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Date: Thu, 11 Jan 2018 08:58:41 +0000
From: Vadim Pasternak <vadimp@...lanox.com>
To: dvhart@...radead.org, andy.shevchenko@...il.com,
gregkh@...uxfoundation.org
Cc: linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org,
jiri@...nulli.us, Vadim Pasternak <vadimp@...lanox.com>
Subject: [patch v8 1/3] platform/x86: move Mellanox hardware platform hotplug driver to platform/mellanox
It moves drivers/platform/x86/mlxcpld-hotplug.c to
drivers/platform/mellanox/mlxreg-hotplug.c and
include/linux/platform_data/mlxcpld-hotplug.h to
include/linux/platform_data/mlxreg.h for making hotplug driver usable for
the different machine architectures.
Signed-off-by: Vadim Pasternak <vadimp@...lanox.com>
Acked-by: Andy Shevchenko <andy.shevchenko@...il.com>
---
v7->v8:
v6->v7:
Fixes added by Vadim:
- remove dependency on X86_64 to allow also X86 architecture;
v5->v6:
Fixes added by Vadim:
- add SPD license record to Kconfig and Makefile;
v4->v5:
Comments pointed out by Andy:
- arrange MAINTAINERS in correct alphabetic order;
v3->v4:
Comments pointed out by Darren:
- Refactor the patches to provide the changes in patchset in incremental
order;
- Modify MAINTAINERS records;
- Use git-mv for the replaced files;
Commnets pointed out by Colin:
- Make structures mlxplat_dev and mlxplat_hotplug static;
---
MAINTAINERS | 7 +-
drivers/platform/Kconfig | 2 +
drivers/platform/Makefile | 1 +
drivers/platform/mellanox/Kconfig | 25 +++
drivers/platform/mellanox/Makefile | 6 +
.../mlxreg-hotplug.c} | 223 ++++++++++-----------
drivers/platform/x86/Kconfig | 9 -
drivers/platform/x86/Makefile | 1 -
drivers/platform/x86/mlx-platform.c | 18 +-
.../platform_data/{mlxcpld-hotplug.h => mlxreg.h} | 25 ++-
10 files changed, 170 insertions(+), 147 deletions(-)
create mode 100644 drivers/platform/mellanox/Kconfig
create mode 100644 drivers/platform/mellanox/Makefile
rename drivers/platform/{x86/mlxcpld-hotplug.c => mellanox/mlxreg-hotplug.c} (65%)
rename include/linux/platform_data/{mlxcpld-hotplug.h => mlxreg.h} (84%)
diff --git a/MAINTAINERS b/MAINTAINERS
index bc4d776..c07e114 100644
--- a/MAINTAINERS
+++ b/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@...radead.org>
+M: Darren Hart <dvhart@...radead.org>
M: Vadim Pasternak <vadimp@...lanox.com>
L: platform-driver-x86@...r.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@...lanox.com>
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index c11db8b..d4c2e42 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -8,3 +8,5 @@ endif
source "drivers/platform/goldfish/Kconfig"
source "drivers/platform/chrome/Kconfig"
+
+source "drivers/platform/mellanox/Kconfig"
diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index d3a6630..4b2ce58 100644
--- a/drivers/platform/Makefile
+++ b/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-$(CONFIG_GOLDFISH) += goldfish/
diff --git a/drivers/platform/mellanox/Kconfig b/drivers/platform/mellanox/Kconfig
new file mode 100644
index 0000000..d735292
--- /dev/null
+++ b/drivers/platform/mellanox/Kconfig
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Platform support for Mellanox hardware
+#
+
+menuconfig MELLANOX_PLATFORM
+ bool "Platform support for Mellanox hardware"
+ depends on X86 || COMPILE_TEST
+ ---help---
+ Say Y here to get to see options for platform support for
+ Mellanox systems. This option alone does not add any kernel code.
+
+ If you say N, all options in this submenu will be skipped and disabled.
+
+if MELLANOX_PLATFORM
+
+config MLXREG_HOTPLUG
+ tristate "Mellanox platform hotplug driver support"
+ depends on HWMON
+ depends on I2C
+ ---help---
+ This driver handles hot-plug events for the power suppliers, power
+ cables and fans on the wide range Mellanox IB and Ethernet systems.
