1. Patchew
  2. linux
  3. [PATCH v2 0/4] Allwinner H6 GPU devfreq
  4. View patch

[PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP

Clément Péron posted 4 patches 3 years, 3 months ago
There is a newer version of this series
[PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Clément Péron 3 years, 3 months ago 
Enable GPU OPP table for Beelink GS1

Signed-off-by: Clément Péron <peron.clem@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
index 6249e9e02928..20fc0584d1c6 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
@@ -5,6 +5,7 @@
 
 #include "sun50i-h6.dtsi"
 #include "sun50i-h6-cpu-opp.dtsi"
+#include "sun50i-h6-gpu-opp.dtsi"
 
 #include <dt-bindings/gpio/gpio.h>
 
@@ -261,6 +262,7 @@ reg_dcdca: dcdca {
 			};
 
 			reg_dcdcc: dcdcc {
+				regulator-always-on;
 				regulator-enable-ramp-delay = <32000>;
 				regulator-min-microvolt = <810000>;
 				regulator-max-microvolt = <1080000>;
-- 
2.34.1
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Samuel Holland 3 years, 3 months ago 
On 8/21/22 12:30 PM, Clément Péron wrote:
> Enable GPU OPP table for Beelink GS1
> 
> Signed-off-by: Clément Péron <peron.clem@gmail.com>
> ---
>  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> index 6249e9e02928..20fc0584d1c6 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> @@ -5,6 +5,7 @@
>  
>  #include "sun50i-h6.dtsi"
>  #include "sun50i-h6-cpu-opp.dtsi"
> +#include "sun50i-h6-gpu-opp.dtsi"
>  
>  #include <dt-bindings/gpio/gpio.h>
>  
> @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
>  			};
>  
>  			reg_dcdcc: dcdcc {
> +				regulator-always-on;

Why is this necessary? This file already has:

&gpu {
	mali-supply = <&reg_dcdcc>;
	status = "okay";
};

So there is a consumer for this regulator.

Regards,
Samuel

>  				regulator-enable-ramp-delay = <32000>;
>  				regulator-min-microvolt = <810000>;
>  				regulator-max-microvolt = <1080000>;
>
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Clément Péron 3 years, 3 months ago 
Hi Samuel,

On Tue, 23 Aug 2022 at 05:07, Samuel Holland <samuel@sholland.org> wrote:
>
> On 8/21/22 12:30 PM, Clément Péron wrote:
> > Enable GPU OPP table for Beelink GS1
> >
> > Signed-off-by: Clément Péron <peron.clem@gmail.com>
> > ---
> >  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > index 6249e9e02928..20fc0584d1c6 100644
> > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > @@ -5,6 +5,7 @@
> >
> >  #include "sun50i-h6.dtsi"
> >  #include "sun50i-h6-cpu-opp.dtsi"
> > +#include "sun50i-h6-gpu-opp.dtsi"
> >
> >  #include <dt-bindings/gpio/gpio.h>
> >
> > @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
> >                       };
> >
> >                       reg_dcdcc: dcdcc {
> > +                             regulator-always-on;
>
> Why is this necessary? This file already has:

This is a relica from the first serie at this time the OPP doesn't
properly enable the regulator it's now fixed since:
https://patchwork.kernel.org/project/linux-pm/patch/81eb2efeeed1556d124065252f32777838a6d850.1589528491.git.viresh.kumar@linaro.org/

I will drop it.

Thanks for the review.
Regards,
Clement




>
> &gpu {
>         mali-supply = <&reg_dcdcc>;
>         status = "okay";
> };
>
> So there is a consumer for this regulator.
>
> Regards,
> Samuel
>
> >                               regulator-enable-ramp-delay = <32000>;
> >                               regulator-min-microvolt = <810000>;
> >                               regulator-max-microvolt = <1080000>;
> >
>
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Clément Péron 3 years, 3 months ago 
Hi Samuel,

