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Wed, 11 Mar 2026 00:06:12 -0700 (PDT) X-Received: by 2002:a05:6a00:9485:b0:829:862d:6b46 with SMTP id d2e1a72fcca58-829f707339dmr1327308b3a.6.1773212772409; Wed, 11 Mar 2026 00:06:12 -0700 (PDT) Received: from [10.231.216.91] ([114.94.8.21]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-829f6eec127sm1364084b3a.30.2026.03.11.00.06.09 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 11 Mar 2026 00:06:12 -0700 (PDT) Message-ID: <7aff8a49-ac47-4d93-8028-2710ba4eb2d7@oss.qualcomm.com> Date: Wed, 11 Mar 2026 15:06:08 +0800 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 v2] arm64: dts: qcom: qcs6490-rb3gen2-industrial-mezzanine: disable WCN6750 and WPSS Content-Language: en-GB To: Dmitry Baryshkov Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260311023219.2284643-1-hangtian.zhu@oss.qualcomm.com> <20260311031145.2285056-1-hangtian.zhu@oss.qualcomm.com> From: Hangtian Zhu In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-GUID: ry8FDEeFrMtNRC_ldXBmcs6x3L_WRjgI X-Proofpoint-ORIG-GUID: ry8FDEeFrMtNRC_ldXBmcs6x3L_WRjgI X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzExMDA1OCBTYWx0ZWRfX3Gj4ILq2xwOI 0C48LLbvS3L1mTorPnHmd5ZDoEXQJLYpl47+SHEBHB92X/Ke7VqsjuSqaPUOSTrVL6nzIfzabOx 7TVwHu/PNkcX367SnOWg7ha7hZdFocAVzumFqAIEhvIvl/1Kbkq3NR/4Oug1hC+pQg699p59M/+ LaY3LcBi60skoCOwe9GZEhZnsWGPV/K2hiWgPT+dkdD4LYuWoVxC/K9KkIjXixfHu/lD4l0xMjU r2yyDDiRnUgTXxtHHj4P+UI4PzE5IiNtEKKOiaNfwKxzQkeJG95dkF8ffwudF6kl5ooF65SWSB1 1bpWTxEKgBJDFEwyJquWdbXFfT5bZm5rrbwnOmETtx6MClqiyIVMk25P7RPJ//6qh6X2sFAerIa 0Fnk8VRcxjWKnFEXQnuXucgwWgHtRUyMgjaRmPMOPPGlQeyQ0KQmFTCYgZvO3jULlm6E7u5cAMi HRfz4I0X3t5ryS04xog== X-Authority-Analysis: v=2.4 cv=M4JA6iws c=1 sm=1 tr=0 ts=69b11465 cx=c_pps a=m5Vt/hrsBiPMCU0y4gIsQw==:117 a=Uz3yg00KUFJ2y2WijEJ4bw==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=gk-v6F8X2pB81-9XRuQA:9 a=QEXdDO2ut3YA:10 a=IoOABgeZipijB_acs4fv:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-03-10_05,2026-03-09_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 adultscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 spamscore=0 suspectscore=0 bulkscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603110058 On 3/11/2026 12:34, Dmitry Baryshkov wrote: > On Wed, Mar 11, 2026 at 11:11:45AM +0800, Hangtian Zhu wrote: >> From: Hangtian Zhu >> >> Disable WCN6750 and WPSS on industrial mezzanine. On RB3 Gen2 industrial > > You can't disable these devices on the mezzanine, they are not a part of > it. > >> mezzanine platform, pcie0 lines are moved from WCN6750 to QPS615 pcie > > PCIe0. How re they moved? What triggers the move? Please refer to: https://lore.kernel.org/all/20260305-industrial-mezzanine-pcie-v4-0-1f2c9d1344d7@oss.qualcomm.com/ On RB3 Gen2 industrial mezzanine, WCN6750 is not connected, instead TC9563 PCIe bridge is connected to PCIe0. > >> bridge. Hence disable WPSS and WCN6750 nodes for industrial mezzanine >> platform. >> >> Depends-on: https://lore.kernel.org/all/20260305-industrial-mezzanine-pcie-v4-2-1f2c9d1344d7@oss.qualcomm.com/ > > NAK. Don't invent non-standard tags. > >> >> Signed-off-by: Hangtian Zhu >> --- >> .../dts/qcom/qcs6490-rb3gen2-industrial-mezzanine.dtso | 8 ++++++++ >> 1 file changed, 8 insertions(+) >> >