platform/x86: Move Mellanox platform hotplug driver to platform/mellanox

In preparation for making the hotplug driver build for different
architectures, move mlxcpld-hotplug.c to platform/mellanox and the
header to include/linux/platform_data as mlxreg.h to reflect the new
interface changes to come.

Replace references to CPLD with REG throughout the files, consistent
with the new name.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
[dvhart: update copyright, rewrite commit message]
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>

MAINTAINERS

@@ -8860,12 +8860,13 @@ W:	http://www.mellanox.com
 Q:	http://patchwork.ozlabs.org/project/netdev/list/
 F:	drivers/net/ethernet/mellanox/mlxfw/
 
-MELLANOX MLX CPLD HOTPLUG DRIVER
+MELLANOX HARDWARE PLATFORM SUPPORT
+M:	Andy Shevchenko <andy@infradead.org>
+M:	Darren Hart <dvhart@infradead.org>
 M:	Vadim Pasternak <vadimp@mellanox.com>
 L:	platform-driver-x86@vger.kernel.org
 S:	Supported
-F:	drivers/platform/x86/mlxcpld-hotplug.c
-F:	include/linux/platform_data/mlxcpld-hotplug.h
+F:	drivers/platform/mellanox/
 
 MELLANOX MLX4 core VPI driver
 M:	Tariq Toukan <tariqt@mellanox.com>

drivers/platform/Kconfig

@@ -8,3 +8,5 @@ endif
 source "drivers/platform/goldfish/Kconfig"
 
 source "drivers/platform/chrome/Kconfig"
+
+source "drivers/platform/mellanox/Kconfig"

drivers/platform/Makefile

@@ -4,6 +4,7 @@
 #
 
 obj-$(CONFIG_X86)		+= x86/
+obj-$(CONFIG_MELLANOX_PLATFORM)	+= mellanox/
 obj-$(CONFIG_MIPS)		+= mips/
 obj-$(CONFIG_OLPC)		+= olpc/
 obj-$(CONFIG_GOLDFISH)		+= goldfish/

drivers/platform/mellanox/Kconfig

+# SPDX-License-Identifier: GPL-2.0
+#
+# Platform support for Mellanox hardware
+#
+
+menuconfig MELLANOX_PLATFORM
+	bool "Platform support for Mellanox hardware"
+	depends on X86 || COMPILE_TEST
+	---help---
+	  Say Y here to get to see options for platform support for
+	  Mellanox systems. This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if MELLANOX_PLATFORM
+
+config MLXREG_HOTPLUG
+	tristate "Mellanox platform hotplug driver support"
+	depends on HWMON
+	depends on I2C
+	---help---
+	  This driver handles hot-plug events for the power suppliers, power
+	  cables and fans on the wide range Mellanox IB and Ethernet systems.
+
+endif # MELLANOX_PLATFORM

drivers/platform/mellanox/Makefile

+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for linux/drivers/platform/mellanox
+# Mellanox Platform-Specific Drivers
+#
+obj-$(CONFIG_MLXREG_HOTPLUG)	+= mlxreg-hotplug.o

drivers/platform/x86/Kconfig

@@ -1169,14 +1169,6 @@ config MLX_PLATFORM
 
 	  If you have a Mellanox system, say Y or M here.
 
-config MLX_CPLD_PLATFORM
-	tristate "Mellanox platform hotplug driver support"
-	select HWMON
-	select I2C
-	---help---
-	  This driver handles hot-plug events for the power suppliers, power
-	  cables and fans on the wide range Mellanox IB and Ethernet systems.
-
 config INTEL_TURBO_MAX_3
 	bool "Intel Turbo Boost Max Technology 3.0 enumeration driver"
 	depends on X86_64 && SCHED_MC_PRIO

drivers/platform/x86/Makefile

@@ -88,6 +88,5 @@ obj-$(CONFIG_INTEL_TELEMETRY)	+= intel_telemetry_core.o \
 obj-$(CONFIG_INTEL_PMC_CORE)    += intel_pmc_core.o
 obj-$(CONFIG_PMC_ATOM)		+= pmc_atom.o
 obj-$(CONFIG_MLX_PLATFORM)	+= mlx-platform.o
-obj-$(CONFIG_MLX_CPLD_PLATFORM)	+= mlxcpld-hotplug.o
 obj-$(CONFIG_INTEL_TURBO_MAX_3) += intel_turbo_max_3.o
 obj-$(CONFIG_INTEL_CHTDC_TI_PWRBTN)	+= intel_chtdc_ti_pwrbtn.o

drivers/platform/x86/mlx-platform.c

@@ -38,7 +38,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/i2c-mux-reg.h>
-#include <linux/platform_data/mlxcpld-hotplug.h>
+#include <linux/platform_data/mlxreg.h>
 
 #define MLX_PLAT_DEVICE_NAME		"mlxplat"
 
@@ -138,7 +138,7 @@ static struct i2c_mux_reg_platform_data mlxplat_mux_data[] = {
 };
 
 /* Platform hotplug devices */
-static struct mlxcpld_hotplug_device mlxplat_mlxcpld_psu[] = {
+static struct mlxreg_hotplug_device mlxplat_mlxcpld_psu[] = {
 	{
 		.brdinfo = { I2C_BOARD_INFO("24c02", 0x51) },
 		.bus = 10,
@@ -149,7 +149,7 @@ static struct mlxcpld_hotplug_device mlxplat_mlxcpld_psu[] = {
 	},
 };
 
