Messages in this thread | | | Date | Mon, 6 Oct 2014 19:47:25 +0100 | From | Matthew Garrett <> | Subject | Re: [PATCH 1/4] ata: ahci_platform: Add ACPI support for AMD Seattle SATA controller |
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On Mon, Oct 06, 2014 at 08:44:35PM +0200, Arnd Bergmann wrote: > On Monday 06 October 2014 19:21:53 Matthew Garrett wrote: > > Unfortunately not. I'd assume that PM registers are expected to be > > accessed via the _PS* methods instead. Does MSI make sense outside the > > context of PCI interrupts? > > Yes, the ARM GIC has a weird sense of what MSI is used for, and > apparently some SoC vendors have started using MSI by default for > all on-chip peripherals. > > A patch series to extend MSI to platform devices is currently > under review.
Mm. Yeah, it doesn't seem like there's any ACPI-defined mechanism for MSI control. Let's chat about this next week?
-- Matthew Garrett | mjg59@srcf.ucam.org
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