linux-kernel - Re: [PATCH v3 1/3] dt-bindings: hwlock: Adding brcmstb-hwspinlock support

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Message-ID: <c6b68ec7-9195-4961-86dc-802a7cc55e38@kernel.org>
Date: Tue, 14 Oct 2025 23:46:09 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Kamal Dasu <kamal.dasu@...adcom.com>
Cc: peng.fan@....nxp.com, andersson@...nel.org,
 baolin.wang@...ux.alibaba.com, robh@...nel.org, krzk+dt@...nel.org,
 conor+dt@...nel.org, florian.fainelli@...adcom.com,
 bcm-kernel-feedback-list@...adcom.com, linux-remoteproc@...r.kernel.org,
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 1/3] dt-bindings: hwlock: Adding brcmstb-hwspinlock
 support

On 14/10/2025 17:40, Kamal Dasu wrote:
> On Thu, Oct 9, 2025 at 10:00 PM Krzysztof Kozlowski <krzk@...nel.org> wrote:
>>
>> On 09/10/2025 23:20, Kamal Dasu wrote:
>>> The broadcom settop SoCs have hardware semaphores as part of "sundry"
>>> IP block which has other controls that do not belong anywhere else.
>>> e.g. pin/mux controls, SoC identification, drive strength, reset controls,
>>> and other misc bits are part of this block.
>>
>> This does not explain why this has to be a separate block. Rob comment
>> stays valid - this belongs to parent node.
>>
> 
> We do not have a separate parent node where this will fit in. We have


So what is the parent? simple bus?

> the DWORD aligned  register defined here as organized in the SUNDRY
> block.


I don't know what SUNDRY is.

Best regards,
Krzysztof