Re: [PATCH 0/7] arm64: dts: qcom: IdeaCentre Mini 01Q8X10 Hamoa + Purwa

[Mostafa Saleh <smostafa@google.com>]

On Tue, Sep 08, 2026 at 11:39:54AM +0200, Jens Glathe wrote:
> Hi Mostafa,
> 
> On 9/8/26 11:03, Mostafa Saleh wrote:
> > Hi Jens,
> > 
> > On Sat, Sep 05, 2026 at 11:28:55AM +0200, Jens Glathe via B4 Relay wrote:
> > > The IdeaCentre Mini 01Q8X10 (board 91B6) ships with two SoCs: Hamoa
> > > (X1E80100), already upstream, and Purwa (X1P42100 / X1-26-100). Same
> > > chassis, different silicon. Stubble and the DTB loader need distinct
> > > compatibles.
> > > 
> [...]
> > > This series does not apply to ToT nor I can find this base-commit
> > > in it.
> > > 
> > > Does that have any dependency?
> > > 
> > > Thanks,
> > > Mostafa
> 
> No dependencies. But I test if i can apply to torvalds/master

I can't apply it on Linus's tree so I used your next tag + (revert
for the QoS broken patch I mentioned)

The patches doesn't build, I added this for now:
diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index 0cfbf3018a7b..d282ce5635d8 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -173,7 +173,6 @@ dtb-$(CONFIG_ARCH_QCOM)     += purwa-iot-evk.dtb
 purwa-lenovo-ideacentre-mini-01q8x10-el2-dtbs := purwa-lenovo-ideacentre-mini-01q8x10.dtb x1-el2.dtbo
 dtb-$(CONFIG_ARCH_QCOM)        += purwa-lenovo-ideacentre-mini-01q8x10.dtb purwa-lenovo-ideacentre-mini-01q8x10-el2.dtb

-dtb-$(CONFIG_ARCH_QCOM)        += purwa-iot-evk-el2.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-fairphone-fp5.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-idp.dtb
 dtb-$(CONFIG_ARCH_QCOM)        += qcm6490-particle-tachyon.dtb


I can't boot in EL2 (with purwa-lenovo-ideacentre-mini-01q8x10-el2.dtb):
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x512f0011]
[    0.000000] Linux version 7.3.0-rc1-next-20260904-g505bc4a244a7-dirty (smostafa@mostafa1.c.googlers.com) (Debian clang version 21.1.8 (3), Debian LLD 21.1.8) #2 SMP
PREEMPT Tue Sep  8 10:10:35 UTC 2026
[    0.000000] KASLR enabled
[    0.000000] Machine model: Lenovo IdeaCentre Mini 01Q8X10 (Purwa)
[    0.000000] earlycon: qcom_geni0 MMIO:0x0000000000894000 (options '')
[    0.000000] printk: legacy bootconsole [qcom_geni0] enabled
[    0.000000] CPU features: SYS_ID_AA64MMFR0_EL1[63:60]: forced to 1
[    0.000000] arch_timer: [Firmware Bug]: VHE-capable CPU without EL2 virtual timer interrupt
[    0.191075] qcom_scm firmware:scm: qseecom: scm call failed with error -22
[    0.198139] qcom_qseecom qcom_qseecom: probe with driver qcom_qseecom failed with error -22
[    0.227426] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x86cd79c0, fsynr=0x400010, cbfrsynra=0x1000, cb=4
[    0.291862] arm-smmu 15000000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x1000
[    0.299508] arm-smmu 15000000.iommu: FSYNR0 = 00400010 [S1CBNDX=64 WNR PLVL=0]
[    0.307018] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x86b020c0, fsynr=0x400040, cbfrsynra=0x1000, cb=4
[    0.318879] arm-smmu 15000000.iommu: FSR    = 00000402 [Format=2 TF], SID=0x1000
[    0.326462] arm-smmu 15000000.iommu: FSYNR0 = 00400040 [S1CBNDX=64 IND PLVL=0]
[    0.333884] arm-smmu 15000000.iommu: Unhandled context fault: fsr=0x402, iova=0x86b020c0, fsynr=0x400040, cbfrsynra=0x1000, cb=4
[a lot more of SMMU errors]