-static struct mlxcpld_hotplug_device mlxplat_mlxcpld_pwr[] = {
+static struct mlxreg_hotplug_device mlxplat_mlxcpld_pwr[] = {
 	{
 		.brdinfo = { I2C_BOARD_INFO("dps460", 0x59) },
 		.bus = 10,
@@ -160,7 +160,7 @@ static struct mlxcpld_hotplug_device mlxplat_mlxcpld_pwr[] = {
 	},
 };
 
-static struct mlxcpld_hotplug_device mlxplat_mlxcpld_fan[] = {
+static struct mlxreg_hotplug_device mlxplat_mlxcpld_fan[] = {
 	{
 		.brdinfo = { I2C_BOARD_INFO("24c32", 0x50) },
 		.bus = 11,
@@ -181,7 +181,7 @@ static struct mlxcpld_hotplug_device mlxplat_mlxcpld_fan[] = {
 
 /* Platform hotplug default data */
 static
-struct mlxcpld_hotplug_platform_data mlxplat_mlxcpld_default_data = {
+struct mlxreg_hotplug_platform_data mlxplat_mlxcpld_default_data = {
 	.top_aggr_offset = MLXPLAT_CPLD_LPC_REG_AGGR_ADRR,
 	.top_aggr_mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
 	.top_aggr_psu_mask = MLXPLAT_CPLD_AGGR_PSU_MASK_DEF,
@@ -203,7 +203,7 @@ struct mlxcpld_hotplug_platform_data mlxplat_mlxcpld_default_data = {
 
 /* Platform hotplug MSN21xx system family data */
 static
-struct mlxcpld_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
+struct mlxreg_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
 	.top_aggr_offset = MLXPLAT_CPLD_LPC_REG_AGGR_ADRR,
 	.top_aggr_mask = MLXPLAT_CPLD_AGGR_MASK_MSN21XX,
 	.top_aggr_pwr_mask = MLXPLAT_CPLD_AGGR_MASK_MSN21XX,
@@ -213,11 +213,11 @@ struct mlxcpld_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
 };
 
 static struct resource mlxplat_mlxcpld_resources[] = {
-	[0] = DEFINE_RES_IRQ_NAMED(17, "mlxcpld-hotplug"),
+	[0] = DEFINE_RES_IRQ_NAMED(17, "mlxreg-hotplug"),
 };
 
 static struct platform_device *mlxplat_dev;
-static struct mlxcpld_hotplug_platform_data *mlxplat_hotplug;
+static struct mlxreg_hotplug_platform_data *mlxplat_hotplug;
 
 static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi)
 {
@@ -329,7 +329,7 @@ static int __init mlxplat_init(void)
 	}
 
 	priv->pdev_hotplug = platform_device_register_resndata(
-				&mlxplat_dev->dev, "mlxcpld-hotplug",
+				&mlxplat_dev->dev, "mlxreg-hotplug",
 				PLATFORM_DEVID_NONE,
 				mlxplat_mlxcpld_resources,
 				ARRAY_SIZE(mlxplat_mlxcpld_resources),

include/linux/platform_data/mlxcpld-hotplug.h → include/linux/platform_data/mlxreg.h

 /*
- * include/linux/platform_data/mlxcpld-hotplug.h
- * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Vadim Pasternak <vadimp@mellanox.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -32,11 +31,11 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
-#define __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
+#ifndef __LINUX_PLATFORM_DATA_MLXREG_H
+#define __LINUX_PLATFORM_DATA_MLXREG_H
 
 /**
- * struct mlxcpld_hotplug_device - I2C device data:
+ * struct mlxreg_hotplug_device - I2C device data:
  * @adapter: I2C device adapter;
  * @client: I2C device client;
  * @brdinfo: device board information;
@@ -45,7 +44,7 @@
  * Structure represents I2C hotplug device static data (board topology) and
  * dynamic data (related kernel objects handles).
  */
-struct mlxcpld_hotplug_device {
+struct mlxreg_hotplug_device {
 	struct i2c_adapter *adapter;
 	struct i2c_client *client;
 	struct i2c_board_info brdinfo;
@@ -53,7 +52,7 @@ struct mlxcpld_hotplug_device {
 };
 
 /**
- * struct mlxcpld_hotplug_platform_data - device platform data:
+ * struct mlxreg_hotplug_platform_data - device platform data:
  * @top_aggr_offset: offset of top aggregation interrupt register;
  * @top_aggr_mask: top aggregation interrupt common mask;
  * @top_aggr_psu_mask: top aggregation interrupt PSU mask;
@@ -76,24 +75,24 @@ struct mlxcpld_hotplug_device {
  * like FAN, PSU, power cable insertion and removing. This data provides the
  * number of hot-pluggable devices and hardware description for event handling.
  */
-struct mlxcpld_hotplug_platform_data {
+struct mlxreg_hotplug_platform_data {
 	u16 top_aggr_offset;
 	u8 top_aggr_mask;
 	u8 top_aggr_psu_mask;
 	u16 psu_reg_offset;
 	u8 psu_mask;
 	u8 psu_count;
-	struct mlxcpld_hotplug_device *psu;
+	struct mlxreg_hotplug_device *psu;
 	u8 top_aggr_pwr_mask;
 	u16 pwr_reg_offset;
 	u8 pwr_mask;
 	u8 pwr_count;
-	struct mlxcpld_hotplug_device *pwr;
+	struct mlxreg_hotplug_device *pwr;
 	u8 top_aggr_fan_mask;
 	u16 fan_reg_offset;
 	u8 fan_mask;
 	u8 fan_count;
-	struct mlxcpld_hotplug_device *fan;
+	struct mlxreg_hotplug_device *fan;
 };
 
-#endif /* __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H */
+#endif /* __LINUX_PLATFORM_DATA_MLXREG_H */