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linux-next/drivers/platform/x86/mlx-platform.c
Vadim Pasternak 1189456b1c platform/x86: mlx-platform: Add LED platform driver activation 
Add LED platform driver activation from mlx-platform. This LED driver uses
the same regmap infrastructure as others Mellanox platform drivers, so LED
specific registers description is added.

System LED configuration depends on system type. To support all the
relevant types per system type LED descriptions are defined for passing
to LED platform driver.

Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
2018-06-01 09:54:34 -07:00

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/*
* Copyright (c) 2016 Mellanox Technologies. All rights reserved.
* Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 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/device.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/platform_data/i2c-mux-reg.h>
#include <linux/platform_data/mlxreg.h>
#include <linux/regmap.h>
#define MLX_PLAT_DEVICE_NAME "mlxplat"
/* LPC bus IO offsets */
#define MLXPLAT_CPLD_LPC_I2C_BASE_ADRR 0x2000
#define MLXPLAT_CPLD_LPC_REG_BASE_ADRR 0x2500
#define MLXPLAT_CPLD_LPC_REG_LED1_OFFSET 0x20
#define MLXPLAT_CPLD_LPC_REG_LED2_OFFSET 0x21
#define MLXPLAT_CPLD_LPC_REG_LED3_OFFSET 0x22
#define MLXPLAT_CPLD_LPC_REG_LED4_OFFSET 0x23
#define MLXPLAT_CPLD_LPC_REG_LED5_OFFSET 0x24
#define MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET 0x3a
#define MLXPLAT_CPLD_LPC_REG_AGGR_MASK_OFFSET 0x3b
#define MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET 0x40
#define MLXPLAT_CPLD_LPC_REG_AGGRLO_MASK_OFFSET 0x41
#define MLXPLAT_CPLD_LPC_REG_PSU_OFFSET 0x58
#define MLXPLAT_CPLD_LPC_REG_PSU_EVENT_OFFSET 0x59
#define MLXPLAT_CPLD_LPC_REG_PSU_MASK_OFFSET 0x5a
#define MLXPLAT_CPLD_LPC_REG_PWR_OFFSET 0x64
#define MLXPLAT_CPLD_LPC_REG_PWR_EVENT_OFFSET 0x65
#define MLXPLAT_CPLD_LPC_REG_PWR_MASK_OFFSET 0x66
#define MLXPLAT_CPLD_LPC_REG_FAN_OFFSET 0x88
#define MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET 0x89
#define MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET 0x8a
#define MLXPLAT_CPLD_LPC_IO_RANGE 0x100
#define MLXPLAT_CPLD_LPC_I2C_CH1_OFF 0xdb
#define MLXPLAT_CPLD_LPC_I2C_CH2_OFF 0xda
#define MLXPLAT_CPLD_LPC_PIO_OFFSET 0x10000UL
#define MLXPLAT_CPLD_LPC_REG1 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
MLXPLAT_CPLD_LPC_I2C_CH1_OFF) | \
MLXPLAT_CPLD_LPC_PIO_OFFSET)
#define MLXPLAT_CPLD_LPC_REG2 ((MLXPLAT_CPLD_LPC_REG_BASE_ADRR + \
MLXPLAT_CPLD_LPC_I2C_CH2_OFF) | \
MLXPLAT_CPLD_LPC_PIO_OFFSET)
/* Masks for aggregation, psu, pwr and fan event in CPLD related registers. */
#define MLXPLAT_CPLD_AGGR_PSU_MASK_DEF 0x08
#define MLXPLAT_CPLD_AGGR_PWR_MASK_DEF 0x08
#define MLXPLAT_CPLD_AGGR_FAN_MASK_DEF 0x40
#define MLXPLAT_CPLD_AGGR_MASK_DEF (MLXPLAT_CPLD_AGGR_PSU_MASK_DEF | \
MLXPLAT_CPLD_AGGR_FAN_MASK_DEF)
#define MLXPLAT_CPLD_AGGR_MASK_NG_DEF 0x04
#define MLXPLAT_CPLD_LOW_AGGR_MASK_LOW 0xc0
#define MLXPLAT_CPLD_AGGR_MASK_MSN21XX 0x04
#define MLXPLAT_CPLD_PSU_MASK GENMASK(1, 0)
#define MLXPLAT_CPLD_PWR_MASK GENMASK(1, 0)
#define MLXPLAT_CPLD_FAN_MASK GENMASK(3, 0)
#define MLXPLAT_CPLD_FAN_NG_MASK GENMASK(5, 0)
#define MLXPLAT_CPLD_LED_LO_NIBBLE_MASK GENMASK(7, 4)
#define MLXPLAT_CPLD_LED_HI_NIBBLE_MASK GENMASK(3, 0)
/* Default I2C parent bus number */
#define MLXPLAT_CPLD_PHYS_ADAPTER_DEF_NR 1
/* Maximum number of possible physical buses equipped on system */
#define MLXPLAT_CPLD_MAX_PHYS_ADAPTER_NUM 16
/* Number of channels in group */
#define MLXPLAT_CPLD_GRP_CHNL_NUM 8
/* Start channel numbers */
#define MLXPLAT_CPLD_CH1 2
#define MLXPLAT_CPLD_CH2 10
/* Number of LPC attached MUX platform devices */
#define MLXPLAT_CPLD_LPC_MUX_DEVS 2
