linux-kernel - Re: [PATCH v3 2/2] interconnect: qcom: Add SM6115 interconnect provider driver

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Date:   Wed, 13 Dec 2023 15:36:04 +0200
From:   Georgi Djakov <djakov@...nel.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        Konrad Dybcio <konradybcio@...nel.org>
Subject: Re: [PATCH v3 2/2] interconnect: qcom: Add SM6115 interconnect
 provider driver

On 11.12.23 19:55, Rob Herring wrote:
> On Wed, Nov 29, 2023 at 8:41 AM Konrad Dybcio <konrad.dybcio@...aro.org> wrote:
>>
>> Add a driver for managing NoC providers on SM6115.
>>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
>> ---
>>   drivers/interconnect/qcom/Kconfig  |    9 +
>>   drivers/interconnect/qcom/Makefile |    2 +
>>   drivers/interconnect/qcom/sm6115.c | 1427 ++++++++++++++++++++++++++++++++++++
>>   3 files changed, 1438 insertions(+)
>>
>> diff --git a/drivers/interconnect/qcom/Kconfig b/drivers/interconnect/qcom/Kconfig
>> index 4d15ce2dab16..697f96c49f6f 100644
>> --- a/drivers/interconnect/qcom/Kconfig
>> +++ b/drivers/interconnect/qcom/Kconfig
>> @@ -191,6 +191,15 @@ config INTERCONNECT_QCOM_SDX75
>>            This is a driver for the Qualcomm Network-on-Chip on sdx75-based
>>            platforms.
>>
>> +config INTERCONNECT_QCOM_SM6115
>> +       tristate "Qualcomm SM6115 interconnect driver"
>> +       depends on INTERCONNECT_QCOM
>> +       depends on QCOM_SMD_RPM
>> +       select INTERCONNECT_QCOM_SMD_RPM
>> +       help
>> +         This is a driver for the Qualcomm Network-on-Chip on sm6115-based
>> +         platforms.
>> +
>>   config INTERCONNECT_QCOM_SM6350
>>          tristate "Qualcomm SM6350 interconnect driver"
>>          depends on INTERCONNECT_QCOM_RPMH_POSSIBLE
>> diff --git a/drivers/interconnect/qcom/Makefile b/drivers/interconnect/qcom/Makefile
>> index 3a8a6ef67543..704846165022 100644
>> --- a/drivers/interconnect/qcom/Makefile
>> +++ b/drivers/interconnect/qcom/Makefile
>> @@ -24,6 +24,7 @@ qnoc-sdm845-objs                      := sdm845.o
>>   qnoc-sdx55-objs                                := sdx55.o
>>   qnoc-sdx65-objs                                := sdx65.o
>>   qnoc-sdx75-objs                                := sdx75.o
>> +qnoc-sm6115-objs                       := sm6115.o
>>   qnoc-sm6350-objs                       := sm6350.o
>>   qnoc-sm8150-objs                       := sm8150.o
>>   qnoc-sm8250-objs                       := sm8250.o
>> @@ -55,6 +56,7 @@ obj-$(CONFIG_INTERCONNECT_QCOM_SDM845) += qnoc-sdm845.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SDX55) += qnoc-sdx55.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SDX65) += qnoc-sdx65.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SDX75) += qnoc-sdx75.o
>> +obj-$(CONFIG_INTERCONNECT_QCOM_SM6115) += qnoc-sm6115.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SM6350) += qnoc-sm6350.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SM8150) += qnoc-sm8150.o
>>   obj-$(CONFIG_INTERCONNECT_QCOM_SM8250) += qnoc-sm8250.o
>> diff --git a/drivers/interconnect/qcom/sm6115.c b/drivers/interconnect/qcom/sm6115.c
>> new file mode 100644
>> index 000000000000..c49a83c87739
>> --- /dev/null
>> +++ b/drivers/interconnect/qcom/sm6115.c
>> @@ -0,0 +1,1427 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Copyright (c) 2021, The Linux Foundation. All rights reserved.
>> + * Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
>> + * Copyright (c) 2023, Linaro Limited
>> + */
>> +
>> +#include <dt-bindings/interconnect/qcom,sm6115.h>
>> +#include <linux/clk.h>
>> +#include <linux/device.h>
>> +#include <linux/interconnect-provider.h>
>> +#include <linux/io.h>
>> +#include <linux/module.h>
>> +#include <linux/of_device.h>
> 
> You probably don't need this header and the implicit includes it makes
> are dropped now in linux-next. Please check what you actually need and
> make them explicit.
> 
>> +#include <linux/of_platform.h>
> 
> Also probably not needed. Please double check.
> 
> Rob

Yes, these are not needed. But we will need to include mod_devicetable.h
for struct of_device_id. Now i notice also that other headers like clk.h
io.h and slab.h are not really needed here as well.

Konrad, could you please submit a follow-up patch to fix this?

Thanks,
Georgi