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. Thanks, Ashwin -- 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