/* Hotplug devices adapter numbers */
#define MLXPLAT_CPLD_NR_NONE -1
#define MLXPLAT_CPLD_PSU_DEFAULT_NR 10
#define MLXPLAT_CPLD_PSU_MSNXXXX_NR 4
#define MLXPLAT_CPLD_FAN1_DEFAULT_NR 11
#define MLXPLAT_CPLD_FAN2_DEFAULT_NR 12
#define MLXPLAT_CPLD_FAN3_DEFAULT_NR 13
#define MLXPLAT_CPLD_FAN4_DEFAULT_NR 14
/* mlxplat_priv - platform private data
* @pdev_i2c - i2c controller platform device
* @pdev_mux - array of mux platform devices
* @pdev_hotplug - hotplug platform devices
* @pdev_led - led platform devices
*/
struct mlxplat_priv {
struct platform_device *pdev_i2c;
struct platform_device *pdev_mux[MLXPLAT_CPLD_LPC_MUX_DEVS];
struct platform_device *pdev_hotplug;
struct platform_device *pdev_led;
};
/* Regions for LPC I2C controller and LPC base register space */
static const struct resource mlxplat_lpc_resources[] = {
[0] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_I2C_BASE_ADRR,
MLXPLAT_CPLD_LPC_IO_RANGE,
"mlxplat_cpld_lpc_i2c_ctrl", IORESOURCE_IO),
[1] = DEFINE_RES_NAMED(MLXPLAT_CPLD_LPC_REG_BASE_ADRR,
MLXPLAT_CPLD_LPC_IO_RANGE,
"mlxplat_cpld_lpc_regs",
IORESOURCE_IO),
};
/* Platform default channels */
static const int mlxplat_default_channels[][MLXPLAT_CPLD_GRP_CHNL_NUM] = {
{
MLXPLAT_CPLD_CH1, MLXPLAT_CPLD_CH1 + 1, MLXPLAT_CPLD_CH1 + 2,
MLXPLAT_CPLD_CH1 + 3, MLXPLAT_CPLD_CH1 + 4, MLXPLAT_CPLD_CH1 +
5, MLXPLAT_CPLD_CH1 + 6, MLXPLAT_CPLD_CH1 + 7
},
{
MLXPLAT_CPLD_CH2, MLXPLAT_CPLD_CH2 + 1, MLXPLAT_CPLD_CH2 + 2,
MLXPLAT_CPLD_CH2 + 3, MLXPLAT_CPLD_CH2 + 4, MLXPLAT_CPLD_CH2 +
5, MLXPLAT_CPLD_CH2 + 6, MLXPLAT_CPLD_CH2 + 7
},
};
/* Platform channels for MSN21xx system family */
static const int mlxplat_msn21xx_channels[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
/* Platform mux data */
static struct i2c_mux_reg_platform_data mlxplat_mux_data[] = {
{
.parent = 1,
.base_nr = MLXPLAT_CPLD_CH1,
.write_only = 1,
.reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG1,
.reg_size = 1,
.idle_in_use = 1,
},
{
.parent = 1,
.base_nr = MLXPLAT_CPLD_CH2,
.write_only = 1,
.reg = (void __iomem *)MLXPLAT_CPLD_LPC_REG2,
.reg_size = 1,
.idle_in_use = 1,
},
};
/* Platform hotplug devices */
static struct i2c_board_info mlxplat_mlxcpld_psu[] = {
{
I2C_BOARD_INFO("24c02", 0x51),
},
{
I2C_BOARD_INFO("24c02", 0x50),
},
};
static struct i2c_board_info mlxplat_mlxcpld_ng_psu[] = {
{
I2C_BOARD_INFO("24c32", 0x51),
},
{
I2C_BOARD_INFO("24c32", 0x50),
},
};
static struct i2c_board_info mlxplat_mlxcpld_pwr[] = {
{
I2C_BOARD_INFO("dps460", 0x59),
},
{
I2C_BOARD_INFO("dps460", 0x58),
},
};
static struct i2c_board_info mlxplat_mlxcpld_fan[] = {
{
I2C_BOARD_INFO("24c32", 0x50),
},
{
I2C_BOARD_INFO("24c32", 0x50),
},
{
I2C_BOARD_INFO("24c32", 0x50),
},
{
I2C_BOARD_INFO("24c32", 0x50),
},
};
/* Platform hotplug default data */
static struct mlxreg_core_data mlxplat_mlxcpld_default_psu_items_data[] = {
{
.label = "psu1",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_psu[0],
.hpdev.nr = MLXPLAT_CPLD_PSU_DEFAULT_NR,
},
{
.label = "psu2",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_psu[1],
.hpdev.nr = MLXPLAT_CPLD_PSU_DEFAULT_NR,
},
};
static struct mlxreg_core_data mlxplat_mlxcpld_default_pwr_items_data[] = {
{
.label = "pwr1",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[0],
.hpdev.nr = MLXPLAT_CPLD_PSU_DEFAULT_NR,
},
{
.label = "pwr2",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[1],
.hpdev.nr = MLXPLAT_CPLD_PSU_DEFAULT_NR,
},
};
static struct mlxreg_core_data mlxplat_mlxcpld_default_fan_items_data[] = {
{
.label = "fan1",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_fan[0],
.hpdev.nr = MLXPLAT_CPLD_FAN1_DEFAULT_NR,
},
{
.label = "fan2",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_fan[1],
.hpdev.nr = MLXPLAT_CPLD_FAN2_DEFAULT_NR,
