Re: [PATCH v6 0/4] arm64: dts: qcom: Introduce Glymur SoC dtsi and Glymur CRD dts

[Pankaj Patil <pankaj.patil@oss.qualcomm.com>]

On 1/29/2026 6:51 AM, Bjorn Andersson wrote:
> On Thu, Jan 22, 2026 at 08:53:57PM +0530, Pankaj Patil wrote:
>> Introduce dt-bindings and initial device tree support for Glymur,
>> Qualcomm's next-generation compute SoC and it's associated
>> Compute Reference Device (CRD) platform.
>>
>> https://www.qualcomm.com/products/mobile/snapdragon/laptops-and-tablets/snapdragon-x2-elite
>> https://www.qualcomm.com/news/releases/2025/09/new-snapdragon-x2-elite-extreme-and-snapdragon-x2-elite-are-the-
>>
>> The base support enables booting to shell with rootfs on NVMe,
>> demonstrating functionality for PCIe and NVMe subsystems.
>> DCVS is also enabled, allowing dynamic frequency scaling for the CPUs.
>> TSENS (Thermal Sensors) enabled for monitoring SoC temperature and
>> thermal management. The platform is capable of booting kernel at EL2
>> with kvm-unit tests performed on it for sanity.
>>
>> Added dtsi files for the PMIC's enabled PMH0101, PMK8850, PMCX0102,
>> SMB2370, PMH0104, PMH0110 along with temp-alarm and GPIO nodeS.
>>
>> For CPU compatible naming, there is one discussion which is not specific
>> to Glymur, Kaanapali and Glymur use the same Oryon cores.
>> https://lore.kernel.org/all/20251119-oryon-binding-v1-1-f79a101b0391@oss.qualcomm.com/
>> We've kept the "qcom,oryon" compatible
>>
>> Features enabled in this patchset:
>> 1. NVMe storage support
>> 2. PCIe controller and PCIe PHY
>> 3. RPMH Regulators
>> 4. Clocks and reset controllers - GCC, TCSRCC, DISPCC, RPMHCC
>> 5. Interrupt controller
>> 6. TLMM (Top-Level Mode Multiplexer)
>> 7. QUP Block
>> 8. Reserved memory regions
>> 9. PMIC support with regulators
>> 10. CPU Power Domains
>> 11. TSENS (Thermal Sensors)
>> 12. DCVS: CPU DCVS with scmi perf protocol
>>
>> Dependencies:
>>
>> dt-bindings:
>> 1. https://lore.kernel.org/all/20260121-glymur-pmic-mfd-v1-1-2aab4f21e79c@oss.qualcomm.com/
>> 2. https://lore.kernel.org/all/20251215-knp-pmic-leds-v3-2-5e583f68b0e5@oss.qualcomm.com/
>> 3. https://lore.kernel.org/all/20260121110828.2267061-1-pankaj.patil@oss.qualcomm.com/
>> 4. https://lore.kernel.org/all/20260111155234.5829-1-pankaj.patil@oss.qualcomm.com/
>>
>> Linux-next based tree with Glymur patches is available at:
>> https://git.codelinaro.org/clo/linux-kernel/kernel-qcom/-/tree/b4/v6_glymur_introduction
>>
> 
> FWIW, I applied these patches onto next-20260128 to see if things has
> improved since Rob's report and I get:
> 
> $ make qcom/glymur-crd.dtb CHECK_DTBS=1
>   DTC [C] arch/arm64/boot/dts/qcom/glymur-crd.dtb
> qcom/glymur-crd.dtb: dma-controller@800000 (qcom,glymur-gpi-dma): interrupts: [[0, 588, 4], [0, 589, 4], [0, 590, 4], [0, 591, 4], [0, 592, 4], [0, 593, 4], [0, 594, 4], [0, 595, 4], [0, 596, 4], [0, 597, 4], [0, 598, 4], [0, 599, 4], [2, 129, 4], [2, 130, 4], [2, 131, 4], [2, 132, 4]] is too long
>         from schema $id: http://devicetree.org/schemas/dma/qcom,gpi.yaml#
> qcom/glymur-crd.dtb: dma-controller@a00000 (qcom,glymur-gpi-dma): interrupts: [[0, 279, 4], [0, 280, 4], [0, 281, 4], [0, 282, 4], [0, 283, 4], [0, 284, 4], [0, 293, 4], [0, 294, 4], [0, 295, 4], [0, 296, 4], [0, 297, 4], [0, 298, 4], [2, 124, 4], [2, 125, 4], [2, 126, 4], [2, 127, 4]] is too long
>         from schema $id: http://devicetree.org/schemas/dma/qcom,gpi.yaml#
> qcom/glymur-crd.dtb: dma-controller@b00000 (qcom,glymur-gpi-dma): interrupts: [[2, 76, 4], [2, 77, 4], [2, 78, 4], [2, 79, 4], [2, 80, 4], [2, 81, 4], [2, 82, 4], [2, 83, 4], [2, 84, 4], [2, 85, 4], [2, 86, 4], [2, 87, 4], [2, 88, 4], [2, 89, 4], [2, 90, 4], [2, 91, 4]] is too long