+
+endif # MELLANOX_PLATFORM
diff --git a/drivers/platform/mellanox/Makefile b/drivers/platform/mellanox/Makefile
new file mode 100644
index 0000000..7c8385e
--- /dev/null
+++ b/drivers/platform/mellanox/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for linux/drivers/platform/mellanox
+# Mellanox Platform-Specific Drivers
+#
+obj-$(CONFIG_MLXREG_HOTPLUG) += mlxreg-hotplug.o
diff --git a/drivers/platform/x86/mlxcpld-hotplug.c b/drivers/platform/mellanox/mlxreg-hotplug.c
similarity index 65%
rename from drivers/platform/x86/mlxcpld-hotplug.c
rename to drivers/platform/mellanox/mlxreg-hotplug.c
index aff3686..2866c76 100644
--- a/drivers/platform/x86/mlxcpld-hotplug.c
+++ b/drivers/platform/mellanox/mlxreg-hotplug.c
@@ -1,7 +1,6 @@
/*
- * drivers/platform/x86/mlxcpld-hotplug.c
- * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2016 Vadim Pasternak <vadimp@...lanox.com>
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Vadim Pasternak <vadimp@...lanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -40,39 +39,39 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
-#include <linux/platform_data/mlxcpld-hotplug.h>
+#include <linux/platform_data/mlxreg.h>
#include <linux/platform_device.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
#include <linux/workqueue.h>
/* Offset of event and mask registers from status register */
-#define MLXCPLD_HOTPLUG_EVENT_OFF 1
-#define MLXCPLD_HOTPLUG_MASK_OFF 2
-#define MLXCPLD_HOTPLUG_AGGR_MASK_OFF 1
+#define MLXREG_HOTPLUG_EVENT_OFF 1
+#define MLXREG_HOTPLUG_MASK_OFF 2
+#define MLXREG_HOTPLUG_AGGR_MASK_OFF 1
-#define MLXCPLD_HOTPLUG_ATTRS_NUM 8
+#define MLXREG_HOTPLUG_ATTRS_NUM 8
/**
- * enum mlxcpld_hotplug_attr_type - sysfs attributes for hotplug events:
- * @MLXCPLD_HOTPLUG_ATTR_TYPE_PSU: power supply unit attribute;
- * @MLXCPLD_HOTPLUG_ATTR_TYPE_PWR: power cable attribute;
- * @MLXCPLD_HOTPLUG_ATTR_TYPE_FAN: FAN drawer attribute;
+ * enum mlxreg_hotplug_attr_type - sysfs attributes for hotplug events:
+ * @MLXREG_HOTPLUG_ATTR_TYPE_PSU: power supply unit attribute;
+ * @MLXREG_HOTPLUG_ATTR_TYPE_PWR: power cable attribute;
+ * @MLXREG_HOTPLUG_ATTR_TYPE_FAN: FAN drawer attribute;
*/
-enum mlxcpld_hotplug_attr_type {
- MLXCPLD_HOTPLUG_ATTR_TYPE_PSU,
- MLXCPLD_HOTPLUG_ATTR_TYPE_PWR,
- MLXCPLD_HOTPLUG_ATTR_TYPE_FAN,
+enum mlxreg_hotplug_attr_type {
+ MLXREG_HOTPLUG_ATTR_TYPE_PSU,
+ MLXREG_HOTPLUG_ATTR_TYPE_PWR,
+ MLXREG_HOTPLUG_ATTR_TYPE_FAN,
};
/**
- * struct mlxcpld_hotplug_priv_data - platform private data:
+ * struct mlxreg_hotplug_priv_data - platform private data:
* @irq: platform interrupt number;
* @pdev: platform device;
* @plat: platform data;
* @hwmon: hwmon device;
- * @mlxcpld_hotplug_attr: sysfs attributes array;
- * @mlxcpld_hotplug_dev_attr: sysfs sensor device attribute array;
+ * @mlxreg_hotplug_attr: sysfs attributes array;
+ * @mlxreg_hotplug_dev_attr: sysfs sensor device attribute array;
* @group: sysfs attribute group;
* @groups: list of sysfs attribute group for hwmon registration;
* @dwork: delayed work template;
@@ -82,14 +81,14 @@ enum mlxcpld_hotplug_attr_type {
* @pwr_cache: last value of power register status;
