lkml.org 
[lkml]   [2022]   [Mar]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v2 5/6] hwmon: (nct6775) Split core and platform driver
    Date
    This splits the nct6775 driver into an interface-independent core and
    a separate platform driver that wraps inb/outb port I/O (or asuswmi
    methods) around that core.

    Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
    Tested-by: Renze Nicolai <renze@rnplus.nl>
    ---
    MAINTAINERS | 6 +-
    drivers/hwmon/Kconfig | 15 +-
    drivers/hwmon/Makefile | 3 +-
    drivers/hwmon/{nct6775.c => nct6775-core.c} | 1465 +------------------
    drivers/hwmon/nct6775-platform.c | 1232 ++++++++++++++++
    drivers/hwmon/nct6775.h | 252 ++++
    6 files changed, 1532 insertions(+), 1441 deletions(-)
    rename drivers/hwmon/{nct6775.c => nct6775-core.c} (76%)
    create mode 100644 drivers/hwmon/nct6775-platform.c
    create mode 100644 drivers/hwmon/nct6775.h

    diff --git a/MAINTAINERS b/MAINTAINERS
    index a9c9ee378f93..f093e40d2b16 100644
    --- a/MAINTAINERS
    +++ b/MAINTAINERS
    @@ -13287,12 +13287,14 @@ M: Samuel Mendoza-Jonas <sam@mendozajonas.com>
    S: Maintained
    F: net/ncsi/

    -NCT6775 HARDWARE MONITOR DRIVER
    +NCT6775 HARDWARE MONITOR DRIVER - CORE & PLATFORM DRIVER
    M: Guenter Roeck <linux@roeck-us.net>
    L: linux-hwmon@vger.kernel.org
    S: Maintained
    F: Documentation/hwmon/nct6775.rst
    -F: drivers/hwmon/nct6775.c
    +F: drivers/hwmon/nct6775-core.c
    +F: drivers/hwmon/nct6775-platform.c
    +F: drivers/hwmon/nct6775.h

    NETDEVSIM
    M: Jakub Kicinski <kuba@kernel.org>
    diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
    index 9ab4e9b3d27b..1c657100c392 100644
    --- a/drivers/hwmon/Kconfig
    +++ b/drivers/hwmon/Kconfig
    @@ -1458,9 +1458,20 @@ config SENSORS_NCT6683
    will be called nct6683.

    config SENSORS_NCT6775
    - tristate "Nuvoton NCT6775F and compatibles"
    + tristate
    + help
    + This module contains common code shared by the platform and
    + i2c versions of the nct6775 driver; it is not useful on its
    + own.
    +
    + If built as a module, the module will be called
    + nct6775-core.
    +
    +config SENSORS_NCT6775_PLATFORM
    + tristate "Platform driver for Nuvoton NCT6775F and compatibles"
    depends on !PPC
    depends on ACPI_WMI || ACPI_WMI=n
    + select SENSORS_NCT6775
    select HWMON_VID
    help
    If you say yes here you get support for the hardware monitoring
    @@ -1470,7 +1481,7 @@ config SENSORS_NCT6775
    NCT6775F and NCT6776F.

    This driver can also be built as a module. If so, the module
    - will be called nct6775.
    + will be called nct6775-platform.

    config SENSORS_NCT7802
    tristate "Nuvoton NCT7802Y"
    diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile
    index 4ed138d0621f..2453c087cf1d 100644
    --- a/drivers/hwmon/Makefile
    +++ b/drivers/hwmon/Makefile
    @@ -154,7 +154,8 @@ obj-$(CONFIG_SENSORS_MLXREG_FAN) += mlxreg-fan.o
    obj-$(CONFIG_SENSORS_MENF21BMC_HWMON) += menf21bmc_hwmon.o
    obj-$(CONFIG_SENSORS_MR75203) += mr75203.o
    obj-$(CONFIG_SENSORS_NCT6683) += nct6683.o
    -obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o
    +obj-$(CONFIG_SENSORS_NCT6775) += nct6775-core.o
    +obj-$(CONFIG_SENSORS_NCT6775_PLATFORM) += nct6775-platform.o
    obj-$(CONFIG_SENSORS_NCT7802) += nct7802.o
    obj-$(CONFIG_SENSORS_NCT7904) += nct7904.o
    obj-$(CONFIG_SENSORS_NPCM7XX) += npcm750-pwm-fan.o
    diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775-core.c
    similarity index 76%
    rename from drivers/hwmon/nct6775.c
    rename to drivers/hwmon/nct6775-core.c
    index 99b4e308a053..cb3958c977fa 100644
    --- a/drivers/hwmon/nct6775.c
    +++ b/drivers/hwmon/nct6775-core.c
    @@ -44,25 +44,20 @@
    #include <linux/init.h>
    #include <linux/slab.h>
    #include <linux/jiffies.h>
    -#include <linux/platform_device.h>
    #include <linux/hwmon.h>
    #include <linux/hwmon-sysfs.h>
    -#include <linux/hwmon-vid.h>
    #include <linux/err.h>
    #include <linux/mutex.h>
    -#include <linux/acpi.h>
    #include <linux/bitops.h>
    -#include <linux/dmi.h>
    -#include <linux/io.h>
    #include <linux/nospec.h>
    #include <linux/regmap.h>
    -#include <linux/wmi.h>
    #include "lm75.h"
    +#include "nct6775.h"

    -#define USE_ALTERNATE
    +#undef DEFAULT_SYMBOL_NAMESPACE
    +#define DEFAULT_SYMBOL_NAMESPACE HWMON_NCT6775

    -enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
    - nct6793, nct6795, nct6796, nct6797, nct6798 };
    +#define USE_ALTERNATE

    /* used to set data->name = nct6775_device_names[data->sio_kind] */
    static const char * const nct6775_device_names[] = {
    @@ -80,242 +75,6 @@ static const char * const nct6775_device_names[] = {
    "nct6798",
    };

    -static const char * const nct6775_sio_names[] __initconst = {
    - "NCT6106D",
    - "NCT6116D",
    - "NCT6775F",
    - "NCT6776D/F",
    - "NCT6779D",
    - "NCT6791D",
    - "NCT6792D",
    - "NCT6793D",
    - "NCT6795D",
    - "NCT6796D",
    - "NCT6797D",
    - "NCT6798D",
    -};
    -
    -static unsigned short force_id;
    -module_param(force_id, ushort, 0);
    -MODULE_PARM_DESC(force_id, "Override the detected device ID");
    -
    -static unsigned short fan_debounce;
    -module_param(fan_debounce, ushort, 0);
    -MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
    -
    -#define DRVNAME "nct6775"
    -
    -/*
    - * Super-I/O constants and functions
    - */
    -
    -#define NCT6775_LD_ACPI 0x0a
    -#define NCT6775_LD_HWM 0x0b
    -#define NCT6775_LD_VID 0x0d
    -#define NCT6775_LD_12 0x12
    -
    -#define SIO_REG_LDSEL 0x07 /* Logical device select */
    -#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
    -#define SIO_REG_ENABLE 0x30 /* Logical device enable */
    -#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
    -
    -#define SIO_NCT6106_ID 0xc450
    -#define SIO_NCT6116_ID 0xd280
    -#define SIO_NCT6775_ID 0xb470
    -#define SIO_NCT6776_ID 0xc330
    -#define SIO_NCT6779_ID 0xc560
    -#define SIO_NCT6791_ID 0xc800
    -#define SIO_NCT6792_ID 0xc910
    -#define SIO_NCT6793_ID 0xd120
    -#define SIO_NCT6795_ID 0xd350
    -#define SIO_NCT6796_ID 0xd420
    -#define SIO_NCT6797_ID 0xd450
    -#define SIO_NCT6798_ID 0xd428
    -#define SIO_ID_MASK 0xFFF8
    -
    -enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
    -enum sensor_access { access_direct, access_asuswmi };
    -
    -struct nct6775_sio_data {
    - int sioreg;
    - int ld;
    - enum kinds kind;
    - enum sensor_access access;
    -
    - /* superio_() callbacks */
    - void (*sio_outb)(struct nct6775_sio_data *sio_data, int reg, int val);
    - int (*sio_inb)(struct nct6775_sio_data *sio_data, int reg);
    - void (*sio_select)(struct nct6775_sio_data *sio_data, int ld);
    - int (*sio_enter)(struct nct6775_sio_data *sio_data);
    - void (*sio_exit)(struct nct6775_sio_data *sio_data);
    -};
    -
    -#define ASUSWMI_MONITORING_GUID "466747A0-70EC-11DE-8A39-0800200C9A66"
    -#define ASUSWMI_METHODID_RSIO 0x5253494F
    -#define ASUSWMI_METHODID_WSIO 0x5753494F
    -#define ASUSWMI_METHODID_RHWM 0x5248574D
    -#define ASUSWMI_METHODID_WHWM 0x5748574D
    -#define ASUSWMI_UNSUPPORTED_METHOD 0xFFFFFFFE
    -
    -static int nct6775_asuswmi_evaluate_method(u32 method_id, u8 bank, u8 reg, u8 val, u32 *retval)
    -{
    -#if IS_ENABLED(CONFIG_ACPI_WMI)
    - u32 args = bank | (reg << 8) | (val << 16);
    - struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
    - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
    - acpi_status status;
    - union acpi_object *obj;
    - u32 tmp = ASUSWMI_UNSUPPORTED_METHOD;
    -
    - status = wmi_evaluate_method(ASUSWMI_MONITORING_GUID, 0,
    - method_id, &input, &output);
    -
    - if (ACPI_FAILURE(status))
    - return -EIO;
    -
    - obj = output.pointer;
    - if (obj && obj->type == ACPI_TYPE_INTEGER)
    - tmp = obj->integer.value;
    -
    - if (retval)
    - *retval = tmp;
    -
    - kfree(obj);
    -
    - if (tmp == ASUSWMI_UNSUPPORTED_METHOD)
    - return -ENODEV;
    - return 0;
    -#else
    - return -EOPNOTSUPP;
    -#endif
    -}
    -
    -static inline int nct6775_asuswmi_write(u8 bank, u8 reg, u8 val)
    -{
    - return nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_WHWM, bank,
    - reg, val, NULL);
    -}
    -
    -static inline int nct6775_asuswmi_read(u8 bank, u8 reg, u8 *val)
    -{
    - u32 ret, tmp = 0;
    -
    - ret = nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_RHWM, bank,
    - reg, 0, &tmp);
    - *val = tmp;
    - return ret;
    -}
    -
    -static int superio_wmi_inb(struct nct6775_sio_data *sio_data, int reg)
    -{
    - int tmp = 0;
    -
    - nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_RSIO, sio_data->ld,
    - reg, 0, &tmp);
    - return tmp;
    -}
    -
    -static void superio_wmi_outb(struct nct6775_sio_data *sio_data, int reg, int val)
    -{
    - nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_WSIO, sio_data->ld,
    - reg, val, NULL);
    -}
    -
    -static void superio_wmi_select(struct nct6775_sio_data *sio_data, int ld)
    -{
    - sio_data->ld = ld;
    -}
    -
    -static int superio_wmi_enter(struct nct6775_sio_data *sio_data)
    -{
    - return 0;
    -}
    -
    -static void superio_wmi_exit(struct nct6775_sio_data *sio_data)
    -{
    -}
    -
    -static void superio_outb(struct nct6775_sio_data *sio_data, int reg, int val)
    -{
    - int ioreg = sio_data->sioreg;
    -
    - outb(reg, ioreg);
    - outb(val, ioreg + 1);
    -}
    -
    -static int superio_inb(struct nct6775_sio_data *sio_data, int reg)
    -{
    - int ioreg = sio_data->sioreg;
    -
    - outb(reg, ioreg);
    - return inb(ioreg + 1);
    -}
    -
    -static void superio_select(struct nct6775_sio_data *sio_data, int ld)
    -{
    - int ioreg = sio_data->sioreg;
    -
    - outb(SIO_REG_LDSEL, ioreg);
    - outb(ld, ioreg + 1);
    -}
    -
    -static int superio_enter(struct nct6775_sio_data *sio_data)
    -{
    - int ioreg = sio_data->sioreg;
    -
    - /*
    - * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
    - */
    - if (!request_muxed_region(ioreg, 2, DRVNAME))
    - return -EBUSY;
    -
    - outb(0x87, ioreg);
    - outb(0x87, ioreg);
    -
    - return 0;
    -}
    -
    -static void superio_exit(struct nct6775_sio_data *sio_data)
    -{
    - int ioreg = sio_data->sioreg;
    -
    - outb(0xaa, ioreg);
    - outb(0x02, ioreg);
    - outb(0x02, ioreg + 1);
    - release_region(ioreg, 2);
    -}
    -
    -/*
    - * ISA constants
    - */
    -
    -#define IOREGION_ALIGNMENT (~7)
    -#define IOREGION_OFFSET 5
    -#define IOREGION_LENGTH 2
    -#define ADDR_REG_OFFSET 0
    -#define DATA_REG_OFFSET 1
    -
    -#define NCT6775_REG_BANK 0x4E
    -#define NCT6775_REG_CONFIG 0x40
    -#define NCT6775_PORT_CHIPID 0x58
    -
    -/*
    - * Not currently used:
    - * REG_MAN_ID has the value 0x5ca3 for all supported chips.
    - * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
    - * REG_MAN_ID is at port 0x4f
    - * REG_CHIP_ID is at port 0x58
    - */
    -
    -#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
    -#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
    -#define NUM_TSI_TEMP 8 /* Max number of TSI temp register pairs */
    -
    -#define NUM_REG_ALARM 7 /* Max number of alarm registers */
    -#define NUM_REG_BEEP 5 /* Max number of beep registers */
    -
    -#define NUM_FAN 7
    -
    /* Common and NCT6775 specific data */

    /* Voltage min/max registers for nr=7..14 are in bank 5 */
    @@ -334,11 +93,6 @@ static const u16 NCT6775_REG_IN[] = {
    #define NCT6775_REG_DIODE 0x5E
    #define NCT6775_DIODE_MASK 0x02

    -#define NCT6775_REG_FANDIV1 0x506
    -#define NCT6775_REG_FANDIV2 0x507
    -
    -#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
    -
    static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B };

    /* 0..15 voltages, 16..23 fans, 24..29 temperatures, 30..31 intrusion */
    @@ -352,10 +106,6 @@ static const s8 NCT6775_ALARM_BITS[] = {
    4, 5, 13, -1, -1, -1, /* temp1..temp6 */
    12, -1 }; /* intrusion0, intrusion1 */

