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Drop ACPI mutex code
[groeck-it87] / it87.c
diff --git a/it87.c b/it87.c
index deb416c8552db8a5e980f54191d5ad94d3b5027c..43578fd5213c032d1ff00dccfbc82d8c5f90ceef 100644 (file)
--- a/it87.c
+++ b/it87.c
@@ -77,9 +77,6 @@
 
 #define DRVNAME "it87"
 
-/* Necessary API not (yet) exported in upstream kernel */
-/* #define __IT87_USE_ACPI_MUTEX */
-
 enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8732,
             it8771, it8772, it8781, it8782, it8783, it8786, it8790,
             it8792, it8603, it8607, it8613, it8620, it8622, it8625, it8628,
@@ -89,17 +86,7 @@ static unsigned short force_id;
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 
-static unsigned short blacklist = 1;
-module_param(blacklist, ushort, 0);
-MODULE_PARM_DESC(blacklist,
-                "Enable/disable blacklist (1=enable, 0=disable, default 1)");
-
 static struct platform_device *it87_pdev[2];
-static bool it87_sio4e_broken;
-#ifdef __IT87_USE_ACPI_MUTEX
-static acpi_handle it87_acpi_sio_handle;
-static char *it87_acpi_sio_mutex;
-#endif
 
 #define        REG_2E  0x2e    /* The register to read/write */
 #define        REG_4E  0x4e    /* Secondary register to read/write */
@@ -127,12 +114,6 @@ static inline int superio_inb(int ioreg, int reg)
 
        outb(reg, ioreg);
        val = inb(ioreg + 1);
-       if (it87_sio4e_broken && ioreg == 0x4e && val == 0xff) {
-               __superio_enter(ioreg);
-               outb(reg, ioreg);
-               val = inb(ioreg + 1);
-               pr_warn("Retry access 0x4e:0x%x -> 0x%x\n", reg, val);
-       }
 
        return val;
 }
@@ -156,17 +137,6 @@ static inline void superio_select(int ioreg, int ldn)
 
 static inline int superio_enter(int ioreg)
 {
-#ifdef __IT87_USE_ACPI_MUTEX
-       if (it87_acpi_sio_mutex) {
-               acpi_status status;
-
-               status = acpi_acquire_mutex(NULL, it87_acpi_sio_mutex, 0x10);
-               if (ACPI_FAILURE(status)) {
-                       pr_err("Failed to acquire ACPI mutex\n");
-                       return -EBUSY;
-               }
-       }
-#endif
        /*
         * Try to reserve ioreg and ioreg + 1 for exclusive access.
         */
@@ -177,24 +147,16 @@ static inline int superio_enter(int ioreg)
        return 0;
 
 error:
-#ifdef __IT87_USE_ACPI_MUTEX
-       if (it87_acpi_sio_mutex)
-               acpi_release_mutex(it87_acpi_sio_handle, NULL);
-#endif
        return -EBUSY;
 }
 
-static inline void superio_exit(int ioreg)
+static inline void superio_exit(int ioreg, bool doexit)
 {
-       if (!it87_sio4e_broken || ioreg != 0x4e) {
+       if (doexit) {
                outb(0x02, ioreg);
                outb(0x02, ioreg + 1);
        }
        release_region(ioreg, 2);
-#ifdef __IT87_USE_ACPI_MUTEX
-       if (it87_acpi_sio_mutex)
-               acpi_release_mutex(it87_acpi_sio_handle, NULL);
-#endif
 }
 
