platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
/*
|
2018-01-17 18:21:53 +00:00
|
|
|
* Copyright (c) 2016-2018 Mellanox Technologies. All rights reserved.
|
|
|
|
* Copyright (c) 2016-2018 Vadim Pasternak <vadimp@mellanox.com>
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
*
|
|
|
|
* Redistribution and use in source and binary forms, with or without
|
|
|
|
* modification, are permitted provided that the following conditions are met:
|
|
|
|
*
|
|
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer.
|
|
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
|
|
* documentation and/or other materials provided with the distribution.
|
|
|
|
* 3. Neither the names of the copyright holders nor the names of its
|
|
|
|
* contributors may be used to endorse or promote products derived from
|
|
|
|
* this software without specific prior written permission.
|
|
|
|
*
|
|
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
|
|
* Software Foundation.
|
|
|
|
*
|
|
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/bitops.h>
|
|
|
|
#include <linux/device.h>
|
|
|
|
#include <linux/hwmon.h>
|
|
|
|
#include <linux/hwmon-sysfs.h>
|
|
|
|
#include <linux/i2c.h>
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <linux/module.h>
|
2018-01-23 03:55:11 +00:00
|
|
|
#include <linux/of_device.h>
|
2018-01-17 18:21:53 +00:00
|
|
|
#include <linux/platform_data/mlxreg.h>
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <linux/spinlock.h>
|
2018-01-23 03:55:11 +00:00
|
|
|
#include <linux/regmap.h>
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
#include <linux/workqueue.h>
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
/* Offset of event and mask registers from status register. */
|
2018-01-17 18:21:53 +00:00
|
|
|
#define MLXREG_HOTPLUG_EVENT_OFF 1
|
2018-01-23 03:55:11 +00:00
|
|
|
#define MLXREG_HOTPLUG_MASK_OFF 2
|
2018-01-17 18:21:53 +00:00
|
|
|
#define MLXREG_HOTPLUG_AGGR_MASK_OFF 1
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
/* ASIC health parameters. */
|
|
|
|
#define MLXREG_HOTPLUG_HEALTH_MASK 0x02
|
|
|
|
#define MLXREG_HOTPLUG_RST_CNTR 3
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
#define MLXREG_HOTPLUG_ATTRS_MAX 24
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/**
|
2018-01-17 18:21:53 +00:00
|
|
|
* struct mlxreg_hotplug_priv_data - platform private data:
|
2018-01-23 03:55:11 +00:00
|
|
|
* @irq: platform device interrupt number;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* @pdev: platform device;
|
|
|
|
* @plat: platform data;
|
2018-01-23 03:55:11 +00:00
|
|
|
* @dwork: delayed work template;
|
|
|
|
* @lock: spin lock;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* @hwmon: hwmon device;
|
2018-01-17 18:21:53 +00:00
|
|
|
* @mlxreg_hotplug_attr: sysfs attributes array;
|
|
|
|
* @mlxreg_hotplug_dev_attr: sysfs sensor device attribute array;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* @group: sysfs attribute group;
|
|
|
|
* @groups: list of sysfs attribute group for hwmon registration;
|
2018-01-23 03:55:11 +00:00
|
|
|
* @cell: location of top aggregation interrupt register;
|
|
|
|
* @mask: top aggregation interrupt common mask;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* @aggr_cache: last value of aggregation register status;
|
|
|
|
*/
|
2018-01-17 18:21:53 +00:00
|
|
|
struct mlxreg_hotplug_priv_data {
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
int irq;
|
2018-01-23 03:55:11 +00:00
|
|
|
struct device *dev;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
struct platform_device *pdev;
|
2018-01-17 18:21:53 +00:00
|
|
|
struct mlxreg_hotplug_platform_data *plat;
|
2018-01-23 03:55:11 +00:00
|
|
|
struct regmap *regmap;
|
|
|
|
struct delayed_work dwork_irq;
|
|
|
|
struct delayed_work dwork;
|
|
|
|
spinlock_t lock; /* sync with interrupt */
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
struct device *hwmon;
|
2018-01-23 03:55:11 +00:00
|
|
|
struct attribute *mlxreg_hotplug_attr[MLXREG_HOTPLUG_ATTRS_MAX + 1];
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
struct sensor_device_attribute_2
|
2018-01-23 03:55:11 +00:00
|
|
|
mlxreg_hotplug_dev_attr[MLXREG_HOTPLUG_ATTRS_MAX];
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
struct attribute_group group;
|
|
|
|
const struct attribute_group *groups[2];
|
2018-01-23 03:55:11 +00:00
|
|
|
u32 cell;
|
|
|
|
u32 mask;
|
|
|
|
u32 aggr_cache;
|
|
|
|
bool after_probe;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
};
|
|
|
|
|
2018-01-23 02:50:20 +00:00
|
|
|
static int mlxreg_hotplug_device_create(struct device *dev,
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_data *data)
|
2018-01-23 02:50:20 +00:00
|
|
|
{
|
2018-01-26 19:03:45 +00:00
|
|
|
/*
|
|
|
|
* Return if adapter number is negative. It could be in case hotplug
|
|
|
|
* event is not associated with hotplug device.