    -#define FAN_ALARM_BASE 16
    -#define TEMP_ALARM_BASE 24
    -#define INTRUSION_ALARM_BASE 30
    -
    static const u16 NCT6775_REG_BEEP[NUM_REG_BEEP] = { 0x56, 0x57, 0x453, 0x4e };

    /*
    @@ -371,11 +121,6 @@ static const s8 NCT6775_BEEP_BITS[] = {
    4, 5, 13, -1, -1, -1, /* temp1..temp6 */
    12, -1 }; /* intrusion0, intrusion1 */

    -#define BEEP_ENABLE_BASE 15
    -
    -static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
    -static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
    -
    /* DC or PWM output fan configuration */
    static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 };
    static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 };
    @@ -691,8 +436,6 @@ static const u16 NCT6779_REG_TEMP_CRIT[32] = {

    /* NCT6791 specific data */

    -#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
    -
    static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[NUM_FAN] = { 0, 0x239 };
    static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[NUM_FAN] = { 0, 0x23a };
    static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[NUM_FAN] = { 0, 0x23b };
    @@ -1192,165 +935,6 @@ static inline unsigned int tsi_temp_from_reg(unsigned int reg)
    * Data structures and manipulation thereof
    */

    -struct nct6775_data {
    - int addr; /* IO base of hw monitor block */
    - struct nct6775_sio_data *sio_data;
    - enum kinds kind;
    - const char *name;
    -
    - const struct attribute_group *groups[7];
    - u8 num_groups;
    -
    - u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
    - * 3=temp_crit, 4=temp_lcrit
    - */
    - u8 temp_src[NUM_TEMP];
    - u16 reg_temp_config[NUM_TEMP];
    - const char * const *temp_label;
    - u32 temp_mask;
    - u32 virt_temp_mask;
    -
    - u16 REG_CONFIG;
    - u16 REG_VBAT;
    - u16 REG_DIODE;
    - u8 DIODE_MASK;
    -
    - const s8 *ALARM_BITS;
    - const s8 *BEEP_BITS;
    -
    - const u16 *REG_VIN;
    - const u16 *REG_IN_MINMAX[2];
    -
    - const u16 *REG_TARGET;
    - const u16 *REG_FAN;
    - const u16 *REG_FAN_MODE;
    - const u16 *REG_FAN_MIN;
    - const u16 *REG_FAN_PULSES;
    - const u16 *FAN_PULSE_SHIFT;
    - const u16 *REG_FAN_TIME[3];
    -
    - const u16 *REG_TOLERANCE_H;
    -
    - const u8 *REG_PWM_MODE;
    - const u8 *PWM_MODE_MASK;
    -
    - const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
    - * [3]=pwm_max, [4]=pwm_step,
    - * [5]=weight_duty_step, [6]=weight_duty_base
    - */
    - const u16 *REG_PWM_READ;
    -
    - const u16 *REG_CRITICAL_PWM_ENABLE;
    - u8 CRITICAL_PWM_ENABLE_MASK;
    - const u16 *REG_CRITICAL_PWM;
    -
    - const u16 *REG_AUTO_TEMP;
    - const u16 *REG_AUTO_PWM;
    -
    - const u16 *REG_CRITICAL_TEMP;
    - const u16 *REG_CRITICAL_TEMP_TOLERANCE;
    -
    - const u16 *REG_TEMP_SOURCE; /* temp register sources */
    - const u16 *REG_TEMP_SEL;
    - const u16 *REG_WEIGHT_TEMP_SEL;
    - const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
    -
    - const u16 *REG_TEMP_OFFSET;
    -
    - const u16 *REG_ALARM;
    - const u16 *REG_BEEP;
    -
    - const u16 *REG_TSI_TEMP;
    -
    - unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
    - unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
    -
    - struct mutex update_lock;
    - bool valid; /* true if following fields are valid */
    - unsigned long last_updated; /* In jiffies */
    -
    - /* Register values */
    - u8 bank; /* current register bank */
    - u8 in_num; /* number of in inputs we have */
    - u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
    - unsigned int rpm[NUM_FAN];
    - u16 fan_min[NUM_FAN];
    - u8 fan_pulses[NUM_FAN];
    - u8 fan_div[NUM_FAN];
    - u8 has_pwm;
    - u8 has_fan; /* some fan inputs can be disabled */
    - u8 has_fan_min; /* some fans don't have min register */
    - bool has_fan_div;
    -
    - u8 num_temp_alarms; /* 2, 3, or 6 */
    - u8 num_temp_beeps; /* 2, 3, or 6 */
    - u8 temp_fixed_num; /* 3 or 6 */
    - u8 temp_type[NUM_TEMP_FIXED];
    - s8 temp_offset[NUM_TEMP_FIXED];
    - s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
    - * 3=temp_crit, 4=temp_lcrit */
    - s16 tsi_temp[NUM_TSI_TEMP];
    - u64 alarms;
    - u64 beeps;
    -
    - u8 pwm_num; /* number of pwm */
    - u8 pwm_mode[NUM_FAN]; /* 0->DC variable voltage,
    - * 1->PWM variable duty cycle
    - */
    - enum pwm_enable pwm_enable[NUM_FAN];
    - /* 0->off
    - * 1->manual
    - * 2->thermal cruise mode (also called SmartFan I)
    - * 3->fan speed cruise mode
    - * 4->SmartFan III
    - * 5->enhanced variable thermal cruise (SmartFan IV)
    - */
    - u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
    - * [3]=pwm_max, [4]=pwm_step,
    - * [5]=weight_duty_step, [6]=weight_duty_base
    - */
    -
    - u8 target_temp[NUM_FAN];
    - u8 target_temp_mask;
    - u32 target_speed[NUM_FAN];
    - u32 target_speed_tolerance[NUM_FAN];
    - u8 speed_tolerance_limit;
    -
    - u8 temp_tolerance[2][NUM_FAN];
    - u8 tolerance_mask;
    -
    - u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
    -
    - /* Automatic fan speed control registers */
    - int auto_pwm_num;
    - u8 auto_pwm[NUM_FAN][7];
    - u8 auto_temp[NUM_FAN][7];
    - u8 pwm_temp_sel[NUM_FAN];
    - u8 pwm_weight_temp_sel[NUM_FAN];
    - u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
    - * 2->temp_base
    - */
    -
    - u8 vid;
    - u8 vrm;
    -
    - bool have_vid;
    -
    - u16 have_temp;
    - u16 have_temp_fixed;
    - u16 have_tsi_temp;
    - u16 have_in;
    -
    - /* Remember extra register values over suspend/resume */
    - u8 vbat;
    - u8 fandiv1;
    - u8 fandiv2;
    - u8 sio_reg_enable;
    -
    - struct regmap *regmap;
    - bool read_only;
    -};
    -
    struct sensor_device_template {
    struct device_attribute dev_attr;
    union {
    @@ -1406,21 +990,6 @@ struct sensor_template_group {
    int base;
    };

    -static inline umode_t nct6775_attr_mode(struct nct6775_data *data, struct attribute *attr)
    -{
    - return data->read_only ? (attr->mode & ~0222) : attr->mode;
    -}
    -
    -static int nct6775_add_attr_group(struct nct6775_data *data, const struct attribute_group *group)
    -{
    - /* Need to leave a NULL terminator at the end of data->groups */
    - if (data->num_groups == ARRAY_SIZE(data->groups) - 1)
    - return -ENOBUFS;
    -
    - data->groups[data->num_groups++] = group;
    - return 0;
    -}
    -
    static int nct6775_add_template_attr_group(struct device *dev, struct nct6775_data *data,
    const struct sensor_template_group *tg, int repeat)
    {
    @@ -1495,7 +1064,7 @@ static int nct6775_add_template_attr_group(struct device *dev, struct nct6775_da
    return nct6775_add_attr_group(data, group);
    }

    -static bool is_word_sized(struct nct6775_data *data, u16 reg)
    +bool nct6775_reg_is_word_sized(struct nct6775_data *data, u16 reg)
    {
    switch (data->kind) {
    case nct6106:
    @@ -1552,122 +1121,7 @@ static bool is_word_sized(struct nct6775_data *data, u16 reg)
    }
    return false;
    }
    -
    -static inline void nct6775_wmi_set_bank(struct nct6775_data *data, u16 reg)
    -{
    - u8 bank = reg >> 8;
    -
    - data->bank = bank;
    -}
    -
    -static int nct6775_wmi_reg_read(void *ctx, unsigned int reg, unsigned int *val)
    -{
    - struct nct6775_data *data = ctx;
    - int err, word_sized = is_word_sized(data, reg);
    - u8 tmp = 0;
    - u16 res;
    -
    - nct6775_wmi_set_bank(data, reg);
    -
    - err = nct6775_asuswmi_read(data->bank, reg & 0xff, &tmp);
    - if (err)
    - return err;
    -
    - res = tmp;
    - if (word_sized) {
    - err = nct6775_asuswmi_read(data->bank, (reg & 0xff) + 1, &tmp);
    - if (err)
    - return err;
    -
    - res = (res << 8) + tmp;
    - }
    - *val = res;
    - return 0;
    -}
    -
    -static inline int nct6775_read_value(struct nct6775_data *data, u16 reg, u16 *value)
    -{
    - unsigned int tmp;
    - int ret = regmap_read(data->regmap, reg, &tmp);
    -
    - if (!ret)
    - *value = tmp;
    - return ret;
    -}
    -
    -static int nct6775_wmi_reg_write(void *ctx, unsigned int reg, unsigned int value)
    -{
    - struct nct6775_data *data = ctx;
    - int res, word_sized = is_word_sized(data, reg);
    -
    - nct6775_wmi_set_bank(data, reg);
    -
    - if (word_sized) {
    - res = nct6775_asuswmi_write(data->bank, reg & 0xff, value >> 8);
    - if (res)
    - return res;
    -
    - res = nct6775_asuswmi_write(data->bank, (reg & 0xff) + 1, value);
    - } else {
    - res = nct6775_asuswmi_write(data->bank, reg & 0xff, value);
    - }
    -
    - return res;
    -}
    -
    -static inline int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
    -{
    - return regmap_write(data->regmap, reg, value);
    -}
    -
    -/*
    - * On older chips, only registers 0x50-0x5f are banked.
    - * On more recent chips, all registers are banked.
    - * Assume that is the case and set the bank number for each access.
    - * Cache the bank number so it only needs to be set if it changes.
    - */
    -static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
    -{
    - u8 bank = reg >> 8;
    -
    - if (data->bank != bank) {
    - outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
    - outb_p(bank, data->addr + DATA_REG_OFFSET);
    - data->bank = bank;
    - }
    -}
    -
    -static int nct6775_reg_read(void *ctx, unsigned int reg, unsigned int *val)
    -{
    - struct nct6775_data *data = ctx;
    - int word_sized = is_word_sized(data, reg);
    -
    - nct6775_set_bank(data, reg);
    - outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
    - *val = inb_p(data->addr + DATA_REG_OFFSET);
    - if (word_sized) {
    - outb_p((reg & 0xff) + 1,
    - data->addr + ADDR_REG_OFFSET);
    - *val = (*val << 8) + inb_p(data->addr + DATA_REG_OFFSET);
    - }
    - return 0;
    -}
    -
    -static int nct6775_reg_write(void *ctx, unsigned int reg, unsigned int value)
    -{
    - struct nct6775_data *data = ctx;
    - int word_sized = is_word_sized(data, reg);
    -
    - nct6775_set_bank(data, reg);
    - outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
    - if (word_sized) {
    - outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
    - outb_p((reg & 0xff) + 1,
    - data->addr + ADDR_REG_OFFSET);
    - }
    - outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
    - return 0;
    -}
    +EXPORT_SYMBOL_GPL(nct6775_reg_is_word_sized);

    /* We left-align 8-bit temperature values to make the code simpler */
    static int nct6775_read_temp(struct nct6775_data *data, u16 reg, u16 *val)
    @@ -1678,19 +1132,12 @@ static int nct6775_read_temp(struct nct6775_data *data, u16 reg, u16 *val)
    if (err)
    return err;

    - if (!is_word_sized(data, reg))
    + if (!nct6775_reg_is_word_sized(data, reg))
    *val <<= 8;

    return 0;
    }

    -static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
    -{
    - if (!is_word_sized(data, reg))
    - value >>= 8;
    - return nct6775_write_value(data, reg, value);
    -}
    -
    /* This function assumes that the caller holds data->update_lock */
    static int nct6775_write_fan_div(struct nct6775_data *data, int nr)
    {
    @@ -2207,8 +1654,8 @@ store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf,
    return err ? : count;
    }

    -static ssize_t
    -show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
    +ssize_t
    +nct6775_show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
    {
    struct nct6775_data *data = nct6775_update_device(dev);
    struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
    @@ -2221,6 +1668,7 @@ show_alarm(struct device *dev, struct device_attribute *attr, char *buf)
    return sprintf(buf, "%u\n",
    (unsigned int)((data->alarms >> nr) & 0x01));
    }
    +EXPORT_SYMBOL_GPL(nct6775_show_alarm);

    static int find_temp_source(struct nct6775_data *data, int index, int count)
    {
    @@ -2263,8 +1711,8 @@ show_temp_alarm(struct device *dev, struct device_attribute *attr, char *buf)
    return sprintf(buf, "%u\n", alarm);
    }

    -static ssize_t
    -show_beep(struct device *dev, struct device_attribute *attr, char *buf)
    +ssize_t
    +nct6775_show_beep(struct device *dev, struct device_attribute *attr, char *buf)
    {
    struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
    struct nct6775_data *data = nct6775_update_device(dev);
    @@ -2278,10 +1726,10 @@ show_beep(struct device *dev, struct device_attribute *attr, char *buf)
    return sprintf(buf, "%u\n",
    (unsigned int)((data->beeps >> nr) & 0x01));
    }
    +EXPORT_SYMBOL_GPL(nct6775_show_beep);

    -static ssize_t
    -store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
    - size_t count)
    +ssize_t
    +nct6775_store_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
    {
    struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
    struct nct6775_data *data = dev_get_drvdata(dev);
    @@ -2306,6 +1754,7 @@ store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
    mutex_unlock(&data->update_lock);
    return err ? : count;
    }
    +EXPORT_SYMBOL_GPL(nct6775_store_beep);

    static ssize_t
    show_temp_beep(struct device *dev, struct device_attribute *attr, char *buf)
    @@ -2381,9 +1830,8 @@ static umode_t nct6775_in_is_visible(struct kobject *kobj,
    }

