linux-kernel - Re: [PATCH v4 1/5] platform: Add Surface platform directory

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Date:   Fri, 9 Oct 2020 17:25:11 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Maximilian Luz <luzmaximilian@...il.com>
Cc:     Platform Driver <platform-driver-x86@...r.kernel.org>,
        Darren Hart <dvhart@...radead.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <mgross@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Gayatri Kammela <gayatri.kammela@...el.com>,
        Enric Balletbo i Serra <enric.balletbo@...labora.com>,
        Blaž Hrastnik <blaz@...n.io>,
        Stephen Just <stephenjust@...il.com>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        Benjamin Tissoires <benjamin.tissoires@...hat.com>,
        Chen Yu <yu.c.chen@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 1/5] platform: Add Surface platform directory

On Fri, Oct 9, 2020 at 5:11 PM Maximilian Luz <luzmaximilian@...il.com> wrote:
>
> It may make sense to split the Microsoft Surface hardware platform
> drivers out to a separate subdirectory, since some of it may be shared
> between ARM and x86 in the future (regarding devices like the Surface
> Pro X).
>
> Further, newer Surface devices will require additional platform drivers
> for fundamental support (mostly regarding their embedded controller),
> which may also warrant this split from a size perspective.
>
> This commit introduces a new platform/surface subdirectory for the
> Surface device family, with subsequent commits moving existing Surface
> drivers over from platform/x86.
>
> A new MAINTAINERS entry is added for this directory. Patches to files in
> this directory will be taken up by the platform-drivers-x86 team (i.e.
> Hans de Goede and Mark Gross) after they have been reviewed by
> Maximilian Luz.

Reviewed-by: Andy Shevchenko <andy.shevchenko@...il.com>

> Signed-off-by: Maximilian Luz <luzmaximilian@...il.com>
> ---
>
> Changes in v2:
>  - Do not create a separate MAINTAINERS entry for platform/surface.
>    Instead add drivers/platform/surface to x86 platform drivers entry.
>    This incorporates recent changes in the x86 platform driver
>    MAINTAINERS entry.
>  - Fix typo in commit message.
>
> Changes in v3:
>  - Add separate MAINTAINERS entry for platform/surface
>  - Add Maximilian Luz as reviewer for platform/surface
>
> Changes in v4:
>  - Rename MAINTAINERS entry to be similar to platform/chrome.
>  - Rename Kconfig options to be similar to platform/chrome
>    (PLATFORM -> PLATFORMS)
>  - Drop placeholder comments.
>
> ---
>  MAINTAINERS                       |  9 +++++++++
>  drivers/platform/Kconfig          |  2 ++
>  drivers/platform/Makefile         |  1 +
>  drivers/platform/surface/Kconfig  | 14 ++++++++++++++
>  drivers/platform/surface/Makefile |  5 +++++
>  5 files changed, 31 insertions(+)
>  create mode 100644 drivers/platform/surface/Kconfig
>  create mode 100644 drivers/platform/surface/Makefile
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 2a2170ff3a91..9fea3ce2db2d 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -11532,6 +11532,15 @@ F:     drivers/scsi/smartpqi/smartpqi*.[ch]
>  F:     include/linux/cciss*.h
>  F:     include/uapi/linux/cciss*.h
>
> +MICROSOFT SURFACE HARDWARE PLATFORM SUPPORT
> +M:     Hans de Goede <hdegoede@...hat.com>
> +M:     Mark Gross <mgross@...ux.intel.com>
> +M:     Maximilian Luz <luzmaximilian@...il.com>
> +L:     platform-driver-x86@...r.kernel.org
> +S:     Maintained
> +T:     git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
> +F:     drivers/platform/surface/
> +
>  MICROSOFT SURFACE PRO 3 BUTTON DRIVER
>  M:     Chen Yu <yu.c.chen@...el.com>
>  L:     platform-driver-x86@...r.kernel.org
> diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
> index 971426bb4302..18fc6a08569e 100644
> --- a/drivers/platform/Kconfig
> +++ b/drivers/platform/Kconfig
> @@ -13,3 +13,5 @@ source "drivers/platform/chrome/Kconfig"
>  source "drivers/platform/mellanox/Kconfig"
>
>  source "drivers/platform/olpc/Kconfig"
> +
> +source "drivers/platform/surface/Kconfig"
> diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
> index 6fda58c021ca..4de08ef4ec9d 100644
> --- a/drivers/platform/Makefile
> +++ b/drivers/platform/Makefile
> @@ -9,3 +9,4 @@ obj-$(CONFIG_MIPS)              += mips/
>  obj-$(CONFIG_OLPC_EC)          += olpc/
>  obj-$(CONFIG_GOLDFISH)         += goldfish/
>  obj-$(CONFIG_CHROME_PLATFORMS) += chrome/
> +obj-$(CONFIG_SURFACE_PLATFORMS)        += surface/
> diff --git a/drivers/platform/surface/Kconfig b/drivers/platform/surface/Kconfig
> new file mode 100644
> index 000000000000..b67926ece95f
> --- /dev/null
> +++ b/drivers/platform/surface/Kconfig
> @@ -0,0 +1,14 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +#
> +# Microsoft Surface Platform-Specific Drivers
> +#
> +
> +menuconfig SURFACE_PLATFORMS
> +       bool "Microsoft Surface Platform-Specific Device Drivers"
> +       default y
> +       help
> +         Say Y here to get to see options for platform-specific device drivers
> +         for Microsoft Surface devices. This option alone does not add any
> +         kernel code.
> +
> +         If you say N, all options in this submenu will be skipped and disabled.
> diff --git a/drivers/platform/surface/Makefile b/drivers/platform/surface/Makefile
> new file mode 100644
> index 000000000000..3700f9e84299
> --- /dev/null
> +++ b/drivers/platform/surface/Makefile
> @@ -0,0 +1,5 @@
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Makefile for linux/drivers/platform/surface
> +# Microsoft Surface Platform-Specific Drivers
> +#
> --
> 2.28.0
>


-- 
With Best Regards,
Andy Shevchenko