arm64/qcom: Switch Nord CDSPs from MX to NMXC power domain - #988
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Komal Bajaj (Komal-Bajaj) merged 4 commits intoAug 20, 2026
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Nord routes the NSP (compute DSP) memory rail through a dedicated NMXC resource instead of the shared MX rail. Add the index so device trees can reference it. Signed-off-by: Anurag Pateriya <anurag.pateriya@oss.qualcomm.com>
| .res_name = "gmxc.lvl", | ||
| }; | ||
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| static struct rpmhpd nmxc = { |
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Add the nmxc.lvl RPMh resource and register it in the Nord power domain table. Nord supplies the NSP memory rail from this dedicated resource rather than from the shared MX rail, so consumers need it exposed as its own power domain. Signed-off-by: Anurag Pateriya <anurag.pateriya@oss.qualcomm.com>
The Nord CDSP subsystems keep their memory rail on the dedicated NMXC resource, not on the shared MX rail. Replace "mx" with "nmxc" in the proxy power domain list of all four CDSP resources so the correct rail is held during PAS authentication and boot. Signed-off-by: Anurag Pateriya <anurag.pateriya@oss.qualcomm.com>
… domain Point the CDSP0-3 remoteproc nodes at the dedicated NMXC power domain instead of the shared MX rail, matching the power topology of the Nord NSP subsystems and the proxy power domain list in the PAS driver. Include <dt-bindings/power/qcom,rpmhpd.h> in place of the legacy qcom-rpmpd.h, as that is where the RPMHPD_* indices used here are defined. Signed-off-by: Anurag Pateriya <anurag.pateriya@oss.qualcomm.com>
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The CDSP subsystems on Nord keep their memory rail on a dedicated NMXC resource rather than the shared MX rail used by other subsystems. Keeping the driver's proxy power-domain list and the DT power-domain references in sync with this dedicated rail is required for correct power sequencing during PAS authentication/boot of the four CDSP remoteprocs.
Dependency ordering
Binding → pmdomain driver → PAS driver → DT, so that each consumer of RPMHPD_NMXC/"nmxc" builds against a tree where the index/resource already exists.