},
{
.label = "fan3",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(2),
.hpdev.brdinfo = &mlxplat_mlxcpld_fan[2],
.hpdev.nr = MLXPLAT_CPLD_FAN3_DEFAULT_NR,
},
{
.label = "fan4",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(3),
.hpdev.brdinfo = &mlxplat_mlxcpld_fan[3],
.hpdev.nr = MLXPLAT_CPLD_FAN4_DEFAULT_NR,
},
};
static struct mlxreg_core_item mlxplat_mlxcpld_default_items[] = {
{
.data = mlxplat_mlxcpld_default_psu_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_PSU_MASK_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = MLXPLAT_CPLD_PSU_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_psu),
.inversed = 1,
.health = false,
},
{
.data = mlxplat_mlxcpld_default_pwr_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_PWR_MASK_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = MLXPLAT_CPLD_PWR_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_pwr),
.inversed = 0,
.health = false,
},
{
.data = mlxplat_mlxcpld_default_fan_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_FAN_MASK_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = MLXPLAT_CPLD_FAN_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_fan),
.inversed = 1,
.health = false,
},
};
static
struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_default_data = {
.items = mlxplat_mlxcpld_default_items,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_default_items),
.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
.mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
};
static struct mlxreg_core_data mlxplat_mlxcpld_msn21xx_pwr_items_data[] = {
{
.label = "pwr1",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(0),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "pwr2",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(1),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
};
/* Platform hotplug MSN21xx system family data */
static struct mlxreg_core_item mlxplat_mlxcpld_msn21xx_items[] = {
{
.data = mlxplat_mlxcpld_msn21xx_pwr_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_PWR_MASK_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = MLXPLAT_CPLD_PWR_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_msn21xx_pwr_items_data),
.inversed = 0,
.health = false,
},
};
static
struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn21xx_data = {
.items = mlxplat_mlxcpld_msn21xx_items,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn21xx_items),
.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
.mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
.cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
};
/* Platform hotplug msn274x system family data */
static struct mlxreg_core_data mlxplat_mlxcpld_msn274x_psu_items_data[] = {
{
.label = "psu1",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_psu[0],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
{
.label = "psu2",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_psu[1],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
};
static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_pwr_items_data[] = {
{
.label = "pwr1",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[0],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
{
.label = "pwr2",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_pwr[1],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
};
static struct mlxreg_core_data mlxplat_mlxcpld_msn274x_fan_items_data[] = {
{
.label = "fan1",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(0),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan2",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(1),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan3",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(2),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan4",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(3),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