    SENSOR_TEMPLATE_2(in_input, "in%d_input", S_IRUGO, show_in_reg, NULL, 0, 0);
    -SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, show_alarm, NULL, 0);
    -SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, show_beep, store_beep,
    - 0);
    +SENSOR_TEMPLATE(in_alarm, "in%d_alarm", S_IRUGO, nct6775_show_alarm, NULL, 0);
    +SENSOR_TEMPLATE(in_beep, "in%d_beep", S_IWUSR | S_IRUGO, nct6775_show_beep, nct6775_store_beep, 0);
    SENSOR_TEMPLATE_2(in_min, "in%d_min", S_IWUSR | S_IRUGO, show_in_reg,
    store_in_reg, 0, 1);
    SENSOR_TEMPLATE_2(in_max, "in%d_max", S_IWUSR | S_IRUGO, show_in_reg,
    @@ -2617,10 +2065,10 @@ static umode_t nct6775_fan_is_visible(struct kobject *kobj,
    }

    SENSOR_TEMPLATE(fan_input, "fan%d_input", S_IRUGO, show_fan, NULL, 0);
    -SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, show_alarm, NULL,
    +SENSOR_TEMPLATE(fan_alarm, "fan%d_alarm", S_IRUGO, nct6775_show_alarm, NULL,
    FAN_ALARM_BASE);
    -SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, show_beep,
    - store_beep, FAN_ALARM_BASE);
    +SENSOR_TEMPLATE(fan_beep, "fan%d_beep", S_IWUSR | S_IRUGO, nct6775_show_beep,
    + nct6775_store_beep, FAN_ALARM_BASE);
    SENSOR_TEMPLATE(fan_pulses, "fan%d_pulses", S_IWUSR | S_IRUGO, show_fan_pulses,
    store_fan_pulses, 0);
    SENSOR_TEMPLATE(fan_min, "fan%d_min", S_IWUSR | S_IRUGO, show_fan_min,
    @@ -3884,113 +3332,6 @@ static const struct sensor_template_group nct6775_pwm_template_group = {
    .base = 1,
    };

    -static ssize_t
    -cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
    -{
    - struct nct6775_data *data = dev_get_drvdata(dev);
    -
    - return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
    -}
    -
    -static DEVICE_ATTR_RO(cpu0_vid);
    -
    -/* Case open detection */
    -
    -static ssize_t
    -clear_caseopen(struct device *dev, struct device_attribute *attr,
    - const char *buf, size_t count)
    -{
    - struct nct6775_data *data = dev_get_drvdata(dev);
    - struct nct6775_sio_data *sio_data = data->sio_data;
    - int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
    - unsigned long val;
    - u8 reg;
    - int ret;
    -
    - if (kstrtoul(buf, 10, &val) || val != 0)
    - return -EINVAL;
    -
    - mutex_lock(&data->update_lock);
    -
    - /*
    - * Use CR registers to clear caseopen status.
    - * The CR registers are the same for all chips, and not all chips
    - * support clearing the caseopen status through "regular" registers.
    - */
    - ret = sio_data->sio_enter(sio_data);
    - if (ret) {
    - count = ret;
    - goto error;
    - }
    -
    - sio_data->sio_select(sio_data, NCT6775_LD_ACPI);
    - reg = sio_data->sio_inb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
    - reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
    - sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
    - reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
    - sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
    - sio_data->sio_exit(sio_data);
    -
    - data->valid = false; /* Force cache refresh */
    -error:
    - mutex_unlock(&data->update_lock);
    - return count;
    -}
    -
    -static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm,
    - clear_caseopen, INTRUSION_ALARM_BASE);
    -static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm,
    - clear_caseopen, INTRUSION_ALARM_BASE + 1);
    -static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, show_beep,
    - store_beep, INTRUSION_ALARM_BASE);
    -static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, show_beep,
    - store_beep, INTRUSION_ALARM_BASE + 1);
    -static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, show_beep,
    - store_beep, BEEP_ENABLE_BASE);
    -
    -static umode_t nct6775_other_is_visible(struct kobject *kobj,
    - struct attribute *attr, int index)
    -{
    - struct device *dev = kobj_to_dev(kobj);
    - struct nct6775_data *data = dev_get_drvdata(dev);
    -
    - if (index == 0 && !data->have_vid)
    - return 0;
    -
    - if (index == 1 || index == 2) {
    - if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
    - return 0;
    - }
    -
    - if (index == 3 || index == 4) {
    - if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
    - return 0;
    - }
    -
    - return nct6775_attr_mode(data, attr);
    -}
    -
    -/*
    - * nct6775_other_is_visible uses the index into the following array
    - * to determine if attributes should be created or not.
    - * Any change in order or content must be matched.
    - */
    -static struct attribute *nct6775_attributes_other[] = {
    - &dev_attr_cpu0_vid.attr, /* 0 */
    - &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
    - &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
    - &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
    - &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
    - &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
    -
    - NULL
    -};
    -
    -static const struct attribute_group nct6775_group_other = {
    - .attrs = nct6775_attributes_other,
    - .is_visible = nct6775_other_is_visible,
    -};
    -
    static inline int nct6775_init_device(struct nct6775_data *data)
    {
    int i, err;
    @@ -4051,227 +3392,6 @@ static inline int nct6775_init_device(struct nct6775_data *data)
    return 0;
    }

    -static void
    -nct6775_check_fan_inputs(struct nct6775_data *data, struct nct6775_sio_data *sio_data)
    -{
    - bool fan3pin = false, fan4pin = false, fan4min = false;
    - bool fan5pin = false, fan6pin = false, fan7pin = false;
    - bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
    - bool pwm6pin = false, pwm7pin = false;
    -
    - /* Store SIO_REG_ENABLE for use during resume */
    - sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    - data->sio_reg_enable = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    -
    - /* fan4 and fan5 share some pins with the GPIO and serial flash */
    - if (data->kind == nct6775) {
    - int cr2c = sio_data->sio_inb(sio_data, 0x2c);
    -
    - fan3pin = cr2c & BIT(6);
    - pwm3pin = cr2c & BIT(7);
    -
    - /* On NCT6775, fan4 shares pins with the fdc interface */
    - fan4pin = !(sio_data->sio_inb(sio_data, 0x2A) & 0x80);
    - } else if (data->kind == nct6776) {
    - bool gpok = sio_data->sio_inb(sio_data, 0x27) & 0x80;
    - const char *board_vendor, *board_name;
    -
    - board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
    - board_name = dmi_get_system_info(DMI_BOARD_NAME);
    -
    - if (board_name && board_vendor &&
    - !strcmp(board_vendor, "ASRock")) {
    - /*
    - * Auxiliary fan monitoring is not enabled on ASRock
    - * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
    - * Observed with BIOS version 2.00.
    - */
    - if (!strcmp(board_name, "Z77 Pro4-M")) {
    - if ((data->sio_reg_enable & 0xe0) != 0xe0) {
    - data->sio_reg_enable |= 0xe0;
    - sio_data->sio_outb(sio_data, SIO_REG_ENABLE,
    - data->sio_reg_enable);
    - }
    - }
    - }
    -
    - if (data->sio_reg_enable & 0x80)
    - fan3pin = gpok;
    - else
    - fan3pin = !(sio_data->sio_inb(sio_data, 0x24) & 0x40);
    -
    - if (data->sio_reg_enable & 0x40)
    - fan4pin = gpok;
    - else
    - fan4pin = sio_data->sio_inb(sio_data, 0x1C) & 0x01;
    -
    - if (data->sio_reg_enable & 0x20)
    - fan5pin = gpok;
    - else
    - fan5pin = sio_data->sio_inb(sio_data, 0x1C) & 0x02;
    -
    - fan4min = fan4pin;
    - pwm3pin = fan3pin;
    - } else if (data->kind == nct6106) {
    - int cr24 = sio_data->sio_inb(sio_data, 0x24);
    -
    - fan3pin = !(cr24 & 0x80);
    - pwm3pin = cr24 & 0x08;
    - } else if (data->kind == nct6116) {
    - int cr1a = sio_data->sio_inb(sio_data, 0x1a);
    - int cr1b = sio_data->sio_inb(sio_data, 0x1b);
    - int cr24 = sio_data->sio_inb(sio_data, 0x24);
    - int cr2a = sio_data->sio_inb(sio_data, 0x2a);
    - int cr2b = sio_data->sio_inb(sio_data, 0x2b);
    - int cr2f = sio_data->sio_inb(sio_data, 0x2f);
    -
    - fan3pin = !(cr2b & 0x10);
    - fan4pin = (cr2b & 0x80) || // pin 1(2)
    - (!(cr2f & 0x10) && (cr1a & 0x04)); // pin 65(66)
    - fan5pin = (cr2b & 0x80) || // pin 126(127)
    - (!(cr1b & 0x03) && (cr2a & 0x02)); // pin 94(96)
    -
    - pwm3pin = fan3pin && (cr24 & 0x08);
    - pwm4pin = fan4pin;
    - pwm5pin = fan5pin;
    - } else {
    - /*
    - * NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D,
    - * NCT6797D, NCT6798D
    - */
    - int cr1a = sio_data->sio_inb(sio_data, 0x1a);
    - int cr1b = sio_data->sio_inb(sio_data, 0x1b);
    - int cr1c = sio_data->sio_inb(sio_data, 0x1c);
    - int cr1d = sio_data->sio_inb(sio_data, 0x1d);
    - int cr2a = sio_data->sio_inb(sio_data, 0x2a);
    - int cr2b = sio_data->sio_inb(sio_data, 0x2b);
    - int cr2d = sio_data->sio_inb(sio_data, 0x2d);
    - int cr2f = sio_data->sio_inb(sio_data, 0x2f);
    - bool dsw_en = cr2f & BIT(3);
    - bool ddr4_en = cr2f & BIT(4);
    - int cre0;
    - int creb;
    - int cred;
    -
    - sio_data->sio_select(sio_data, NCT6775_LD_12);
    - cre0 = sio_data->sio_inb(sio_data, 0xe0);
    - creb = sio_data->sio_inb(sio_data, 0xeb);
    - cred = sio_data->sio_inb(sio_data, 0xed);
    -
    - fan3pin = !(cr1c & BIT(5));
    - fan4pin = !(cr1c & BIT(6));
    - fan5pin = !(cr1c & BIT(7));
    -
    - pwm3pin = !(cr1c & BIT(0));
    - pwm4pin = !(cr1c & BIT(1));
    - pwm5pin = !(cr1c & BIT(2));
    -
    - switch (data->kind) {
    - case nct6791:
    - fan6pin = cr2d & BIT(1);
    - pwm6pin = cr2d & BIT(0);
    - break;
    - case nct6792:
    - fan6pin = !dsw_en && (cr2d & BIT(1));
    - pwm6pin = !dsw_en && (cr2d & BIT(0));
    - break;
    - case nct6793:
    - fan5pin |= cr1b & BIT(5);
    - fan5pin |= creb & BIT(5);
    -
    - fan6pin = !dsw_en && (cr2d & BIT(1));
    - fan6pin |= creb & BIT(3);
    -
    - pwm5pin |= cr2d & BIT(7);
    - pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    -
    - pwm6pin = !dsw_en && (cr2d & BIT(0));
    - pwm6pin |= creb & BIT(2);
    - break;
    - case nct6795:
    - fan5pin |= cr1b & BIT(5);
    - fan5pin |= creb & BIT(5);
    -
    - fan6pin = (cr2a & BIT(4)) &&
    - (!dsw_en || (cred & BIT(4)));
    - fan6pin |= creb & BIT(3);
    -
    - pwm5pin |= cr2d & BIT(7);
    - pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    -
    - pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
    - pwm6pin |= creb & BIT(2);
    - break;
    - case nct6796:
    - fan5pin |= cr1b & BIT(5);
    - fan5pin |= (cre0 & BIT(3)) && !(cr1b & BIT(0));
    - fan5pin |= creb & BIT(5);
    -
    - fan6pin = (cr2a & BIT(4)) &&
    - (!dsw_en || (cred & BIT(4)));
    - fan6pin |= creb & BIT(3);
    -
    - fan7pin = !(cr2b & BIT(2));
    -
    - pwm5pin |= cr2d & BIT(7);
    - pwm5pin |= (cre0 & BIT(4)) && !(cr1b & BIT(0));
    - pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    -
    - pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
    - pwm6pin |= creb & BIT(2);
    -
    - pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
    - break;
    - case nct6797:
    - fan5pin |= !ddr4_en && (cr1b & BIT(5));
    - fan5pin |= creb & BIT(5);
    -
    - fan6pin = cr2a & BIT(4);
    - fan6pin |= creb & BIT(3);
    -
    - fan7pin = cr1a & BIT(1);
    -
    - pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    - pwm5pin |= !ddr4_en && (cr2d & BIT(7));
    -
    - pwm6pin = creb & BIT(2);
    - pwm6pin |= cred & BIT(2);
    -
    - pwm7pin = cr1d & BIT(4);
    - break;
    - case nct6798:
    - fan6pin = !(cr1b & BIT(0)) && (cre0 & BIT(3));
    - fan6pin |= cr2a & BIT(4);
    - fan6pin |= creb & BIT(5);
    -
    - fan7pin = cr1b & BIT(5);
    - fan7pin |= !(cr2b & BIT(2));
    - fan7pin |= creb & BIT(3);
    -
    - pwm6pin = !(cr1b & BIT(0)) && (cre0 & BIT(4));
    - pwm6pin |= !(cred & BIT(2)) && (cr2a & BIT(3));
    - pwm6pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    -
    - pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
    - pwm7pin |= cr2d & BIT(7);
    - pwm7pin |= creb & BIT(2);
    - break;
    - default: /* NCT6779D */
    - break;
    - }
    -
    - fan4min = fan4pin;
    - }
    -
    - /* fan 1 and 2 (0x03) are always present */
    - data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
    - (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
    - data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
    - (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
    - data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
    - (pwm5pin << 4) | (pwm6pin << 5) | (pwm7pin << 6);
    -}
    -
    static int add_temp_sensors(struct nct6775_data *data, const u16 *regp,
    int *available, int *mask)
    {
    @@ -4303,26 +3423,9 @@ static int add_temp_sensors(struct nct6775_data *data, const u16 *regp,
    return 0;
    }

