linux-kernel - Re: [PATCH v2 2/4] dt-bindings: interconnect: Add Qualcomm IPQ9574 support

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Date: Tue, 26 Mar 2024 10:12:29 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Varadarajan Narayanan <quic_varada@...cinc.com>
Cc: andersson@...nel.org, konrad.dybcio@...aro.org, mturquette@...libre.com,
 sboyd@...nel.org, robh@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, djakov@...nel.org, quic_anusha@...cinc.com,
 linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-pm@...r.kernel.org
Subject: Re: [PATCH v2 2/4] dt-bindings: interconnect: Add Qualcomm IPQ9574
 support

On 26/03/2024 09:59, Varadarajan Narayanan wrote:
>>> ---
>>>  .../dt-bindings/interconnect/qcom,ipq9574.h   | 62 +++++++++++++++++++
>>>  1 file changed, 62 insertions(+)
>>>  create mode 100644 include/dt-bindings/interconnect/qcom,ipq9574.h
>>>
>>> diff --git a/include/dt-bindings/interconnect/qcom,ipq9574.h b/include/dt-bindings/interconnect/qcom,ipq9574.h
>>> new file mode 100644
>>> index 000000000000..b7b32aa6bbb1
>>> --- /dev/null
>>> +++ b/include/dt-bindings/interconnect/qcom,ipq9574.h
>>> @@ -0,0 +1,62 @@
>>> +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
>>> +#ifndef INTERCONNECT_QCOM_IPQ9574_H
>>> +#define INTERCONNECT_QCOM_IPQ9574_H
>>> +
>>> +#define IPQ_APPS_ID			9574	/* some unique value */
>>
>> Why random unique values are bindings? Why this cannot be 0? Please
>> explain how this is used by DTS and driver.
> 
> This 'id' is not used by the driver or DTS. It is a unique id that

Then it is not a binding really.

Don't put driver stuff to bindings.


Best regards,
Krzysztof