 /* Logical device 4 registers */
@@ -373,7 +335,6 @@ struct it87_devices {
 #define FEAT_NEWER_AUTOPWM     BIT(1)
 #define FEAT_OLD_AUTOPWM       BIT(2)
 #define FEAT_16BIT_FANS                BIT(3)
-#define FEAT_TEMP_OFFSET       BIT(4)
 #define FEAT_TEMP_PECI         BIT(5)
 #define FEAT_TEMP_OLD_PECI     BIT(6)
 #define FEAT_FAN16_CONFIG      BIT(7)  /* Need to enable 16-bit fans */
@@ -416,7 +377,7 @@ static const struct it87_devices it87_devices[] = {
        [it8716] = {
                .name = "it8716",
                .suffix = "F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+               .features = FEAT_16BIT_FANS | FEAT_VID
                  | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_PWM_FREQ2
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -425,7 +386,7 @@ static const struct it87_devices it87_devices[] = {
        [it8718] = {
                .name = "it8718",
                .suffix = "F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+               .features = FEAT_16BIT_FANS | FEAT_VID
                  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS
                  | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -435,7 +396,7 @@ static const struct it87_devices it87_devices[] = {
        [it8720] = {
                .name = "it8720",
                .suffix = "F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_VID
+               .features = FEAT_16BIT_FANS | FEAT_VID
                  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS
                  | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -446,7 +407,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8721",
                .suffix = "F",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
+                 | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
                  | FEAT_FAN16_CONFIG | FEAT_FIVE_FANS | FEAT_IN7_INTERNAL
                  | FEAT_PWM_FREQ2 | FEAT_SCALING | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -458,7 +419,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8728",
                .suffix = "F",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
+                 | FEAT_TEMP_PECI | FEAT_FIVE_FANS
                  | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_SCALING
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 6,
@@ -469,7 +430,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8732",
                .suffix = "F",
                .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
+                 | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI
                  | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_FOUR_FANS
                  | FEAT_FOUR_PWM | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -481,7 +442,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8771",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
+                 | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
                  | FEAT_PWM_FREQ2 | FEAT_SCALING | FEAT_FANCTL_ONOFF,
                                /* PECI: guesswork */
                                /* 12mV ADC (OHM) */
@@ -495,7 +456,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8772",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
+                 | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
                  | FEAT_PWM_FREQ2 | FEAT_SCALING | FEAT_FANCTL_ONOFF,
                                /* PECI (coreboot) */
                                /* 12mV ADC (HWSensors4, OHM) */
@@ -508,7 +469,7 @@ static const struct it87_devices it87_devices[] = {
        [it8781] = {
                .name = "it8781",
                .suffix = "F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
+               .features = FEAT_16BIT_FANS
                  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -518,7 +479,7 @@ static const struct it87_devices it87_devices[] = {
        [it8782] = {
                .name = "it8782",
                .suffix = "F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
+               .features = FEAT_16BIT_FANS
                  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -528,7 +489,7 @@ static const struct it87_devices it87_devices[] = {
        [it8783] = {
                .name = "it8783",
                .suffix = "E/F",
-               .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
+               .features = FEAT_16BIT_FANS
                  | FEAT_TEMP_OLD_PECI | FEAT_FAN16_CONFIG | FEAT_PWM_FREQ2
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -539,7 +500,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8786",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
+                 | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
                  | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
                .num_temp_offset = 3,
@@ -549,7 +510,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8790",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_10_9MV_ADC | FEAT_SCALING
-                 | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI
+                 | FEAT_16BIT_FANS | FEAT_TEMP_PECI
                  | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
                .num_temp_offset = 3,
@@ -559,7 +520,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8792",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_10_9MV_ADC | FEAT_SCALING
-                 | FEAT_16BIT_FANS | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI
+                 | FEAT_16BIT_FANS | FEAT_TEMP_PECI
                  | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2 | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
                .num_temp_offset = 3,
@@ -569,7 +530,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8603",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
+                 | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
                  | FEAT_AVCC3 | FEAT_PWM_FREQ2 | FEAT_SCALING,
                .num_temp_limit = 3,
                .num_temp_offset = 3,
@@ -579,7 +540,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8607",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
+                 | FEAT_TEMP_PECI | FEAT_IN7_INTERNAL
                  | FEAT_AVCC3 | FEAT_PWM_FREQ2 | FEAT_SCALING
                  | FEAT_FANCTL_ONOFF,
                .num_temp_limit = 3,
@@ -590,7 +551,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8613",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_11MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
+                 | FEAT_TEMP_PECI | FEAT_FIVE_FANS
                  | FEAT_FIVE_PWM | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2
                  | FEAT_AVCC3 | FEAT_SCALING | FEAT_NEW_TEMPMAP,
                .num_temp_limit = 6,
@@ -601,7 +562,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8620",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS
+                 | FEAT_TEMP_PECI | FEAT_SIX_FANS
                  | FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2
                  | FEAT_SIX_TEMP | FEAT_VIN3_5V | FEAT_SCALING
                  | FEAT_FANCTL_ONOFF,
@@ -613,7 +574,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8622",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_FIVE_FANS
+                 | FEAT_TEMP_PECI | FEAT_FIVE_FANS
                  | FEAT_FIVE_PWM | FEAT_IN7_INTERNAL | FEAT_PWM_FREQ2
                  | FEAT_AVCC3 | FEAT_VIN3_5V | FEAT_SCALING,
                .num_temp_limit = 3,
@@ -624,7 +585,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8625",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
+                 | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
                  | FEAT_11MV_ADC | FEAT_IN7_INTERNAL | FEAT_SIX_FANS
                  | FEAT_SIX_PWM | FEAT_BANK_SEL | FEAT_SCALING,
                .num_temp_limit = 6,
@@ -634,7 +595,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8628",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI | FEAT_SIX_FANS
+                 | FEAT_TEMP_PECI | FEAT_SIX_FANS
                  | FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2
                  | FEAT_SIX_TEMP | FEAT_SCALING | FEAT_AVCC3
                  | FEAT_FANCTL_ONOFF,
@@ -646,7 +607,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8655",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
+                 | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
                  | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_BANK_SEL,
                .num_temp_limit = 6,
                .num_temp_offset = 6,
@@ -655,7 +616,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8665",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
+                 | FEAT_AVCC3 | FEAT_NEW_TEMPMAP
                  | FEAT_10_9MV_ADC | FEAT_IN7_INTERNAL | FEAT_SIX_FANS
                  | FEAT_SIX_PWM | FEAT_BANK_SEL,
                .num_temp_limit = 6,
@@ -665,7 +626,7 @@ static const struct it87_devices it87_devices[] = {
                .name = "it8686",
                .suffix = "E",
                .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
-                 | FEAT_TEMP_OFFSET | FEAT_SIX_FANS | FEAT_NEW_TEMPMAP
+                 | FEAT_SIX_FANS | FEAT_NEW_TEMPMAP
                  | FEAT_IN7_INTERNAL | FEAT_SIX_PWM | FEAT_PWM_FREQ2
                  | FEAT_SIX_TEMP | FEAT_BANK_SEL | FEAT_SCALING | FEAT_AVCC3,
                .num_temp_limit = 6,
@@ -678,7 +639,6 @@ static const struct it87_devices it87_devices[] = {
 #define has_10_9mv_adc(data)   ((data)->features & FEAT_10_9MV_ADC)
 #define has_newer_autopwm(data)        ((data)->features & FEAT_NEWER_AUTOPWM)
 #define has_old_autopwm(data)  ((data)->features & FEAT_OLD_AUTOPWM)
-#define has_temp_offset(data)  ((data)->features & FEAT_TEMP_OFFSET)
 #define has_temp_peci(data, nr)        (((data)->features & FEAT_TEMP_PECI) && \
                                 ((data)->peci_mask & BIT(nr)))
 #define has_temp_old_peci(data, nr) \
@@ -1055,7 +1015,7 @@ static struct it87_data *it87_update_device(struct device *dev)
                        if (i >= data->num_temp_limit)
                                continue;
 
