[patch v3 1/1] platform/x86: move module mlx-platform from arch/x86 to drivers/platform/x86

[Vadim Pasternak <vadimp@mellanox.com>]

Since mlx-platform is not an architectural driver, it is moved out
of arch/x86/platform to drivers/platform/x86.
Relevant Makefile and Kconfig are updated.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
---
v2->v3:
 Comments pointed out by Andy:
  - Remove "driver" prefix from the subject;
  - Change subject content;
  - Reduce CC list;
  - Put patch history exactly after '---' marker;
  - Remove reference to module name from module header;
  - Explain changes in Kconfig:
    remove "depends on MLX_PLATFORM", since it has default n and this line
	is not needed;
  Fixes added by Vadim:
  - Remove "select MLX_PLATFORM" from Kconfig, since it has unmet direct
    dependencies (X86 && X86_PLATFORM_DEVICES && X86_64);
v1->v2:
 Comments pointed out by Andy:
  - Use -M -C -n option in git format-patch;
---
 MAINTAINERS                                                 |  2 +-
 arch/x86/Kconfig                                            | 12 ------------
 arch/x86/platform/Makefile                                  |  1 -
 arch/x86/platform/mellanox/Makefile                         |  1 -
 drivers/platform/x86/Kconfig                                | 13 ++++++++++++-
 drivers/platform/x86/Makefile                               |  1 +
 .../mellanox => drivers/platform/x86}/mlx-platform.c        |  1 -
 7 files changed, 14 insertions(+), 17 deletions(-)
 delete mode 100644 arch/x86/platform/mellanox/Makefile
 rename {arch/x86/platform/mellanox => drivers/platform/x86}/mlx-platform.c (99%)

diff --git a/MAINTAINERS b/MAINTAINERS
index 3e30399..960f364f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7879,7 +7879,7 @@ MELLANOX PLATFORM DRIVER
 M:      Vadim Pasternak <vadimp@mellanox.com>
 L:      platform-driver-x86@vger.kernel.org
 S:      Supported
-F:      arch/x86/platform/mellanox/mlx-platform.c
+F:      drivers/platform/x86/mlx-platform.c
 
 MELLANOX MLX CPLD HOTPLUG DRIVER
 M:	Vadim Pasternak <vadimp@mellanox.com>
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bada636..ccd5ff7 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -550,18 +550,6 @@ config X86_INTEL_QUARK
 	  Say Y here if you have a Quark based system such as the Arduino
 	  compatible Intel Galileo.
 
-config MLX_PLATFORM
-	tristate "Mellanox Technologies platform support"
-	depends on X86_64
-	depends on X86_EXTENDED_PLATFORM
-	---help---
-	  This option enables system support for the Mellanox Technologies
-	  platform.
-
-	  Say Y here if you are building a kernel for Mellanox system.
-
-	  Otherwise, say N.
-
 config X86_INTEL_LPSS
 	bool "Intel Low Power Subsystem Support"
 	depends on X86 && ACPI
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 3c3c19e..184842e 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -8,7 +8,6 @@ obj-y	+= iris/
 obj-y	+= intel/
 obj-y	+= intel-mid/
 obj-y	+= intel-quark/
-obj-y	+= mellanox/
 obj-y	+= olpc/
 obj-y	+= scx200/
 obj-y	+= sfi/
diff --git a/arch/x86/platform/mellanox/Makefile b/arch/x86/platform/mellanox/Makefile
deleted file mode 100644
index f43c931..0000000
--- a/arch/x86/platform/mellanox/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-$(CONFIG_MLX_PLATFORM)	+= mlx-platform.o
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 1853769..4639d97 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1028,10 +1028,21 @@ config INTEL_TELEMETRY
 	  directly via debugfs files. Various tools may use
 	  this interface for SoC state monitoring.
 
+config MLX_PLATFORM
+	tristate "Mellanox Technologies platform support"
+	depends on X86_64
+	---help---
+	  This option enables system support for the Mellanox Technologies
+	  platform. The Mellanox systems provide data center networking
+	  solutions based on Virtual Protocol Interconnect (VPI) technology
+	  enable seamless connectivity to 56/100Gb/s InfiniBand or 10/40/56GbE
+	  connection.
+
+	  If you have a Mellanox system, say Y or M here.
+
 config MLX_CPLD_PLATFORM
 	tristate "Mellanox platform hotplug driver support"
 	default n
-	depends on MLX_PLATFORM
 	select HWMON
 	select I2C
 	---help---
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 1f06b63..2d6a587 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -71,4 +71,5 @@ obj-$(CONFIG_INTEL_TELEMETRY)	+= intel_telemetry_core.o \
 				   intel_telemetry_pltdrv.o \
 				   intel_telemetry_debugfs.o
 obj-$(CONFIG_INTEL_PMC_CORE)    += intel_pmc_core.o
+obj-$(CONFIG_MLX_PLATFORM)	+= mlx-platform.o
 obj-$(CONFIG_MLX_CPLD_PLATFORM)	+= mlxcpld-hotplug.o
diff --git a/arch/x86/platform/mellanox/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
similarity index 99%
rename from arch/x86/platform/mellanox/mlx-platform.c
rename to drivers/platform/x86/mlx-platform.c
index 7dcfcca..bbf60d1 100644
--- a/arch/x86/platform/mellanox/mlx-platform.c
+++ b/drivers/platform/x86/mlx-platform.c
@@ -1,5 +1,4 @@
 /*
- * arch/x86/platform/mellanox/mlx-platform.c
  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
  * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
  *
-- 
2.1.4