    -static const struct regmap_config nct6775_regmap_config = {
    - .reg_bits = 16,
    - .val_bits = 16,
    - .reg_read = nct6775_reg_read,
    - .reg_write = nct6775_reg_write,
    -};
    -
    -static const struct regmap_config nct6775_wmi_regmap_config = {
    - .reg_bits = 16,
    - .val_bits = 16,
    - .reg_read = nct6775_wmi_reg_read,
    - .reg_write = nct6775_wmi_reg_write,
    -};
    -
    -static int nct6775_probe(struct platform_device *pdev)
    +int nct6775_probe(struct device *dev, struct nct6775_data *data,
    + const struct regmap_config *regmapcfg)
    {
    - struct device *dev = &pdev->dev;
    - struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
    - struct nct6775_data *data;
    - struct resource *res;
    int i, s, err = 0;
    int mask, available;
    u16 src;
    @@ -4330,32 +3433,8 @@ static int nct6775_probe(struct platform_device *pdev)
    const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
    const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
    int num_reg_temp, num_reg_temp_mon, num_reg_tsi_temp;
    - u8 cr2a;
    struct device *hwmon_dev;
    struct sensor_template_group tsi_temp_tg;
    - const struct regmap_config *regmapcfg;
    -
    - if (sio_data->access == access_direct) {
    - res = platform_get_resource(pdev, IORESOURCE_IO, 0);
    - if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
    - DRVNAME))
    - return -EBUSY;
    - }
    -
    - data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data),
    - GFP_KERNEL);
    - if (!data)
    - return -ENOMEM;
    -
    - data->kind = sio_data->kind;
    - data->sio_data = sio_data;
    -
    - if (sio_data->access == access_direct) {
    - data->addr = res->start;
    - regmapcfg = &nct6775_regmap_config;
    - } else {
    - regmapcfg = &nct6775_wmi_regmap_config;
    - }

    data->regmap = devm_regmap_init(dev, NULL, data, regmapcfg);
    if (IS_ERR(data->regmap))
    @@ -4364,7 +3443,6 @@ static int nct6775_probe(struct platform_device *pdev)
    mutex_init(&data->update_lock);
    data->name = nct6775_device_names[data->kind];
    data->bank = 0xff; /* Force initial bank selection */
    - platform_set_drvdata(pdev, data);

    switch (data->kind) {
    case nct6106:
    @@ -5099,79 +4177,12 @@ static int nct6775_probe(struct platform_device *pdev)
    if (err)
    return err;

    - err = sio_data->sio_enter(sio_data);
    - if (err)
    - return err;
    -
    - cr2a = sio_data->sio_inb(sio_data, 0x2a);
    - switch (data->kind) {
    - case nct6775:
    - data->have_vid = (cr2a & 0x40);
    - break;
    - case nct6776:
    - data->have_vid = (cr2a & 0x60) == 0x40;
    - break;
    - case nct6106:
    - case nct6116:
    - case nct6779:
    - case nct6791:
    - case nct6792:
    - case nct6793:
    - case nct6795:
    - case nct6796:
    - case nct6797:
    - case nct6798:
    - break;
    - }
    -
    - /*
    - * Read VID value
    - * We can get the VID input values directly at logical device D 0xe3.
    - */
    - if (data->have_vid) {
    - sio_data->sio_select(sio_data, NCT6775_LD_VID);
    - data->vid = sio_data->sio_inb(sio_data, 0xe3);
    - data->vrm = vid_which_vrm();
    - }
    -
    - if (fan_debounce) {
    - u8 tmp;
    -
    - sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    - tmp = sio_data->sio_inb(sio_data,
    - NCT6775_REG_CR_FAN_DEBOUNCE);
    - switch (data->kind) {
    - case nct6106:
    - case nct6116:
    - tmp |= 0xe0;
    - break;
    - case nct6775:
    - tmp |= 0x1e;
    - break;
    - case nct6776:
    - case nct6779:
    - tmp |= 0x3e;
    - break;
    - case nct6791:
    - case nct6792:
    - case nct6793:
    - case nct6795:
    - case nct6796:
    - case nct6797:
    - case nct6798:
    - tmp |= 0x7e;
    - break;
    - }
    - sio_data->sio_outb(sio_data, NCT6775_REG_CR_FAN_DEBOUNCE,
    - tmp);
    - dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n",
    - data->name);
    + if (data->driver_init) {
    + err = data->driver_init(data);
    + if (err)
    + return err;
    }

    - nct6775_check_fan_inputs(data, sio_data);
    -
    - sio_data->sio_exit(sio_data);
    -
    /* Read fan clock dividers immediately */
    err = nct6775_init_fan_common(dev, data);
    if (err)
    @@ -5208,430 +4219,12 @@ static int nct6775_probe(struct platform_device *pdev)
    return err;
    }

    - err = nct6775_add_attr_group(data, &nct6775_group_other);
    - if (err)
    - return err;
    -
    hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
    data, data->groups);
    return PTR_ERR_OR_ZERO(hwmon_dev);
    }
    -
    -static void nct6791_enable_io_mapping(struct nct6775_sio_data *sio_data)
    -{
    - int val;
    -
    - val = sio_data->sio_inb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
    - if (val & 0x10) {
    - pr_info("Enabling hardware monitor logical device mappings.\n");
    - sio_data->sio_outb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
    - val & ~0x10);
    - }
    -}
    -
    -static int __maybe_unused nct6775_suspend(struct device *dev)
    -{
    - int err;
    - u16 tmp;
    - struct nct6775_data *data = nct6775_update_device(dev);
    -
    - if (IS_ERR(data))
    - return PTR_ERR(data);
    -
    - mutex_lock(&data->update_lock);
    - err = nct6775_read_value(data, data->REG_VBAT, &tmp);
    - if (err)
    - goto out;
    - data->vbat = tmp;
    - if (data->kind == nct6775) {
    - err = nct6775_read_value(data, NCT6775_REG_FANDIV1, &tmp);
    - if (err)
    - goto out;
    - data->fandiv1 = tmp;
    -
    - err = nct6775_read_value(data, NCT6775_REG_FANDIV2, &tmp);
    - if (err)
    - goto out;
    - data->fandiv2 = tmp;
    - }
    -out:
    - mutex_unlock(&data->update_lock);
    -
    - return err;
    -}
    -
    -static int __maybe_unused nct6775_resume(struct device *dev)
    -{
    - struct nct6775_data *data = dev_get_drvdata(dev);
    - struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
    - int i, j, err = 0;
    - u8 reg;
    -
    - mutex_lock(&data->update_lock);
    - data->bank = 0xff; /* Force initial bank selection */
    -
    - err = sio_data->sio_enter(sio_data);
    - if (err)
    - goto abort;
    -
    - sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    - reg = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    - if (reg != data->sio_reg_enable)
    - sio_data->sio_outb(sio_data, SIO_REG_ENABLE, data->sio_reg_enable);
    -
    - if (data->kind == nct6791 || data->kind == nct6792 ||
    - data->kind == nct6793 || data->kind == nct6795 ||
    - data->kind == nct6796 || data->kind == nct6797 ||
    - data->kind == nct6798)
    - nct6791_enable_io_mapping(sio_data);
    -
    - sio_data->sio_exit(sio_data);
    -
    - /* Restore limits */
    - for (i = 0; i < data->in_num; i++) {
    - if (!(data->have_in & BIT(i)))
    - continue;
    -
    - err = nct6775_write_value(data, data->REG_IN_MINMAX[0][i], data->in[i][1]);
    - if (err)
    - goto abort;
    - err = nct6775_write_value(data, data->REG_IN_MINMAX[1][i], data->in[i][2]);
    - if (err)
    - goto abort;
    - }
    -
    - for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
    - if (!(data->has_fan_min & BIT(i)))
    - continue;
    -
    - err = nct6775_write_value(data, data->REG_FAN_MIN[i], data->fan_min[i]);
    - if (err)
    - goto abort;
    - }
    -
    - for (i = 0; i < NUM_TEMP; i++) {
    - if (!(data->have_temp & BIT(i)))
    - continue;
    -
    - for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
    - if (data->reg_temp[j][i]) {
    - err = nct6775_write_temp(data, data->reg_temp[j][i],
    - data->temp[j][i]);
    - if (err)
    - goto abort;
    - }
    - }
    -
    - /* Restore other settings */
    - err = nct6775_write_value(data, data->REG_VBAT, data->vbat);
    - if (err)
    - goto abort;
    - if (data->kind == nct6775) {
    - err = nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
    - if (err)
    - goto abort;
    - err = nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
    - }
    -
    -abort:
    - /* Force re-reading all values */
    - data->valid = false;
    - mutex_unlock(&data->update_lock);
    -
    - return err;
    -}
    -
    -static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
    -
    -static struct platform_driver nct6775_driver = {
    - .driver = {
    - .name = DRVNAME,
    - .pm = &nct6775_dev_pm_ops,
    - },
    - .probe = nct6775_probe,
    -};
    -
    -/* nct6775_find() looks for a '627 in the Super-I/O config space */
    -static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
    -{
    - u16 val;
    - int err;
    - int addr;
    -
    - sio_data->access = access_direct;
    - sio_data->sioreg = sioaddr;
    -
    - err = sio_data->sio_enter(sio_data);
    - if (err)
    - return err;
    -
    - val = (sio_data->sio_inb(sio_data, SIO_REG_DEVID) << 8) |
    - sio_data->sio_inb(sio_data, SIO_REG_DEVID + 1);
    - if (force_id && val != 0xffff)
    - val = force_id;
    -
    - switch (val & SIO_ID_MASK) {
    - case SIO_NCT6106_ID:
    - sio_data->kind = nct6106;
    - break;
    - case SIO_NCT6116_ID:
    - sio_data->kind = nct6116;
    - break;
    - case SIO_NCT6775_ID:
    - sio_data->kind = nct6775;
    - break;
    - case SIO_NCT6776_ID:
    - sio_data->kind = nct6776;
    - break;
    - case SIO_NCT6779_ID:
    - sio_data->kind = nct6779;
    - break;
    - case SIO_NCT6791_ID:
    - sio_data->kind = nct6791;
    - break;
    - case SIO_NCT6792_ID:
    - sio_data->kind = nct6792;
    - break;
    - case SIO_NCT6793_ID:
    - sio_data->kind = nct6793;
    - break;
    - case SIO_NCT6795_ID:
    - sio_data->kind = nct6795;
    - break;
    - case SIO_NCT6796_ID:
    - sio_data->kind = nct6796;
    - break;
    - case SIO_NCT6797_ID:
    - sio_data->kind = nct6797;
    - break;
    - case SIO_NCT6798_ID:
    - sio_data->kind = nct6798;
    - break;
    - default:
    - if (val != 0xffff)
    - pr_debug("unsupported chip ID: 0x%04x\n", val);
    - sio_data->sio_exit(sio_data);
    - return -ENODEV;
    - }
    -
    - /* We have a known chip, find the HWM I/O address */
    - sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    - val = (sio_data->sio_inb(sio_data, SIO_REG_ADDR) << 8)
    - | sio_data->sio_inb(sio_data, SIO_REG_ADDR + 1);
    - addr = val & IOREGION_ALIGNMENT;
    - if (addr == 0) {
    - pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
    - sio_data->sio_exit(sio_data);
    - return -ENODEV;
    - }
    -
    - /* Activate logical device if needed */
    - val = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    - if (!(val & 0x01)) {
    - pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
    - sio_data->sio_outb(sio_data, SIO_REG_ENABLE, val | 0x01);
    - }
    -
    - if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
    - sio_data->kind == nct6793 || sio_data->kind == nct6795 ||
    - sio_data->kind == nct6796 || sio_data->kind == nct6797 ||
    - sio_data->kind == nct6798)
    - nct6791_enable_io_mapping(sio_data);
    -
    - sio_data->sio_exit(sio_data);
    - pr_info("Found %s or compatible chip at %#x:%#x\n",
    - nct6775_sio_names[sio_data->kind], sioaddr, addr);
    -
    - return addr;
    -}
    -
    -/*
    - * when Super-I/O functions move to a separate file, the Super-I/O
    - * bus will manage the lifetime of the device and this module will only keep
    - * track of the nct6775 driver. But since we use platform_device_alloc(), we
    - * must keep track of the device
    - */
    -static struct platform_device *pdev[2];
    -
    -static const char * const asus_wmi_boards[] = {
    - "ProArt X570-CREATOR WIFI",
    - "Pro B550M-C",
    - "Pro WS X570-ACE",
    - "PRIME B360-PLUS",
    - "PRIME B460-PLUS",
    - "PRIME B550-PLUS",
    - "PRIME B550M-A",
    - "PRIME B550M-A (WI-FI)",
    - "PRIME X570-P",
    - "PRIME X570-PRO",
    - "ROG CROSSHAIR VIII DARK HERO",
    - "ROG CROSSHAIR VIII FORMULA",
    - "ROG CROSSHAIR VIII HERO",
    - "ROG CROSSHAIR VIII IMPACT",
    - "ROG STRIX B550-A GAMING",
    - "ROG STRIX B550-E GAMING",
    - "ROG STRIX B550-F GAMING",
    - "ROG STRIX B550-F GAMING (WI-FI)",
    - "ROG STRIX B550-F GAMING WIFI II",
    - "ROG STRIX B550-I GAMING",
    - "ROG STRIX B550-XE GAMING (WI-FI)",
    - "ROG STRIX X570-E GAMING",
    - "ROG STRIX X570-F GAMING",
    - "ROG STRIX X570-I GAMING",
    - "ROG STRIX Z390-E GAMING",
    - "ROG STRIX Z390-F GAMING",
    - "ROG STRIX Z390-H GAMING",
    - "ROG STRIX Z390-I GAMING",
    - "ROG STRIX Z490-A GAMING",
    - "ROG STRIX Z490-E GAMING",
    - "ROG STRIX Z490-F GAMING",
    - "ROG STRIX Z490-G GAMING",
    - "ROG STRIX Z490-G GAMING (WI-FI)",
    - "ROG STRIX Z490-H GAMING",
    - "ROG STRIX Z490-I GAMING",
    - "TUF GAMING B550M-PLUS",
    - "TUF GAMING B550M-PLUS (WI-FI)",
    - "TUF GAMING B550-PLUS",
    - "TUF GAMING B550-PRO",
    - "TUF GAMING X570-PLUS",
    - "TUF GAMING X570-PLUS (WI-FI)",
    - "TUF GAMING X570-PRO (WI-FI)",
    - "TUF GAMING Z490-PLUS",
    - "TUF GAMING Z490-PLUS (WI-FI)",
    -};
    -
    -static int __init sensors_nct6775_init(void)
    -{
    - int i, err;
    - bool found = false;
    - int address;
    - struct resource res;
    - struct nct6775_sio_data sio_data;
    - int sioaddr[2] = { 0x2e, 0x4e };
    - enum sensor_access access = access_direct;
    - const char *board_vendor, *board_name;
    - u8 tmp;
    -
    - err = platform_driver_register(&nct6775_driver);
    - if (err)
    - return err;
    -
    - board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
    - board_name = dmi_get_system_info(DMI_BOARD_NAME);
    -
    - if (board_name && board_vendor &&
    - !strcmp(board_vendor, "ASUSTeK COMPUTER INC.")) {
    - err = match_string(asus_wmi_boards, ARRAY_SIZE(asus_wmi_boards),
    - board_name);
    - if (err >= 0) {
    - /* if reading chip id via WMI succeeds, use WMI */
    - if (!nct6775_asuswmi_read(0, NCT6775_PORT_CHIPID, &tmp) && tmp) {
    - pr_info("Using Asus WMI to access %#x chip.\n", tmp);
    - access = access_asuswmi;
    - } else {
    - pr_err("Can't read ChipID by Asus WMI.\n");
    - }
    - }
    - }
    -
    - /*
    - * initialize sio_data->kind and sio_data->sioreg.
    - *
    - * when Super-I/O functions move to a separate file, the Super-I/O
    - * driver will probe 0x2e and 0x4e and auto-detect the presence of a
    - * nct6775 hardware monitor, and call probe()
    - */
    - for (i = 0; i < ARRAY_SIZE(pdev); i++) {
    - sio_data.sio_outb = superio_outb;
    - sio_data.sio_inb = superio_inb;
    - sio_data.sio_select = superio_select;
    - sio_data.sio_enter = superio_enter;
    - sio_data.sio_exit = superio_exit;
    -
    - address = nct6775_find(sioaddr[i], &sio_data);
    - if (address <= 0)
    - continue;
    -
    - found = true;
    -
    - sio_data.access = access;
    -
    - if (access == access_asuswmi) {
    - sio_data.sio_outb = superio_wmi_outb;
    - sio_data.sio_inb = superio_wmi_inb;
    - sio_data.sio_select = superio_wmi_select;
    - sio_data.sio_enter = superio_wmi_enter;
    - sio_data.sio_exit = superio_wmi_exit;
    - }
    -
    - pdev[i] = platform_device_alloc(DRVNAME, address);
    - if (!pdev[i]) {
    - err = -ENOMEM;
    - goto exit_device_unregister;
    - }
    -
    - err = platform_device_add_data(pdev[i], &sio_data,
    - sizeof(struct nct6775_sio_data));
    - if (err)
    - goto exit_device_put;
    -
    - if (sio_data.access == access_direct) {
    - memset(&res, 0, sizeof(res));
    - res.name = DRVNAME;
    - res.start = address + IOREGION_OFFSET;
    - res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
    - res.flags = IORESOURCE_IO;
    -
    - err = acpi_check_resource_conflict(&res);
    - if (err) {
    - platform_device_put(pdev[i]);
    - pdev[i] = NULL;
    - continue;
    - }
    -
    - err = platform_device_add_resources(pdev[i], &res, 1);
    - if (err)
    - goto exit_device_put;
    - }
    -
    - /* platform_device_add calls probe() */
    - err = platform_device_add(pdev[i]);
    - if (err)
    - goto exit_device_put;
    - }
    - if (!found) {
    - err = -ENODEV;
    - goto exit_unregister;
    - }
    -
    - return 0;
    -
    -exit_device_put:
    - platform_device_put(pdev[i]);
    -exit_device_unregister:
    - while (--i >= 0) {
    - if (pdev[i])
    - platform_device_unregister(pdev[i]);
    - }
    -exit_unregister:
    - platform_driver_unregister(&nct6775_driver);
    - return err;
    -}
    -
    -static void __exit sensors_nct6775_exit(void)
    -{
    - int i;
    -
    - for (i = 0; i < ARRAY_SIZE(pdev); i++) {
    - if (pdev[i])
    - platform_device_unregister(pdev[i]);
    - }
    - platform_driver_unregister(&nct6775_driver);
    -}
    +EXPORT_SYMBOL_GPL(nct6775_probe);

    MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
    -MODULE_DESCRIPTION("Driver for NCT6775F and compatible chips");
    +MODULE_DESCRIPTION("Core driver for NCT6775F and compatible chips");
    MODULE_LICENSE("GPL");
    -
    -module_init(sensors_nct6775_init);
    -module_exit(sensors_nct6775_exit);
    diff --git a/drivers/hwmon/nct6775-platform.c b/drivers/hwmon/nct6775-platform.c
    new file mode 100644
    index 000000000000..15d6ad376007
    --- /dev/null
    +++ b/drivers/hwmon/nct6775-platform.c
    @@ -0,0 +1,1232 @@
    +// SPDX-License-Identifier: GPL-2.0-or-later
    +/*
    + * nct6775-platform - Platform driver for the hardware monitoring
    + * functionality of Nuvoton NCT677x Super-I/O chips
    + *
    + * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net>
    + */
    +
    +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
    +
    +#include <linux/acpi.h>
    +#include <linux/dmi.h>
    +#include <linux/hwmon-sysfs.h>
    +#include <linux/hwmon-vid.h>
    +#include <linux/init.h>
    +#include <linux/io.h>
    +#include <linux/module.h>
    +#include <linux/platform_device.h>
    +#include <linux/regmap.h>
    +#include <linux/wmi.h>
    +
    +#include "nct6775.h"
    +
    +enum sensor_access { access_direct, access_asuswmi };
    +
    +static const char * const nct6775_sio_names[] __initconst = {
    + "NCT6106D",
    + "NCT6116D",
    + "NCT6775F",
    + "NCT6776D/F",
    + "NCT6779D",
    + "NCT6791D",
    + "NCT6792D",
    + "NCT6793D",
    + "NCT6795D",
    + "NCT6796D",
    + "NCT6797D",
    + "NCT6798D",
    +};
    +
    +static unsigned short force_id;
    +module_param(force_id, ushort, 0);
    +MODULE_PARM_DESC(force_id, "Override the detected device ID");
    +
    +static unsigned short fan_debounce;
    +module_param(fan_debounce, ushort, 0);
    +MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal");
    +
    +#define DRVNAME "nct6775-platform"
    +
    +#define NCT6775_PORT_CHIPID 0x58
    +
    +/*
    + * ISA constants
    + */
    +
    +#define IOREGION_ALIGNMENT (~7)
    +#define IOREGION_OFFSET 5
    +#define IOREGION_LENGTH 2
    +#define ADDR_REG_OFFSET 0
    +#define DATA_REG_OFFSET 1
    +
    +/*
    + * Super-I/O constants and functions
    + */
    +
    +#define NCT6775_LD_ACPI 0x0a
    +#define NCT6775_LD_HWM 0x0b
    +#define NCT6775_LD_VID 0x0d
    +#define NCT6775_LD_12 0x12
    +
    +#define SIO_REG_LDSEL 0x07 /* Logical device select */
    +#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */
    +#define SIO_REG_ENABLE 0x30 /* Logical device enable */
    +#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */
    +
    +#define SIO_NCT6106_ID 0xc450
    +#define SIO_NCT6116_ID 0xd280
    +#define SIO_NCT6775_ID 0xb470
    +#define SIO_NCT6776_ID 0xc330
    +#define SIO_NCT6779_ID 0xc560
    +#define SIO_NCT6791_ID 0xc800
    +#define SIO_NCT6792_ID 0xc910
    +#define SIO_NCT6793_ID 0xd120
    +#define SIO_NCT6795_ID 0xd350
    +#define SIO_NCT6796_ID 0xd420
    +#define SIO_NCT6797_ID 0xd450
    +#define SIO_NCT6798_ID 0xd428
    +#define SIO_ID_MASK 0xFFF8
    +
    +/*
    + * Control registers
    + */
    +#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0
    +
    +struct nct6775_sio_data {
    + int sioreg;
    + int ld;
    + enum kinds kind;
    + enum sensor_access access;
    +
    + /* superio_() callbacks */
    + void (*sio_outb)(struct nct6775_sio_data *sio_data, int reg, int val);
    + int (*sio_inb)(struct nct6775_sio_data *sio_data, int reg);
    + void (*sio_select)(struct nct6775_sio_data *sio_data, int ld);
    + int (*sio_enter)(struct nct6775_sio_data *sio_data);
    + void (*sio_exit)(struct nct6775_sio_data *sio_data);
    +};
    +
    +#define ASUSWMI_MONITORING_GUID "466747A0-70EC-11DE-8A39-0800200C9A66"
    +#define ASUSWMI_METHODID_RSIO 0x5253494F
    +#define ASUSWMI_METHODID_WSIO 0x5753494F
    +#define ASUSWMI_METHODID_RHWM 0x5248574D
    +#define ASUSWMI_METHODID_WHWM 0x5748574D
    +#define ASUSWMI_UNSUPPORTED_METHOD 0xFFFFFFFE
    +
    +static int nct6775_asuswmi_evaluate_method(u32 method_id, u8 bank, u8 reg, u8 val, u32 *retval)
    +{
    +#if IS_ENABLED(CONFIG_ACPI_WMI)
    + u32 args = bank | (reg << 8) | (val << 16);
    + struct acpi_buffer input = { (acpi_size) sizeof(args), &args };
    + struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
    + acpi_status status;
    + union acpi_object *obj;
    + u32 tmp = ASUSWMI_UNSUPPORTED_METHOD;
    +
    + status = wmi_evaluate_method(ASUSWMI_MONITORING_GUID, 0,
    + method_id, &input, &output);
    +
    + if (ACPI_FAILURE(status))
    + return -EIO;
    +
    + obj = output.pointer;
    + if (obj && obj->type == ACPI_TYPE_INTEGER)
    + tmp = obj->integer.value;
    +
    + if (retval)
    + *retval = tmp;
    +
    + kfree(obj);
    +
    + if (tmp == ASUSWMI_UNSUPPORTED_METHOD)
    + return -ENODEV;
    + return 0;
    +#else
    + return -EOPNOTSUPP;
    +#endif
    +}
    +
    +static inline int nct6775_asuswmi_write(u8 bank, u8 reg, u8 val)
    +{
    + return nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_WHWM, bank,
    + reg, val, NULL);
    +}
    +
    +static inline int nct6775_asuswmi_read(u8 bank, u8 reg, u8 *val)
    +{
    + u32 ret, tmp = 0;
    +
    + ret = nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_RHWM, bank,
    + reg, 0, &tmp);
    + *val = tmp;
    + return ret;
    +}
    +
    +static int superio_wmi_inb(struct nct6775_sio_data *sio_data, int reg)
    +{
    + int tmp = 0;
    +
    + nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_RSIO, sio_data->ld,
    + reg, 0, &tmp);
    + return tmp;
    +}
    +
    +static void superio_wmi_outb(struct nct6775_sio_data *sio_data, int reg, int val)
    +{
    + nct6775_asuswmi_evaluate_method(ASUSWMI_METHODID_WSIO, sio_data->ld,
    + reg, val, NULL);
    +}
    +
    +static void superio_wmi_select(struct nct6775_sio_data *sio_data, int ld)
    +{
    + sio_data->ld = ld;
    +}
    +
    +static int superio_wmi_enter(struct nct6775_sio_data *sio_data)
    +{
    + return 0;
    +}
    +
    +static void superio_wmi_exit(struct nct6775_sio_data *sio_data)
    +{
    +}
    +
    +static void superio_outb(struct nct6775_sio_data *sio_data, int reg, int val)
    +{
    + int ioreg = sio_data->sioreg;
    +
    + outb(reg, ioreg);
    + outb(val, ioreg + 1);
    +}
    +
    +static int superio_inb(struct nct6775_sio_data *sio_data, int reg)
    +{
    + int ioreg = sio_data->sioreg;
    +
    + outb(reg, ioreg);
    + return inb(ioreg + 1);
    +}
    +
    +static void superio_select(struct nct6775_sio_data *sio_data, int ld)
    +{
    + int ioreg = sio_data->sioreg;
    +
    + outb(SIO_REG_LDSEL, ioreg);
    + outb(ld, ioreg + 1);
    +}
    +
    +static int superio_enter(struct nct6775_sio_data *sio_data)
    +{
    + int ioreg = sio_data->sioreg;
    +
    + /*
    + * Try to reserve <ioreg> and <ioreg + 1> for exclusive access.
    + */
    + if (!request_muxed_region(ioreg, 2, DRVNAME))
    + return -EBUSY;
    +
    + outb(0x87, ioreg);
    + outb(0x87, ioreg);
    +
    + return 0;
    +}
    +
    +static void superio_exit(struct nct6775_sio_data *sio_data)
    +{
    + int ioreg = sio_data->sioreg;
    +
    + outb(0xaa, ioreg);
    + outb(0x02, ioreg);
    + outb(0x02, ioreg + 1);
    + release_region(ioreg, 2);
    +}
    +
    +static inline void nct6775_wmi_set_bank(struct nct6775_data *data, u16 reg)
    +{
    + u8 bank = reg >> 8;
    +
    + data->bank = bank;
    +}
    +
    +static int nct6775_wmi_reg_read(void *ctx, unsigned int reg, unsigned int *val)
    +{
    + struct nct6775_data *data = ctx;
    + int err, word_sized = nct6775_reg_is_word_sized(data, reg);
    + u8 tmp = 0;
    + u16 res;
    +
    + nct6775_wmi_set_bank(data, reg);
    +
    + err = nct6775_asuswmi_read(data->bank, reg & 0xff, &tmp);
    + if (err)
    + return err;
    +
    + res = tmp;
    + if (word_sized) {
    + err = nct6775_asuswmi_read(data->bank, (reg & 0xff) + 1, &tmp);
    + if (err)
    + return err;
    +
    + res = (res << 8) + tmp;
    + }
    + *val = res;
    + return 0;
    +}
    +
    +static int nct6775_wmi_reg_write(void *ctx, unsigned int reg, unsigned int value)
    +{
    + struct nct6775_data *data = ctx;
    + int res, word_sized = nct6775_reg_is_word_sized(data, reg);
    +
    + nct6775_wmi_set_bank(data, reg);
    +
    + if (word_sized) {
    + res = nct6775_asuswmi_write(data->bank, reg & 0xff, value >> 8);
    + if (res)
    + return res;
    +
    + res = nct6775_asuswmi_write(data->bank, (reg & 0xff) + 1, value);
    + } else {
    + res = nct6775_asuswmi_write(data->bank, reg & 0xff, value);
    + }
    +
    + return res;
    +}
    +
    +/*
    + * On older chips, only registers 0x50-0x5f are banked.
    + * On more recent chips, all registers are banked.
    + * Assume that is the case and set the bank number for each access.
    + * Cache the bank number so it only needs to be set if it changes.
    + */
    +static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg)
    +{
    + u8 bank = reg >> 8;
    +
    + if (data->bank != bank) {
    + outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET);
    + outb_p(bank, data->addr + DATA_REG_OFFSET);
    + data->bank = bank;
    + }
    +}
    +
    +static int nct6775_reg_read(void *ctx, unsigned int reg, unsigned int *val)
    +{
    + struct nct6775_data *data = ctx;
    + int word_sized = nct6775_reg_is_word_sized(data, reg);
    +
    + nct6775_set_bank(data, reg);
    + outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
    + *val = inb_p(data->addr + DATA_REG_OFFSET);
    + if (word_sized) {
    + outb_p((reg & 0xff) + 1,
    + data->addr + ADDR_REG_OFFSET);
    + *val = (*val << 8) + inb_p(data->addr + DATA_REG_OFFSET);
    + }
    + return 0;
    +}
    +
    +static int nct6775_reg_write(void *ctx, unsigned int reg, unsigned int value)
    +{
    + struct nct6775_data *data = ctx;
    + int word_sized = nct6775_reg_is_word_sized(data, reg);
    +
    + nct6775_set_bank(data, reg);
    + outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET);
    + if (word_sized) {
    + outb_p(value >> 8, data->addr + DATA_REG_OFFSET);
    + outb_p((reg & 0xff) + 1,
    + data->addr + ADDR_REG_OFFSET);
    + }
    + outb_p(value & 0xff, data->addr + DATA_REG_OFFSET);
    + return 0;
    +}
    +
    +static void nct6791_enable_io_mapping(struct nct6775_sio_data *sio_data)
    +{
    + int val;
    +
    + val = sio_data->sio_inb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE);
    + if (val & 0x10) {
    + pr_info("Enabling hardware monitor logical device mappings.\n");
    + sio_data->sio_outb(sio_data, NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE,
    + val & ~0x10);
    + }
    +}
    +
    +static int __maybe_unused nct6775_suspend(struct device *dev)
    +{
    + int err;
    + u16 tmp;
    + struct nct6775_data *data = dev_get_drvdata(dev);
    +
    + if (IS_ERR(data))
    + return PTR_ERR(data);
    +
    + mutex_lock(&data->update_lock);
    + err = nct6775_read_value(data, data->REG_VBAT, &tmp);
    + if (err)
    + goto out;
    + data->vbat = tmp;
    + if (data->kind == nct6775) {
    + err = nct6775_read_value(data, NCT6775_REG_FANDIV1, &tmp);
    + if (err)
    + goto out;
    + data->fandiv1 = tmp;
    +
    + err = nct6775_read_value(data, NCT6775_REG_FANDIV2, &tmp);
    + if (err)
    + goto out;
    + data->fandiv2 = tmp;