};
static struct mlxreg_core_item mlxplat_mlxcpld_msn274x_items[] = {
{
.data = mlxplat_mlxcpld_msn274x_psu_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = MLXPLAT_CPLD_PSU_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_psu_items_data),
.inversed = 1,
.health = false,
},
{
.data = mlxplat_mlxcpld_default_ng_pwr_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = MLXPLAT_CPLD_PWR_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_pwr_items_data),
.inversed = 0,
.health = false,
},
{
.data = mlxplat_mlxcpld_msn274x_fan_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = MLXPLAT_CPLD_FAN_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_fan_items_data),
.inversed = 1,
.health = false,
},
};
static
struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn274x_data = {
.items = mlxplat_mlxcpld_msn274x_items,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn274x_items),
.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
.mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
};
/* Platform hotplug MSN201x system family data */
static struct mlxreg_core_data mlxplat_mlxcpld_msn201x_pwr_items_data[] = {
{
.label = "pwr1",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(0),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "pwr2",
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = BIT(1),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
};
static struct mlxreg_core_item mlxplat_mlxcpld_msn201x_items[] = {
{
.data = mlxplat_mlxcpld_msn201x_pwr_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_PWR_MASK_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = MLXPLAT_CPLD_PWR_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_msn201x_pwr_items_data),
.inversed = 0,
.health = false,
},
};
static
struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_msn201x_data = {
.items = mlxplat_mlxcpld_msn21xx_items,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn201x_items),
.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
.mask = MLXPLAT_CPLD_AGGR_MASK_DEF,
.cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
};
/* Platform hotplug next generation system family data */
static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_psu_items_data[] = {
{
.label = "psu1",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(0),
.hpdev.brdinfo = &mlxplat_mlxcpld_ng_psu[0],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
{
.label = "psu2",
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = BIT(1),
.hpdev.brdinfo = &mlxplat_mlxcpld_ng_psu[1],
.hpdev.nr = MLXPLAT_CPLD_PSU_MSNXXXX_NR,
},
};
static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_fan_items_data[] = {
{
.label = "fan1",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(0),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan2",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(1),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan3",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(2),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan4",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(3),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan5",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(4),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
{
.label = "fan6",
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = BIT(5),
.hpdev.nr = MLXPLAT_CPLD_NR_NONE,
},
};
static struct mlxreg_core_item mlxplat_mlxcpld_default_ng_items[] = {
{
.data = mlxplat_mlxcpld_default_ng_psu_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PSU_OFFSET,