On Sat, 3 Sept 2022 at 20:41, Clément Péron <peron.clem@gmail.com> wrote:
>
> Hi Samuel,
>
> On Tue, 23 Aug 2022 at 05:07, Samuel Holland <samuel@sholland.org> wrote:
> >
> > On 8/21/22 12:30 PM, Clément Péron wrote:
> > > Enable GPU OPP table for Beelink GS1
> > >
> > > Signed-off-by: Clément Péron <peron.clem@gmail.com>
> > > ---
> > >  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
> > >  1 file changed, 2 insertions(+)
> > >
> > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > > index 6249e9e02928..20fc0584d1c6 100644
> > > --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > > @@ -5,6 +5,7 @@
> > >
> > >  #include "sun50i-h6.dtsi"
> > >  #include "sun50i-h6-cpu-opp.dtsi"
> > > +#include "sun50i-h6-gpu-opp.dtsi"
> > >
> > >  #include <dt-bindings/gpio/gpio.h>
> > >
> > > @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
> > >                       };
> > >
> > >                       reg_dcdcc: dcdcc {
> > > +                             regulator-always-on;
> >
> > Why is this necessary? This file already has:
>
> This is a relica from the first serie at this time the OPP doesn't
> properly enable the regulator it's now fixed since:
> https://patchwork.kernel.org/project/linux-pm/patch/81eb2efeeed1556d124065252f32777838a6d850.1589528491.git.viresh.kumar@linaro.org/
>
> I will drop it.

After retesting it, it seems to still no take the regulator and make
my board hang... :(

[   17.698597] sun8i-dw-hdmi 6000000.hdmi: registered DesignWare HDMI
I2C bus driver
[   17.708475] sun4i-drm display-engine: bound 6000000.hdmi (ops
sun8i_dw_hdmi_ops [sun8i_drm_hdmi])
[   17.718350] [drm] Initialized sun4i-drm 1.0.0 20150629 for
display-engine on minor 1
[   17.877443] Console: switching to colour frame buffer device 320x90
[   17.936050] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb
frame buffer device
[   17.961881] platform 5200000.usb: deferred probe pending
>>>> [   31.710731] vdd-gpu: disabling <<<<<




>
> Thanks for the review.
> Regards,
> Clement
>
>
>
>
> >
> > &gpu {
> >         mali-supply = <&reg_dcdcc>;
> >         status = "okay";
> > };
> >
> > So there is a consumer for this regulator.
> >
> > Regards,
> > Samuel
> >
> > >                               regulator-enable-ramp-delay = <32000>;
> > >                               regulator-min-microvolt = <810000>;
> > >                               regulator-max-microvolt = <1080000>;
> > >
> >
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Samuel Holland 3 years, 3 months ago 
On 9/3/22 2:06 PM, Clément Péron wrote:
> Hi Samuel,
> 
> On Sat, 3 Sept 2022 at 20:41, Clément Péron <peron.clem@gmail.com> wrote:
>>
>> Hi Samuel,
>>
>> On Tue, 23 Aug 2022 at 05:07, Samuel Holland <samuel@sholland.org> wrote:
>>>
>>> On 8/21/22 12:30 PM, Clément Péron wrote:
>>>> Enable GPU OPP table for Beelink GS1
>>>>
>>>> Signed-off-by: Clément Péron <peron.clem@gmail.com>
>>>> ---
>>>>  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
>>>>  1 file changed, 2 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
>>>> index 6249e9e02928..20fc0584d1c6 100644
>>>> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
>>>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
>>>> @@ -5,6 +5,7 @@
>>>>
>>>>  #include "sun50i-h6.dtsi"
>>>>  #include "sun50i-h6-cpu-opp.dtsi"
>>>> +#include "sun50i-h6-gpu-opp.dtsi"
>>>>
>>>>  #include <dt-bindings/gpio/gpio.h>
>>>>
>>>> @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
>>>>                       };
>>>>
>>>>                       reg_dcdcc: dcdcc {
>>>> +                             regulator-always-on;
>>>
>>> Why is this necessary? This file already has:
>>
>> This is a relica from the first serie at this time the OPP doesn't
>> properly enable the regulator it's now fixed since:
>> https://patchwork.kernel.org/project/linux-pm/patch/81eb2efeeed1556d124065252f32777838a6d850.1589528491.git.viresh.kumar@linaro.org/

This should have nothing to do with the OPP driver; lima already has a "mali"
regulator consumer that should be enabled whenever the GPU is in use.

_Adding_ a regulator consumer from the OPP driver should not somehow decrease
the refcount.

