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Message-ID: <120ca0a9-0e2f-bd87-8266-2a03e2865015@denx.de>
Date: Fri, 11 Aug 2023 05:47:03 +0200
From: Marek Vasut <marex@...x.de>
To: Conor Dooley <conor@...nel.org>,
Guido Günther <guido.gunther@...i.sm>
Cc: David Heidelberg <david@...t.cz>, Stefan Agner <stefan@...er.ch>,
David Airlie <airlied@...il.com>,
Daniel Vetter <daniel@...ll.ch>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Liu Ying <victor.liu@....com>, kernel@...i.sm,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Rob Herring <robh@...nel.org>, dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
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 <david@...t.cz>
>>> ---
>>> .../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 <marex@...x.de>
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