|
|
|
|
*/
|
|
|
|
if (data->hpdev.nr < 0)
|
|
|
|
return 0;
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
data->hpdev.adapter = i2c_get_adapter(data->hpdev.nr);
|
|
|
|
if (!data->hpdev.adapter) {
|
2018-01-23 02:50:20 +00:00
|
|
|
dev_err(dev, "Failed to get adapter for bus %d\n",
|
2018-01-23 03:55:11 +00:00
|
|
|
data->hpdev.nr);
|
2018-01-23 02:50:20 +00:00
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
data->hpdev.client = i2c_new_device(data->hpdev.adapter,
|
|
|
|
data->hpdev.brdinfo);
|
|
|
|
if (!data->hpdev.client) {
|
2018-01-23 02:50:20 +00:00
|
|
|
dev_err(dev, "Failed to create client %s at bus %d at addr 0x%02x\n",
|
2018-01-23 03:55:11 +00:00
|
|
|
data->hpdev.brdinfo->type, data->hpdev.nr,
|
|
|
|
data->hpdev.brdinfo->addr);
|
|
|
|
|
|
|
|
i2c_put_adapter(data->hpdev.adapter);
|
|
|
|
data->hpdev.adapter = NULL;
|
2018-01-23 02:50:20 +00:00
|
|
|
return -EFAULT;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
static void mlxreg_hotplug_device_destroy(struct mlxreg_core_data *data)
|
2018-01-23 02:50:20 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
if (data->hpdev.client) {
|
|
|
|
i2c_unregister_device(data->hpdev.client);
|
|
|
|
data->hpdev.client = NULL;
|
2018-01-23 02:50:20 +00:00
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
if (data->hpdev.adapter) {
|
|
|
|
i2c_put_adapter(data->hpdev.adapter);
|
|
|
|
data->hpdev.adapter = NULL;
|
2018-01-23 02:50:20 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static ssize_t mlxreg_hotplug_attr_show(struct device *dev,
|
|
|
|
struct device_attribute *attr,
|
|
|
|
char *buf)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_hotplug_priv_data *priv = dev_get_drvdata(dev);
|
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
int index = to_sensor_dev_attr_2(attr)->index;
|
|
|
|
int nr = to_sensor_dev_attr_2(attr)->nr;
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_item *item;
|
|
|
|
struct mlxreg_core_data *data;
|
|
|
|
u32 regval;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
pdata = dev_get_platdata(&priv->pdev->dev);
|
|
|
|
item = pdata->items + nr;
|
|
|
|
data = item->data + index;
|
|
|
|
|
|
|
|
ret = regmap_read(priv->regmap, data->reg, ®val);
|
|
|
|
if (ret)
|
|
|
|
return ret;
|
|
|
|
|
|
|
|
if (item->health) {
|
|
|
|
regval &= data->mask;
|
|
|
|
} else {
|
|
|
|
/* Bit = 0 : functional if item->inversed is true. */
|
|
|
|
if (item->inversed)
|
|
|
|
regval = !(regval & data->mask);
|
|
|
|
else
|
|
|
|
regval = !!(regval & data->mask);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
return sprintf(buf, "%u\n", regval);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
