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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b879516900csm1178682566b.23.2026.01.19.05.31.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Jan 2026 05:31:18 -0800 (PST) Message-ID: Date: Mon, 19 Jan 2026 14:31:16 +0100 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 v4 4/4] arm64: dts: qcom: Add base PURWA-IOT-EVK board To: Dmitry Baryshkov , Yijie Yang Cc: Krzysztof Kozlowski , andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20260116-purwa-v4-0-89b2adae9f09@oss.qualcomm.com> <20260116104136.2922032-4-yijie.yang@oss.qualcomm.com> <3404f2f4-7edb-4bff-925b-0a6a7a450f5c@oss.qualcomm.com> <7sbof5mgm7mqtm4gh45f4w7264akplqtkfyplrerek4w6seipl@ith7sc3wmgih> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <7sbof5mgm7mqtm4gh45f4w7264akplqtkfyplrerek4w6seipl@ith7sc3wmgih> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTE5MDExMiBTYWx0ZWRfX3homEqdTdqYR VCu4uqOHw2vPB4m/nOBb6n3T8uAynN0zzez24D+FDLc1DRGo8eCfCn8KwNPRlFPc5ysQSLgrADV Zg6Ge2MGvhGMQM4L0bgJpDrLKSTgrRqA9Uuh2ygAaWNcsuLR87r8KCoGggJXeJRySBi5niskG71 ePhwcKcBNkRxZEvALlIMubVnoioMV+IaPeDzBGUt6EMj0n45ZxMvdtIrrTwzGDKYSunhX8J72z1 B1GZLHSjL1V7bbTKCfH95VGTgkapR6zvopk3xCdegFQQsTk+ZJyIWFVC2ggpKV+1+ajX0Sd3oLt TDyWHHYxVEGQJJMJRSyDGw5BrF/rBN85ZRCmwM/BI6uvc5SnEyN76dW5agHouwa5LPZgXYP/u5X zWP3zgsiWQnCIsgmeA9+pPKLBhL7+WFSn3TDOJp2ryUNygfkYIPRlbaDPasBuvLGMS4MJvRADc3 GTmYgSaoPT8Y1KiDj9Q== X-Authority-Analysis: v=2.4 cv=Is4Tsb/g c=1 sm=1 tr=0 ts=696e3228 cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=C50igqWIdSMoUx98drYA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: HMJUrgKPgJKdAEQG6tKesvn6J9_2ezN5 X-Proofpoint-GUID: HMJUrgKPgJKdAEQG6tKesvn6J9_2ezN5 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=2026-01-19_03,2026-01-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 clxscore=1015 lowpriorityscore=0 suspectscore=0 spamscore=0 bulkscore=0 malwarescore=0 priorityscore=1501 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601190112 On 1/19/26 10:46 AM, Dmitry Baryshkov wrote: > On Mon, Jan 19, 2026 at 04:48:20PM +0800, Yijie Yang wrote: >> >> >> On 1/19/2026 2:33 PM, Dmitry Baryshkov wrote: >>> On Mon, Jan 19, 2026 at 11:13:29AM +0800, Yijie Yang wrote: >>>> >>>> >>>> On 1/17/2026 12:19 AM, Krzysztof Kozlowski wrote: >>>>> On 16/01/2026 11:41, YijieYang wrote: >>>>>> From: Yijie Yang >>>>>> >>>>>> The PURWA-IOT-EVK is an evaluation platform for IoT products, composed of >>>>>> the Purwa IoT SoM and a carrier board. Together, they form a complete >>>>>> embedded system capable of booting to UART. >>>>>> >>>>>> PURWA-IOT-EVK uses the PS8833 as a retimer for USB0, unlike HAMOA-IOT-EVK. >>>>>> Meanwhile, USB0 bypasses the SBU selector FSUSB42. >>>>>> >>>>> >>>>> NAK. >>>>> >>>>> Warnings were reported at v3. Did you address them? No, you completely >>>>> ignored them, so warnings are reported again at v4. >>>>> >>>>> What do you think these emails are for? >>>> >>>> This warning is caused by the pcie3_phy node in purwa.dtsi, which is not >>>> introduced by this patch set. Since it does not impact functionality, would >>>> it be appropriate to fix it in a separate patch? >>> >>> Why can't it be fixed as a part of this patchset? >> >> 'qcom,4ln-config-sel' is a property related to bifurcated PHY support, which >> Purwa’s PCIe3 does not provide. Therefore, introducing a new compatible with >> a corresponding binding would be more appropriate than simply adding this >> property. Is it acceptable to address this within the current patch set? > > Within this or in the separate patchset, but it needs to be fixed before > this patch can go in. Otherwise we are enabling broken PCIe3. https://lore.kernel.org/linux-arm-msm/20260119-topic-purwa_phy_shutup_warning-v1-1-997a692b31c6@oss.qualcomm.com/T/#u Konrad