported-by: "kernelci.org bot" <bot@kernelci.org>          *

> *                                                               *

> * Hope this helps!                                              *

> * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

>

> krzysztof/for-next boot bisection: v5.4-rc1-48-g0bc9c79979ea on peach-pi

>

> Summary:

>   Start:      0bc9c79979ea Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next

>   Details:    https://kernelci.org/boot/id/5d9a50af59b5141ce5857c07

>   Plain log:  https://storage.kernelci.org//krzysztof/for-next/v5.4-rc1-48-g0bc9c79979ea/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-exynos5800-peach-pi.txt

>   HTML log:   https://storage.kernelci.org//krzysztof/for-next/v5.4-rc1-48-g0bc9c79979ea/arm/multi_v7_defconfig/gcc-8/lab-collabora/boot-exynos5800-peach-pi.html

>   Result:     0899a480ac65 ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800


Thanks for the report. Marek Szyprowski reported it on last Friday. I
dropped the patch as of now as it exposes some deadlock in regulator
code.

Best regards,
Krzysztof

>

> Checks:

>   revert:     PASS

>   verify:     PASS

>

> Parameters:

>   Tree:       krzysztof

>   URL:        https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux.git

>   Branch:     for-next

>   Target:     peach-pi

>   CPU arch:   arm

>   Lab:        lab-collabora

>   Compiler:   gcc-8

>   Config:     multi_v7_defconfig

>   Test suite: boot

>

> Breaking commit found:

>

> -------------------------------------------------------------------------------

> commit 0899a480ac658144b1fa351bb880c2858d43f824

> Author: Marek Szyprowski <m.szyprowski@samsung.com>

> Date:   Thu Oct 3 12:08:14 2019 +0200

>

>     ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800

>

>     Declare Exynos5422/5800 voltage ranges for opp points for big cpu core and

>     bus wcore and couple their voltage supllies as vdd_arm and vdd_int should

>     be in 300mV range.

>

>     Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>

>     [k.konieczny: add missing patch description]

>     Signed-off-by: Kamil Konieczny <k.konieczny@partner.samsung.com>

>     Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>

>     Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

>

> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi

> index 2c131ad78c09..d08101b1018c 100644

> --- a/arch/arm/boot/dts/exynos5420.dtsi

> +++ b/arch/arm/boot/dts/exynos5420.dtsi

> @@ -48,62 +48,62 @@

>

>                 opp-1800000000 {

>                         opp-hz = /bits/ 64 <1800000000>;

> -                       opp-microvolt = <1250000>;

> +                       opp-microvolt = <1250000 1250000 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1700000000 {

>                         opp-hz = /bits/ 64 <1700000000>;

> -                       opp-microvolt = <1212500>;

> +                       opp-microvolt = <1212500 1212500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1600000000 {

>                         opp-hz = /bits/ 64 <1600000000>;

> -                       opp-microvolt = <1175000>;

> +                       opp-microvolt = <1175000 1175000 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1500000000 {

>                         opp-hz = /bits/ 64 <1500000000>;

> -                       opp-microvolt = <1137500>;

> +                       opp-microvolt = <1137500 1137500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1400000000 {

>                         opp-hz = /bits/ 64 <1400000000>;

> -                       opp-microvolt = <1112500>;

> +                       opp-microvolt = <1112500 1112500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1300000000 {

>                         opp-hz = /bits/ 64 <1300000000>;

> -                       opp-microvolt = <1062500>;

> +                       opp-microvolt = <1062500 1062500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1200000000 {

>                         opp-hz = /bits/ 64 <1200000000>;

> -                       opp-microvolt = <1037500>;

> +                       opp-microvolt = <1037500 1037500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1100000000 {

>                         opp-hz = /bits/ 64 <1100000000>;

> -                       opp-microvolt = <1012500>;

> +                       opp-microvolt = <1012500 1012500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-1000000000 {

>                         opp-hz = /bits/ 64 <1000000000>;

> -                       opp-microvolt = < 987500>;

> +                       opp-microvolt = < 987500 987500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-900000000 {

>                         opp-hz = /bits/ 64 <900000000>;

> -                       opp-microvolt = < 962500>;

> +                       opp-microvolt = < 962500 962500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-800000000 {

>                         opp-hz = /bits/ 64 <800000000>;

> -                       opp-microvolt = < 937500>;

> +                       opp-microvolt = < 937500 937500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>                 opp-700000000 {

>                         opp-hz = /bits/ 64 <700000000>;

> -                       opp-microvolt = < 912500>;

> +                       opp-microvolt = < 912500 912500 1500000>;

>                         clock-latency-ns = <140000>;

>                 };

>         };

