d2f3ab5b6b
Add 'capability' field to structure 'mlxreg_core_platform_data'. The purpose of this filed to indicate the actual number of the components within the particular group. Such components could be, for example the number of the FAN drawers. Some systems are equipped with FAN drawers with one tachometer inside, others with FAN drawers with several tachometers inside. Signed-off-by: Vadim Pasternak <vadimp@nvidia.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20200923172053.26296-5-vadimp@nvidia.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
152 lines
4.1 KiB
C
152 lines
4.1 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/*
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* Copyright (C) 2017-2020 Mellanox Technologies Ltd.
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*/
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#ifndef __LINUX_PLATFORM_DATA_MLXREG_H
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#define __LINUX_PLATFORM_DATA_MLXREG_H
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#define MLXREG_CORE_LABEL_MAX_SIZE 32
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#define MLXREG_CORE_WD_FEATURE_NOWAYOUT BIT(0)
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#define MLXREG_CORE_WD_FEATURE_START_AT_BOOT BIT(1)
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/**
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* enum mlxreg_wdt_type - type of HW watchdog
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*
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* TYPE1 HW watchdog implementation exist in old systems.
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* All new systems have TYPE2 HW watchdog.
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* TYPE3 HW watchdog can exist on all systems with new CPLD.
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* TYPE3 is selected by WD capability bit.
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*/
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enum mlxreg_wdt_type {
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MLX_WDT_TYPE1,
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MLX_WDT_TYPE2,
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MLX_WDT_TYPE3,
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};
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/**
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* struct mlxreg_hotplug_device - I2C device data:
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*
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* @adapter: I2C device adapter;
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* @client: I2C device client;
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* @brdinfo: device board information;
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* @nr: I2C device adapter number, to which device is to be attached;
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*
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* Structure represents I2C hotplug device static data (board topology) and
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* dynamic data (related kernel objects handles).
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*/
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struct mlxreg_hotplug_device {
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struct i2c_adapter *adapter;
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struct i2c_client *client;
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struct i2c_board_info *brdinfo;
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int nr;
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};
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/**
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* struct mlxreg_core_data - attributes control data:
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*
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* @label: attribute label;
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* @reg: attribute register;
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* @mask: attribute access mask;
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* @bit: attribute effective bit;
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* @capability: attribute capability register;
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* @reg_prsnt: attribute presence register;
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* @mode: access mode;
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* @np - pointer to node platform associated with attribute;
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* @hpdev - hotplug device data;
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* @health_cntr: dynamic device health indication counter;
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* @attached: true if device has been attached after good health indication;
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* @regnum: number of registers occupied by multi-register attribute;
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*/
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struct mlxreg_core_data {
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char label[MLXREG_CORE_LABEL_MAX_SIZE];
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u32 reg;
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u32 mask;
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u32 bit;
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u32 capability;
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u32 reg_prsnt;
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umode_t mode;
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struct device_node *np;
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struct mlxreg_hotplug_device hpdev;
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u32 health_cntr;
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bool attached;
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u8 regnum;
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};
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/**
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* struct mlxreg_core_item - same type components controlled by the driver:
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*
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* @data: component data;
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* @aggr_mask: group aggregation mask;
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* @reg: group interrupt status register;
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* @mask: group interrupt mask;
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* @capability: group capability register;
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* @cache: last status value for elements fro the same group;
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* @count: number of available elements in the group;
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* @ind: element's index inside the group;
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* @inversed: if 0: 0 for signal status is OK, if 1 - 1 is OK;
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* @health: true if device has health indication, false in other case;
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*/
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struct mlxreg_core_item {
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struct mlxreg_core_data *data;
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u32 aggr_mask;
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u32 reg;
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u32 mask;
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u32 capability;
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u32 cache;
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u8 count;
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u8 ind;
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u8 inversed;
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u8 health;
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};
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/**
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* struct mlxreg_core_platform_data - platform data:
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*
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* @data: instance private data;
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* @regmap: register map of parent device;
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* @counter: number of instances;
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* @features: supported features of device;
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* @version: implementation version;
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* @identity: device identity name;
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* @capability: device capability register;
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*/
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struct mlxreg_core_platform_data {
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struct mlxreg_core_data *data;
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void *regmap;
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int counter;
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u32 features;
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u32 version;
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char identity[MLXREG_CORE_LABEL_MAX_SIZE];
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u32 capability;
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};
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/**
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* struct mlxreg_core_hotplug_platform_data - hotplug platform data:
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*
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* @items: same type components with the hotplug capability;
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* @irq: platform interrupt number;
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* @regmap: register map of parent device;
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* @counter: number of the components with the hotplug capability;
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* @cell: location of top aggregation interrupt register;
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* @mask: top aggregation interrupt common mask;
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* @cell_low: location of low aggregation interrupt register;
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* @mask_low: low aggregation interrupt common mask;
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* @deferred_nr: I2C adapter number must be exist prior probing execution;
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* @shift_nr: I2C adapter numbers must be incremented by this value;
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*/
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struct mlxreg_core_hotplug_platform_data {
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struct mlxreg_core_item *items;
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int irq;
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void *regmap;
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int counter;
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u32 cell;
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u32 mask;
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u32 cell_low;
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u32 mask_low;
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int deferred_nr;
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int shift_nr;
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};
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#endif /* __LINUX_PLATFORM_DATA_MLXREG_H */
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