.mask = MLXPLAT_CPLD_PSU_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_psu_items_data),
.inversed = 1,
.health = false,
},
{
.data = mlxplat_mlxcpld_default_ng_pwr_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_PWR_OFFSET,
.mask = MLXPLAT_CPLD_PWR_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_pwr_items_data),
.inversed = 0,
.health = false,
},
{
.data = mlxplat_mlxcpld_default_ng_fan_items_data,
.aggr_mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.reg = MLXPLAT_CPLD_LPC_REG_FAN_OFFSET,
.mask = MLXPLAT_CPLD_FAN_NG_MASK,
.count = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_fan_items_data),
.inversed = 1,
.health = false,
},
};
static
struct mlxreg_core_hotplug_platform_data mlxplat_mlxcpld_default_ng_data = {
.items = mlxplat_mlxcpld_default_ng_items,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_items),
.cell = MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET,
.mask = MLXPLAT_CPLD_AGGR_MASK_NG_DEF,
.cell_low = MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET,
.mask_low = MLXPLAT_CPLD_LOW_AGGR_MASK_LOW,
};
/* Platform led default data */
static struct mlxreg_core_data mlxplat_mlxcpld_default_led_data[] = {
{
.label = "status:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "status:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK
},
{
.label = "psu:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "psu:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan1:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan1:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan2:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan2:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan3:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan3:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan4:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan4:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
};
static struct mlxreg_core_platform_data mlxplat_default_led_data = {
.data = mlxplat_mlxcpld_default_led_data,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_default_led_data),
};
/* Platform led MSN21xx system family data */
static struct mlxreg_core_data mlxplat_mlxcpld_msn21xx_led_data[] = {
{
.label = "status:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "status:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK
},
{
.label = "fan:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "psu1:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "psu1:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "psu2:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "psu2:red",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "uid:blue",
.reg = MLXPLAT_CPLD_LPC_REG_LED5_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
};
static struct mlxreg_core_platform_data mlxplat_msn21xx_led_data = {
.data = mlxplat_mlxcpld_msn21xx_led_data,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_msn21xx_led_data),
};
/* Platform led for default data for 200GbE systems */
static struct mlxreg_core_data mlxplat_mlxcpld_default_ng_led_data[] = {
{
.label = "status:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "status:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK
},
{
.label = "psu:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "psu:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED1_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan1:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan1:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan2:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan2:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED2_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan3:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan3:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan4:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan4:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED3_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan5:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan5:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_LO_NIBBLE_MASK,