>> I will drop it.
> 
> After retesting it, it seems to still no take the regulator and make
> my board hang... :(
> 
> [   17.698597] sun8i-dw-hdmi 6000000.hdmi: registered DesignWare HDMI
> I2C bus driver
> [   17.708475] sun4i-drm display-engine: bound 6000000.hdmi (ops
> sun8i_dw_hdmi_ops [sun8i_drm_hdmi])
> [   17.718350] [drm] Initialized sun4i-drm 1.0.0 20150629 for
> display-engine on minor 1
> [   17.877443] Console: switching to colour frame buffer device 320x90
> [   17.936050] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb
> frame buffer device
> [   17.961881] platform 5200000.usb: deferred probe pending
>>>>> [   31.710731] vdd-gpu: disabling <<<<<

Are there any messages from lima, especially about mali-supply? Can you provide
regulators_summary from debugfs?

Regards,
Samuel
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Clément Péron 3 years, 3 months ago 
Hi Samuel,

On Sun, 4 Sept 2022 at 05:32, Samuel Holland <samuel@sholland.org> wrote:
>
> On 9/3/22 2:06 PM, Clément Péron wrote:
> > Hi Samuel,
> >
> > On Sat, 3 Sept 2022 at 20:41, Clément Péron <peron.clem@gmail.com> wrote:
> >>
> >> Hi Samuel,
> >>
> >> On Tue, 23 Aug 2022 at 05:07, Samuel Holland <samuel@sholland.org> wrote:
> >>>
> >>> On 8/21/22 12:30 PM, Clément Péron wrote:
> >>>> Enable GPU OPP table for Beelink GS1
> >>>>
> >>>> Signed-off-by: Clément Péron <peron.clem@gmail.com>
> >>>> ---
> >>>>  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
> >>>>  1 file changed, 2 insertions(+)
> >>>>
> >>>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> >>>> index 6249e9e02928..20fc0584d1c6 100644
> >>>> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> >>>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> >>>> @@ -5,6 +5,7 @@
> >>>>
> >>>>  #include "sun50i-h6.dtsi"
> >>>>  #include "sun50i-h6-cpu-opp.dtsi"
> >>>> +#include "sun50i-h6-gpu-opp.dtsi"
> >>>>
> >>>>  #include <dt-bindings/gpio/gpio.h>
> >>>>
> >>>> @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
> >>>>                       };
> >>>>
> >>>>                       reg_dcdcc: dcdcc {
> >>>> +                             regulator-always-on;
> >>>
> >>> Why is this necessary? This file already has:
> >>
> >> This is a relica from the first serie at this time the OPP doesn't
> >> properly enable the regulator it's now fixed since:
> >> https://patchwork.kernel.org/project/linux-pm/patch/81eb2efeeed1556d124065252f32777838a6d850.1589528491.git.viresh.kumar@linaro.org/
>
> This should have nothing to do with the OPP driver; lima already has a "mali"
> regulator consumer that should be enabled whenever the GPU is in use.

Okay so you propose to add a regulator_enable() in the panfrost
drivers in addition to the OPP consumer right?

I will send a patch to add this and see what's panfrost maintainer
think about it.

Regards,
Clement

>
> _Adding_ a regulator consumer from the OPP driver should not somehow decrease
> the refcount.
>
> >> I will drop it.
> >
> > After retesting it, it seems to still no take the regulator and make
> > my board hang... :(
> >
> > [   17.698597] sun8i-dw-hdmi 6000000.hdmi: registered DesignWare HDMI
> > I2C bus driver
> > [   17.708475] sun4i-drm display-engine: bound 6000000.hdmi (ops
> > sun8i_dw_hdmi_ops [sun8i_drm_hdmi])
> > [   17.718350] [drm] Initialized sun4i-drm 1.0.0 20150629 for
> > display-engine on minor 1
> > [   17.877443] Console: switching to colour frame buffer device 320x90
> > [   17.936050] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb
> > frame buffer device
> > [   17.961881] platform 5200000.usb: deferred probe pending
> >>>>> [   31.710731] vdd-gpu: disabling <<<<<
>
> Are there any messages from lima, especially about mali-supply? Can you provide
> regulators_summary from debugfs?
>
> Regards,
> Samuel
Re: [PATCH v2 4/4] arm64: dts: allwinner: beelink-gs1: Enable GPU OPP
Posted by Clément Péron 3 years, 3 months ago 
Hi Samuel,

