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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-af47c496eefsm108992066b.25.2025.07.24.05.36.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 24 Jul 2025 05:36:53 -0700 (PDT) Message-ID: <9884efc6-c6c5-49f1-b582-55bba8397521@oss.qualcomm.com> Date: Thu, 24 Jul 2025 14:36:49 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/2] Add initial interconnect (icc_path) Rust abstractions To: Miguel Ojeda , Konrad Dybcio Cc: Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?UTF-8?Q?Bj=C3=B6rn_Roy_Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , Danilo Krummrich , Georgi Djakov , Dmitry Baryshkov , Bjorn Andersson , Marijn Suijten , linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, linux-pm@vger.kernel.org References: <20250722-topic-icc_rs-v1-0-9da731c14603@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: hBeYzsSxlg9iRpzW4xCd5ecjmw7ZDhq_ X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzI0MDA5NSBTYWx0ZWRfXwp7DXHXEtNO0 ytMRfmuuC+/5ZZcaG6c384X3pdUVU8ppnaLWMJ7IZTqm4onEuift/ye3sbMEpIxvOV86ROAAvuj VRgaTg84mssCpVfV3HUcC3PjfSMYVdyxEGWuxgdtI9pRPIU4WLPCaeUQRk3hfo2d5mganA1BLNW bGmCcPeJhxl7tKBDjFlLI1hNtHZXGW/G+p+X8ETSCMberNsz+Y62KHrAvLsYXxT94gITjaQOJSZ Uq4ioh5JYx3xghesgMSWiW1UCeM9lR7Pd5QjvbN6fgwNOA//q1kMI5Wh0buTr6uxu7dcADu2l3L g4+gaS+dXKyNBT1FqVL/5VOc/3xj0Tz1bzSZ7SAaVNpeeKEx1kJ5LMpNDA3c9gZFkFDi47wuWqE QW3U1wTPZl0ojm/xDM7k3QiXOq20Nr60Pn+9vsiDEiorqCgRyaiwyCzwoy5IJlsKj4/LqPRa X-Authority-Analysis: v=2.4 cv=E8/Npbdl c=1 sm=1 tr=0 ts=688228ea cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=Wb1JkmetP80A:10 a=VwQbUJbxAAAA:8 a=1ihfflFO6Zl3b22XxKoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-ORIG-GUID: hBeYzsSxlg9iRpzW4xCd5ecjmw7ZDhq_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-24_02,2025-07-24_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 priorityscore=1501 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 mlxlogscore=927 mlxscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2507240095 On 7/23/25 12:22 PM, Miguel Ojeda wrote: > On Tue, Jul 22, 2025 at 11:14 PM Konrad Dybcio wrote: >> >> icc_path is in essence very similar to `struct clk`, so the newly >> propsed bindings are understandably based on the corresponding >> common_clk module. >> This is the interconnect consumer part, with the corresponding ICC >> provider changes coming in some near future. >> >> I attached a sample driver making use of these, to ease any testing >> or CI work (as the title says, please don't merge it though). > > Thanks! > > The usual two main questions for new abstractions are whether the > maintainers of the C side want to see this happen (and how will it be > maintained etc.) and what users of the abstractions are expected > upstream. I haven't talked to Georgi about this. I can volunteer for code-janitoring, but as you can tell I'll still need your oversight Regarding the users, I don't have any specific promises on a consumer of these abstractions in a short term, although the ICC API is rather common (especially across the major arm-based SoCs), so it shouldn't be long before someone needs it. Konrad > > For the first part, some subsystems prefer to maintain it themselves, > others prefer to have someone else lead a separate sub-entry in > `MAINTAINERS` (e.g. "... [RUST]"), possibly with its own branch too. > > Cheers, > Miguel