#define PRIV_ATTR(i) priv->mlxreg_hotplug_attr[i]
|
|
|
|
#define PRIV_DEV_ATTR(i) priv->mlxreg_hotplug_dev_attr[i]
|
2018-01-23 03:55:11 +00:00
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static int mlxreg_hotplug_attr_init(struct mlxreg_hotplug_priv_data *priv)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
|
|
|
struct mlxreg_core_item *item;
|
|
|
|
struct mlxreg_core_data *data;
|
|
|
|
int num_attrs = 0, id = 0, i, j;
|
|
|
|
|
|
|
|
pdata = dev_get_platdata(&priv->pdev->dev);
|
|
|
|
item = pdata->items;
|
|
|
|
|
|
|
|
/* Go over all kinds of items - psu, pwr, fan. */
|
|
|
|
for (i = 0; i < pdata->counter; i++, item++) {
|
|
|
|
num_attrs += item->count;
|
|
|
|
data = item->data;
|
|
|
|
/* Go over all units within the item. */
|
|
|
|
for (j = 0; j < item->count; j++, data++, id++) {
|
|
|
|
PRIV_ATTR(id) = &PRIV_DEV_ATTR(id).dev_attr.attr;
|
|
|
|
PRIV_ATTR(id)->name = devm_kasprintf(&priv->pdev->dev,
|
|
|
|
GFP_KERNEL,
|
|
|
|
data->label);
|
|
|
|
|
|
|
|
if (!PRIV_ATTR(id)->name) {
|
|
|
|
dev_err(priv->dev, "Memory allocation failed for attr %d.\n",
|
|
|
|
id);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
|
|
|
PRIV_DEV_ATTR(id).dev_attr.attr.name =
|
|
|
|
PRIV_ATTR(id)->name;
|
|
|
|
PRIV_DEV_ATTR(id).dev_attr.attr.mode = 0444;
|
|
|
|
PRIV_DEV_ATTR(id).dev_attr.show =
|
|
|
|
mlxreg_hotplug_attr_show;
|
|
|
|
PRIV_DEV_ATTR(id).nr = i;
|
|
|
|
PRIV_DEV_ATTR(id).index = j;
|
|
|
|
sysfs_attr_init(&PRIV_DEV_ATTR(id).dev_attr.attr);
|
|
|
|
}
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
priv->group.attrs = devm_kzalloc(&priv->pdev->dev, num_attrs *
|
|
|
|
sizeof(struct attribute *),
|
|
|
|
GFP_KERNEL);
|
|
|
|
if (!priv->group.attrs)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
priv->group.attrs = priv->mlxreg_hotplug_attr;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
priv->groups[0] = &priv->group;
|
|
|
|
priv->groups[1] = NULL;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
static void
|
|
|
|
mlxreg_hotplug_work_helper(struct mlxreg_hotplug_priv_data *priv,
|
|
|
|
struct mlxreg_core_item *item)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_data *data;
|
|
|
|
u32 asserted, regval, bit;
|
|
|
|
int ret;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Validate if item related to received signal type is valid.
|
|
|
|
* It should never happen, excepted the situation when some
|
|
|
|
* piece of hardware is broken. In such situation just produce
|
|
|
|
* error message and return. Caller must continue to handle the
|
|
|
|
* signals from other devices if any.
