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Fri, 21 Nov 2025 02:07:27 -0800 (PST) X-Google-Smtp-Source: AGHT+IEVecqhY0KyIOS0VJbGRckurUMgBDF0SzgoQ9N/+mxRQVhMYHtAiPWpWP+ignhE3DJhCxCfNA== X-Received: by 2002:a17:903:2c06:b0:297:fc22:3a9f with SMTP id d9443c01a7336-29b6bf19f1dmr24090275ad.38.1763719647429; Fri, 21 Nov 2025 02:07:27 -0800 (PST) Received: from [10.218.4.221] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29b5b25c20dsm52665545ad.59.2025.11.21.02.07.22 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 21 Nov 2025 02:07:27 -0800 (PST) Message-ID: Date: Fri, 21 Nov 2025 15:37:21 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH 1/1] arm64: dts: qcom: talos: Drop opp-shared from QUP OPP table Content-Language: en-US To: Bjorn Andersson Cc: 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, konrad.dybcio@oss.qualcomm.com, dmitry.baryshkov@linaro.org, mukesh.savaliya@oss.qualcomm.com References: <20251111170350.525832-1-viken.dadhaniya@oss.qualcomm.com> From: Viken Dadhaniya In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=ELgLElZC c=1 sm=1 tr=0 ts=692039e1 cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=6UeiqGixMTsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=cdpHMJko8vg9vcfRfWEA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMTIxMDA3NyBTYWx0ZWRfX31AsuUmlWgrJ Atf/KByRBD+1wg2Q6bHdLDYDqmy8tzTNs0nZgzBJeP18m6rRrUNufL8JOzW1Pdr3bggtR1KgkZK 6tb9HYpXsJ1be5wVscO9McndBUDf6WCoPc3rndXCdoO//GxOt8Lv8qG5s2wKmrVF8FG+Fla8ZKE HHxuBGM64v0c7NN4xLFoGsRXkz91XNz/947J837IwTTj6HpS75fIoNM2PzAiLj1k0nYKg8t5bCK qnTb6NBUpSQgfVnbQVX82altwtqRwMO9p7bHoZohNtQdm8HA1KejGwkaktAfIUkG+88N50SCh70 SaFW3YP6RHaVrQup86jLZm46jFG5T79yozS917965TewTNslmtFoAjIrnBZ0kD1rYvDwC+24MuW wHQ+XPdjkDQ3GvzufPEfZwfEZCCfew== X-Proofpoint-GUID: Q7HN-IGTGW3X8FqDXAvaRC0B_YUpUZB3 X-Proofpoint-ORIG-GUID: Q7HN-IGTGW3X8FqDXAvaRC0B_YUpUZB3 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-11-21_03,2025-11-20_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 malwarescore=0 clxscore=1015 priorityscore=1501 bulkscore=0 phishscore=0 spamscore=0 impostorscore=0 adultscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2510240001 definitions=main-2511210077 On 11/12/2025 1:25 AM, Bjorn Andersson wrote: > On Tue, Nov 11, 2025 at 10:33:50PM +0530, Viken Dadhaniya wrote: >> QUP devices are currently marked with opp-shared in their OPP table, >> causing the kernel to treat them as part of a shared OPP domain. This >> leads to the qcom_geni_serial driver failing to probe with error >> -EBUSY (-16). >> >> Remove the opp-shared property to ensure the OPP framework treats the >> QUP OPP table as device-specific, allowing the serial driver to probe >> successfully >> >> Fixes: f6746dc9e379 ("arm64: dts: qcom: qcs615: Add QUPv3 configuration") > > This was merged 11 months ago, and Yu Zhang added bluetooth support 3 > months ago. What changed to break the QUP users? I think it's reasonable > to use this "Fixes", but we should document - at least on the mailing > list, where the regression happened. > > Regards, > Bjorn I’ve checked the older Linux versions and found that this issue started occurring after the following change: https://lore.kernel.org/linux-devicetree/20250630064338.2487409-1-viken.dadhaniya@oss.qualcomm.com/ > >> Signed-off-by: Viken Dadhaniya >> --- >> arch/arm64/boot/dts/qcom/talos.dtsi | 1 - >> 1 file changed, 1 deletion(-) >> >> diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi >> index eb6f69be4a82..ed89d2d509d5 100644 >> --- a/arch/arm64/boot/dts/qcom/talos.dtsi >> +++ b/arch/arm64/boot/dts/qcom/talos.dtsi >> @@ -536,7 +536,6 @@ cdsp_smp2p_in: slave-kernel { >> >> qup_opp_table: opp-table-qup { >> compatible = "operating-points-v2"; >> - opp-shared; >> >> opp-75000000 { >> opp-hz = /bits/ 64 <75000000>; >> -- >> 2.34.1 >>