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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-352678af465sm10498378a91.11.2026.01.18.22.54.06 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 18 Jan 2026 22:54:09 -0800 (PST) Message-ID: Date: Mon, 19 Jan 2026 14:54:04 +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 v4 0/4] Initial patch set for PURWA-IOT-EVK 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, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Krzysztof Kozlowski References: <20260116-purwa-v4-0-89b2adae9f09@oss.qualcomm.com> Content-Language: en-US From: Yijie Yang In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTE5MDA1NSBTYWx0ZWRfX9kGhLHu+yX4G slk/+X8z/hg2SQYUswFEuif09PEE5v6Q2nuBiW2ov7gZup2g5VAvP56XGAIlZwLyGoUAUDnJypi zt7xL6pHdkGqPc4OBwQQfzwaPM47k0KI6vh/63NSTJHYQbF8MJ4BbBxLsbwlTGSZN3CcflDorNo zZdvoFoFd8VVNeQnaCrArIz6XTo2lTK8QhESm0v+kkcXWDD7WKIHdGdIh0k31Ul+OY7SiWsndl8 UQxOlE+DAst9g+ZQKpsbvg1RVsAhzxkA7tieuhGit6z/OLWh99NCOGkKX29JwDDqUyjZLusjANm lFxo5ihYQn2YzZ+1eA/EmqD59XYqwPcqdgzRnqsVIuZwrCALv05bvxR/iGvp5YmeMJstfoZoMIV Hhk7VhHKd4lZX/S8pFFY9nqzhsJpRaksppCsMuG/WCV3oXNzrkDY5eD1GwhrUVvWefH0bUghHYq Jc1Rl4Q7mkZuWzlelWQ== X-Authority-Analysis: v=2.4 cv=Sev6t/Ru c=1 sm=1 tr=0 ts=696dd513 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=R7vQKasIsJkg2XgAIocA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: btiHpJUhfI8KRVGg68IRx7GEWCqXSFIg X-Proofpoint-ORIG-GUID: btiHpJUhfI8KRVGg68IRx7GEWCqXSFIg 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_01,2026-01-19_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 impostorscore=0 spamscore=0 bulkscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601190055 On 1/19/2026 2:34 PM, Dmitry Baryshkov wrote: > On Mon, Jan 19, 2026 at 10:39:04AM +0800, Yijie Yang wrote: >> >> >> On 1/16/2026 7:31 PM, Dmitry Baryshkov wrote: >>> On Fri, Jan 16, 2026 at 06:41:26PM +0800, YijieYang wrote: >>>> From: Yijie Yang >>>> >>>> Introduce the device tree, DT bindings, and driver updates required to enable >>>> the bring-up of the PURWA-IOT-EVK evaluation board. Focus is on two key >>>> hardware components: >>>> >>>> PURWA-IOT-SOM — A compact System-on-Module integrating the SoC, GPIOs, and >>>> PMICs. Designed for modularity, it can pair with various carrier boards to >>>> support diverse use cases. >>>> >>>> PURWA-IOT-EVK — A carrier board tailored for IoT scenarios, providing >>>> essential peripherals such as UART, on-board PMICs, and USB components. >>>> >>>> Together, these components form a flexible and scalable platform. Initial >>>> functionality is achieved through proper device tree configuration and driver >>>> support. >>>> >>>> The PURWA-IOT-EVK/SOM shares most of its hardware design with >>>> HAMOA-IOT-EVK/SOM, differing primarily in the BOM. Consequently, the DTS files >>>> are largely similar. Both platforms belong to Qualcomm’s IQ-X family. For more >>>> details on the IQ-X series, see: >>>> https://www.qualcomm.com/internet-of-things/products/iq-x-series >>>> >>>> Hardware differences between HAMOA-IOT and PURWA-IOT: >>>> - Display — PURWA uses a different number of clocks and frequency compared to >>>> HAMOA. >>>> - GPU — PURWA integrates a different GPU. >>>> - USB0 — PURWA uses a PS8833 retimer, while HAMOA employs an FSUSB42 as the >>>> SBU switch. >>>> >>>> Features added and enabled: >>>> - UART >>>> - On-board regulators >>>> - Regulators on the SOM >>>> - PMIC GLINK >>>> - USB0 through USB6 and their PHYs >>>> - Embedded USB (eUSB) repeaters >>>> - USB Type-C mux >>>> - PCIe3, PCIe4, PCIe5, PCIe6a >>>> - Reserved memory regions >>>> - Pinctrl >>>> - NVMe >>>> - ADSP, CDSP >>>> - WLAN, Bluetooth (M.2 interface) >>>> - USB DisplayPort and eDP >>>> - Graphics >>>> - Audio >>>> - TPM >>>> >>>> Signed-off-by: Yijie Yang >>>> --- >>>> Changes in v4: >>>> - EDITME: describe what is new in this series revision. >>>> - EDITME: use bulletpoints and terse descriptions. >>> >>> Oh no. B4 probably even warned you about not sending it out. >>> >>> From this changelog I can assume that nothing has changed. Is it >>> correct? >> >> This section was generated automatically by b4 and was not reviewed >> carefully. The actual list of changes is in the section below. > > But why????? Why do you ignore what was done for you and write it on > your own, reversing the order, etc? And even if you decided to ignore it > for any reason, why didn't you delete it? The confusion was caused by mixing b4 and git format-patch to handle fine‑grained patch formatting. The Git configuration Konrad suggested did not work for me. I ran b4 prep --manual-reroll to allow b4 to track the upstream thread, which caused this section to be generated automatically. I did not notice this and mistakenly re‑wrote it myself. > >> >>> >>>> - Link to v3: https://lore.kernel.org/r/20260113-purwa-v3-0-16eefacbdce9@oss.qualcomm.com >>>> >>>> Changes in v2: >>>> - Update the GPU firmware path. >>>> - Update the description in the cover letter. >>>> - Reorder the patches. >>>> - Use separate DTS files for Purwa and Hamoa. >>>> - Update base commit. >>>> - Link to v1: https://lore.kernel.org/all/20251222-purwa-v1-0-14ab9316e5ff@oss.qualcomm.com/ >>>> >>>> Changes in v3: >>>> - Delete unused PMIC and thermal nodes. >>>> - Add WiFi node. >>>> - Add display backlight node. >>>> - Add connectors and VBUS regulators for USB3 and USB6. >>>> - Enable PCIe3 and PCIe5; add PCIe ports along with reset and wake-up GPIOs. >>>> - Link to v2: https://lore.kernel.org/r/20260109-purwa-v2-0-f39ee10684cb@oss.qualcomm.com >>>> >>>> Changes in v4: >>>> - Enable TPM. >>>> - Update the descriptions for video and the USB OF graph. >>>> - Link to v3: https://lore.kernel.org/all/20260113-purwa-v3-0-16eefacbdce9@oss.qualcomm.com/ >> >> Here. >> >>>> >>>> --- >>>> Yijie Yang (4): >>>> dt-bindings: arm: qcom: Document PURWA-IOT-EVK board >>>> firmware: qcom: scm: Allow QSEECOM on PURWA-IOT-EVK >>>> arm64: dts: qcom: Add PURWA-IOT-SOM platform >>>> arm64: dts: qcom: Add base PURWA-IOT-EVK board >>>> >>>> Documentation/devicetree/bindings/arm/qcom.yaml | 6 + >>>> arch/arm64/boot/dts/qcom/Makefile | 1 + >>>> arch/arm64/boot/dts/qcom/purwa-iot-evk.dts | 1549 +++++++++++++++++++++++ >>>> arch/arm64/boot/dts/qcom/purwa-iot-som.dtsi | 685 ++++++++++ >>>> drivers/firmware/qcom/qcom_scm.c | 1 + >>>> 5 files changed, 2242 insertions(+) >>>> --- >>>> base-commit: 377054868ffa544991cc491ecc4016589fc58565 >>>> change-id: 20251113-purwa-907ec75b4959 >>>> >>>> Best regards, >>>> -- >>>> Yijie Yang >>>> >>> >> >> -- >> Best Regards, >> Yijie >> > -- Best Regards, Yijie