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Mon, 24 Aug 2026 13:21:06 -0700 (PDT) X-Received: by 2002:a17:90b:2e4b:b0:38e:7168:281 with SMTP id 98e67ed59e1d1-396464a18c5mr2844738a91.10.1787602865654; Mon, 24 Aug 2026 13:21:05 -0700 (PDT) Received: from localhost ([50.35.46.84]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327f8e2a730sm30617617eec.0.2026.08.24.13.21.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 13:21:05 -0700 (PDT) Date: Mon, 24 Aug 2026 13:21:02 -0700 From: Jonathan Cameron To: Sudeep Holla Cc: arm-scmi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@meta.com, Cristian Marussi , Breno Leitao Subject: Re: [PATCH v3 8/9] firmware: arm_scmi: Initialise known ACPI protocol devices and channels Message-ID: <20260824132102.00006822@oss.qualcomm.com> In-Reply-To: <20260813-acpi_scmi_pcc-v3-8-cb6b88b4ebb3@kernel.org> References: <20260813-acpi_scmi_pcc-v3-0-cb6b88b4ebb3@kernel.org> <20260813-acpi_scmi_pcc-v3-8-cb6b88b4ebb3@kernel.org> Organization: Qualcomm X-Mailer: Claws Mail 4.4.0 (GTK 3.24.51; x86_64-w64-mingw32) Precedence: bulk X-Mailing-List: arm-scmi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: -EIFfymKufMJqQApy-394Y6FxigYwFzB X-Proofpoint-GUID: -EIFfymKufMJqQApy-394Y6FxigYwFzB X-Proofpoint-Spam-Info: AW1haW4tMjYwODI0MDE3MSBTYWx0ZWRfX++BvxPj19U8f AxO4PXI1DeSYeusLw87dUpHjkzjwW3LOMz4q94cRPqP2Cg7bZycRd00sCNX8fq4rzAzfTnJzyJi 0uaYqUK78gFSJqxZa6s4uyL5y3AW1GM= X-Authority-Analysis: v=2.4 cv=TqPWQjXh c=1 sm=1 tr=0 ts=6a8ca7b2 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=qC1CW/w66vtJz1P9yTJxNA==:17 a=kj9zAlcOel0A:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=WWDN7_Rpj_YlblzOS3IA:9 a=CjuIK1q_8ugA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI0MDE3MSBTYWx0ZWRfX0YRgAkiMyqGk 9yB4t9O0MH+jBOTcLz25rN6HzU62XVXHLSmEMAvq4rE1hijg6bNcHb9pLJhkoklEiC5+Wu440Qh 7EmMGqaoNqGOHJP7+rd4dGegTQyDuS4iM74ABkOImDv57kRJtBXRLHfkKYJ7smgRjLAIuBCs3PS pqwThSImn6BF+W0oi5t3U99RBDO2hW527t1dwWW97CBS1vV2xLwNgQsnYyxvWwWM9CD/YKV7fUB RxcOaUdGcf5YggOdDcrtF1NLx1McQeQ+cDGa2l4K5Cc5qJOeec0h7HlWN6FJXgWSrnwYHqNgB+5 oTkyCIHuCWJycbbz3MGqHbjcUX+OoRnaEnMU2tXdboVehh/QeyAfigtJ2kTMAtm1O0B4jnUJI9L EsPOjlcS47+OLMOw69OBC9XY4RgrBuv8ZsI+tKXyczE1xEQEE1MNhN7gO4/QZ0dpiBMWDAP6bxv D7t5/qH9SneGC+WH+Hg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-24_06,2026-08-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 malwarescore=0 spamscore=0 phishscore=0 lowpriorityscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608240171 On Thu, 13 Aug 2026 12:33:03 +0100 Sudeep Holla wrote: > Unlike Device Tree, the ACPI SCMI namespace device does not provide > child fwnodes to represent each protocol. Iterate over the non-BASE > entries in scmi_dsd_info_list to initialize their protocol devices and > transport channels. The BASE channel and device are handled by the > common setup path. > > Let the transport channel-availability and SCMI protocol implementation > checks decide which of the known protocols are usable on the platform. > > Signed-off-by: Sudeep Holla Reviewed-by: Jonathan Cameron