Re: [PATCH] mailbox: add ACPI support for mailbox framework

From: Mika Westerberg
Date: Wed Apr 01 2015 - 03:48:10 EST


On Tue, Mar 31, 2015 at 02:18:00PM -0700, Feng Kan wrote:
> This will add support for ACPI parsing of the mboxes attribute
> when booting with ACPI table. The client will have a attribute
> mimic the dts call "mboxes". In the ACPI case, the client will
> mark "mboxes" with the ACPI HID of the mbox it wishes to use.
>
> Name (_DSD, Package () {
> ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
> Package () {
> Package (2) {"mboxes", "ACPIHID"},
> }
> })

Instead of this, why not match against the DT compatible property?

Name (_HID, "PRP0001")

Name (_DSD, Package () {
ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"),
Package () {
Package (2) {"compatible", "your-dt-compatible-string"},
}
})

This all will be done for you automatically with zero changes in the
code.
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