|
|
|
|
*/
|
|
|
|
if (unlikely(!item)) {
|
2018-01-23 03:55:11 +00:00
|
|
|
dev_err(priv->dev, "False signal: at offset:mask 0x%02x:0x%02x.\n",
|
|
|
|
item->reg, item->mask);
|
|
|
|
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
/* Mask event. */
|
|
|
|
ret = regmap_write(priv->regmap, item->reg + MLXREG_HOTPLUG_MASK_OFF,
|
|
|
|
0);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Read status. */
|
|
|
|
ret = regmap_read(priv->regmap, item->reg, ®val);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Set asserted bits and save last status. */
|
|
|
|
regval &= item->mask;
|
|
|
|
asserted = item->cache ^ regval;
|
|
|
|
item->cache = regval;
|
|
|
|
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
for_each_set_bit(bit, (unsigned long *)&asserted, 8) {
|
2018-01-23 03:55:11 +00:00
|
|
|
data = item->data + bit;
|
|
|
|
if (regval & BIT(bit)) {
|
|
|
|
if (item->inversed)
|
|
|
|
mlxreg_hotplug_device_destroy(data);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
else
|
2018-01-23 03:55:11 +00:00
|
|
|
mlxreg_hotplug_device_create(priv->dev, data);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
} else {
|
2018-01-23 03:55:11 +00:00
|
|
|
if (item->inversed)
|
|
|
|
mlxreg_hotplug_device_create(priv->dev, data);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
else
|
2018-01-23 03:55:11 +00:00
|
|
|
mlxreg_hotplug_device_destroy(data);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Acknowledge event. */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_write(priv->regmap, item->reg + MLXREG_HOTPLUG_EVENT_OFF,
|
|
|
|
0);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
/* Unmask event. */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_write(priv->regmap, item->reg + MLXREG_HOTPLUG_MASK_OFF,
|
|
|
|
item->mask);
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (ret)
|
|
|
|
dev_err(priv->dev, "Failed to complete workqueue.\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
mlxreg_hotplug_health_work_helper(struct mlxreg_hotplug_priv_data *priv,
|
|
|
|
struct mlxreg_core_item *item)
|
|
|
|
{
|
|
|
|
struct mlxreg_core_data *data = item->data;
|
|
|
|
u32 regval;
|
|
|
|
int i, ret;
|
|
|
|
|
|
|
|
for (i = 0; i < item->count; i++, data++) {
|
|
|
|
/* Mask event. */
|
|
|
|
ret = regmap_write(priv->regmap, data->reg +
|
|
|
|
MLXREG_HOTPLUG_MASK_OFF, 0);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Read status. */
|
|
|
|
ret = regmap_read(priv->regmap, data->reg, ®val);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
regval &= data->mask;
|
|
|
|
item->cache = regval;
|
|
|
|
if (regval == MLXREG_HOTPLUG_HEALTH_MASK) {
|
|
|
|
if ((data->health_cntr++ == MLXREG_HOTPLUG_RST_CNTR) ||
|
|
|
|
!priv->after_probe) {
|
|
|
|
mlxreg_hotplug_device_create(priv->dev, data);
|
|
|
|
data->attached = true;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
if (data->attached) {
|
|
|
|
mlxreg_hotplug_device_destroy(data);
|
|
|
|
data->attached = false;
|
|
|
|
data->health_cntr = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Acknowledge event. */
|
|
|
|
ret = regmap_write(priv->regmap, data->reg +
|
|
|
|
MLXREG_HOTPLUG_EVENT_OFF, 0);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Unmask event. */
|
|
|
|
ret = regmap_write(priv->regmap, data->reg +
|
|
|
|
MLXREG_HOTPLUG_MASK_OFF, data->mask);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (ret)
|
|
|
|
dev_err(priv->dev, "Failed to complete workqueue.\n");
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2018-01-23 03:55:11 +00:00
|
|
|
* mlxreg_hotplug_work_handler - performs traversing of device interrupt
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* registers according to the below hierarchy schema:
|
|
|
|
*
|
2018-01-23 03:55:11 +00:00
|
|
|
* Aggregation registers (status/mask)
|
|
|
|
* PSU registers: *---*
|
|
|
|
* *-----------------* | |
|
|
|
|
* |status/event/mask|-----> | * |
|
|
|
|
* *-----------------* | |
|
|
|
|
* Power registers: | |
|
|
|
|
* *-----------------* | |
|
|
|
|
* |status/event/mask|-----> | * |
|
|
|
|
* *-----------------* | |
|
|
|
|
* FAN registers: | |--> CPU
|
|
|
|
* *-----------------* | |
|
|
|
|
* |status/event/mask|-----> | * |
|
|
|
|
* *-----------------* | |
|
|
|
|
* ASIC registers: | |
|
|
|
|
* *-----------------* | |
|
|
|
|
* |status/event/mask|-----> | * |
|
|
|
|
* *-----------------* | |
|
|
|
|
* *---*
|
|
|
|
*
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* In case some system changed are detected: FAN in/out, PSU in/out, power
|
2018-01-23 03:55:11 +00:00
|
|
|
* cable attached/detached, ASIC health good/bad, relevant device is created
|
|
|
|
* or destroyed.