* @fan_cache: last value of FAN register status;
*/
-struct mlxcpld_hotplug_priv_data {
+struct mlxreg_hotplug_priv_data {
int irq;
struct platform_device *pdev;
- struct mlxcpld_hotplug_platform_data *plat;
+ struct mlxreg_hotplug_platform_data *plat;
struct device *hwmon;
- struct attribute *mlxcpld_hotplug_attr[MLXCPLD_HOTPLUG_ATTRS_NUM + 1];
+ struct attribute *mlxreg_hotplug_attr[MLXREG_HOTPLUG_ATTRS_NUM + 1];
struct sensor_device_attribute_2
- mlxcpld_hotplug_dev_attr[MLXCPLD_HOTPLUG_ATTRS_NUM];
+ mlxreg_hotplug_dev_attr[MLXREG_HOTPLUG_ATTRS_NUM];
struct attribute_group group;
const struct attribute_group *groups[2];
struct delayed_work dwork;
@@ -100,29 +99,29 @@ struct mlxcpld_hotplug_priv_data {
u8 fan_cache;
};
-static ssize_t mlxcpld_hotplug_attr_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t mlxreg_hotplug_attr_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
{
struct platform_device *pdev = to_platform_device(dev);
- struct mlxcpld_hotplug_priv_data *priv = platform_get_drvdata(pdev);
+ struct mlxreg_hotplug_priv_data *priv = platform_get_drvdata(pdev);
int index = to_sensor_dev_attr_2(attr)->index;
int nr = to_sensor_dev_attr_2(attr)->nr;
u8 reg_val = 0;
switch (nr) {
- case MLXCPLD_HOTPLUG_ATTR_TYPE_PSU:
+ case MLXREG_HOTPLUG_ATTR_TYPE_PSU:
/* Bit = 0 : PSU is present. */
reg_val = !!!(inb(priv->plat->psu_reg_offset) & BIT(index));
break;
- case MLXCPLD_HOTPLUG_ATTR_TYPE_PWR:
+ case MLXREG_HOTPLUG_ATTR_TYPE_PWR:
/* Bit = 1 : power cable is attached. */
reg_val = !!(inb(priv->plat->pwr_reg_offset) & BIT(index %
priv->plat->pwr_count));
break;
- case MLXCPLD_HOTPLUG_ATTR_TYPE_FAN:
+ case MLXREG_HOTPLUG_ATTR_TYPE_FAN:
/* Bit = 0 : FAN is present. */
reg_val = !!!(inb(priv->plat->fan_reg_offset) & BIT(index %
priv->plat->fan_count));
@@ -132,9 +131,9 @@ static ssize_t mlxcpld_hotplug_attr_show(struct device *dev,
return sprintf(buf, "%u\n", reg_val);
}
-#define PRIV_ATTR(i) priv->mlxcpld_hotplug_attr[i]
-#define PRIV_DEV_ATTR(i) priv->mlxcpld_hotplug_dev_attr[i]
-static int mlxcpld_hotplug_attr_init(struct mlxcpld_hotplug_priv_data *priv)
+#define PRIV_ATTR(i) priv->mlxreg_hotplug_attr[i]
+#define PRIV_DEV_ATTR(i) priv->mlxreg_hotplug_dev_attr[i]
+static int mlxreg_hotplug_attr_init(struct mlxreg_hotplug_priv_data *priv)
{
int num_attrs = priv->plat->psu_count + priv->plat->pwr_count +
priv->plat->fan_count;
@@ -152,17 +151,17 @@ static int mlxcpld_hotplug_attr_init(struct mlxcpld_hotplug_priv_data *priv)
if (i < priv->plat->psu_count) {
PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
GFP_KERNEL, "psu%u", i + 1);
- PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_PSU;
+ PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_PSU;
} else if (i < priv->plat->psu_count + priv->plat->pwr_count) {
PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
GFP_KERNEL, "pwr%u", i %
priv->plat->pwr_count + 1);
- PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_PWR;
+ PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_PWR;
} else {
PRIV_ATTR(i)->name = devm_kasprintf(&priv->pdev->dev,
GFP_KERNEL, "fan%u", i %
priv->plat->fan_count + 1);