And with in EL1 (with purwa-lenovo-ideacentre-mini-01q8x10.dtb)
[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x512f0011]
[    0.000000] Linux version 7.3.0-rc1-next-20260904-g505bc4a244a7-dirty (smostafa@mostafa1.c.googlers.com) (Debian clang version 21.1.8 (3), Debian LLD 21.1.8) #2 SMP
PREEMPT Tue Sep  8 10:10:35 UTC 2026
[    0.000000] KASLR enabled
[    0.000000] Machine model: Lenovo IdeaCentre Mini 01Q8X10 (Purwa)
[    0.000000] earlycon: qcom_geni0 MMIO:0x0000000000894000 (options '')
[    0.000000] printk: legacy bootconsole [qcom_geni0] enabled
[    0.000000] CPU features: SYS_ID_AA64MMFR0_EL1[63:60]: forced to 1
[    0.000000] ITS@0x0000000017040000: Devices Table too large, reduce ids 32->19
[    0.000000] ITS@0x0000000017040000: Devices too large, reduce ITS pages 1024->256
[    0.223762] remoteproc remoteproc0: Direct firmware load for qcom/x1p42100/LENOVO/91B6/qcadsp8380.mbn failed with error -2
[    0.235468] remoteproc remoteproc0: Direct firmware load for qcom/x1p42100/LENOVO/91B6/qcadsp8380.mbn failed with error -2
[    0.246800] remoteproc remoteproc0: request_firmware failed: -2
[    0.252897] remoteproc remoteproc1: Direct firmware load for qcom/x1p42100/LENOVO/91B6/qccdsp8380.mbn failed with error -2
[    0.261226] qcom-pcie 1bf8000.pcie: supply vdda not found, using dummy regulator
[    0.261707] qcom-pcie 1c00000.pcie: supply vdda not found, using dummy regulator
[    0.261729] qcom-pcie 1c00000.pcie: supply vddpe-3v3 not found, using dummy regulator
[    0.261871] qcom-pcie 1c08000.pcie: supply vdda not found, using dummy regulator
[    0.261889] qcom-pcie 1c08000.pcie: supply vddpe-3v3 not found, using dummy regulator
[    0.279415] remoteproc remoteproc1: Direct firmware load for qcom/x1p42100/LENOVO/91B6/qccdsp8380.mbn failed with error -2
[    0.295042] remoteproc remoteproc1: request_firmware failed: -2
[    0.332189] qcom_pmic_glink pmic-glink: Failed to create device link (0x180) with supplier a600000.usb for /pmic-glink/connector@0
[    0.346753] qcom-pcie 1c08000.pcie: supply vdda not found, using dummy regulator
[    0.349142] ------------[ cut here ]------------
[    0.354378] qcom-pcie 1c08000.pcie: supply vddpe-3v3 not found, using dummy regulator
[    0.359106] disp_cc_mdss_dptx1_link_clk_src: rcg didn't update its configuration.
[    0.367176] WARNING: drivers/clk/qcom/clk-rcg2.c:136 at update_config+0xd4/0xe8, CPU#2: kworker/u33:0/56
[    0.384583] Modules linked in:
[    0.387723] CPU: 2 UID: 0 PID: 56 Comm: kworker/u33:0 Not tainted 7.3.0-rc1-next-20260904-g505bc4a244a7-dirty #2 PREEMPT
[    0.398963] Hardware name: LENOVO 91B6CTO1WW/3796, BIOS O6NKT3BA 05/02/2025
[    0.406111] Workqueue: events_unbound deferred_probe_work_func
[    0.412095] pstate: 61400005 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
[    0.419240] pc : update_config+0xd4/0xe8
[    0.423267] lr : update_config+0xd0/0xe8
[    0.427295] sp : ffff80008027b980
[    0.430703] x29: ffff80008027b990 x28: ffff000802f813c0 x27: ffffc1572aad6000
[    0.438024] x26: ffffc1572a4df03f x25: ffffc1572a639ff6 x24: ffffc1572a61b412
[    0.438026] x23: 0000000000000000 x22: 0000000000000002 x21: 0000000000000001
[    0.438028] x20: ffffc1572a4bb085 x19: ffffc1572acfc020 x18: 0000000000000000
[    0.459979] x17: 0000000006af4b93 x16: 0000000000000094 x15: 0000000000100000
[    0.467302] x14: 00000000000066a7 x13: 000000000199e0a9 x12: 00000000000000a5
[    0.474624] x11: 00000000000000c0 x10: 0cf36ad3ab101c53 x9 : a7b4a80d3a726d00
[    0.481946] x8 : a7b4a80d3a726d00 x7 : 0000000000000000 x6 : 000000000000003f
[    0.489268] x5 : 0000000000000040 x4 : 0000000000000000 x3 : 0000000000000001
[    0.496588] x2 : 0000000000100000 x1 : ffff000800c8b000 x0 : 00000000fffffff0
[    0.503913] Call trace:
[    0.506433]  update_config+0xd4/0xe8 (P)
[    0.510464]  clk_rcg2_set_parent+0x58/0x68
[    0.514666]  __clk_set_parent+0x50/0x214
[    0.518696]  clk_core_set_parent_nolock+0xe8/0x1b4
[    0.523611]  clk_set_parent+0xa4/0x13c
[    0.527458]  of_clk_set_defaults+0x2f0/0x644
[    0.531847]  platform_probe+0x38/0x9c
[Many more of those also]