> @@ -1097,23 +1097,23 @@

>

>                         opp00 {

>                                 opp-hz = /bits/ 64 <84000000>;

> -                               opp-microvolt = <925000>;

> +                               opp-microvolt = <925000 925000 1400000>;

>                         };

>                         opp01 {

>                                 opp-hz = /bits/ 64 <111000000>;

> -                               opp-microvolt = <950000>;

> +                               opp-microvolt = <950000 950000 1400000>;

>                         };

>                         opp02 {

>                                 opp-hz = /bits/ 64 <222000000>;

> -                               opp-microvolt = <950000>;

> +                               opp-microvolt = <950000 950000 1400000>;

>                         };

>                         opp03 {

>                                 opp-hz = /bits/ 64 <333000000>;

> -                               opp-microvolt = <950000>;

> +                               opp-microvolt = <950000 950000 1400000>;

>                         };

>                         opp04 {

>                                 opp-hz = /bits/ 64 <400000000>;

> -                               opp-microvolt = <987500>;

> +                               opp-microvolt = <987500 987500 1400000>;

>                         };

>                 };

>

> diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi

> index 829147e320e0..9b8de61b0385 100644

> --- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi

> +++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi

> @@ -524,6 +524,8 @@

>                                 regulator-max-microvolt = <1400000>;

>                                 regulator-always-on;

>                                 regulator-boot-on;

> +                               regulator-coupled-with = <&buck2_reg>;

> +                               regulator-coupled-max-spread = <300000>;

>

>                                 regulator-state-mem {

>                                         regulator-off-in-suspend;

> @@ -544,6 +546,8 @@

>                                 regulator-max-microvolt = <1500000>;

>                                 regulator-always-on;

>                                 regulator-boot-on;

> +                               regulator-coupled-with = <&buck3_reg>;

> +                               regulator-coupled-max-spread = <300000>;

>

>                                 regulator-state-mem {

>                                         regulator-off-in-suspend;

> diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts

> index 60ca3d685247..c1e38139ce4f 100644

> --- a/arch/arm/boot/dts/exynos5800-peach-pi.dts

> +++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts

> @@ -257,6 +257,8 @@

>                                 regulator-always-on;

>                                 regulator-boot-on;

>                                 regulator-ramp-delay = <12500>;

> +                               regulator-coupled-with = <&buck3_reg>;

> +                               regulator-coupled-max-spread = <300000>;

>                                 regulator-state-mem {

>                                         regulator-off-in-suspend;

>                                 };

> @@ -269,6 +271,8 @@

>                                 regulator-always-on;

>                                 regulator-boot-on;

>                                 regulator-ramp-delay = <12500>;

> +                               regulator-coupled-with = <&buck2_reg>;

> +                               regulator-coupled-max-spread = <300000>;

>                                 regulator-state-mem {

>                                         regulator-off-in-suspend;

>                                 };

> diff --git a/arch/arm/boot/dts/exynos5800.dtsi b/arch/arm/boot/dts/exynos5800.dtsi

> index de639eecc5c9..27789f5f9798 100644

> --- a/arch/arm/boot/dts/exynos5800.dtsi

> +++ b/arch/arm/boot/dts/exynos5800.dtsi

> @@ -22,61 +22,61 @@

>

>  &cluster_a15_opp_table {

>         opp-1700000000 {

> -               opp-microvolt = <1250000>;

> +               opp-microvolt = <1250000 1250000 1500000>;

>         };

>         opp-1600000000 {

> -               opp-microvolt = <1250000>;

> +               opp-microvolt = <1250000 1250000 1500000>;

>         };

>         opp-1500000000 {

> -               opp-microvolt = <1100000>;

> +               opp-microvolt = <1100000 1100000 1500000>;

>         };

>         opp-1400000000 {

> -               opp-microvolt = <1100000>;

> +               opp-microvolt = <1100000 1100000 1500000>;

>         };

>         opp-1300000000 {

> -               opp-microvolt = <1100000>;

> +               opp-microvolt = <1100000 1100000 1500000>;

>         };

>         opp-1200000000 {

> -               opp-microvolt = <1000000>;

> +               opp-microvolt = <1000000 1000000 1500000>;

>         };

>         opp-1100000000 {

> -               opp-microvolt = <1000000>;

> +               opp-microvolt = <1000000 1000000 1500000>;

>         };

>         opp-1000000000 {

> -               opp-microvolt = <1000000>;

> +               opp-microvolt = <1000000 1000000 1500000>;

>         };

>         opp-900000000 {

> -               opp-microvolt = <1000000>;

> +               opp-microvolt = <1000000 1000000 1500000>;

>         };

>         opp-800000000 {

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>         };

>         opp-700000000 {

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>         };

