Il 07/06/23 06:46, Chen-Yu Tsai ha scritto:
On Tue, Jun 6, 2023 at 8:21 PM Tony Lindgren <tony@xxxxxxxxxxx> wrote:
* Chen-Yu Tsai <wenst@xxxxxxxxxxxx> [230606 09:17]:
I ended up following 8250_dw's design, which seemed less convoluted.
The original code was waaay too convoluted.
OK that looks good to me thanks. Good to hear you got it sorted out.
The 8250_dw style runtime PM is a good solution for simple cases. Where
it won't work are SoCs where runtime PM calls need to propagate up the
bus hierarchy. For example, 8250_omap needs runtime PM calls for the
interconnect and power domain to get register access working.
Good to know. On MediaTek platforms I don't think there are any power
domains covering the basic peripherals. (Or it's hidden from the kernel.)
On (relatively) new SoCs, basic peripherals are always powered, you're correct.
Cheers,
Angelo
BTW, the Bluetooth breakage seems like a different problem.
OK seems like we're good to go then :)
Yup. After a bit more testing, it seems the Bluetooth problem is more like
an undervolt issue. If I have WiFi and BT probe at the same time, Bluetooth
fails. If they probe separately, everything works fine.
ChenYu
