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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Jason-JH Lin <jason-jh.lin@mediatek.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno 
	<angelogioacchino.delregno@collabora.com>
Cc: Fabien Parent <fparent@baylibre.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org, CK Hu <ck.hu@mediatek.com>,
	Rex-BC Chen <rex-bc.chen@mediatek.com>,
	Nancy Lin <nancy.lin@mediatek.com>,
	Singo Chang <singo.chang@mediatek.com>,
	Project_Global_Chrome_Upstream_Group@mediatek.com
Subject: Re: [PATCH] dt-bindings: arm: mediatek: mmsys: refine power and gce properties
Date: Fri, 29 Apr 2022 07:55:37 +0200	[thread overview]
Message-ID: <9779588a-5bda-ea82-64a0-c13d48d89eff@linaro.org> (raw)
In-Reply-To: <60338c26047f47c77fdc7d4eff6a7dee43853e1b.camel@mediatek.com>

On 29/04/2022 06:10, Jason-JH Lin wrote:
> Yes, we cannot have infinite number for this, but we can use not only
> one mbox channel for one mmsys.
> 
> Its maximum number is equal to GCE HW thread number.
> The maximum number in mt8195 is 24 and mt8173 is 16.
> 
> But we currently using 1.
> So I'm not sure if I need to set the maxItems for this?

Yes. 24 for mt8195 and 16 for mt8173.

> 
>>
>>>      description:
>>> -      Using mailbox to communicate with GCE, it should have this
>>> -      property and list of phandle, mailbox specifiers. See
>>> -      Documentation/devicetree/bindings/mailbox/mtk-gce.txt for
>>> details.
>>> -    $ref: /schemas/types.yaml#/definitions/phandle-array
>>> +      If using mailbox to communicate with GCE, it should have
>>> this
>>> +      property. GCE will help configure the hardware settings for
>>> the
>>> +      current mmsys data pipeline.
>>>  
>>>    mediatek,gce-client-reg:
>>> -    description:
>>> -      The register of client driver can be configured by gce with
>>> 4 arguments
>>> -      defined in this property, such as phandle of gce, subsys id,
>>> -      register offset and size.
>>> -      Each subsys id is mapping to a base address of display
>>> function blocks
>>> -      register which is defined in the gce header
>>> -      include/dt-bindings/gce/<chip>-gce.h.
>>> -    $ref: /schemas/types.yaml#/definitions/phandle-array
>>
>> Why removing ref? Does your binding work after such change?
> 
> I removed it unexpectedly, I'll add it back.

Just be sure you test it before submitting...


Best regards,
Krzysztof

  reply	other threads:[~2022-04-29  5:56 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20220428012715.2619-1-jason-jh.lin@mediatek.com>
2022-04-28  7:16 ` [PATCH] dt-bindings: arm: mediatek: mmsys: refine power and gce properties Krzysztof Kozlowski
2022-04-29  4:10   ` Jason-JH Lin
2022-04-29  5:55     ` Krzysztof Kozlowski [this message]
2022-04-29  7:54       ` Jason-JH Lin
2022-04-29 20:58         ` Krzysztof Kozlowski

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