On 1/14/2025 10:46 PM, Ricky Cheung wrote:
Good evening. This patch adds support for the XiaoXun JZ0145 v33 4G LTE WiFi modem based on the MSM8916 chipset by a new manufacturer / vendor for the Linux Kernel called called XiaoXun BiCheng Technology. Below is some information about these changes.
I'm glad to see another msm8916-ufi.dtsi user in mainline. But this patchset still contains some errors and needs to be fixed before getting applied.
Addition of a new vendor prefix ---------- XiaoXun BiCheng Technology is not well known in that they don't seem to have a presence in the Western world. I purchased my own modem on TaoBao, which requires stores to registered as businesses, so I believe it is justified to add it as a vendor prefix. Note that the company appears to have shut down just this month.
Be sure to know the real manufacturer rather than a random store. For example, we know most Xiaomi phones are actually manufactured and designed by Wingtech(闻泰) rather Xiaomi, so the dts for them are wingtech-msm8916-xxxx etc.. The same logic applies to the UFI dongles too. Try to get the box of your dongle and see if you can find the real vendor design the board rather than the company who just sells them.
Status of patch ---------- This device shares many similarities to pre-existing devices within arch/arm64/boot/dts/msm8916-ufi.dtsi, so I am sure most features would function with the correct firmware on this device. However, due to the poor quality of these devices, my unit's EMMC has failed and I cannot conduct further tests. Previous, the modem was able to boot with devicetree of a UZ801, albeit with LED and Modem issues, which is addressed in this patch. I have sent the code for testing to some kind folks on the Internet with good outcomes, so do consider this code as ready and functional. This patch was also reviewed over at the msm8916-mainline organization and deemed ready by the maintainer: https://github.com/msm8916-mainline/linux/pull/386 Note that this is my first patch to the LKML, so if there's something I did wrong / the patch is missing, please point it out. Best Regards, Ricky Cheung Tipz Team Signed-off-by: Ricky Cheung <rcheung844@xxxxxxxxx> --- Changes in v2: - EDITME: describe what is new in this series revision. - EDITME: use bulletpoints and terse descriptions. - Link to v1: https://lore.kernel.org/r/20250114-xiaoxun-jz0145-v33-v1-0-dc51f7ce3bd8@xxxxxxxxx --- Ricky Cheung (3): dt-bindings: vendor-prefixes: Add XiaoXun BiCheng Technology dt-bindings: arm: qcom: Add XiaoXun JZ0145 v33 arm64: dts: qcom: msm8916-xiaoxun-jz0145-v33: Add initial device tree Documentation/devicetree/bindings/arm/qcom.yaml | 1 + .../devicetree/bindings/vendor-prefixes.yaml | 2 + arch/arm64/boot/dts/qcom/Makefile | 1 + .../boot/dts/qcom/msm8916-xiaoxun-jz0145-v33.dts | 66 ++++++++++++++++++++++ 4 files changed, 70 insertions(+) --- base-commit: d390303b28dabbb91b2d32016a4f72da478733b9 change-id: 20250114-xiaoxun-jz0145-v33-23dc006cf130 Best regards,
-- Regards, Yang Xiwen