On Sun, 4 Sept 2022 at 16:23, Clément Péron <peron.clem@gmail.com> wrote:
>
> Hi Samuel,
>
> On Sun, 4 Sept 2022 at 05:32, Samuel Holland <samuel@sholland.org> wrote:
> >
> > On 9/3/22 2:06 PM, Clément Péron wrote:
> > > Hi Samuel,
> > >
> > > On Sat, 3 Sept 2022 at 20:41, Clément Péron <peron.clem@gmail.com> wrote:
> > >>
> > >> Hi Samuel,
> > >>
> > >> On Tue, 23 Aug 2022 at 05:07, Samuel Holland <samuel@sholland.org> wrote:
> > >>>
> > >>> On 8/21/22 12:30 PM, Clément Péron wrote:
> > >>>> Enable GPU OPP table for Beelink GS1
> > >>>>
> > >>>> Signed-off-by: Clément Péron <peron.clem@gmail.com>
> > >>>> ---
> > >>>>  arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts | 2 ++
> > >>>>  1 file changed, 2 insertions(+)
> > >>>>
> > >>>> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > >>>> index 6249e9e02928..20fc0584d1c6 100644
> > >>>> --- a/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > >>>> +++ b/arch/arm64/boot/dts/allwinner/sun50i-h6-beelink-gs1.dts
> > >>>> @@ -5,6 +5,7 @@
> > >>>>
> > >>>>  #include "sun50i-h6.dtsi"
> > >>>>  #include "sun50i-h6-cpu-opp.dtsi"
> > >>>> +#include "sun50i-h6-gpu-opp.dtsi"
> > >>>>
> > >>>>  #include <dt-bindings/gpio/gpio.h>
> > >>>>
> > >>>> @@ -261,6 +262,7 @@ reg_dcdca: dcdca {
> > >>>>                       };
> > >>>>
> > >>>>                       reg_dcdcc: dcdcc {
> > >>>> +                             regulator-always-on;
> > >>>
> > >>> Why is this necessary? This file already has:
> > >>
> > >> This is a relica from the first serie at this time the OPP doesn't
> > >> properly enable the regulator it's now fixed since:
> > >> https://patchwork.kernel.org/project/linux-pm/patch/81eb2efeeed1556d124065252f32777838a6d850.1589528491.git.viresh.kumar@linaro.org/
> >
> > This should have nothing to do with the OPP driver; lima already has a "mali"
> > regulator consumer that should be enabled whenever the GPU is in use.
>
> Okay so you propose to add a regulator_enable() in the panfrost
> drivers in addition to the OPP consumer right?

After a quick look it seems that it's explicit that we don't want two
consumer for the same regulator and OPP should handle the enabling of
the regulator.

/* OPP will handle regulators */
if (!pfdev->pfdevfreq.opp_of_table_added) {
err = panfrost_regulator_init(pfdev);
if (err)
goto out_devfreq;
}


>
> I will send a patch to add this and see what's panfrost maintainer
> think about it.
>
> Regards,
> Clement
>
> >
> > _Adding_ a regulator consumer from the OPP driver should not somehow decrease
> > the refcount.
> >
> > >> I will drop it.
> > >
> > > After retesting it, it seems to still no take the regulator and make
> > > my board hang... :(
> > >
> > > [   17.698597] sun8i-dw-hdmi 6000000.hdmi: registered DesignWare HDMI
> > > I2C bus driver
> > > [   17.708475] sun4i-drm display-engine: bound 6000000.hdmi (ops
> > > sun8i_dw_hdmi_ops [sun8i_drm_hdmi])
> > > [   17.718350] [drm] Initialized sun4i-drm 1.0.0 20150629 for
> > > display-engine on minor 1
> > > [   17.877443] Console: switching to colour frame buffer device 320x90
> > > [   17.936050] sun4i-drm display-engine: [drm] fb0: sun4i-drmdrmfb
> > > frame buffer device
> > > [   17.961881] platform 5200000.usb: deferred probe pending
> > >>>>> [   31.710731] vdd-gpu: disabling <<<<<
> >
> > Are there any messages from lima, especially about mali-supply? Can you provide
> > regulators_summary from debugfs?
> >
> > Regards,
> > Samuel

Patchew 2.1-devel-b67e4c2

© 2016 - 2025 Red Hat, Inc.