},
{
.label = "fan6:green",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
{
.label = "fan6:orange",
.reg = MLXPLAT_CPLD_LPC_REG_LED4_OFFSET,
.mask = MLXPLAT_CPLD_LED_HI_NIBBLE_MASK,
},
};
static struct mlxreg_core_platform_data mlxplat_default_ng_led_data = {
.data = mlxplat_mlxcpld_default_ng_led_data,
.counter = ARRAY_SIZE(mlxplat_mlxcpld_default_ng_led_data),
};
static bool mlxplat_mlxcpld_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MLXPLAT_CPLD_LPC_REG_LED1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGRLO_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET:
return true;
}
return false;
}
static bool mlxplat_mlxcpld_readable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MLXPLAT_CPLD_LPC_REG_LED1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGRLO_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET:
return true;
}
return false;
}
static bool mlxplat_mlxcpld_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case MLXPLAT_CPLD_LPC_REG_LED1_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED2_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED3_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED4_OFFSET:
case MLXPLAT_CPLD_LPC_REG_LED5_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGRLO_OFFSET:
case MLXPLAT_CPLD_LPC_REG_AGGRLO_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PSU_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_PWR_MASK_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_EVENT_OFFSET:
case MLXPLAT_CPLD_LPC_REG_FAN_MASK_OFFSET:
return true;
}
return false;
}
struct mlxplat_mlxcpld_regmap_context {
void __iomem *base;
};
static struct mlxplat_mlxcpld_regmap_context mlxplat_mlxcpld_regmap_ctx;
static int
mlxplat_mlxcpld_reg_read(void *context, unsigned int reg, unsigned int *val)
{
struct mlxplat_mlxcpld_regmap_context *ctx = context;
*val = ioread8(ctx->base + reg);
return 0;
}
static int
mlxplat_mlxcpld_reg_write(void *context, unsigned int reg, unsigned int val)
{
struct mlxplat_mlxcpld_regmap_context *ctx = context;
iowrite8(val, ctx->base + reg);
return 0;
}
static const struct regmap_config mlxplat_mlxcpld_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = 255,
.cache_type = REGCACHE_FLAT,
.writeable_reg = mlxplat_mlxcpld_writeable_reg,
.readable_reg = mlxplat_mlxcpld_readable_reg,
.volatile_reg = mlxplat_mlxcpld_volatile_reg,
.reg_read = mlxplat_mlxcpld_reg_read,
.reg_write = mlxplat_mlxcpld_reg_write,
};
static struct resource mlxplat_mlxcpld_resources[] = {
[0] = DEFINE_RES_IRQ_NAMED(17, "mlxreg-hotplug"),
};
static struct platform_device *mlxplat_dev;
static struct mlxreg_core_hotplug_platform_data *mlxplat_hotplug;
static struct mlxreg_core_platform_data *mlxplat_led;
static int __init mlxplat_dmi_default_matched(const struct dmi_system_id *dmi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
mlxplat_mux_data[i].values = mlxplat_default_channels[i];
mlxplat_mux_data[i].n_values =
ARRAY_SIZE(mlxplat_default_channels[i]);
}
mlxplat_hotplug = &mlxplat_mlxcpld_default_data;
mlxplat_hotplug->deferred_nr =
mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
mlxplat_led = &mlxplat_default_led_data;
return 1;
};
static int __init mlxplat_dmi_msn21xx_matched(const struct dmi_system_id *dmi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
mlxplat_mux_data[i].n_values =
ARRAY_SIZE(mlxplat_msn21xx_channels);
}
