linux-kernel - Re: [PATCH 00/10] platform/chrome: cros_ec

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Message-ID: <Y7K94bWTsJ0r28f9@kuha.fi.intel.com>
Date:   Mon, 2 Jan 2023 13:20:01 +0200
From:   Heikki Krogerus <heikki.krogerus@...ux.intel.com>
To:     Prashant Malani <pmalani@...omium.org>
Cc:     linux-kernel@...r.kernel.org, chrome-platform@...ts.linux.dev,
        Benson Leung <bleung@...omium.org>,
        Daisuke Nojiri <dnojiri@...omium.org>,
        "Dustin L. Howett" <dustin@...ett.net>,
        Evan Green <evgreen@...omium.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Guenter Roeck <groeck@...omium.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Lee Jones <lee.jones@...aro.org>, Lee Jones <lee@...nel.org>,
        Sebastian Reichel <sebastian.reichel@...labora.com>,
        Stephen Boyd <swboyd@...omium.org>,
        Tinghan Shen <tinghan.shen@...iatek.com>,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Xiang wangx <wangxiang@...rlc.com>
Subject: Re: [PATCH 00/10] platform/chrome: cros_ec_typec: VDM support

On Wed, Dec 28, 2022 at 12:45:03AM +0000, Prashant Malani wrote:
> This series adds support for sending and receiving USB PD Vendor
> Defined Messages (VDMs) between the Application Processor's Type-C
> ports and connected peripherals.
> 
> Thir enables the Application processor to enter alternate modes and
> process VDMs directly, instead of relying on state machines that exist
> inside of co-processors like the ChromeOS Embedded Controller (EC).
> 
> Patch 1/10 reverts an incorrect EC header modification.
> Patch 2/10 to 5/10 update headers and existing Type-C structs to
> accommodate the VDM code.
> Patch 6/10 and 7/10 prepare the Type-C driver to have more than 1 file.
> Patch 8/10 to 10/10 introduce the VDM functionality.
> 
> Patch submissions suggestion (if approved):
> - Even though Patch 1 touches drivers/mfd, it would be better to take
>   the entire series through the cbrome-platform branch, to avoid
>   cross-dependencies across maintainer trees.

For the whole series, FWIW:

Acked-by: Heikki Krogerus <heikki.krogerus@...ux.intel.com>

> Prashant Malani (10):
>   Revert "mfd: cros_ec: Add SCP Core-1 as a new CrOS EC MCU"
>   platform_chrome: cros_ec: Add Type-C VDM defines
>   platform/chrome: cros_ec_typec: Stash port driver info
>   platform/chrome: cros_ec_typec: Set port alt mode drvdata
>   platform/chrome: cros_ec_typec: Update port DP VDO
>   platform/chrome: cros_ec_typec: Move structs to header
>   platform/chrome: cros_ec_typec: Alter module name with hyphens
>   platform/chrome: cros_ec_typec: Add initial VDM support
>   platform/chrome: cros_typec_vdm: Add VDM reply support
>   platform/chrome: cros_typec_vdm: Add VDM send support
> 
>  MAINTAINERS                                   |   3 +-
>  drivers/mfd/cros_ec_dev.c                     |   5 -
>  drivers/platform/chrome/Kconfig               |   2 +-
>  drivers/platform/chrome/Makefile              |   3 +-
>  drivers/platform/chrome/cros_ec_typec.c       |  91 +++------------
>  drivers/platform/chrome/cros_ec_typec.h       |  85 ++++++++++++++
>  drivers/platform/chrome/cros_typec_vdm.c      | 106 ++++++++++++++++++
>  drivers/platform/chrome/cros_typec_vdm.h      |  12 ++
>  .../linux/platform_data/cros_ec_commands.h    |  53 ++++++++-
>  include/linux/platform_data/cros_ec_proto.h   |   1 -
>  10 files changed, 276 insertions(+), 85 deletions(-)
>  create mode 100644 drivers/platform/chrome/cros_ec_typec.h
>  create mode 100644 drivers/platform/chrome/cros_typec_vdm.c
>  create mode 100644 drivers/platform/chrome/cros_typec_vdm.h

-- 
heikki