2023-07-30 19:43:40

by David Heidelberg

[permalink] [raw]
Subject: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
requirement of power-domains, thou it's not required.

Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")

Signed-off-by: David Heidelberg <[email protected]>
---
.../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
index fc11ab5fc465..2d868276b0f9 100644
--- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
+++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
@@ -129,8 +129,15 @@ allOf:
- fsl,imx8mp-lcdif
- fsl,imx93-lcdif
then:
- required:
- - power-domains
+ if:
+ properties:
+ compatible:
+ not:
+ contains:
+ const: fsl,imx8mq-lcdif
+ then:
+ required:
+ - power-domains

examples:
- |
--
2.40.1



2023-08-02 10:00:03

by Guido Günther

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

Hi,
On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> requirement of power-domains, thou it's not required.
>
> Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
>
> Signed-off-by: David Heidelberg <[email protected]>
> ---
> .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> index fc11ab5fc465..2d868276b0f9 100644
> --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> @@ -129,8 +129,15 @@ allOf:
> - fsl,imx8mp-lcdif
> - fsl,imx93-lcdif
> then:
> - required:
> - - power-domains
> + if:
> + properties:
> + compatible:
> + not:
> + contains:
> + const: fsl,imx8mq-lcdif
> + then:
> + required:
> + - power-domains

We currently enable the mipi power domain for the mipi dphy and nwl
bridge only but not for LCDIF itself assuming it's not needed (as there's
other outputs LCDIF can drive). I *think* this is correct but maybe
Marek or Liu can confirm?

Cheers,
-- Guido

>
> examples:
> - |
> --
> 2.40.1
>

2023-08-10 20:03:52

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

On Wed, Aug 02, 2023 at 11:51:17AM +0200, Guido G?nther wrote:
> Hi,
> On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> > i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> > requirement of power-domains, thou it's not required.
> >
> > Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
> >
> > Signed-off-by: David Heidelberg <[email protected]>
> > ---
> > .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
> > 1 file changed, 9 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > index fc11ab5fc465..2d868276b0f9 100644
> > --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > @@ -129,8 +129,15 @@ allOf:
> > - fsl,imx8mp-lcdif
> > - fsl,imx93-lcdif
> > then:
> > - required:
> > - - power-domains
> > + if:
> > + properties:
> > + compatible:
> > + not:
> > + contains:
> > + const: fsl,imx8mq-lcdif
> > + then:
> > + required:
> > + - power-domains
>
> We currently enable the mipi power domain for the mipi dphy and nwl
> bridge only but not for LCDIF itself assuming it's not needed (as there's
> other outputs LCDIF can drive). I *think* this is correct but maybe
> Marek or Liu can confirm?

I'm happy to Ack this, but I've been sitting on it waiting to see if
Marek or Liu popped up..


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2023-08-11 04:54:03

by Marek Vasut

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Subject: Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

On 8/10/23 21:30, Conor Dooley wrote:
> On Wed, Aug 02, 2023 at 11:51:17AM +0200, Guido Günther wrote:
>> Hi,
>> On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
>>> i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
>>> requirement of power-domains, thou it's not required.
>>>
>>> Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
>>>
>>> Signed-off-by: David Heidelberg <[email protected]>
>>> ---
>>> .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
>>> 1 file changed, 9 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
>>> index fc11ab5fc465..2d868276b0f9 100644
>>> --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
>>> +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
>>> @@ -129,8 +129,15 @@ allOf:
>>> - fsl,imx8mp-lcdif
>>> - fsl,imx93-lcdif
>>> then:
>>> - required:
>>> - - power-domains
>>> + if:
>>> + properties:
>>> + compatible:
>>> + not:
>>> + contains:
>>> + const: fsl,imx8mq-lcdif
>>> + then:
>>> + required:
>>> + - power-domains
>>
>> We currently enable the mipi power domain for the mipi dphy and nwl
>> bridge only but not for LCDIF itself assuming it's not needed (as there's
>> other outputs LCDIF can drive). I *think* this is correct but maybe
>> Marek or Liu can confirm?
>
> I'm happy to Ack this, but I've been sitting on it waiting to see if
> Marek or Liu popped up..