mlxplat_hotplug = &mlxplat_mlxcpld_msn21xx_data;
mlxplat_hotplug->deferred_nr =
mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
mlxplat_led = &mlxplat_msn21xx_led_data;
return 1;
};
static int __init mlxplat_dmi_msn274x_matched(const struct dmi_system_id *dmi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
mlxplat_mux_data[i].n_values =
ARRAY_SIZE(mlxplat_msn21xx_channels);
}
mlxplat_hotplug = &mlxplat_mlxcpld_msn274x_data;
mlxplat_hotplug->deferred_nr =
mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
mlxplat_led = &mlxplat_default_led_data;
return 1;
};
static int __init mlxplat_dmi_msn201x_matched(const struct dmi_system_id *dmi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
mlxplat_mux_data[i].n_values =
ARRAY_SIZE(mlxplat_msn21xx_channels);
}
mlxplat_hotplug = &mlxplat_mlxcpld_msn201x_data;
mlxplat_hotplug->deferred_nr =
mlxplat_default_channels[i - 1][MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
mlxplat_led = &mlxplat_default_ng_led_data;
return 1;
};
static int __init mlxplat_dmi_qmb7xx_matched(const struct dmi_system_id *dmi)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
mlxplat_mux_data[i].values = mlxplat_msn21xx_channels;
mlxplat_mux_data[i].n_values =
ARRAY_SIZE(mlxplat_msn21xx_channels);
}
mlxplat_hotplug = &mlxplat_mlxcpld_default_ng_data;
mlxplat_hotplug->deferred_nr =
mlxplat_msn21xx_channels[MLXPLAT_CPLD_GRP_CHNL_NUM - 1];
mlxplat_led = &mlxplat_msn21xx_led_data;
return 1;
};
static const struct dmi_system_id mlxplat_dmi_table[] __initconst = {
{
.callback = mlxplat_dmi_msn274x_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSN274"),
},
},
{
.callback = mlxplat_dmi_default_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSN24"),
},
},
{
.callback = mlxplat_dmi_default_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSN27"),
},
},
{
.callback = mlxplat_dmi_default_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSB"),
},
},
{
.callback = mlxplat_dmi_default_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSX"),
},
},
{
.callback = mlxplat_dmi_msn21xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSN21"),
},
},
{
.callback = mlxplat_dmi_msn201x_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "MSN201"),
},
},
{
.callback = mlxplat_dmi_qmb7xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "QMB7"),
},
},
{
.callback = mlxplat_dmi_qmb7xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "SN37"),
},
},
{
.callback = mlxplat_dmi_qmb7xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Mellanox Technologies"),
DMI_MATCH(DMI_PRODUCT_NAME, "SN34"),
},
},
{
.callback = mlxplat_dmi_default_matched,
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "VMOD0001"),
},
},
{
.callback = mlxplat_dmi_msn21xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "VMOD0002"),
},
},
{
.callback = mlxplat_dmi_msn274x_matched,
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "VMOD0003"),
},
},
{
.callback = mlxplat_dmi_msn201x_matched,
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "VMOD0004"),
},
},
{
.callback = mlxplat_dmi_qmb7xx_matched,
.matches = {
DMI_MATCH(DMI_BOARD_NAME, "VMOD0005"),
},
},
{ }
};
MODULE_DEVICE_TABLE(dmi, mlxplat_dmi_table);
static int mlxplat_mlxcpld_verify_bus_topology(int *nr)
{
struct i2c_adapter *search_adap;
int shift, i;
/* Scan adapters from expected id to verify it is free. */
*nr = MLXPLAT_CPLD_PHYS_ADAPTER_DEF_NR;
for (i = MLXPLAT_CPLD_PHYS_ADAPTER_DEF_NR; i <
MLXPLAT_CPLD_MAX_PHYS_ADAPTER_NUM; i++) {
search_adap = i2c_get_adapter(i);
if (search_adap) {
i2c_put_adapter(search_adap);
continue;
}
/* Return if expected parent adapter is free. */
if (i == MLXPLAT_CPLD_PHYS_ADAPTER_DEF_NR)
return 0;
break;
}
/* Return with error if free id for adapter is not found. */