>         from schema $id: http://devicetree.org/schemas/dma/qcom,gpi.yaml#
> qcom/glymur-crd.dtb: pmic@1 (qcom,pmh0101): led-controller@ee00:compatible:0: 'qcom,pmh0101-flash-led' is not one of ['qcom,pm6150l-flash-led', 'qcom,pm660l-flash-led', 'qcom,pm7550-flash-led', 'qcom,pm8150c-flash-led', 'qcom,pm8150l-flash-led', 'qcom,pm8350c-flash-led', 'qcom,pm8550-flash-led', 'qcom,pmi8998-flash-led']
>         from schema $id: http://devicetree.org/schemas/mfd/qcom,spmi-pmic.yaml#
> qcom/glymur-crd.dtb: pmic@1 (qcom,pmh0101): pwm:compatible: 'oneOf' conditional failed, one must be fixed:
>         ['qcom,pmh0101-pwm', 'qcom,pm8350c-pwm'] is too long
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm660l-lpg', 'qcom,pm8150b-lpg', 'qcom,pm8150l-lpg', 'qcom,pm8350c-pwm', 'qcom,pm8916-pwm', 'qcom,pm8941-lpg', 'qcom,pm8994-lpg', 'qcom,pmc8180c-lpg', 'qcom,pmi632-lpg', 'qcom,pmi8950-pwm', 'qcom,pmi8994-lpg', 'qcom,pmi8998-lpg', 'qcom,pmk8550-pwm']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm6150l-lpg']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm8550-pwm']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm8937-pwm']
>         'qcom,pm8150l-lpg' was expected
>         'qcom,pm8916-pwm' was expected
>         from schema $id: http://devicetree.org/schemas/mfd/qcom,spmi-pmic.yaml#
> qcom/glymur-crd.dtb: led-controller@ee00 (qcom,pmh0101-flash-led): compatible:0: 'qcom,pmh0101-flash-led' is not one of ['qcom,pm6150l-flash-led', 'qcom,pm660l-flash-led', 'qcom,pm7550-flash-led', 'qcom,pm8150c-flash-led', 'qcom,pm8150l-flash-led', 'qcom,pm8350c-flash-led', 'qcom,pm8550-flash-led', 'qcom,pmi8998-flash-led']
>         from schema $id: http://devicetree.org/schemas/leds/qcom,spmi-flash-led.yaml#
> qcom/glymur-crd.dtb: /soc@0/arbiter@c400000/spmi@c426000/pmic@1/led-controller@ee00: failed to match any schema with compatible: ['qcom,pmh0101-flash-led', 'qcom,spmi-flash-led']
> qcom/glymur-crd.dtb: pwm (qcom,pmh0101-pwm): compatible: 'oneOf' conditional failed, one must be fixed:
>         ['qcom,pmh0101-pwm', 'qcom,pm8350c-pwm'] is too long
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm660l-lpg', 'qcom,pm8150b-lpg', 'qcom,pm8150l-lpg', 'qcom,pm8350c-pwm', 'qcom,pm8916-pwm', 'qcom,pm8941-lpg', 'qcom,pm8994-lpg', 'qcom,pmc8180c-lpg', 'qcom,pmi632-lpg', 'qcom,pmi8950-pwm', 'qcom,pmi8994-lpg', 'qcom,pmi8998-lpg', 'qcom,pmk8550-pwm']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm6150l-lpg']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm8550-pwm']
>         'qcom,pmh0101-pwm' is not one of ['qcom,pm8937-pwm']
>         'qcom,pm8150l-lpg' was expected
>         'qcom,pm8916-pwm' was expected
>         from schema $id: http://devicetree.org/schemas/leds/leds-qcom-lpg.yaml#
> qcom/glymur-crd.dtb: /soc@0/arbiter@c400000/spmi@c426000/pmic@1/pwm: failed to match any schema with compatible: ['qcom,pmh0101-pwm', 'qcom,pm8350c-pwm']
> 
> So, we're still missing a few dependencies.
qcom,pmh0101-flash-led and qcom,pmh0101-pwm are part of lee's for-leds-next
tree but don't see them in next
https://git.kernel.org/pub/scm/linux/kernel/git/lee/leds.git/log/?h=for-leds-next

The interrupt maxItems has been acked by rob but not picked up by vinod yet
https://lore.kernel.org/all/20260121110828.2267061-1-pankaj.patil@oss.qualcomm.com/
> 
> 
> Booting the system I get a ton of errors from PCIe in the kernel log:
> 
> debugfs: 'opp:5000000' already exists in 'soc@0-1c00000.pci'
> 
> # dmesg | grep -E 'debugfs: .+ already exists' |wc -l
> 508
> 
> The system does eventually boot, and I was happy to see that we do end
> up finding the PCIe devices after all.
> 
> Regards,
> Bjorn