>         opp-600000000 {

>                 opp-hz = /bits/ 64 <600000000>;

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>                 clock-latency-ns = <140000>;

>         };

>         opp-500000000 {

>                 opp-hz = /bits/ 64 <500000000>;

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>                 clock-latency-ns = <140000>;

>         };

>         opp-400000000 {

>                 opp-hz = /bits/ 64 <400000000>;

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>                 clock-latency-ns = <140000>;

>         };

>         opp-300000000 {

>                 opp-hz = /bits/ 64 <300000000>;

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>                 clock-latency-ns = <140000>;

>         };

>         opp-200000000 {

>                 opp-hz = /bits/ 64 <200000000>;

> -               opp-microvolt = <900000>;

> +               opp-microvolt = <900000 900000 1500000>;

>                 clock-latency-ns = <140000>;

>         };

>  };

> -------------------------------------------------------------------------------

>

>

> Git bisection log:

>

> -------------------------------------------------------------------------------

> git bisect start

> # good: [2924a93b4c2b1934c0ec59d28f46814a83259f11] Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next

> git bisect good 2924a93b4c2b1934c0ec59d28f46814a83259f11

> # bad: [0bc9c79979ea0b607a0751968840483fd296f6ef] Merge branch 'for-v5.5/memory-samsung-dmc-dt' into for-next

> git bisect bad 0bc9c79979ea0b607a0751968840483fd296f6ef

> # bad: [0899a480ac658144b1fa351bb880c2858d43f824] ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800

> git bisect bad 0899a480ac658144b1fa351bb880c2858d43f824

> # good: [56c126e87e2980d5e2ca5d77b28899f8521af9d7] ARM: dts: exynos: Rename SysRAM node to "sram"

> git bisect good 56c126e87e2980d5e2ca5d77b28899f8521af9d7

> # first bad commit: [0899a480ac658144b1fa351bb880c2858d43f824] ARM: dts: exynos: Add initial data for coupled regulators for Exynos5422/5800

> -------------------------------------------------------------------------------
diff mbox series

Patch

diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 2c131ad78c09..d08101b1018c 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -48,62 +48,62 @@ 
 
 		opp-1800000000 {
 			opp-hz = /bits/ 64 <1800000000>;
-			opp-microvolt = <1250000>;
+			opp-microvolt = <1250000 1250000 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1700000000 {
 			opp-hz = /bits/ 64 <1700000000>;
-			opp-microvolt = <1212500>;
+			opp-microvolt = <1212500 1212500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1600000000 {
 			opp-hz = /bits/ 64 <1600000000>;
-			opp-microvolt = <1175000>;
+			opp-microvolt = <1175000 1175000 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1500000000 {
 			opp-hz = /bits/ 64 <1500000000>;
-			opp-microvolt = <1137500>;
+			opp-microvolt = <1137500 1137500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1400000000 {
 			opp-hz = /bits/ 64 <1400000000>;
-			opp-microvolt = <1112500>;
+			opp-microvolt = <1112500 1112500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1300000000 {
 			opp-hz = /bits/ 64 <1300000000>;
-			opp-microvolt = <1062500>;
+			opp-microvolt = <1062500 1062500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1200000000 {
 			opp-hz = /bits/ 64 <1200000000>;
-			opp-microvolt = <1037500>;
+			opp-microvolt = <1037500 1037500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1100000000 {
 			opp-hz = /bits/ 64 <1100000000>;
-			opp-microvolt = <1012500>;
+			opp-microvolt = <1012500 1012500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-1000000000 {
 			opp-hz = /bits/ 64 <1000000000>;
-			opp-microvolt = < 987500>;
+			opp-microvolt = < 987500 987500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-900000000 {
 			opp-hz = /bits/ 64 <900000000>;
-			opp-microvolt = < 962500>;
+			opp-microvolt = < 962500 962500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-800000000 {
 			opp-hz = /bits/ 64 <800000000>;
-			opp-microvolt = < 937500>;
+			opp-microvolt = < 937500 937500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 		opp-700000000 {
 			opp-hz = /bits/ 64 <700000000>;
-			opp-microvolt = < 912500>;
+			opp-microvolt = < 912500 912500 1500000>;
 			clock-latency-ns = <140000>;
 		};
 	};
@@ -1097,23 +1097,23 @@ 
 