    + }
    +out:
    + mutex_unlock(&data->update_lock);
    +
    + return err;
    +}
    +
    +static int __maybe_unused nct6775_resume(struct device *dev)
    +{
    + struct nct6775_data *data = dev_get_drvdata(dev);
    + struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
    + int i, j, err = 0;
    + u8 reg;
    +
    + mutex_lock(&data->update_lock);
    + data->bank = 0xff; /* Force initial bank selection */
    +
    + err = sio_data->sio_enter(sio_data);
    + if (err)
    + goto abort;
    +
    + sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    + reg = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    + if (reg != data->sio_reg_enable)
    + sio_data->sio_outb(sio_data, SIO_REG_ENABLE, data->sio_reg_enable);
    +
    + if (data->kind == nct6791 || data->kind == nct6792 ||
    + data->kind == nct6793 || data->kind == nct6795 ||
    + data->kind == nct6796 || data->kind == nct6797 ||
    + data->kind == nct6798)
    + nct6791_enable_io_mapping(sio_data);
    +
    + sio_data->sio_exit(sio_data);
    +
    + /* Restore limits */
    + for (i = 0; i < data->in_num; i++) {
    + if (!(data->have_in & BIT(i)))
    + continue;
    +
    + err = nct6775_write_value(data, data->REG_IN_MINMAX[0][i], data->in[i][1]);
    + if (err)
    + goto abort;
    + err = nct6775_write_value(data, data->REG_IN_MINMAX[1][i], data->in[i][2]);
    + if (err)
    + goto abort;
    + }
    +
    + for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) {
    + if (!(data->has_fan_min & BIT(i)))
    + continue;
    +
    + err = nct6775_write_value(data, data->REG_FAN_MIN[i], data->fan_min[i]);
    + if (err)
    + goto abort;
    + }
    +
    + for (i = 0; i < NUM_TEMP; i++) {
    + if (!(data->have_temp & BIT(i)))
    + continue;
    +
    + for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++)
    + if (data->reg_temp[j][i]) {
    + err = nct6775_write_temp(data, data->reg_temp[j][i],
    + data->temp[j][i]);
    + if (err)
    + goto abort;
    + }
    + }
    +
    + /* Restore other settings */
    + err = nct6775_write_value(data, data->REG_VBAT, data->vbat);
    + if (err)
    + goto abort;
    + if (data->kind == nct6775) {
    + err = nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1);
    + if (err)
    + goto abort;
    + err = nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2);
    + }
    +
    +abort:
    + /* Force re-reading all values */
    + data->valid = false;
    + mutex_unlock(&data->update_lock);
    +
    + return err;
    +}
    +
    +static SIMPLE_DEV_PM_OPS(nct6775_dev_pm_ops, nct6775_suspend, nct6775_resume);
    +
    +static void
    +nct6775_check_fan_inputs(struct nct6775_data *data, struct nct6775_sio_data *sio_data)
    +{
    + bool fan3pin = false, fan4pin = false, fan4min = false;
    + bool fan5pin = false, fan6pin = false, fan7pin = false;
    + bool pwm3pin = false, pwm4pin = false, pwm5pin = false;
    + bool pwm6pin = false, pwm7pin = false;
    +
    + /* Store SIO_REG_ENABLE for use during resume */
    + sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    + data->sio_reg_enable = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    +
    + /* fan4 and fan5 share some pins with the GPIO and serial flash */
    + if (data->kind == nct6775) {
    + int cr2c = sio_data->sio_inb(sio_data, 0x2c);
    +
    + fan3pin = cr2c & BIT(6);
    + pwm3pin = cr2c & BIT(7);
    +
    + /* On NCT6775, fan4 shares pins with the fdc interface */
    + fan4pin = !(sio_data->sio_inb(sio_data, 0x2A) & 0x80);
    + } else if (data->kind == nct6776) {
    + bool gpok = sio_data->sio_inb(sio_data, 0x27) & 0x80;
    + const char *board_vendor, *board_name;
    +
    + board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
    + board_name = dmi_get_system_info(DMI_BOARD_NAME);
    +
    + if (board_name && board_vendor &&
    + !strcmp(board_vendor, "ASRock")) {
    + /*
    + * Auxiliary fan monitoring is not enabled on ASRock
    + * Z77 Pro4-M if booted in UEFI Ultra-FastBoot mode.
    + * Observed with BIOS version 2.00.
    + */
    + if (!strcmp(board_name, "Z77 Pro4-M")) {
    + if ((data->sio_reg_enable & 0xe0) != 0xe0) {
    + data->sio_reg_enable |= 0xe0;
    + sio_data->sio_outb(sio_data, SIO_REG_ENABLE,
    + data->sio_reg_enable);
    + }
    + }
    + }
    +
    + if (data->sio_reg_enable & 0x80)
    + fan3pin = gpok;
    + else
    + fan3pin = !(sio_data->sio_inb(sio_data, 0x24) & 0x40);
    +
    + if (data->sio_reg_enable & 0x40)
    + fan4pin = gpok;
    + else
    + fan4pin = sio_data->sio_inb(sio_data, 0x1C) & 0x01;
    +
    + if (data->sio_reg_enable & 0x20)
    + fan5pin = gpok;
    + else
    + fan5pin = sio_data->sio_inb(sio_data, 0x1C) & 0x02;
    +
    + fan4min = fan4pin;
    + pwm3pin = fan3pin;
    + } else if (data->kind == nct6106) {
    + int cr24 = sio_data->sio_inb(sio_data, 0x24);
    +
    + fan3pin = !(cr24 & 0x80);
    + pwm3pin = cr24 & 0x08;
    + } else if (data->kind == nct6116) {
    + int cr1a = sio_data->sio_inb(sio_data, 0x1a);
    + int cr1b = sio_data->sio_inb(sio_data, 0x1b);
    + int cr24 = sio_data->sio_inb(sio_data, 0x24);
    + int cr2a = sio_data->sio_inb(sio_data, 0x2a);
    + int cr2b = sio_data->sio_inb(sio_data, 0x2b);
    + int cr2f = sio_data->sio_inb(sio_data, 0x2f);
    +
    + fan3pin = !(cr2b & 0x10);
    + fan4pin = (cr2b & 0x80) || // pin 1(2)
    + (!(cr2f & 0x10) && (cr1a & 0x04)); // pin 65(66)
    + fan5pin = (cr2b & 0x80) || // pin 126(127)
    + (!(cr1b & 0x03) && (cr2a & 0x02)); // pin 94(96)
    +
    + pwm3pin = fan3pin && (cr24 & 0x08);
    + pwm4pin = fan4pin;
    + pwm5pin = fan5pin;
    + } else {
    + /*
    + * NCT6779D, NCT6791D, NCT6792D, NCT6793D, NCT6795D, NCT6796D,
    + * NCT6797D, NCT6798D
    + */
    + int cr1a = sio_data->sio_inb(sio_data, 0x1a);
    + int cr1b = sio_data->sio_inb(sio_data, 0x1b);
    + int cr1c = sio_data->sio_inb(sio_data, 0x1c);
    + int cr1d = sio_data->sio_inb(sio_data, 0x1d);
    + int cr2a = sio_data->sio_inb(sio_data, 0x2a);
    + int cr2b = sio_data->sio_inb(sio_data, 0x2b);
    + int cr2d = sio_data->sio_inb(sio_data, 0x2d);
    + int cr2f = sio_data->sio_inb(sio_data, 0x2f);
    + bool dsw_en = cr2f & BIT(3);
    + bool ddr4_en = cr2f & BIT(4);
    + int cre0;
    + int creb;
    + int cred;
    +
    + sio_data->sio_select(sio_data, NCT6775_LD_12);
    + cre0 = sio_data->sio_inb(sio_data, 0xe0);
    + creb = sio_data->sio_inb(sio_data, 0xeb);
    + cred = sio_data->sio_inb(sio_data, 0xed);
    +
    + fan3pin = !(cr1c & BIT(5));
    + fan4pin = !(cr1c & BIT(6));
    + fan5pin = !(cr1c & BIT(7));
    +
    + pwm3pin = !(cr1c & BIT(0));
    + pwm4pin = !(cr1c & BIT(1));
    + pwm5pin = !(cr1c & BIT(2));
    +
    + switch (data->kind) {
    + case nct6791:
    + fan6pin = cr2d & BIT(1);
    + pwm6pin = cr2d & BIT(0);
    + break;
    + case nct6792:
    + fan6pin = !dsw_en && (cr2d & BIT(1));
    + pwm6pin = !dsw_en && (cr2d & BIT(0));
    + break;
    + case nct6793:
    + fan5pin |= cr1b & BIT(5);
    + fan5pin |= creb & BIT(5);
    +
    + fan6pin = !dsw_en && (cr2d & BIT(1));
    + fan6pin |= creb & BIT(3);
    +
    + pwm5pin |= cr2d & BIT(7);
    + pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    +
    + pwm6pin = !dsw_en && (cr2d & BIT(0));
    + pwm6pin |= creb & BIT(2);
    + break;
    + case nct6795:
    + fan5pin |= cr1b & BIT(5);
    + fan5pin |= creb & BIT(5);
    +
    + fan6pin = (cr2a & BIT(4)) &&
    + (!dsw_en || (cred & BIT(4)));
    + fan6pin |= creb & BIT(3);
    +
    + pwm5pin |= cr2d & BIT(7);
    + pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    +
    + pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
    + pwm6pin |= creb & BIT(2);
    + break;
    + case nct6796:
    + fan5pin |= cr1b & BIT(5);
    + fan5pin |= (cre0 & BIT(3)) && !(cr1b & BIT(0));
    + fan5pin |= creb & BIT(5);
    +
    + fan6pin = (cr2a & BIT(4)) &&
    + (!dsw_en || (cred & BIT(4)));
    + fan6pin |= creb & BIT(3);
    +
    + fan7pin = !(cr2b & BIT(2));
    +
    + pwm5pin |= cr2d & BIT(7);
    + pwm5pin |= (cre0 & BIT(4)) && !(cr1b & BIT(0));
    + pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    +
    + pwm6pin = (cr2a & BIT(3)) && (cred & BIT(2));
    + pwm6pin |= creb & BIT(2);
    +
    + pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
    + break;
    + case nct6797:
    + fan5pin |= !ddr4_en && (cr1b & BIT(5));
    + fan5pin |= creb & BIT(5);
    +
    + fan6pin = cr2a & BIT(4);
    + fan6pin |= creb & BIT(3);
    +
    + fan7pin = cr1a & BIT(1);
    +
    + pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    + pwm5pin |= !ddr4_en && (cr2d & BIT(7));
    +
    + pwm6pin = creb & BIT(2);
    + pwm6pin |= cred & BIT(2);
    +
    + pwm7pin = cr1d & BIT(4);
    + break;
    + case nct6798:
    + fan6pin = !(cr1b & BIT(0)) && (cre0 & BIT(3));
    + fan6pin |= cr2a & BIT(4);
    + fan6pin |= creb & BIT(5);
    +
    + fan7pin = cr1b & BIT(5);
    + fan7pin |= !(cr2b & BIT(2));
    + fan7pin |= creb & BIT(3);
    +
    + pwm6pin = !(cr1b & BIT(0)) && (cre0 & BIT(4));
    + pwm6pin |= !(cred & BIT(2)) && (cr2a & BIT(3));
    + pwm6pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
    +
    + pwm7pin = !(cr1d & (BIT(2) | BIT(3)));
    + pwm7pin |= cr2d & BIT(7);
    + pwm7pin |= creb & BIT(2);
    + break;
    + default: /* NCT6779D */
    + break;
    + }
    +
    + fan4min = fan4pin;
    + }
    +
    + /* fan 1 and 2 (0x03) are always present */
    + data->has_fan = 0x03 | (fan3pin << 2) | (fan4pin << 3) |
    + (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
    + data->has_fan_min = 0x03 | (fan3pin << 2) | (fan4min << 3) |
    + (fan5pin << 4) | (fan6pin << 5) | (fan7pin << 6);
    + data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) |
    + (pwm5pin << 4) | (pwm6pin << 5) | (pwm7pin << 6);
    +}
    +
    +static ssize_t
    +cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)
    +{
    + struct nct6775_data *data = dev_get_drvdata(dev);
    +
    + return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
    +}
    +
    +static DEVICE_ATTR_RO(cpu0_vid);
    +
    +/* Case open detection */
    +
    +static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee };
    +static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 };
    +
    +static ssize_t
    +clear_caseopen(struct device *dev, struct device_attribute *attr,
    + const char *buf, size_t count)
    +{
    + struct nct6775_data *data = dev_get_drvdata(dev);
    + struct nct6775_sio_data *sio_data = data->driver_data;
    + int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE;
    + unsigned long val;
    + u8 reg;
    + int ret;
    +
    + if (kstrtoul(buf, 10, &val) || val != 0)
    + return -EINVAL;
    +
    + mutex_lock(&data->update_lock);
    +
    + /*
    + * Use CR registers to clear caseopen status.
    + * The CR registers are the same for all chips, and not all chips
    + * support clearing the caseopen status through "regular" registers.
    + */
    + ret = sio_data->sio_enter(sio_data);
    + if (ret) {
    + count = ret;
    + goto error;
    + }
    +
    + sio_data->sio_select(sio_data, NCT6775_LD_ACPI);
    + reg = sio_data->sio_inb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr]);
    + reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr];
    + sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
    + reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr];