However, booting with the hacked device tree I am using [1]:

[root@alarm ~]# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 002: ID 05e3:0610 Genesys Logic, Inc. Hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 004 Device 002: ID 05e3:0625 Genesys Logic, Inc. USB3.2 Hub
Bus 004 Device 003: ID 0781:5591 SanDisk Corp. Ultra Flair

[root@alarm ~]# lspci
0004:00:00.0 PCI bridge: Qualcomm Technologies, Inc SC8380XP PCIe Root Complex [Snapdragon X / X Plus / X Elite]
0004:01:00.0 Network controller: Qualcomm Technologies, Inc WCN785x Wi-Fi 7(802.11be) 320MHz 2x2 [FastConnect 7800] (rev 01)
0005:00:00.0 PCI bridge: Qualcomm Technologies, Inc SC8380XP PCIe Root Complex [Snapdragon X / X Plus / X Elite]
0005:01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet Controller (rev 1b)
0006:00:00.0 PCI bridge: Qualcomm Technologies, Inc SC8380XP PCIe Root Complex [Snapdragon X / X Plus / X Elite]
0006:01:00.0 Non-Volatile memory controller: SK hynix Platinum P41/PC801 NVMe Solid State Drive

[root@alarm ~]# fastfetch
                  -`                     root@alarm
                 .o+`                    ----------
                `ooo/                    OS: Arch Linux ARM aarch64
               `+oooo:                   Host: 91B6CTO1WW (IdeaCentre Mini 01Q8X10)
              `+oooooo:                  Kernel: Linux 7.3.0-rc1-next-20260904-g505bc4a244a7-dirty
              -+oooooo+:                 Uptime: 3 mins
            `/:-:++oooo+:                Packages: 204 (pacman)
           `/++++/+++++++:               Shell: bash 5.3.15
          `/++++++++++++++:              Terminal: vt220
         `/+++ooooooooooooo/`            CPU: Qualcomm Snapdragon X Elite 1P42100 (8) @ 2.96 GHz
        ./ooosssso++osssssso+`           Memory: 501.91 MiB / 30.74 GiB (2%)
       .oossssso-````/ossssss+`          Swap: Disabled
      -osssssso.      :ssssssso.         Disk (/): 8.77 GiB / 468.38 GiB (2%) - ext4
     :osssssss/        osssso+++.        Locale: C
    /ossssssss/        +ssssooo/-
  `/ossssso+/:-        -:/+osssso+-
 `+sso+:-`                 `.-/+oso:
`++:.                           `-/+/
.`                                 `/


[1] https://lore.kernel.org/all/20260429141815.827157-1-smostafa@google.com/

Thanks,
Mostafa

> 
> with best regards
> 
> Jens
> 
>