linux-kernel - Re: [PATCH 0/2] Add Mailbox support for TI K3 SoCs

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Message-ID: <47b8f278-85ff-18be-d5a0-fde9de6e17f2@ti.com>
Date:   Mon, 24 Jun 2019 15:39:34 -0500
From:   Suman Anna <s-anna@...com>
To:     Jassi Brar <jassisinghbrar@...il.com>,
        Rob Herring <robh+dt@...nel.org>
CC:     <devicetree@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] Add Mailbox support for TI K3 SoCs

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(-)
>