[PATCH 3/5] ARM: dts: rockchip: Add DDR retention/poweroff to rk3288-veyron hogs

[PATCH 3/5] ARM: dts: rockchip: Add DDR retention/poweroff to rk3288-veyron hogs

[Douglas Anderson]

Even though upstream Linux doesn't yet go into deep enough suspend to
get DDR into self refresh, there is no harm in setting these pins up.
They'll only actually do something if we go into a deeper suspend but
leaving them configed always is fine.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi | 4 ++++
 arch/arm/boot/dts/rk3288-veyron.dtsi            | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
index 72c4754032e9..b9cc90f0f25c 100644
--- a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
@@ -229,6 +229,8 @@
 &pinctrl {
 	pinctrl-0 = <
 		/* Common for sleep and wake, but no owners */
+		&ddr0_retention
+		&ddrio_pwroff
 		&global_pwroff
 
 		/* Wake only */
@@ -236,6 +238,8 @@
 	>;
 	pinctrl-1 = <
 		/* Common for sleep and wake, but no owners */
+		&ddr0_retention
+		&ddrio_pwroff
 		&global_pwroff
 
 		/* Sleep only */
diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 5c67acc3e6d8..279d7f4ecce0 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -451,10 +451,14 @@
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <
 		/* Common for sleep and wake, but no owners */
+		&ddr0_retention
+		&ddrio_pwroff
 		&global_pwroff
 	>;
 	pinctrl-1 = <
 		/* Common for sleep and wake, but no owners */
+		&ddr0_retention
+		&ddrio_pwroff
 		&global_pwroff
 	>;
 
-- 
2.21.0.392.gf8f6787159e-goog

[PATCH 4/5] ARM: dts: rockchip: vcc33_ccd off in suspend for rk3288-veyron-chromebook

[Douglas Anderson]

As per my comments when the device tree for rk3288-veyron-chromebook
first landed:

> Technically I think vcc33_ccd can be off since we have
> 'needs-reset-on-resume' down in the EHCI port (this regulator is for
> the USB webcam that's connected to the EHCI port).
>
>  ...but leaving it on for now seems fine until we get suspend/resume
> more solid.

It's probably about time to do it right.

[1] https://lore.kernel.org/linux-arm-kernel/CAD=FV=U37Yx8Mqk75_x05zxonvdc3qRMhqp8TyTDPWGHqSuRqg@mail.gmail.com/

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
index b9cc90f0f25c..fbef34578100 100644
--- a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
@@ -176,8 +176,7 @@
 			regulator-min-microvolt = <3300000>;
 			regulator-max-microvolt = <3300000>;
 			regulator-state-mem {
-				regulator-on-in-suspend;
-				regulator-suspend-microvolt = <3300000>;
+				regulator-off-in-suspend;
 			};
 		};
 	};
-- 
2.21.0.392.gf8f6787159e-goog

[PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron

[Douglas Anderson]

At some point long long ago the downstream GPU driver would crash if
we turned the GPU off during suspend.  For some context you can see:

https://chromium-review.googlesource.com/#/c/215780/5..6/arch/arm/boot/dts/rk3288-pinky-rev2.dts

At some point in time not too long after that got fixed.

It's unclear why the GPU is left enabled during suspend on the
mainline kernel.  Everything seems fine if I turn this off, so let's
do it.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
---

 arch/arm/boot/dts/rk3288-veyron.dtsi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
index 279d7f4ecce0..1252522392c7 100644
--- a/arch/arm/boot/dts/rk3288-veyron.dtsi
+++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
@@ -217,8 +217,7 @@
 				regulator-max-microvolt = <1250000>;
 				regulator-ramp-delay = <6001>;
 				regulator-state-mem {
-					regulator-on-in-suspend;
-					regulator-suspend-microvolt = <1000000>;
+					regulator-off-in-suspend;
 				};
 			};
 
-- 
2.21.0.392.gf8f6787159e-goog

Re: [PATCH 4/5] ARM: dts: rockchip: vcc33_ccd off in suspend for rk3288-veyron-chromebook