 			opp00 {
 				opp-hz = /bits/ 64 <84000000>;
-				opp-microvolt = <925000>;
+				opp-microvolt = <925000 925000 1400000>;
 			};
 			opp01 {
 				opp-hz = /bits/ 64 <111000000>;
-				opp-microvolt = <950000>;
+				opp-microvolt = <950000 950000 1400000>;
 			};
 			opp02 {
 				opp-hz = /bits/ 64 <222000000>;
-				opp-microvolt = <950000>;
+				opp-microvolt = <950000 950000 1400000>;
 			};
 			opp03 {
 				opp-hz = /bits/ 64 <333000000>;
-				opp-microvolt = <950000>;
+				opp-microvolt = <950000 950000 1400000>;
 			};
 			opp04 {
 				opp-hz = /bits/ 64 <400000000>;
-				opp-microvolt = <987500>;
+				opp-microvolt = <987500 987500 1400000>;
 			};
 		};
 
diff --git a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
index 829147e320e0..9b8de61b0385 100644
--- a/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
+++ b/arch/arm/boot/dts/exynos5422-odroid-core.dtsi
@@ -524,6 +524,8 @@ 
 				regulator-max-microvolt = <1400000>;
 				regulator-always-on;
 				regulator-boot-on;
+				regulator-coupled-with = <&buck2_reg>;
+				regulator-coupled-max-spread = <300000>;
 
 				regulator-state-mem {
 					regulator-off-in-suspend;
@@ -544,6 +546,8 @@ 
 				regulator-max-microvolt = <1500000>;
 				regulator-always-on;
 				regulator-boot-on;
+				regulator-coupled-with = <&buck3_reg>;
+				regulator-coupled-max-spread = <300000>;
 
 				regulator-state-mem {
 					regulator-off-in-suspend;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 60ca3d685247..c1e38139ce4f 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -257,6 +257,8 @@ 
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-ramp-delay = <12500>;
+				regulator-coupled-with = <&buck3_reg>;
+				regulator-coupled-max-spread = <300000>;
 				regulator-state-mem {
 					regulator-off-in-suspend;
 				};
@@ -269,6 +271,8 @@ 
 				regulator-always-on;
 				regulator-boot-on;
 				regulator-ramp-delay = <12500>;
+				regulator-coupled-with = <&buck2_reg>;
+				regulator-coupled-max-spread = <300000>;
 				regulator-state-mem {
 					regulator-off-in-suspend;
 				};
diff --git a/arch/arm/boot/dts/exynos5800.dtsi b/arch/arm/boot/dts/exynos5800.dtsi
index de639eecc5c9..27789f5f9798 100644
--- a/arch/arm/boot/dts/exynos5800.dtsi
+++ b/arch/arm/boot/dts/exynos5800.dtsi
@@ -22,61 +22,61 @@ 
 
 &cluster_a15_opp_table {
 	opp-1700000000 {
-		opp-microvolt = <1250000>;
+		opp-microvolt = <1250000 1250000 1500000>;
 	};
 	opp-1600000000 {
-		opp-microvolt = <1250000>;
+		opp-microvolt = <1250000 1250000 1500000>;
 	};
 	opp-1500000000 {
-		opp-microvolt = <1100000>;
+		opp-microvolt = <1100000 1100000 1500000>;
 	};
 	opp-1400000000 {
-		opp-microvolt = <1100000>;
+		opp-microvolt = <1100000 1100000 1500000>;
 	};
 	opp-1300000000 {
-		opp-microvolt = <1100000>;
+		opp-microvolt = <1100000 1100000 1500000>;
 	};
 	opp-1200000000 {
-		opp-microvolt = <1000000>;
+		opp-microvolt = <1000000 1000000 1500000>;
 	};
 	opp-1100000000 {
-		opp-microvolt = <1000000>;
+		opp-microvolt = <1000000 1000000 1500000>;
 	};
 	opp-1000000000 {
-		opp-microvolt = <1000000>;
+		opp-microvolt = <1000000 1000000 1500000>;
 	};
 	opp-900000000 {
-		opp-microvolt = <1000000>;
+		opp-microvolt = <1000000 1000000 1500000>;
 	};
 	opp-800000000 {
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 	};
 	opp-700000000 {
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 	};
 	opp-600000000 {
 		opp-hz = /bits/ 64 <600000000>;
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 		clock-latency-ns = <140000>;
 	};
 	opp-500000000 {
 		opp-hz = /bits/ 64 <500000000>;
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 		clock-latency-ns = <140000>;
 	};
 	opp-400000000 {
 		opp-hz = /bits/ 64 <400000000>;
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 		clock-latency-ns = <140000>;
 	};
 	opp-300000000 {
 		opp-hz = /bits/ 64 <300000000>;
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 		clock-latency-ns = <140000>;
 	};
 	opp-200000000 {
 		opp-hz = /bits/ 64 <200000000>;
-		opp-microvolt = <900000>;
+		opp-microvolt = <900000 900000 1500000>;
 		clock-latency-ns = <140000>;
 	};
 };