linux-kernel - [PATCH v2 1/5] platform: Add Surface platform directory

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Message-Id: <20201005160307.39201-2-luzmaximilian@gmail.com>
Date:   Mon,  5 Oct 2020 18:03:03 +0200
From:   Maximilian Luz <luzmaximilian@...il.com>
To:     platform-driver-x86@...r.kernel.org
Cc:     Andy Shevchenko <andy.shevchenko@...il.com>,
        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@...r.kernel.org,
        Maximilian Luz <luzmaximilian@...il.com>
Subject: [PATCH v2 1/5] platform: Add Surface platform directory

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.

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.

---
 MAINTAINERS                       |  1 +
 drivers/platform/Kconfig          |  2 ++
 drivers/platform/Makefile         |  1 +
 drivers/platform/surface/Kconfig  | 20 ++++++++++++++++++++
 drivers/platform/surface/Makefile |  7 +++++++
 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 b1c97a16b6ce..21b4b4c975b3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -18863,6 +18863,7 @@ L:	platform-driver-x86@...r.kernel.org
 S:	Maintained
 T:	git git://git.infradead.org/linux-platform-drivers-x86.git
 F:	drivers/platform/olpc/
+F:	drivers/platform/surface/
 F:	drivers/platform/x86/
 
 X86 PLATFORM DRIVERS - ARCH
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..af62d93f0e46 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_PLATFORM)	+= surface/
diff --git a/drivers/platform/surface/Kconfig b/drivers/platform/surface/Kconfig
new file mode 100644
index 000000000000..806b088ddae2
--- /dev/null
+++ b/drivers/platform/surface/Kconfig
@@ -0,0 +1,20 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Microsoft Surface Platform-Specific Drivers
+#
+
+menuconfig SURFACE_PLATFORM
+	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.
+
+if SURFACE_PLATFORM
+
+# place Microsoft Surface platform drivers here
+
+endif # SURFACE_PLATFORM
diff --git a/drivers/platform/surface/Makefile b/drivers/platform/surface/Makefile
new file mode 100644
index 000000000000..11788a44713f
--- /dev/null
+++ b/drivers/platform/surface/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for linux/drivers/platform/surface
+# Microsoft Surface Platform-Specific Drivers
+#
+
+# place Microsoft Surface platform drivers here
-- 
2.28.0