- PRIV_DEV_ATTR(i).nr = MLXCPLD_HOTPLUG_ATTR_TYPE_FAN;
+ PRIV_DEV_ATTR(i).nr = MLXREG_HOTPLUG_ATTR_TYPE_FAN;
}
if (!PRIV_ATTR(i)->name) {
@@ -173,20 +172,20 @@ static int mlxcpld_hotplug_attr_init(struct mlxcpld_hotplug_priv_data *priv)
PRIV_DEV_ATTR(i).dev_attr.attr.name = PRIV_ATTR(i)->name;
PRIV_DEV_ATTR(i).dev_attr.attr.mode = S_IRUGO;
- PRIV_DEV_ATTR(i).dev_attr.show = mlxcpld_hotplug_attr_show;
+ PRIV_DEV_ATTR(i).dev_attr.show = mlxreg_hotplug_attr_show;
PRIV_DEV_ATTR(i).index = i;
sysfs_attr_init(&PRIV_DEV_ATTR(i).dev_attr.attr);
}
- priv->group.attrs = priv->mlxcpld_hotplug_attr;
+ priv->group.attrs = priv->mlxreg_hotplug_attr;
priv->groups[0] = &priv->group;
priv->groups[1] = NULL;
return 0;
}
-static int mlxcpld_hotplug_device_create(struct device *dev,
- struct mlxcpld_hotplug_device *item)
+static int mlxreg_hotplug_device_create(struct device *dev,
+ struct mlxreg_hotplug_device *item)
{
item->adapter = i2c_get_adapter(item->bus);
if (!item->adapter) {
@@ -207,7 +206,7 @@ static int mlxcpld_hotplug_device_create(struct device *dev,
return 0;
}
-static void mlxcpld_hotplug_device_destroy(struct mlxcpld_hotplug_device *item)
+static void mlxreg_hotplug_device_destroy(struct mlxreg_hotplug_device *item)
{
if (item->client) {
i2c_unregister_device(item->client);
@@ -221,15 +220,15 @@ static void mlxcpld_hotplug_device_destroy(struct mlxcpld_hotplug_device *item)
}
static inline void
-mlxcpld_hotplug_work_helper(struct device *dev,
- struct mlxcpld_hotplug_device *item, u8 is_inverse,
- u16 offset, u8 mask, u8 *cache)
+mlxreg_hotplug_work_helper(struct device *dev,
+ struct mlxreg_hotplug_device *item, u8 is_inverse,
+ u16 offset, u8 mask, u8 *cache)
{
u8 val, asserted;
int bit;
/* Mask event. */
- outb(0, offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ outb(0, offset + MLXREG_HOTPLUG_MASK_OFF);
/* Read status. */
val = inb(offset) & mask;
asserted = *cache ^ val;
@@ -251,25 +250,25 @@ mlxcpld_hotplug_work_helper(struct device *dev,
for_each_set_bit(bit, (unsigned long *)&asserted, 8) {
if (val & BIT(bit)) {
if (is_inverse)
- mlxcpld_hotplug_device_destroy(item + bit);
+ mlxreg_hotplug_device_destroy(item + bit);
else
- mlxcpld_hotplug_device_create(dev, item + bit);
+ mlxreg_hotplug_device_create(dev, item + bit);
} else {
if (is_inverse)
- mlxcpld_hotplug_device_create(dev, item + bit);
+ mlxreg_hotplug_device_create(dev, item + bit);
else
- mlxcpld_hotplug_device_destroy(item + bit);
+ mlxreg_hotplug_device_destroy(item + bit);
}
}
/* Acknowledge event. */
- outb(0, offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Unmask event. */
- outb(mask, offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ outb(mask, offset + MLXREG_HOTPLUG_MASK_OFF);
}
/*
- * mlxcpld_hotplug_work_handler - performs traversing of CPLD interrupt
+ * mlxreg_hotplug_work_handler - performs traversing of CPLD interrupt
* registers according to the below hierarchy schema:
*
* Aggregation registers (status/mask)
@@ -289,15 +288,15 @@ mlxcpld_hotplug_work_helper(struct device *dev,
* In case some system changed are detected: FAN in/out, PSU in/out, power
* cable attached/detached, relevant device is created or destroyed.