if (i == MLXPLAT_CPLD_MAX_PHYS_ADAPTER_NUM)
return -ENODEV;
/* Shift adapter ids, since expected parent adapter is not free. */
*nr = i;
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
shift = *nr - mlxplat_mux_data[i].parent;
mlxplat_mux_data[i].parent = *nr;
mlxplat_mux_data[i].base_nr += shift;
if (shift > 0)
mlxplat_hotplug->shift_nr = shift;
}
return 0;
}
static int __init mlxplat_init(void)
{
struct mlxplat_priv *priv;
int i, nr, err;
if (!dmi_check_system(mlxplat_dmi_table))
return -ENODEV;
mlxplat_dev = platform_device_register_simple(MLX_PLAT_DEVICE_NAME, -1,
mlxplat_lpc_resources,
ARRAY_SIZE(mlxplat_lpc_resources));
if (IS_ERR(mlxplat_dev))
return PTR_ERR(mlxplat_dev);
priv = devm_kzalloc(&mlxplat_dev->dev, sizeof(struct mlxplat_priv),
GFP_KERNEL);
if (!priv) {
err = -ENOMEM;
goto fail_alloc;
}
platform_set_drvdata(mlxplat_dev, priv);
err = mlxplat_mlxcpld_verify_bus_topology(&nr);
if (nr < 0)
goto fail_alloc;
nr = (nr == MLXPLAT_CPLD_MAX_PHYS_ADAPTER_NUM) ? -1 : nr;
priv->pdev_i2c = platform_device_register_simple("i2c_mlxcpld", nr,
NULL, 0);
if (IS_ERR(priv->pdev_i2c)) {
err = PTR_ERR(priv->pdev_i2c);
goto fail_alloc;
}
for (i = 0; i < ARRAY_SIZE(mlxplat_mux_data); i++) {
priv->pdev_mux[i] = platform_device_register_resndata(
&mlxplat_dev->dev,
"i2c-mux-reg", i, NULL,
0, &mlxplat_mux_data[i],
sizeof(mlxplat_mux_data[i]));
if (IS_ERR(priv->pdev_mux[i])) {
err = PTR_ERR(priv->pdev_mux[i]);
goto fail_platform_mux_register;
}
}
mlxplat_mlxcpld_regmap_ctx.base = devm_ioport_map(&mlxplat_dev->dev,
mlxplat_lpc_resources[1].start, 1);
if (!mlxplat_mlxcpld_regmap_ctx.base) {
err = -ENOMEM;
goto fail_platform_mux_register;
}
mlxplat_hotplug->regmap = devm_regmap_init(&mlxplat_dev->dev, NULL,
&mlxplat_mlxcpld_regmap_ctx,
&mlxplat_mlxcpld_regmap_config);
if (IS_ERR(mlxplat_hotplug->regmap)) {
err = PTR_ERR(mlxplat_hotplug->regmap);
goto fail_platform_mux_register;
}
priv->pdev_hotplug = platform_device_register_resndata(
&mlxplat_dev->dev, "mlxreg-hotplug",
PLATFORM_DEVID_NONE,
mlxplat_mlxcpld_resources,
ARRAY_SIZE(mlxplat_mlxcpld_resources),
mlxplat_hotplug, sizeof(*mlxplat_hotplug));
if (IS_ERR(priv->pdev_hotplug)) {
err = PTR_ERR(priv->pdev_hotplug);
goto fail_platform_mux_register;
}
/* Add LED driver. */
mlxplat_led->regmap = mlxplat_hotplug->regmap;
priv->pdev_led = platform_device_register_resndata(
&mlxplat_dev->dev, "leds-mlxreg",
PLATFORM_DEVID_NONE, NULL, 0,
mlxplat_led, sizeof(*mlxplat_led));
if (IS_ERR(priv->pdev_led)) {
err = PTR_ERR(priv->pdev_led);
goto fail_platform_hotplug_register;
}
/* Sync registers with hardware. */
regcache_mark_dirty(mlxplat_hotplug->regmap);
err = regcache_sync(mlxplat_hotplug->regmap);
if (err)
goto fail_platform_led_register;
return 0;
fail_platform_led_register:
platform_device_unregister(priv->pdev_led);
fail_platform_hotplug_register:
platform_device_unregister(priv->pdev_hotplug);
fail_platform_mux_register:
while (--i >= 0)
platform_device_unregister(priv->pdev_mux[i]);
platform_device_unregister(priv->pdev_i2c);
fail_alloc:
platform_device_unregister(mlxplat_dev);
return err;
}
module_init(mlxplat_init);
static void __exit mlxplat_exit(void)
{
struct mlxplat_priv *priv = platform_get_drvdata(mlxplat_dev);
int i;
platform_device_unregister(priv->pdev_led);
platform_device_unregister(priv->pdev_hotplug);
for (i = ARRAY_SIZE(mlxplat_mux_data) - 1; i >= 0 ; i--)
platform_device_unregister(priv->pdev_mux[i]);
platform_device_unregister(priv->pdev_i2c);
platform_device_unregister(mlxplat_dev);
}
module_exit(mlxplat_exit);
MODULE_AUTHOR("Vadim Pasternak (vadimp@mellanox.com)");
MODULE_DESCRIPTION("Mellanox platform driver");
MODULE_LICENSE("Dual BSD/GPL");
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