linux-kernel - Re: [PATCH 2/3] interconnect: qcom: Add SM4450 interconnect provider driver

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Message-ID: <edc7df5b-0853-4bd9-aef8-6a37b2a5eb36@quicinc.com>
Date:   Fri, 8 Sep 2023 16:26:49 +0800
From:   Tengfei Fan <quic_tengfan@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>, <agross@...nel.org>,
        <andersson@...nel.org>, <djakov@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <catalin.marinas@....com>, <will@...nel.org>
CC:     <arnd@...db.de>, <geert+renesas@...der.be>,
        <nfraprado@...labora.com>, <rafal@...ecki.pl>, <peng.fan@....com>,
        <linux-arm-msm@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <quic_tsoni@...cinc.com>,
        <quic_shashim@...cinc.com>, <quic_kaushalk@...cinc.com>,
        <quic_tdas@...cinc.com>, <quic_tingweiz@...cinc.com>,
        <quic_aiquny@...cinc.com>, <kernel@...cinc.com>
Subject: Re: [PATCH 2/3] interconnect: qcom: Add SM4450 interconnect provider
 driver



在 9/8/2023 4:16 PM, Konrad Dybcio 写道:
> On 8.09.2023 08:44, Tengfei Fan wrote:
>> Add driver for the Qualcomm interconnect buses found in SM4450 based
>> platforms. The topology consists of several NoCs that are controlled
>> by a remote processor that collects the aggregated bandwidth for each
>> master-slave pairs.
>>
>> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
>> ---
> [...]
> 
>> +++ b/drivers/interconnect/qcom/sm4450.c
>> @@ -0,0 +1,1848 @@
>> +// SPDX-License-Identifier: GPL-2.0-only
>> +/*
>> + * Copyright (c) 2023, Qualcomm Innovation Center, Inc. All rights reserved.
>> + *
> Stray blank line
>> + */
>> +
>> +#include <linux/device.h>
>> +#include <linux/interconnect.h>
>> +#include <linux/interconnect-provider.h>
>> +#include <linux/io.h>
> Is this necessary?
> 
>> +#include <linux/module.h>
>> +#include <linux/of_device.h>
>> +#include <linux/of_platform.h>
>> +#include <linux/platform_device.h>
>> +#include <dt-bindings/interconnect/qcom,sm4450.h>
>> +
> [...]
> 
>> +static struct qcom_icc_node * const mmss_noc_nodes[] = {
>> +	[MASTER_CAMNOC_HF] = &qnm_camnoc_hf,
>> +	[MASTER_CAMNOC_ICP] = &qnm_camnoc_icp,
>> +	[MASTER_CAMNOC_SF] = &qnm_camnoc_sf,
>> +	[MASTER_MDP] = &qnm_mdp,
>> +	[MASTER_CNOC_MNOC_CFG] = &qnm_mnoc_cfg,
>> +	[MASTER_VIDEO_P0_MMNOC] = &qnm_video0,
>> +	[MASTER_VIDEO_PROC_MMNOC] = &qnm_video_cpu,
>> +	[SLAVE_MNOC_HF_MEM_NOC] = &qns_mem_noc_hf,
>> +	[SLAVE_MNOC_SF_MEM_NOC] = &qns_mem_noc_sf,
>> +	[SLAVE_SERVICE_MNOC] = &srvc_mnoc,
>> +	[MASTER_MDP_DISP] = &qnm_mdp_disp,
>> +	[SLAVE_MNOC_HF_MEM_NOC_DISP] = &qns_mem_noc_hf_disp,
> Please drop the _DISP paths, upstream will handle these with icc
> tags.
sure, will handle this.
> 
> [...]
> 
>> +
>> +static const struct of_device_id qnoc_of_match[] = {
>> +	{ .compatible = "qcom,sm4450-aggre1-noc",
>> +	  .data = &sm4450_aggre1_noc},
> Nit, but please:
> 
> - make these one line, like this:
> { .compatible = "qcom,sm4450-aggre1-noc", .data = &sm4450_aggre1_noc },
> 
> - add the missing space before '}'
sure, will handle this.
> 
> Konrad

-- 
Thx and BRs,
Tengfei Fan