linux-kernel - Re: [PATCH 1/2] dt-bindings: interconnect: Add generic qcom bindings

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Message-ID: <265041af-2a5c-4a09-457f-f4b39cbdb8eb@codeaurora.org>
Date:   Thu, 9 Jul 2020 12:45:01 -0700
From:   Mike Tipton <mdtipton@...eaurora.org>
To:     Matthias Kaehlcke <mka@...omium.org>
Cc:     georgi.djakov@...aro.org, bjorn.andersson@...aro.org,
        robh+dt@...nel.org, agross@...nel.org, linux-pm@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: interconnect: Add generic qcom bindings

On 7/9/2020 8:35 AM, Matthias Kaehlcke wrote:
> On Mon, Jun 22, 2020 at 09:05:14PM -0700, Mike Tipton wrote:
>> Add generic qcom interconnect bindings that are common across platforms. In
>> particular, these include QCOM_ICC_TAG_* macros that clients can use when
>> calling icc_set_tag().
>>
>> Signed-off-by: Mike Tipton <mdtipton@...eaurora.org>
>> ---
>>   include/dt-bindings/interconnect/qcom,icc.h | 26 +++++++++++++++++++++
>>   1 file changed, 26 insertions(+)
>>   create mode 100644 include/dt-bindings/interconnect/qcom,icc.h
>>
>> diff --git a/include/dt-bindings/interconnect/qcom,icc.h b/include/dt-bindings/interconnect/qcom,icc.h
>> new file mode 100644
>> index 000000000000..cd34f36daaaa
>> --- /dev/null
>> +++ b/include/dt-bindings/interconnect/qcom,icc.h
>> @@ -0,0 +1,26 @@
>> +/* SPDX-License-Identifier: GPL-2.0-only */
>> +/*
>> + * Copyright (c) 2020, The Linux Foundation. All rights reserved.
>> + */
>> +
>> +#ifndef __DT_BINDINGS_INTERCONNECT_QCOM_ICC_H
>> +#define __DT_BINDINGS_INTERCONNECT_QCOM_ICC_H
>> +
>> +/*
>> + * The AMC bucket denotes constraints that are applied to hardware when
>> + * icc_set_bw() completes, whereas the WAKE and SLEEP constraints are applied
>> + * when the execution environment transitions between active and low power mode.
>> + */
>> +#define QCOM_ICC_BUCKET_AMC		0
>> +#define QCOM_ICC_BUCKET_WAKE		1
>> +#define QCOM_ICC_BUCKET_SLEEP		2
>> +#define QCOM_ICC_NUM_BUCKETS		3
>> +
>> +#define QCOM_ICC_TAG_AMC		(1 << QCOM_ICC_BUCKET_AMC)
>> +#define QCOM_ICC_TAG_WAKE		(1 << QCOM_ICC_BUCKET_WAKE)
>> +#define QCOM_ICC_TAG_SLEEP		(1 << QCOM_ICC_BUCKET_SLEEP)
>> +#define QCOM_ICC_TAG_ACTIVE_ONLY	(QCOM_ICC_TAG_AMC | QCOM_ICC_TAG_WAKE)
>> +#define QCOM_ICC_TAG_ALWAYS		(QCOM_ICC_TAG_AMC | QCOM_ICC_TAG_WAKE |\
>> +					 QCOM_ICC_TAG_SLEEP)
>> +
>> +#endif
> 
> Would it make sense to squash the two patches of this series into a
> single patch? This would make it more evident that this was moved
> from drivers/interconnect/qcom/icc-rpmh.h and avoid duplicate
> definitions if only this patch was applied.

Makes sense to me. I'm going to have to move this to my other patch 
series anyway, so I can squash these two and include it in v2 of 
"interconnect: qcom: Misc bcm-voter changes and fixes".