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[0/2] Add Mailbox support for TI K3 SoCs

Message ID 20190604170146.12205-1-s-anna@ti.com
Headers show
Series Add Mailbox support for TI K3 SoCs | expand

Message

Suman Anna June 4, 2019, 5:01 p.m. UTC
Hi Jassi,

The following series adds the support for the Mailbox IP present
within the Main NavSS module on the newer TI K3 AM65x and J721E SoCs.

The Mailbox IP is similar to the previous generation IP on OMAP SoCs
with a few differences:
 - Multiple IP instances from previous DRA7/AM57 family each form a
   cluster and are part of the same IP. The driver support will continue
   to be based on a cluster.
 - The IP is present within a Main NaVSS, and interrupts have to go
   through an Interrupt Router within Main NavSS before they reach the
   respective processor sub-system's interrupt controllers.
 - The register layout is mostly same, with difference in two registers

Support is added by enhancing the existing OMAP Mailbox driver to 
support the K3 IP using a new compatible. The driver also has to be
adjusted to deal with the 32-bit mailbox payloads vs the 64-bit 
pointers used by the Mailbox API on these Arm v8 platforms.

DT nodes will be posted separately once the binding is acked.

regards
Suman

Suman Anna (2):
  dt-bindings: mailbox: omap: Update bindings for TI K3 SoCs
  mailbox/omap: Add support for TI K3 SoCs

 .../bindings/mailbox/omap-mailbox.txt         | 59 ++++++++++++++++---
 drivers/mailbox/Kconfig                       |  2 +-
 drivers/mailbox/omap-mailbox.c                | 43 ++++++++------
 include/linux/omap-mailbox.h                  |  4 +-
 4 files changed, 80 insertions(+), 28 deletions(-)

Comments

Suman Anna June 24, 2019, 8:39 p.m. UTC | #1
Hi Jassi,

On 6/4/19 12:01 PM, Suman Anna wrote:
> Hi Jassi,
> 
> The following series adds the support for the Mailbox IP present
> within the Main NavSS module on the newer TI K3 AM65x and J721E SoCs.
> 
> The Mailbox IP is similar to the previous generation IP on OMAP SoCs
> with a few differences:
>  - Multiple IP instances from previous DRA7/AM57 family each form a
>    cluster and are part of the same IP. The driver support will continue
>    to be based on a cluster.
>  - The IP is present within a Main NaVSS, and interrupts have to go
>    through an Interrupt Router within Main NavSS before they reach the
>    respective processor sub-system's interrupt controllers.
>  - The register layout is mostly same, with difference in two registers
> 
> Support is added by enhancing the existing OMAP Mailbox driver to 
> support the K3 IP using a new compatible. The driver also has to be
> adjusted to deal with the 32-bit mailbox payloads vs the 64-bit 
> pointers used by the Mailbox API on these Arm v8 platforms.
> 
> DT nodes will be posted separately once the binding is acked.

Can you please pick this series up for 5.3 merge window if you do not
have any comments.

Thanks,
Suman

> 
> Suman Anna (2):
>   dt-bindings: mailbox: omap: Update bindings for TI K3 SoCs
>   mailbox/omap: Add support for TI K3 SoCs
> 
>  .../bindings/mailbox/omap-mailbox.txt         | 59 ++++++++++++++++---
>  drivers/mailbox/Kconfig                       |  2 +-
>  drivers/mailbox/omap-mailbox.c                | 43 ++++++++------
>  include/linux/omap-mailbox.h                  |  4 +-
>  4 files changed, 80 insertions(+), 28 deletions(-)
>
Jassi Brar June 24, 2019, 10:21 p.m. UTC | #2
On Mon, Jun 24, 2019 at 3:39 PM Suman Anna <s-anna@ti.com> wrote:
>
> Hi Jassi,
>
> On 6/4/19 12:01 PM, Suman Anna wrote:
> > Hi Jassi,
> >
> > The following series adds the support for the Mailbox IP present
> > within the Main NavSS module on the newer TI K3 AM65x and J721E SoCs.
> >
> > The Mailbox IP is similar to the previous generation IP on OMAP SoCs
> > with a few differences:
> >  - Multiple IP instances from previous DRA7/AM57 family each form a
> >    cluster and are part of the same IP. The driver support will continue
> >    to be based on a cluster.
> >  - The IP is present within a Main NaVSS, and interrupts have to go
> >    through an Interrupt Router within Main NavSS before they reach the
> >    respective processor sub-system's interrupt controllers.
> >  - The register layout is mostly same, with difference in two registers
> >
> > Support is added by enhancing the existing OMAP Mailbox driver to
> > support the K3 IP using a new compatible. The driver also has to be
> > adjusted to deal with the 32-bit mailbox payloads vs the 64-bit
> > pointers used by the Mailbox API on these Arm v8 platforms.
> >
> > DT nodes will be posted separately once the binding is acked.
>
> Can you please pick this series up for 5.3 merge window if you do not
> have any comments.
>
I will. Usually I leave the code to cook in the open for as long as
possible, more so when no acks are coming.
Cheers!