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
*/
|
2018-01-17 18:21:53 +00:00
|
|
|
static void mlxreg_hotplug_work_handler(struct work_struct *work)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
|
|
|
struct mlxreg_hotplug_priv_data *priv;
|
|
|
|
struct mlxreg_core_item *item;
|
|
|
|
u32 regval, aggr_asserted;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
unsigned long flags;
|
2018-01-23 03:55:11 +00:00
|
|
|
int i, ret;
|
|
|
|
|
|
|
|
priv = container_of(work, struct mlxreg_hotplug_priv_data,
|
|
|
|
dwork_irq.work);
|
|
|
|
pdata = dev_get_platdata(&priv->pdev->dev);
|
|
|
|
item = pdata->items;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/* Mask aggregation event. */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_write(priv->regmap, pdata->cell +
|
|
|
|
MLXREG_HOTPLUG_AGGR_MASK_OFF, 0);
|
|
|
|
if (ret < 0)
|
|
|
|
goto out;
|
|
|
|
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
/* Read aggregation status. */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_read(priv->regmap, pdata->cell, ®val);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
regval &= pdata->mask;
|
|
|
|
aggr_asserted = priv->aggr_cache ^ regval;
|
|
|
|
priv->aggr_cache = regval;
|
|
|
|
|
|
|
|
/* Handle topology and health configuration changes. */
|
|
|
|
for (i = 0; i < pdata->counter; i++, item++) {
|
|
|
|
if (aggr_asserted & item->aggr_mask) {
|
|
|
|
if (item->health)
|
|
|
|
mlxreg_hotplug_health_work_helper(priv, item);
|
|
|
|
else
|
|
|
|
mlxreg_hotplug_work_helper(priv, item);
|
|
|
|
}
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
if (aggr_asserted) {
|
|
|
|
spin_lock_irqsave(&priv->lock, flags);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* It is possible, that some signals have been inserted, while
|
2018-01-17 18:21:53 +00:00
|
|
|
* interrupt has been masked by mlxreg_hotplug_work_handler.
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
* 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
|
|
|
|
* missed signals, if any. In other case work handler just
|
|
|
|
* validates that no new signals have been received during
|
|
|
|
* masking.
|
|
|
|
*/
|
2018-01-23 03:55:11 +00:00
|
|
|
cancel_delayed_work(&priv->dwork_irq);
|
|
|
|
schedule_delayed_work(&priv->dwork_irq, 0);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
spin_unlock_irqrestore(&priv->lock, flags);
|
|
|
|
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Unmask aggregation event (no need acknowledge). */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_write(priv->regmap, pdata->cell +
|
|
|
|
MLXREG_HOTPLUG_AGGR_MASK_OFF, pdata->mask);
|
|
|
|
|
|
|
|
out:
|
|
|
|
if (ret)
|
|
|
|
dev_err(priv->dev, "Failed to complete workqueue.\n");
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
static int mlxreg_hotplug_set_irq(struct mlxreg_hotplug_priv_data *priv)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
|
|
|
struct mlxreg_core_item *item;
|
|
|
|
int i, ret;
|
|
|
|
|
|
|
|
pdata = dev_get_platdata(&priv->pdev->dev);
|
|
|
|
item = pdata->items;
|
|
|
|
|
|
|
|
for (i = 0; i < pdata->counter; i++, item++) {
|
|
|
|
/* Clear group presense event. */
|
|
|
|
ret = regmap_write(priv->regmap, item->reg +
|
|
|
|
MLXREG_HOTPLUG_EVENT_OFF, 0);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Set group initial status as mask and unmask group event. */
|
|
|
|
if (item->inversed) {
|
|
|
|
item->cache = item->mask;
|
|
|
|
ret = regmap_write(priv->regmap, item->reg +
|
|
|
|
MLXREG_HOTPLUG_MASK_OFF,
|
|
|
|
item->mask);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
}
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/* Keep aggregation initial status as zero and unmask events. */