[elaine.zhang]

hi,

在 2019/4/12 上午7:21, Douglas Anderson 写道:
> As per my comments when the device tree for rk3288-veyron-chromebook
> first landed:
>
>> Technically I think vcc33_ccd can be off since we have
>> 'needs-reset-on-resume' down in the EHCI port (this regulator is for
>> the USB webcam that's connected to the EHCI port).
>>
>>   ...but leaving it on for now seems fine until we get suspend/resume
>> more solid.
> It's probably about time to do it right.
>
> [1] https://lore.kernel.org/linux-arm-kernel/CAD=FV=U37Yx8Mqk75_x05zxonvdc3qRMhqp8TyTDPWGHqSuRqg@mail.gmail.com/
>
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
>
>   arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
> index b9cc90f0f25c..fbef34578100 100644
> --- a/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
> +++ b/arch/arm/boot/dts/rk3288-veyron-chromebook.dtsi
> @@ -176,8 +176,7 @@
>   			regulator-min-microvolt = <3300000>;
>   			regulator-max-microvolt = <3300000>;
>   			regulator-state-mem {
> -				regulator-on-in-suspend;
> -				regulator-suspend-microvolt = <3300000>;
> +				regulator-off-in-suspend;
>   			};
>   		};
>   	};

Reviewed-by: Elaine Zhang<zhangqing@rock-chips.com>

Re: [PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron

[elaine.zhang]

hi,

在 2019/4/12 上午7:21, Douglas Anderson 写道:
> At some point long long ago the downstream GPU driver would crash if
> we turned the GPU off during suspend.  For some context you can see:
>
> https://chromium-review.googlesource.com/#/c/215780/5..6/arch/arm/boot/dts/rk3288-pinky-rev2.dts
>
> At some point in time not too long after that got fixed.
>
> It's unclear why the GPU is left enabled during suspend on the
> mainline kernel.  Everything seems fine if I turn this off, so let's
> do it.
>
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
>
>   arch/arm/boot/dts/rk3288-veyron.dtsi | 3 +--
>   1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/arch/arm/boot/dts/rk3288-veyron.dtsi b/arch/arm/boot/dts/rk3288-veyron.dtsi
> index 279d7f4ecce0..1252522392c7 100644
> --- a/arch/arm/boot/dts/rk3288-veyron.dtsi
> +++ b/arch/arm/boot/dts/rk3288-veyron.dtsi
> @@ -217,8 +217,7 @@
>   				regulator-max-microvolt = <1250000>;
>   				regulator-ramp-delay = <6001>;
>   				regulator-state-mem {
> -					regulator-on-in-suspend;
> -					regulator-suspend-microvolt = <1000000>;
> +					regulator-off-in-suspend;
>   				};
>   			};
>   

Reviewed-by: Elaine Zhang<zhangqing@rock-chips.com>

Re: [PATCH 3/5] ARM: dts: rockchip: Add DDR retention/poweroff to rk3288-veyron hogs

[Heiko Stübner]

Am Freitag, 12. April 2019, 01:21:55 CEST schrieb Douglas Anderson:
> Even though upstream Linux doesn't yet go into deep enough suspend to
> get DDR into self refresh, there is no harm in setting these pins up.
> They'll only actually do something if we go into a deeper suspend but
> leaving them configed always is fine.
> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>

applied for 5.2

Thanks
Heiko

Re: [PATCH 4/5] ARM: dts: rockchip: vcc33_ccd off in suspend for rk3288-veyron-chromebook

[Heiko Stübner]

Am Freitag, 12. April 2019, 01:21:56 CEST schrieb Douglas Anderson:
> As per my comments when the device tree for rk3288-veyron-chromebook
> first landed:
> 
> > Technically I think vcc33_ccd can be off since we have
> > 'needs-reset-on-resume' down in the EHCI port (this regulator is for
> > the USB webcam that's connected to the EHCI port).
> >
> >  ...but leaving it on for now seems fine until we get suspend/resume
> > more solid.
> 
> It's probably about time to do it right.
> 
> [1] https://lore.kernel.org/linux-arm-kernel/CAD=FV=U37Yx8Mqk75_x05zxonvdc3qRMhqp8TyTDPWGHqSuRqg@mail.gmail.com/
> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>

applied for 5.2

Thanks
Heiko

Re: [PATCH 5/5] ARM: dts: rockchip: vdd_gpu off in suspend for rk3288-veyron

[Heiko Stübner]

Am Freitag, 12. April 2019, 01:21:57 CEST schrieb Douglas Anderson:
> At some point long long ago the downstream GPU driver would crash if
> we turned the GPU off during suspend.  For some context you can see:
> 
> https://chromium-review.googlesource.com/#/c/215780/5..6/arch/arm/boot/dts/rk3288-pinky-rev2.dts
> 
> At some point in time not too long after that got fixed.
> 
> It's unclear why the GPU is left enabled during suspend on the
> mainline kernel.  Everything seems fine if I turn this off, so let's
> do it.
> 
> Signed-off-by: Douglas Anderson <dianders@chromium.org>

applied for 5.2

Thanks
Heiko