Am Donnerstag, 6. März 2025, 17:55:16 MEZ schrieb Jonas Karlman: > Hi Chukun, > > On 2025-03-06 13:38, Chukun Pan wrote: > > The Quality-of-Service (QsS) node stores/restores specific > > register contents when the power domains is turned off/on. > > Add QoS node so that they can connect to the power domain. > > > > Signed-off-by: Chukun Pan <amadeus@xxxxxxxxxx> > > --- > > arch/arm64/boot/dts/rockchip/rk3528.dtsi | 160 +++++++++++++++++++++++ > > 1 file changed, 160 insertions(+) > > > > These QoS node are typically referenced from power domains so that the > PMU driver know what QoS to save/restore when a power domain is power > cycled. > > Vendor kernel only reference the two qos_gpu nodes in it's power domains, > do you have any documentation or knowledge about what power domain the > remaining QoS are related to? I think the GPU actually is the _only_ fully switchable power-domain on the rk3528. The other powerdomains seem to be always on, but can do this idle-request thing. At least that is what I'm reading from the pm-domain definitions in the vendor-kernel, combined with a look at the pmu section of the rk3528 TRM. Heiko