|
2018-01-23 03:55:11 +00:00
|
|
|
ret = regmap_write(priv->regmap, pdata->cell +
|
|
|
|
MLXREG_HOTPLUG_AGGR_MASK_OFF, pdata->mask);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
/* Keep low aggregation initial status as zero and unmask events. */
|
|
|
|
if (pdata->cell_low) {
|
|
|
|
ret = regmap_write(priv->regmap, pdata->cell_low +
|
|
|
|
MLXREG_HOTPLUG_AGGR_MASK_OFF,
|
|
|
|
pdata->mask_low);
|
|
|
|
if (ret)
|
|
|
|
goto out;
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/* Invoke work handler for initializing hot plug devices setting. */
|
2018-01-23 03:55:11 +00:00
|
|
|
mlxreg_hotplug_work_handler(&priv->dwork_irq.work);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
out:
|
|
|
|
if (ret)
|
|
|
|
dev_err(priv->dev, "Failed to set interrupts.\n");
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
enable_irq(priv->irq);
|
2018-01-23 03:55:11 +00:00
|
|
|
return ret;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static void mlxreg_hotplug_unset_irq(struct mlxreg_hotplug_priv_data *priv)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
|
|
|
struct mlxreg_core_item *item;
|
|
|
|
struct mlxreg_core_data *data;
|
|
|
|
int count, i, j;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
pdata = dev_get_platdata(&priv->pdev->dev);
|
|
|
|
item = pdata->items;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
disable_irq(priv->irq);
|
2018-01-23 03:55:11 +00:00
|
|
|
cancel_delayed_work_sync(&priv->dwork_irq);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
/* Mask low aggregation event, if defined. */
|
|
|
|
if (pdata->cell_low)
|
|
|
|
regmap_write(priv->regmap, pdata->cell_low +
|
|
|
|
MLXREG_HOTPLUG_AGGR_MASK_OFF, 0);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
/* Mask aggregation event. */
|
|
|
|
regmap_write(priv->regmap, pdata->cell + MLXREG_HOTPLUG_AGGR_MASK_OFF,
|
|
|
|
0);
|
|
|
|
|
|
|
|
/* Clear topology configurations. */
|
|
|
|
for (i = 0; i < pdata->counter; i++, item++) {
|
|
|
|
data = item->data;
|
|
|
|
/* Mask group presense event. */
|
|
|
|
regmap_write(priv->regmap, data->reg + MLXREG_HOTPLUG_MASK_OFF,
|
|
|
|
0);
|
|
|
|
/* Clear group presense event. */
|
|
|
|
regmap_write(priv->regmap, data->reg +
|
|
|
|
MLXREG_HOTPLUG_EVENT_OFF, 0);
|
|
|
|
|
|
|
|
/* Remove all the attached devices in group. */
|
|
|
|
count = item->count;
|
|
|
|
for (j = 0; j < count; j++, data++)
|
|
|
|
mlxreg_hotplug_device_destroy(data);
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static irqreturn_t mlxreg_hotplug_irq_handler(int irq, void *dev)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_hotplug_priv_data *priv;
|
|
|
|
|
|
|
|
priv = (struct mlxreg_hotplug_priv_data *)dev;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/* Schedule work task for immediate execution.*/
|
2018-01-23 03:55:11 +00:00
|
|
|
schedule_delayed_work(&priv->dwork_irq, 0);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static int mlxreg_hotplug_probe(struct platform_device *pdev)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_core_hotplug_platform_data *pdata;
|
2018-01-17 18:21:53 +00:00
|
|
|
struct mlxreg_hotplug_priv_data *priv;
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
int err;
|
|
|
|
|
|
|
|
pdata = dev_get_platdata(&pdev->dev);
|
|
|
|
if (!pdata) {
|
|
|
|
dev_err(&pdev->dev, "Failed to get platform data.\n");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
|
|
|
|
if (!priv)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
if (pdata->irq) {
|
|
|
|
priv->irq = pdata->irq;
|
|
|
|
} else {
|
|
|
|
priv->irq = platform_get_irq(pdev, 0);
|
|
|
|
if (priv->irq < 0) {
|
|
|
|
dev_err(&pdev->dev, "Failed to get platform irq: %d\n",
|
|
|
|
priv->irq);
