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Message-ID: <6df9fb93-85cf-4c03-b0cd-781d4f42db30@linaro.org>
Date:   Thu, 14 Dec 2023 17:26:32 +0100
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Subject: Re: [PATCH 01/11] dt-bindings: display: rockchip,inno-hdmi: Document
 RK3128 compatible
To:     =?UTF-8?Q?Heiko_St=C3=BCbner?= <heiko@sntech.de>,
        Alex Bee <knaerzche@gmail.com>,
        Sandy Huang <hjc@rock-chips.com>, Andy Yan <andyshrk@163.com>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>,
        Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
        Maxime Ripard <mripard@kernel.org>,
        Thomas Zimmermann <tzimmermann@suse.de>
Cc:     David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>,
        devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org
References: <20231213195125.212923-1-knaerzche@gmail.com>
 <288857ab-bebd-4f80-9cdc-9b04fa6c7386@gmail.com>
 <df84a0cc-cb38-431f-864b-012ada7bb0d5@linaro.org> <2221612.3VsfAaAtOV@diego>
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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <2221612.3VsfAaAtOV@diego>
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Precedence: bulk

On 14/12/2023 17:20, Heiko Stübner wrote:
> Am Donnerstag, 14. Dezember 2023, 17:07:27 CET schrieb Krzysztof Kozlowski:
>> On 14/12/2023 16:22, Alex Bee wrote:
>>>
>>> Am 14.12.23 um 08:53 schrieb Krzysztof Kozlowski:
>>>> On 13/12/2023 20:51, Alex Bee wrote:
>>>>> Document the compatible for RK3128's HDMI controller block.
>>>>> The integration for this SoC is somewhat different here: It needs the PHY's
>>>> Please wrap commit message according to Linux coding style / submission
>>>> process (neither too early nor over the limit):
>>>> https://elixir.bootlin.com/linux/v6.4-rc1/source/Documentation/process/submitting-patches.rst#L597
>>> OK. Not sure why checkpatch --strict  didn't tell me that I'm over the 
>>> limit here.
>>>>
>>>>> reference clock rate to calculate the ddc bus frequency correctly. This
>>>>> clock is part of a power-domain (PD_VIO), so this gets added as an optional
>>>>> property too.
>>>> If clock is part of power domain, then the power domain must be in the
>>>> clock controller, not here. So either you put power domain in wrong
>>>> place or you used incorrect reason for a change.
>>>   Rockchip defines it's powerdomains per clock and I was little to much 
>>> in that world when writing this. Actually the controller itself is part 
>>> of the powerdomain. Will rephrase.
>>
>> Does it mean you have like 200 different power domains in one SoC? Then
>> how are they different than clock if there is one-to-one mapping?
> 
> It's more like the other way around. Controllers and their clocks belong
> to specific power-domains. So there are of course more clocks than domains.

That's fine and expected. Here the comment was suggested that you need
to add power-domain because clock is in power-domain. That would be
clearly wrong and instead the clock controller should model the power
domain relationship.
> 
> 
> 
> 

Best regards,
Krzysztof