    + sio_data->sio_outb(sio_data, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg);
    + sio_data->sio_exit(sio_data);
    +
    + data->valid = false; /* Force cache refresh */
    +error:
    + mutex_unlock(&data->update_lock);
    + return count;
    +}
    +
    +static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, nct6775_show_alarm,
    + clear_caseopen, INTRUSION_ALARM_BASE);
    +static SENSOR_DEVICE_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, nct6775_show_alarm,
    + clear_caseopen, INTRUSION_ALARM_BASE + 1);
    +static SENSOR_DEVICE_ATTR(intrusion0_beep, S_IWUSR | S_IRUGO, nct6775_show_beep,
    + nct6775_store_beep, INTRUSION_ALARM_BASE);
    +static SENSOR_DEVICE_ATTR(intrusion1_beep, S_IWUSR | S_IRUGO, nct6775_show_beep,
    + nct6775_store_beep, INTRUSION_ALARM_BASE + 1);
    +static SENSOR_DEVICE_ATTR(beep_enable, S_IWUSR | S_IRUGO, nct6775_show_beep,
    + nct6775_store_beep, BEEP_ENABLE_BASE);
    +
    +static umode_t nct6775_other_is_visible(struct kobject *kobj,
    + struct attribute *attr, int index)
    +{
    + struct device *dev = kobj_to_dev(kobj);
    + struct nct6775_data *data = dev_get_drvdata(dev);
    +
    + if (index == 0 && !data->have_vid)
    + return 0;
    +
    + if (index == 1 || index == 2) {
    + if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
    + return 0;
    + }
    +
    + if (index == 3 || index == 4) {
    + if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
    + return 0;
    + }
    +
    + return nct6775_attr_mode(data, attr);
    +}
    +
    +/*
    + * nct6775_other_is_visible uses the index into the following array
    + * to determine if attributes should be created or not.
    + * Any change in order or content must be matched.
    + */
    +static struct attribute *nct6775_attributes_other[] = {
    + &dev_attr_cpu0_vid.attr, /* 0 */
    + &sensor_dev_attr_intrusion0_alarm.dev_attr.attr, /* 1 */
    + &sensor_dev_attr_intrusion1_alarm.dev_attr.attr, /* 2 */
    + &sensor_dev_attr_intrusion0_beep.dev_attr.attr, /* 3 */
    + &sensor_dev_attr_intrusion1_beep.dev_attr.attr, /* 4 */
    + &sensor_dev_attr_beep_enable.dev_attr.attr, /* 5 */
    +
    + NULL
    +};
    +
    +static const struct attribute_group nct6775_group_other = {
    + .attrs = nct6775_attributes_other,
    + .is_visible = nct6775_other_is_visible,
    +};
    +
    +static int nct6775_platform_probe_init(struct nct6775_data *data)
    +{
    + int err;
    + u8 cr2a;
    + struct nct6775_sio_data *sio_data = data->driver_data;
    +
    + err = sio_data->sio_enter(sio_data);
    + if (err)
    + return err;
    +
    + cr2a = sio_data->sio_inb(sio_data, 0x2a);
    + switch (data->kind) {
    + case nct6775:
    + data->have_vid = (cr2a & 0x40);
    + break;
    + case nct6776:
    + data->have_vid = (cr2a & 0x60) == 0x40;
    + break;
    + case nct6106:
    + case nct6116:
    + case nct6779:
    + case nct6791:
    + case nct6792:
    + case nct6793:
    + case nct6795:
    + case nct6796:
    + case nct6797:
    + case nct6798:
    + break;
    + }
    +
    + /*
    + * Read VID value
    + * We can get the VID input values directly at logical device D 0xe3.
    + */
    + if (data->have_vid) {
    + sio_data->sio_select(sio_data, NCT6775_LD_VID);
    + data->vid = sio_data->sio_inb(sio_data, 0xe3);
    + data->vrm = vid_which_vrm();
    + }
    +
    + if (fan_debounce) {
    + u8 tmp;
    +
    + sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    + tmp = sio_data->sio_inb(sio_data,
    + NCT6775_REG_CR_FAN_DEBOUNCE);
    + switch (data->kind) {
    + case nct6106:
    + case nct6116:
    + tmp |= 0xe0;
    + break;
    + case nct6775:
    + tmp |= 0x1e;
    + break;
    + case nct6776:
    + case nct6779:
    + tmp |= 0x3e;
    + break;
    + case nct6791:
    + case nct6792:
    + case nct6793:
    + case nct6795:
    + case nct6796:
    + case nct6797:
    + case nct6798:
    + tmp |= 0x7e;
    + break;
    + }
    + sio_data->sio_outb(sio_data, NCT6775_REG_CR_FAN_DEBOUNCE,
    + tmp);
    + pr_info("Enabled fan debounce for chip %s\n", data->name);
    + }
    +
    + nct6775_check_fan_inputs(data, sio_data);
    +
    + sio_data->sio_exit(sio_data);
    +
    + return nct6775_add_attr_group(data, &nct6775_group_other);
    +}
    +
    +static const struct regmap_config nct6775_regmap_config = {
    + .reg_bits = 16,
    + .val_bits = 16,
    + .reg_read = nct6775_reg_read,
    + .reg_write = nct6775_reg_write,
    +};
    +
    +static const struct regmap_config nct6775_wmi_regmap_config = {
    + .reg_bits = 16,
    + .val_bits = 16,
    + .reg_read = nct6775_wmi_reg_read,
    + .reg_write = nct6775_wmi_reg_write,
    +};
    +
    +static int nct6775_platform_probe(struct platform_device *pdev)
    +{
    + struct device *dev = &pdev->dev;
    + struct nct6775_sio_data *sio_data = dev_get_platdata(dev);
    + struct nct6775_data *data;
    + struct resource *res;
    + const struct regmap_config *regmapcfg;
    +
    + if (sio_data->access == access_direct) {
    + res = platform_get_resource(pdev, IORESOURCE_IO, 0);
    + if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH, DRVNAME))
    + return -EBUSY;
    + }
    +
    + data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
    + if (!data)
    + return -ENOMEM;
    +
    + data->kind = sio_data->kind;
    + data->sioreg = sio_data->sioreg;
    +
    + if (sio_data->access == access_direct) {
    + data->addr = res->start;
    + regmapcfg = &nct6775_regmap_config;
    + } else {
    + regmapcfg = &nct6775_wmi_regmap_config;
    + }
    +
    + platform_set_drvdata(pdev, data);
    +
    + data->driver_data = sio_data;
    + data->driver_init = nct6775_platform_probe_init;
    +
    + return nct6775_probe(&pdev->dev, data, regmapcfg);
    +}
    +
    +static struct platform_driver nct6775_driver = {
    + .driver = {
    + .name = DRVNAME,
    + .pm = &nct6775_dev_pm_ops,
    + },
    + .probe = nct6775_platform_probe,
    +};
    +
    +/* nct6775_find() looks for a '627 in the Super-I/O config space */
    +static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
    +{
    + u16 val;
    + int err;
    + int addr;
    +
    + sio_data->access = access_direct;
    + sio_data->sioreg = sioaddr;
    +
    + err = sio_data->sio_enter(sio_data);
    + if (err)
    + return err;
    +
    + val = (sio_data->sio_inb(sio_data, SIO_REG_DEVID) << 8) |
    + sio_data->sio_inb(sio_data, SIO_REG_DEVID + 1);
    + if (force_id && val != 0xffff)
    + val = force_id;
    +
    + switch (val & SIO_ID_MASK) {
    + case SIO_NCT6106_ID:
    + sio_data->kind = nct6106;
    + break;
    + case SIO_NCT6116_ID:
    + sio_data->kind = nct6116;
    + break;
    + case SIO_NCT6775_ID:
    + sio_data->kind = nct6775;
    + break;
    + case SIO_NCT6776_ID:
    + sio_data->kind = nct6776;
    + break;
    + case SIO_NCT6779_ID:
    + sio_data->kind = nct6779;
    + break;
    + case SIO_NCT6791_ID:
    + sio_data->kind = nct6791;
    + break;
    + case SIO_NCT6792_ID:
    + sio_data->kind = nct6792;
    + break;
    + case SIO_NCT6793_ID:
    + sio_data->kind = nct6793;
    + break;
    + case SIO_NCT6795_ID:
    + sio_data->kind = nct6795;
    + break;
    + case SIO_NCT6796_ID:
    + sio_data->kind = nct6796;
    + break;
    + case SIO_NCT6797_ID:
    + sio_data->kind = nct6797;
    + break;
    + case SIO_NCT6798_ID:
    + sio_data->kind = nct6798;
    + break;
    + default:
    + if (val != 0xffff)
    + pr_debug("unsupported chip ID: 0x%04x\n", val);
    + sio_data->sio_exit(sio_data);
    + return -ENODEV;
    + }
    +
    + /* We have a known chip, find the HWM I/O address */
    + sio_data->sio_select(sio_data, NCT6775_LD_HWM);
    + val = (sio_data->sio_inb(sio_data, SIO_REG_ADDR) << 8)
    + | sio_data->sio_inb(sio_data, SIO_REG_ADDR + 1);
    + addr = val & IOREGION_ALIGNMENT;
    + if (addr == 0) {
    + pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n");
    + sio_data->sio_exit(sio_data);
    + return -ENODEV;
    + }
    +
    + /* Activate logical device if needed */
    + val = sio_data->sio_inb(sio_data, SIO_REG_ENABLE);
    + if (!(val & 0x01)) {
    + pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n");
    + sio_data->sio_outb(sio_data, SIO_REG_ENABLE, val | 0x01);
    + }
    +
    + if (sio_data->kind == nct6791 || sio_data->kind == nct6792 ||
    + sio_data->kind == nct6793 || sio_data->kind == nct6795 ||
    + sio_data->kind == nct6796 || sio_data->kind == nct6797 ||
    + sio_data->kind == nct6798)
    + nct6791_enable_io_mapping(sio_data);
    +
    + sio_data->sio_exit(sio_data);
    + pr_info("Found %s or compatible chip at %#x:%#x\n",
    + nct6775_sio_names[sio_data->kind], sioaddr, addr);
    +
    + return addr;
    +}
    +
    +/*
    + * when Super-I/O functions move to a separate file, the Super-I/O
    + * bus will manage the lifetime of the device and this module will only keep
    + * track of the nct6775 driver. But since we use platform_device_alloc(), we
    + * must keep track of the device
    + */
    +static struct platform_device *pdev[2];
    +
    +static const char * const asus_wmi_boards[] = {
    + "ProArt X570-CREATOR WIFI",
    + "Pro B550M-C",
    + "Pro WS X570-ACE",
    + "PRIME B360-PLUS",
    + "PRIME B460-PLUS",
    + "PRIME B550-PLUS",
    + "PRIME B550M-A",
    + "PRIME B550M-A (WI-FI)",
    + "PRIME X570-P",
    + "PRIME X570-PRO",
    + "ROG CROSSHAIR VIII DARK HERO",
    + "ROG CROSSHAIR VIII FORMULA",
    + "ROG CROSSHAIR VIII HERO",
    + "ROG CROSSHAIR VIII IMPACT",
    + "ROG STRIX B550-A GAMING",
    + "ROG STRIX B550-E GAMING",
    + "ROG STRIX B550-F GAMING",
    + "ROG STRIX B550-F GAMING (WI-FI)",
    + "ROG STRIX B550-F GAMING WIFI II",
    + "ROG STRIX B550-I GAMING",
    + "ROG STRIX B550-XE GAMING (WI-FI)",
    + "ROG STRIX X570-E GAMING",
    + "ROG STRIX X570-F GAMING",
    + "ROG STRIX X570-I GAMING",
    + "ROG STRIX Z390-E GAMING",
    + "ROG STRIX Z390-F GAMING",
    + "ROG STRIX Z390-H GAMING",
    + "ROG STRIX Z390-I GAMING",
    + "ROG STRIX Z490-A GAMING",
    + "ROG STRIX Z490-E GAMING",
    + "ROG STRIX Z490-F GAMING",
    + "ROG STRIX Z490-G GAMING",
    + "ROG STRIX Z490-G GAMING (WI-FI)",
    + "ROG STRIX Z490-H GAMING",
    + "ROG STRIX Z490-I GAMING",
    + "TUF GAMING B550M-PLUS",
    + "TUF GAMING B550M-PLUS (WI-FI)",
    + "TUF GAMING B550-PLUS",
    + "TUF GAMING B550-PRO",
    + "TUF GAMING X570-PLUS",
    + "TUF GAMING X570-PLUS (WI-FI)",
    + "TUF GAMING X570-PRO (WI-FI)",
    + "TUF GAMING Z490-PLUS",
    + "TUF GAMING Z490-PLUS (WI-FI)",
    +};
    +
    +static int __init sensors_nct6775_platform_init(void)
    +{
    + int i, err;
    + bool found = false;
    + int address;
    + struct resource res;
    + struct nct6775_sio_data sio_data;
    + int sioaddr[2] = { 0x2e, 0x4e };
    + enum sensor_access access = access_direct;
    + const char *board_vendor, *board_name;
    + u8 tmp;
    +
    + err = platform_driver_register(&nct6775_driver);
    + if (err)
    + return err;
    +
    + board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
    + board_name = dmi_get_system_info(DMI_BOARD_NAME);
    +
    + if (board_name && board_vendor &&
    + !strcmp(board_vendor, "ASUSTeK COMPUTER INC.")) {
    + err = match_string(asus_wmi_boards, ARRAY_SIZE(asus_wmi_boards),
    + board_name);
    + if (err >= 0) {
    + /* if reading chip id via WMI succeeds, use WMI */
    + if (!nct6775_asuswmi_read(0, NCT6775_PORT_CHIPID, &tmp) && tmp) {