|
|
|
|
return priv->irq;
|
|
|
|
}
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
priv->regmap = pdata->regmap;
|
|
|
|
priv->dev = pdev->dev.parent;
|
|
|
|
priv->pdev = pdev;
|
|
|
|
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
err = devm_request_irq(&pdev->dev, priv->irq,
|
2018-01-23 03:55:11 +00:00
|
|
|
mlxreg_hotplug_irq_handler, IRQF_TRIGGER_FALLING
|
|
|
|
| IRQF_SHARED, "mlxreg-hotplug", priv);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
if (err) {
|
|
|
|
dev_err(&pdev->dev, "Failed to request irq: %d\n", err);
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2018-01-23 03:55:11 +00:00
|
|
|
disable_irq(priv->irq);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
spin_lock_init(&priv->lock);
|
2018-01-23 03:55:11 +00:00
|
|
|
INIT_DELAYED_WORK(&priv->dwork_irq, mlxreg_hotplug_work_handler);
|
|
|
|
/* Perform initial interrupts setup. */
|
|
|
|
mlxreg_hotplug_set_irq(priv);
|
|
|
|
|
|
|
|
priv->after_probe = true;
|
|
|
|
dev_set_drvdata(&pdev->dev, priv);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
err = mlxreg_hotplug_attr_init(priv);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
if (err) {
|
2018-01-23 03:55:11 +00:00
|
|
|
dev_err(&pdev->dev, "Failed to allocate attributes: %d\n",
|
|
|
|
err);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
priv->hwmon = devm_hwmon_device_register_with_groups(&pdev->dev,
|
2018-01-17 18:21:53 +00:00
|
|
|
"mlxreg_hotplug", priv, priv->groups);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
if (IS_ERR(priv->hwmon)) {
|
|
|
|
dev_err(&pdev->dev, "Failed to register hwmon device %ld\n",
|
|
|
|
PTR_ERR(priv->hwmon));
|
|
|
|
return PTR_ERR(priv->hwmon);
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static int mlxreg_hotplug_remove(struct platform_device *pdev)
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
{
|
2018-01-23 03:55:11 +00:00
|
|
|
struct mlxreg_hotplug_priv_data *priv = dev_get_drvdata(&pdev->dev);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
/* Clean interrupts setup. */
|
2018-01-17 18:21:53 +00:00
|
|
|
mlxreg_hotplug_unset_irq(priv);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
static struct platform_driver mlxreg_hotplug_driver = {
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
.driver = {
|
2018-01-17 18:21:53 +00:00
|
|
|
.name = "mlxreg-hotplug",
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
},
|
2018-01-17 18:21:53 +00:00
|
|
|
.probe = mlxreg_hotplug_probe,
|
|
|
|
.remove = mlxreg_hotplug_remove,
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
};
|
|
|
|
|
2018-01-17 18:21:53 +00:00
|
|
|
module_platform_driver(mlxreg_hotplug_driver);
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
|
|
|
|
MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
|
2018-01-17 18:21:53 +00:00
|
|
|
MODULE_DESCRIPTION("Mellanox regmap hotplug platform driver");
|
platform/x86: Introduce support for Mellanox hotplug driver
Enable system support for the Mellanox Technologies hotplug platform
driver, which provides support for the next Mellanox basic systems:
"msx6710", "msx6720", "msb7700", "msn2700", "msx1410", "msn2410",
"msb7800", "msn2740", "msn2100" and also various number of derivative
systems from the above basic types.
This driver handles hot-plug events for the power suppliers, power
cables and fans for the above systems.
The Kconfig currently controlling compilation of this code is:
driver/platform/x86:config MLX_CPLD_PLATFORM
tristate "Mellanox platform hotplug driver support"
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>
2016-10-20 16:28:01 +00:00
|
|
|
MODULE_LICENSE("Dual BSD/GPL");
|
2018-01-17 18:21:53 +00:00
|
|
|
MODULE_ALIAS("platform:mlxreg-hotplug");
|