I don't see anything which would resemble power domains like on
MX8MM/N/P on the MQ MXSFB, there are such domains for the VPU and DCSS,
but not MXSFB. So

Reviewed-by: Marek Vasut <[email protected]>

2023-08-11 06:06:04

by Liu Ying

[permalink] [raw]
Subject: RE: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

On Friday, August 11, 2023 3:30 AM Conor Dooley <[email protected]> wrote:
>
> On Wed, Aug 02, 2023 at 11:51:17AM +0200, Guido G?nther wrote:
> > Hi,
> > On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> > > i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> > > requirement of power-domains, thou it's not required.
> > >
> > > Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document
> i.MX8M/i.MX6SX/i.MX6SL power-domains property")
> > >
> > > Signed-off-by: David Heidelberg <[email protected]>
> > > ---
> > > .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
> > > 1 file changed, 9 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > index fc11ab5fc465..2d868276b0f9 100644
> > > --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > @@ -129,8 +129,15 @@ allOf:
> > > - fsl,imx8mp-lcdif
> > > - fsl,imx93-lcdif
> > > then:
> > > - required:
> > > - - power-domains
> > > + if:
> > > + properties:
> > > + compatible:
> > > + not:
> > > + contains:
> > > + const: fsl,imx8mq-lcdif
> > > + then:
> > > + required:
> > > + - power-domains
> >
> > We currently enable the mipi power domain for the mipi dphy and nwl
> > bridge only but not for LCDIF itself assuming it's not needed (as there's
> > other outputs LCDIF can drive). I *think* this is correct but maybe
> > Marek or Liu can confirm?
>
> I'm happy to Ack this, but I've been sitting on it waiting to see if
> Marek or Liu popped up..

I see DCSS and HDMI controller/PHY sit in displaymix in a system
bus diagram(internal only), but LCDIF and MIPI DSI controller/PHY
are not in that mix. So, it seems that the "gpc_disp" power domain
defined in imx8mq.dtsi supplies power for DCSS and HDMI
controller/PHY only, though nxp,imx8mq-dcss.yaml doesn't even
allow a "power-domains" property...

Assuming that system bus diagram is correct and "gpc_disp" power domain
does supply power for everything in displaymix only:
Reviewed-by: Liu Ying <[email protected]>

P.s., there are still a few warnings from dtbs-check, see build log[1].
Hope they can be addressed...

[1] https://gitlab.com/robherring/dt-review-ci/-/jobs/4767324570/artifacts/raw/build-dtbs-1814673.log

Liu Ying

2023-08-11 07:19:45

by Conor Dooley

[permalink] [raw]
Subject: Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

On Thu, Aug 10, 2023 at 08:30:21PM +0100, Conor Dooley wrote:
> On Wed, Aug 02, 2023 at 11:51:17AM +0200, Guido G?nther wrote:
> > Hi,
> > On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> > > i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> > > requirement of power-domains, thou it's not required.
> > >
> > > Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
> > >
> > > Signed-off-by: David Heidelberg <[email protected]>
> > > ---
> > > .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
> > > 1 file changed, 9 insertions(+), 2 deletions(-)
> > >
> > > diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > index fc11ab5fc465..2d868276b0f9 100644
> > > --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> > > @@ -129,8 +129,15 @@ allOf:
> > > - fsl,imx8mp-lcdif
> > > - fsl,imx93-lcdif
> > > then:
> > > - required:
> > > - - power-domains
> > > + if:
> > > + properties:
> > > + compatible:
> > > + not:
> > > + contains:
> > > + const: fsl,imx8mq-lcdif
> > > + then:
> > > + required:
> > > + - power-domains
> >
> > We currently enable the mipi power domain for the mipi dphy and nwl
> > bridge only but not for LCDIF itself assuming it's not needed (as there's
> > other outputs LCDIF can drive). I *think* this is correct but maybe
> > Marek or Liu can confirm?
>
> I'm happy to Ack this, but I've been sitting on it waiting to see if
> Marek or Liu popped up..

Well, I got two positive responses, so
Acked-by: Conor Dooley <[email protected]>

Thanks,
Conor.



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2023-08-17 18:02:10

by Guido Günther

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Subject: Re: [PATCH] dt-bindings: mxsfb: Exclude i.MX8MQ from power-domains requirement

Hi,
On Sun, Jul 30, 2023 at 09:41:20PM +0300, David Heidelberg wrote:
> i.MX8MQ uses as secondary compatible fsl,imx6sx-lcdif, which triggers
> requirement of power-domains, thou it's not required.
>
> Fixes: f62678a77d58 ("dt-bindings: mxsfb: Document i.MX8M/i.MX6SX/i.MX6SL power-domains property")
>
> Signed-off-by: David Heidelberg <[email protected]>
> ---
> .../devicetree/bindings/display/fsl,lcdif.yaml | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> index fc11ab5fc465..2d868276b0f9 100644
> --- a/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> +++ b/Documentation/devicetree/bindings/display/fsl,lcdif.yaml
> @@ -129,8 +129,15 @@ allOf:
> - fsl,imx8mp-lcdif
> - fsl,imx93-lcdif
> then:
> - required:
> - - power-domains
> + if:
> + properties:
> + compatible:
> + not:
> + contains:
> + const: fsl,imx8mq-lcdif
> + then:
> + required:
> + - power-domains
>
> examples:
> - |
> --
> 2.40.1
>

Thanks a lot to Marek and Liu for confirming!

Acked-by: Guido G?nther <[email protected]>

Cheers,
-- Guido