*/
-static void mlxcpld_hotplug_work_handler(struct work_struct *work)
+static void mlxreg_hotplug_work_handler(struct work_struct *work)
{
- struct mlxcpld_hotplug_priv_data *priv = container_of(work,
- struct mlxcpld_hotplug_priv_data, dwork.work);
+ struct mlxreg_hotplug_priv_data *priv = container_of(work,
+ struct mlxreg_hotplug_priv_data, dwork.work);
u8 val, aggr_asserted;
unsigned long flags;
/* Mask aggregation event. */
- outb(0, priv->plat->top_aggr_offset + MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+ outb(0, priv->plat->top_aggr_offset + MLXREG_HOTPLUG_AGGR_MASK_OFF);
/* Read aggregation status. */
val = inb(priv->plat->top_aggr_offset) & priv->plat->top_aggr_mask;
aggr_asserted = priv->aggr_cache ^ val;
@@ -305,31 +304,31 @@ static void mlxcpld_hotplug_work_handler(struct work_struct *work)
/* Handle PSU configuration changes. */
if (aggr_asserted & priv->plat->top_aggr_psu_mask)
- mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->psu,
- 1, priv->plat->psu_reg_offset,
- priv->plat->psu_mask,
- &priv->psu_cache);
+ mlxreg_hotplug_work_helper(&priv->pdev->dev, priv->plat->psu,
+ 1, priv->plat->psu_reg_offset,
+ priv->plat->psu_mask,
+ &priv->psu_cache);
/* Handle power cable configuration changes. */
if (aggr_asserted & priv->plat->top_aggr_pwr_mask)
- mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->pwr,
- 0, priv->plat->pwr_reg_offset,
- priv->plat->pwr_mask,
- &priv->pwr_cache);
+ mlxreg_hotplug_work_helper(&priv->pdev->dev, priv->plat->pwr,
+ 0, priv->plat->pwr_reg_offset,
+ priv->plat->pwr_mask,
+ &priv->pwr_cache);
/* Handle FAN configuration changes. */
if (aggr_asserted & priv->plat->top_aggr_fan_mask)
- mlxcpld_hotplug_work_helper(&priv->pdev->dev, priv->plat->fan,
- 1, priv->plat->fan_reg_offset,
- priv->plat->fan_mask,
- &priv->fan_cache);
+ mlxreg_hotplug_work_helper(&priv->pdev->dev, priv->plat->fan,
+ 1, priv->plat->fan_reg_offset,
+ priv->plat->fan_mask,
+ &priv->fan_cache);
if (aggr_asserted) {
spin_lock_irqsave(&priv->lock, flags);
/*
* It is possible, that some signals have been inserted, while
- * interrupt has been masked by mlxcpld_hotplug_work_handler.
+ * interrupt has been masked by mlxreg_hotplug_work_handler.
* In this case such signals will be missed. In order to handle
* these signals delayed work is canceled and work task
* re-scheduled for immediate execution. It allows to handle
@@ -347,42 +346,42 @@ static void mlxcpld_hotplug_work_handler(struct work_struct *work)
/* Unmask aggregation event (no need acknowledge). */
outb(priv->plat->top_aggr_mask, priv->plat->top_aggr_offset +
- MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+ MLXREG_HOTPLUG_AGGR_MASK_OFF);
}
-static void mlxcpld_hotplug_set_irq(struct mlxcpld_hotplug_priv_data *priv)
+static void mlxreg_hotplug_set_irq(struct mlxreg_hotplug_priv_data *priv)
{
/* Clear psu presense event. */
- outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->psu_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Set psu initial status as mask and unmask psu event. */
priv->psu_cache = priv->plat->psu_mask;
outb(priv->plat->psu_mask, priv->plat->psu_reg_offset +
- MLXCPLD_HOTPLUG_MASK_OFF);
+ MLXREG_HOTPLUG_MASK_OFF);
/* Clear power cable event. */
- outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->pwr_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Keep power initial status as zero and unmask power event. */
outb(priv->plat->pwr_mask, priv->plat->pwr_reg_offset +
- MLXCPLD_HOTPLUG_MASK_OFF);
+ MLXREG_HOTPLUG_MASK_OFF);
/* Clear fan presense event. */
- outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->fan_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Set fan initial status as mask and unmask fan event. */
priv->fan_cache = priv->plat->fan_mask;
outb(priv->plat->fan_mask, priv->plat->fan_reg_offset +
- MLXCPLD_HOTPLUG_MASK_OFF);
+ MLXREG_HOTPLUG_MASK_OFF);
/* Keep aggregation initial status as zero and unmask events. */
outb(priv->plat->top_aggr_mask, priv->plat->top_aggr_offset +
- MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+ MLXREG_HOTPLUG_AGGR_MASK_OFF);
/* Invoke work handler for initializing hot plug devices setting. */
- mlxcpld_hotplug_work_handler(&priv->dwork.work);
+ mlxreg_hotplug_work_handler(&priv->dwork.work);
enable_irq(priv->irq);
}
-static void mlxcpld_hotplug_unset_irq(struct mlxcpld_hotplug_priv_data *priv)
+static void mlxreg_hotplug_unset_irq(struct mlxreg_hotplug_priv_data *priv)
{
int i;
@@ -390,38 +389,38 @@ static void mlxcpld_hotplug_unset_irq(struct mlxcpld_hotplug_priv_data *priv)
cancel_delayed_work_sync(&priv->dwork);
/* Mask aggregation event. */
- outb(0, priv->plat->top_aggr_offset + MLXCPLD_HOTPLUG_AGGR_MASK_OFF);
+ outb(0, priv->plat->top_aggr_offset + MLXREG_HOTPLUG_AGGR_MASK_OFF);
/* Mask psu presense event. */
- outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ outb(0, priv->plat->psu_reg_offset + MLXREG_HOTPLUG_MASK_OFF);
/* Clear psu presense event. */
- outb(0, priv->plat->psu_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->psu_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Mask power cable event. */
- outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ outb(0, priv->plat->pwr_reg_offset + MLXREG_HOTPLUG_MASK_OFF);
/* Clear power cable event. */
- outb(0, priv->plat->pwr_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->pwr_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Mask fan presense event. */
- outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_MASK_OFF);
+ outb(0, priv->plat->fan_reg_offset + MLXREG_HOTPLUG_MASK_OFF);
/* Clear fan presense event. */
- outb(0, priv->plat->fan_reg_offset + MLXCPLD_HOTPLUG_EVENT_OFF);
+ outb(0, priv->plat->fan_reg_offset + MLXREG_HOTPLUG_EVENT_OFF);
/* Remove all the attached devices. */
for (i = 0; i < priv->plat->psu_count; i++)
- mlxcpld_hotplug_device_destroy(priv->plat->psu + i);
+ mlxreg_hotplug_device_destroy(priv->plat->psu + i);
for (i = 0; i < priv->plat->pwr_count; i++)
- mlxcpld_hotplug_device_destroy(priv->plat->pwr + i);
+ mlxreg_hotplug_device_destroy(priv->plat->pwr + i);
for (i = 0; i < priv->plat->fan_count; i++)
- mlxcpld_hotplug_device_destroy(priv->plat->fan + i);
+ mlxreg_hotplug_device_destroy(priv->plat->fan + i);
}
-static irqreturn_t mlxcpld_hotplug_irq_handler(int irq, void *dev)
+static irqreturn_t mlxreg_hotplug_irq_handler(int irq, void *dev)
{
- struct mlxcpld_hotplug_priv_data *priv =
- (struct mlxcpld_hotplug_priv_data *)dev;
+ struct mlxreg_hotplug_priv_data *priv =
+ (struct mlxreg_hotplug_priv_data *)dev;
/* Schedule work task for immediate execution.*/
schedule_delayed_work(&priv->dwork, 0);
@@ -429,10 +428,10 @@ static irqreturn_t mlxcpld_hotplug_irq_handler(int irq, void *dev)
return IRQ_HANDLED;
}
-static int mlxcpld_hotplug_probe(struct platform_device *pdev)
+static int mlxreg_hotplug_probe(struct platform_device *pdev)
{
- struct mlxcpld_hotplug_platform_data *pdata;
- struct mlxcpld_hotplug_priv_data *priv;
+ struct mlxreg_hotplug_platform_data *pdata;
+ struct mlxreg_hotplug_priv_data *priv;
int err;
pdata = dev_get_platdata(&pdev->dev);
@@ -456,25 +455,25 @@ static int mlxcpld_hotplug_probe(struct platform_device *pdev)
}