    + pr_info("Using Asus WMI to access %#x chip.\n", tmp);
    + access = access_asuswmi;
    + } else {
    + pr_err("Can't read ChipID by Asus WMI.\n");
    + }
    + }
    + }
    +
    + /*
    + * initialize sio_data->kind and sio_data->sioreg.
    + *
    + * when Super-I/O functions move to a separate file, the Super-I/O
    + * driver will probe 0x2e and 0x4e and auto-detect the presence of a
    + * nct6775 hardware monitor, and call probe()
    + */
    + for (i = 0; i < ARRAY_SIZE(pdev); i++) {
    + sio_data.sio_outb = superio_outb;
    + sio_data.sio_inb = superio_inb;
    + sio_data.sio_select = superio_select;
    + sio_data.sio_enter = superio_enter;
    + sio_data.sio_exit = superio_exit;
    +
    + address = nct6775_find(sioaddr[i], &sio_data);
    + if (address <= 0)
    + continue;
    +
    + found = true;
    +
    + sio_data.access = access;
    +
    + if (access == access_asuswmi) {
    + sio_data.sio_outb = superio_wmi_outb;
    + sio_data.sio_inb = superio_wmi_inb;
    + sio_data.sio_select = superio_wmi_select;
    + sio_data.sio_enter = superio_wmi_enter;
    + sio_data.sio_exit = superio_wmi_exit;
    + }
    +
    + pdev[i] = platform_device_alloc(DRVNAME, address);
    + if (!pdev[i]) {
    + err = -ENOMEM;
    + goto exit_device_unregister;
    + }
    +
    + err = platform_device_add_data(pdev[i], &sio_data,
    + sizeof(struct nct6775_sio_data));
    + if (err)
    + goto exit_device_put;
    +
    + if (sio_data.access == access_direct) {
    + memset(&res, 0, sizeof(res));
    + res.name = DRVNAME;
    + res.start = address + IOREGION_OFFSET;
    + res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1;
    + res.flags = IORESOURCE_IO;
    +
    + err = acpi_check_resource_conflict(&res);
    + if (err) {
    + platform_device_put(pdev[i]);
    + pdev[i] = NULL;
    + continue;
    + }
    +
    + err = platform_device_add_resources(pdev[i], &res, 1);
    + if (err)
    + goto exit_device_put;
    + }
    +
    + /* platform_device_add calls probe() */
    + err = platform_device_add(pdev[i]);
    + if (err)
    + goto exit_device_put;
    + }
    + if (!found) {
    + err = -ENODEV;
    + goto exit_unregister;
    + }
    +
    + return 0;
    +
    +exit_device_put:
    + platform_device_put(pdev[i]);
    +exit_device_unregister:
    + while (--i >= 0) {
    + if (pdev[i])
    + platform_device_unregister(pdev[i]);
    + }
    +exit_unregister:
    + platform_driver_unregister(&nct6775_driver);
    + return err;
    +}
    +
    +static void __exit sensors_nct6775_platform_exit(void)
    +{
    + int i;
    +
    + for (i = 0; i < ARRAY_SIZE(pdev); i++) {
    + if (pdev[i])
    + platform_device_unregister(pdev[i]);
    + }
    + platform_driver_unregister(&nct6775_driver);
    +}
    +
    +MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
    +MODULE_DESCRIPTION("Platform driver for NCT6775F and compatible chips");
    +MODULE_LICENSE("GPL");
    +MODULE_IMPORT_NS(HWMON_NCT6775);
    +
    +/*
    + * For module-name compatibility with the original version of this driver
    + * prior to the core/platform/i2c split
    + */
    +MODULE_ALIAS("nct6775");
    +
    +module_init(sensors_nct6775_platform_init);
    +module_exit(sensors_nct6775_platform_exit);
    diff --git a/drivers/hwmon/nct6775.h b/drivers/hwmon/nct6775.h
    new file mode 100644
    index 000000000000..452a80bf0b86
    --- /dev/null
    +++ b/drivers/hwmon/nct6775.h
    @@ -0,0 +1,252 @@
    +/* SPDX-License-Identifier: GPL-2.0-or-later */
    +#ifndef __HWMON_NCT6775_H__
    +#define __HWMON_NCT6775_H__
    +
    +#include <linux/types.h>
    +
    +enum kinds { nct6106, nct6116, nct6775, nct6776, nct6779, nct6791, nct6792,
    + nct6793, nct6795, nct6796, nct6797, nct6798 };
    +enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 };
    +
    +#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/
    +#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */
    +#define NUM_TSI_TEMP 8 /* Max number of TSI temp register pairs */
    +
    +#define NUM_REG_ALARM 7 /* Max number of alarm registers */
    +#define NUM_REG_BEEP 5 /* Max number of beep registers */
    +
    +#define NUM_FAN 7
    +
    +struct nct6775_data {
    + int addr; /* IO base of hw monitor block */
    + int sioreg; /* SIO register address */
    + enum kinds kind;
    + const char *name;
    +
    + const struct attribute_group *groups[7];
    + u8 num_groups;
    +
    + u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
    + * 3=temp_crit, 4=temp_lcrit
    + */
    + u8 temp_src[NUM_TEMP];
    + u16 reg_temp_config[NUM_TEMP];
    + const char * const *temp_label;
    + u32 temp_mask;
    + u32 virt_temp_mask;
    +
    + u16 REG_CONFIG;
    + u16 REG_VBAT;
    + u16 REG_DIODE;
    + u8 DIODE_MASK;
    +
    + const s8 *ALARM_BITS;
    + const s8 *BEEP_BITS;
    +
    + const u16 *REG_VIN;
    + const u16 *REG_IN_MINMAX[2];
    +
    + const u16 *REG_TARGET;
    + const u16 *REG_FAN;
    + const u16 *REG_FAN_MODE;
    + const u16 *REG_FAN_MIN;
    + const u16 *REG_FAN_PULSES;
    + const u16 *FAN_PULSE_SHIFT;
    + const u16 *REG_FAN_TIME[3];
    +
    + const u16 *REG_TOLERANCE_H;
    +
    + const u8 *REG_PWM_MODE;
    + const u8 *PWM_MODE_MASK;
    +
    + const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
    + * [3]=pwm_max, [4]=pwm_step,
    + * [5]=weight_duty_step, [6]=weight_duty_base
    + */
    + const u16 *REG_PWM_READ;
    +
    + const u16 *REG_CRITICAL_PWM_ENABLE;
    + u8 CRITICAL_PWM_ENABLE_MASK;
    + const u16 *REG_CRITICAL_PWM;
    +
    + const u16 *REG_AUTO_TEMP;
    + const u16 *REG_AUTO_PWM;
    +
    + const u16 *REG_CRITICAL_TEMP;
    + const u16 *REG_CRITICAL_TEMP_TOLERANCE;
    +
    + const u16 *REG_TEMP_SOURCE; /* temp register sources */
    + const u16 *REG_TEMP_SEL;
    + const u16 *REG_WEIGHT_TEMP_SEL;
    + const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */
    +
    + const u16 *REG_TEMP_OFFSET;
    +
    + const u16 *REG_ALARM;
    + const u16 *REG_BEEP;
    +
    + const u16 *REG_TSI_TEMP;
    +
    + unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg);
    + unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg);
    +
    + struct mutex update_lock;
    + bool valid; /* true if following fields are valid */
    + unsigned long last_updated; /* In jiffies */
    +
    + /* Register values */
    + u8 bank; /* current register bank */
    + u8 in_num; /* number of in inputs we have */
    + u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */
    + unsigned int rpm[NUM_FAN];
    + u16 fan_min[NUM_FAN];
    + u8 fan_pulses[NUM_FAN];
    + u8 fan_div[NUM_FAN];
    + u8 has_pwm;
    + u8 has_fan; /* some fan inputs can be disabled */
    + u8 has_fan_min; /* some fans don't have min register */
    + bool has_fan_div;
    +
    + u8 num_temp_alarms; /* 2, 3, or 6 */
    + u8 num_temp_beeps; /* 2, 3, or 6 */
    + u8 temp_fixed_num; /* 3 or 6 */
    + u8 temp_type[NUM_TEMP_FIXED];
    + s8 temp_offset[NUM_TEMP_FIXED];
    + s16 temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
    + * 3=temp_crit, 4=temp_lcrit */
    + s16 tsi_temp[NUM_TSI_TEMP];
    + u64 alarms;
    + u64 beeps;
    +
    + u8 pwm_num; /* number of pwm */
    + u8 pwm_mode[NUM_FAN]; /* 0->DC variable voltage,
    + * 1->PWM variable duty cycle
    + */
    + enum pwm_enable pwm_enable[NUM_FAN];
    + /* 0->off
    + * 1->manual
    + * 2->thermal cruise mode (also called SmartFan I)
    + * 3->fan speed cruise mode
    + * 4->SmartFan III
    + * 5->enhanced variable thermal cruise (SmartFan IV)
    + */
    + u8 pwm[7][NUM_FAN]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor,
    + * [3]=pwm_max, [4]=pwm_step,
    + * [5]=weight_duty_step, [6]=weight_duty_base
    + */
    +
    + u8 target_temp[NUM_FAN];
    + u8 target_temp_mask;
    + u32 target_speed[NUM_FAN];
    + u32 target_speed_tolerance[NUM_FAN];
    + u8 speed_tolerance_limit;
    +
    + u8 temp_tolerance[2][NUM_FAN];
    + u8 tolerance_mask;
    +
    + u8 fan_time[3][NUM_FAN]; /* 0 = stop_time, 1 = step_up, 2 = step_down */
    +
    + /* Automatic fan speed control registers */
    + int auto_pwm_num;
    + u8 auto_pwm[NUM_FAN][7];
    + u8 auto_temp[NUM_FAN][7];
    + u8 pwm_temp_sel[NUM_FAN];
    + u8 pwm_weight_temp_sel[NUM_FAN];
    + u8 weight_temp[3][NUM_FAN]; /* 0->temp_step, 1->temp_step_tol,
    + * 2->temp_base
    + */
    +
    + u8 vid;
    + u8 vrm;
    +
    + bool have_vid;
    +
    + u16 have_temp;
    + u16 have_temp_fixed;
    + u16 have_tsi_temp;
    + u16 have_in;
    +
    + /* Remember extra register values over suspend/resume */
    + u8 vbat;
    + u8 fandiv1;
    + u8 fandiv2;
    + u8 sio_reg_enable;
    +
    + struct regmap *regmap;
    + bool read_only;
    +
    + /* driver-specific (platform, i2c) initialization hook and data */
    + int (*driver_init)(struct nct6775_data *data);
    + void *driver_data;
    +};
    +
    +static inline int nct6775_read_value(struct nct6775_data *data, u16 reg, u16 *value)
    +{
    + unsigned int tmp;
    + int ret = regmap_read(data->regmap, reg, &tmp);
    +
    + if (!ret)
    + *value = tmp;
    + return ret;
    +}
    +
    +static inline int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value)
    +{
    + return regmap_write(data->regmap, reg, value);
    +}
    +
    +bool nct6775_reg_is_word_sized(struct nct6775_data *data, u16 reg);
    +int nct6775_probe(struct device *dev, struct nct6775_data *data,
    + const struct regmap_config *regmapcfg);
    +
    +ssize_t nct6775_show_alarm(struct device *dev, struct device_attribute *attr, char *buf);
    +ssize_t nct6775_show_beep(struct device *dev, struct device_attribute *attr, char *buf);
    +ssize_t nct6775_store_beep(struct device *dev, struct device_attribute *attr, const char *buf,
    + size_t count);
    +
    +static inline int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value)
    +{
    + if (!nct6775_reg_is_word_sized(data, reg))
    + value >>= 8;
    + return nct6775_write_value(data, reg, value);
    +}
    +
    +static inline umode_t nct6775_attr_mode(struct nct6775_data *data, struct attribute *attr)
    +{
    + return data->read_only ? (attr->mode & ~0222) : attr->mode;
    +}
    +
    +
    +static inline int
    +nct6775_add_attr_group(struct nct6775_data *data, const struct attribute_group *group)
    +{
    + /* Need to leave a NULL terminator at the end of data->groups */
    + if (data->num_groups == ARRAY_SIZE(data->groups) - 1)
    + return -ENOBUFS;
    +
    + data->groups[data->num_groups++] = group;
    + return 0;
    +}
    +
    +#define NCT6775_REG_BANK 0x4E
    +#define NCT6775_REG_CONFIG 0x40
    +
    +#define NCT6775_REG_FANDIV1 0x506
    +#define NCT6775_REG_FANDIV2 0x507
    +
    +#define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE 0x28
    +
    +#define FAN_ALARM_BASE 16
    +#define TEMP_ALARM_BASE 24
    +#define INTRUSION_ALARM_BASE 30
    +#define BEEP_ENABLE_BASE 15
    +
    +/*
    + * Not currently used:
    + * REG_MAN_ID has the value 0x5ca3 for all supported chips.
    + * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model.
    + * REG_MAN_ID is at port 0x4f
    + * REG_CHIP_ID is at port 0x58
    + */
    +
    +#endif /* __HWMON_NCT6775_H__ */
    --
    2.35.1
    \
     
     \ /
      Last update: 2022-03-09 02:14    [W:10.174 / U:0.040 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site