On 18 November 2014 at 19:51, Ashwin Chaugule <ashwin.chaugule@xxxxxxxxxx> wrote: > On 18 November 2014 08:39, Arnd Bergmann <arnd@xxxxxxxx> wrote: >> On Wednesday 12 November 2014 19:59:38 Ashwin Chaugule wrote: >>> ACPI 5.0+ spec defines a generic mode of communication >>> between the OS and a platform such as the BMC. This medium >>> (PCC) is typically used by CPPC (ACPI CPU Performance management), >>> RAS (ACPI reliability protocol) and MPST (ACPI Memory power >>> states). >>> >>> This patch adds PCC support as a Mailbox Controller. As of >>> ACPI v5.1 there is no provision for clients to lookup mailbox >>> controllers in a way that Linux expects. e.g. in DT the clients >>> can list the mailboxes they can associate with in the DT binding >>> and then provide a unique index to lookup a channel within a mailbox. >>> Since the ACPI spec doesn't have anything similar, we introduce a >>> mailbox controller specific API so that when the client calls it, >>> we know to lookup in the context of a specific controller. This >>> also helps in keeping a consistent interface across DT and ACPI >>> for such drivers. >>> >>> This patch implements basic PCC support using the ACPI v5.1 >>> structures. IRQ mode support will be provided as follow up patches. >>> >>> Reviewed-by: Mark Brown <broonie@xxxxxxxxxx> >>> Signed-off-by: Ashwin Chaugule <ashwin.chaugule@xxxxxxxxxx> >>> >> >> Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx> > > Very much appreciated ! > Thanks for the constructive feedback Arnd, Jassi, Mark, Sudeep, Lv and Rafael! > Jassi, can you please pick this patch? or if you'd prefer, I can send > a git pull for it. > Applied to mailbox-devel, Thanks -Jassi -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