err = devm_request_irq(&pdev->dev, priv->irq,
- mlxcpld_hotplug_irq_handler, 0, pdev->name,
- priv);
+ mlxreg_hotplug_irq_handler, 0, pdev->name,
+ priv);
if (err) {
dev_err(&pdev->dev, "Failed to request irq: %d\n", err);
return err;
}
disable_irq(priv->irq);
- INIT_DELAYED_WORK(&priv->dwork, mlxcpld_hotplug_work_handler);
+ INIT_DELAYED_WORK(&priv->dwork, mlxreg_hotplug_work_handler);
spin_lock_init(&priv->lock);
- err = mlxcpld_hotplug_attr_init(priv);
+ err = mlxreg_hotplug_attr_init(priv);
if (err) {
dev_err(&pdev->dev, "Failed to allocate attributes: %d\n", err);
return err;
}
priv->hwmon = devm_hwmon_device_register_with_groups(&pdev->dev,
- "mlxcpld_hotplug", priv, priv->groups);
+ "mlxreg_hotplug", priv, priv->groups);
if (IS_ERR(priv->hwmon)) {
dev_err(&pdev->dev, "Failed to register hwmon device %ld\n",
PTR_ERR(priv->hwmon));
@@ -484,32 +483,32 @@ static int mlxcpld_hotplug_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
/* Perform initial interrupts setup. */
- mlxcpld_hotplug_set_irq(priv);
+ mlxreg_hotplug_set_irq(priv);
return 0;
}
-static int mlxcpld_hotplug_remove(struct platform_device *pdev)
+static int mlxreg_hotplug_remove(struct platform_device *pdev)
{
- struct mlxcpld_hotplug_priv_data *priv = platform_get_drvdata(pdev);
+ struct mlxreg_hotplug_priv_data *priv = platform_get_drvdata(pdev);
/* Clean interrupts setup. */
- mlxcpld_hotplug_unset_irq(priv);
+ mlxreg_hotplug_unset_irq(priv);
return 0;
}
-static struct platform_driver mlxcpld_hotplug_driver = {
+static struct platform_driver mlxreg_hotplug_driver = {
.driver = {
- .name = "mlxcpld-hotplug",
+ .name = "mlxreg-hotplug",
},
- .probe = mlxcpld_hotplug_probe,
- .remove = mlxcpld_hotplug_remove,
+ .probe = mlxreg_hotplug_probe,
+ .remove = mlxreg_hotplug_remove,
};
-module_platform_driver(mlxcpld_hotplug_driver);
+module_platform_driver(mlxreg_hotplug_driver);
MODULE_AUTHOR("Vadim Pasternak <vadimp@...lanox.com>");
-MODULE_DESCRIPTION("Mellanox CPLD hotplug platform driver");
+MODULE_DESCRIPTION("Mellanox regmap hotplug platform driver");
MODULE_LICENSE("Dual BSD/GPL");
-MODULE_ALIAS("platform:mlxcpld-hotplug");
+MODULE_ALIAS("platform:mlxreg-hotplug");
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 8a07df5..c442d5c 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1157,7 +1157,6 @@ config INTEL_TELEMETRY
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
@@ -1167,14 +1166,6 @@ 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
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 57f37e5..c388608 100644
--- a/drivers/platform/x86/Makefile
+++ b/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
diff --git a/drivers/platform/x86/mlx-platform.c b/drivers/platform/x86/mlx-platform.c
index 504256c..0fbec1f 100644
--- a/drivers/platform/x86/mlx-platform.c
+++ b/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),
diff --git a/include/linux/platform_data/mlxcpld-hotplug.h b/include/linux/platform_data/mlxreg.h
similarity index 84%
rename from include/linux/platform_data/mlxcpld-hotplug.h
rename to include/linux/platform_data/mlxreg.h
index e4cfcff..8dcbb8e 100644
--- a/include/linux/platform_data/mlxcpld-hotplug.h
+++ b/include/linux/platform_data/mlxreg.h
@@ -1,7 +1,6 @@
/*
- * include/linux/platform_data/mlxcpld-hotplug.h
- * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
- * Copyright (c) 2016 Vadim Pasternak <vadimp@...lanox.com>
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Vadim Pasternak <vadimp@...lanox.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 */
--
2.1.4
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