-                       if (has_temp_offset(data) && i < data->num_temp_offset)
+                       if (i < data->num_temp_offset)
                                data->temp[i][3] =
                                  it87_read_value(data,
                                                  data->REG_TEMP_OFFSET[i]);
@@ -2471,7 +2431,7 @@ static umode_t it87_temp_is_visible(struct kobject *kobj,
                return attr->mode;
        }
 
-       if (a == 5 && (!has_temp_offset(data) || i >= data->num_temp_offset))
+       if (a == 5 && i >= data->num_temp_offset)
                return 0;
 
        if (a == 6 && !data->has_beep)
@@ -2800,9 +2760,10 @@ static const struct attribute_group it87_group_auto_pwm = {
 static int __init it87_find(int sioaddr, unsigned short *address,
                            struct it87_sio_data *sio_data)
 {
-       int err;
-       u16 chip_type;
        const struct it87_devices *config;
+       bool doexit = true;
+       u16 chip_type;
+       int err;
 
        err = superio_enter(sioaddr);
        if (err)
@@ -2844,6 +2805,13 @@ static int __init it87_find(int sioaddr, unsigned short *address,
                break;
        case IT8792E_DEVID:
                sio_data->type = it8792;
+               /*
+                * Disabling configuration mode on IT8792E can result in system
+                * hang-ups and access failures to the Super-IO chip at the
+                * second SIO address. Never exit configuration mode on this
+                * chip to avoid the problem.
+                */
+               doexit = false;
                break;
        case IT8771E_DEVID:
                sio_data->type = it8771;
@@ -3040,9 +3008,16 @@ static int __init it87_find(int sioaddr, unsigned short *address,
                if (reg29 & BIT(2))
                        sio_data->skip_fan |= BIT(1);
 
-               if (sio_data->type == it8603) {
+               switch (sio_data->type) {
+               case it8603:
                        sio_data->skip_in |= BIT(5); /* No VIN5 */
                        sio_data->skip_in |= BIT(6); /* No VIN6 */
+                       break;
+               case it8607:
+                       sio_data->skip_pwm |= BIT(0);/* No fan1 */
+                       sio_data->skip_fan |= BIT(0);
+               default:
+                       break;
                }
 
                sio_data->beep_pin = superio_inb(sioaddr,
@@ -3388,7 +3363,7 @@ static int __init it87_find(int sioaddr, unsigned short *address,
                pr_info("Beeping is supported\n");
 
 exit:
-       superio_exit(sioaddr);
+       superio_exit(sioaddr, doexit);
        return err;
 }
 
@@ -3846,21 +3821,9 @@ exit_device_put:
 }
 
 struct it87_dmi_data {
-       bool sio4e_broken;      /* SIO accesses @ 0x4e are broken       */
-       char *sio_mutex;        /* SIO ACPI mutex                       */
        u8 skip_pwm;            /* pwm channels to skip for this board  */
 };
 
-/*
- * On Gigabyte AB350 and AX370 boards, accesses to the Super-IO chip
- * at address 0x4e/0x4f can result in a system hang.
- * Accesses to address 0x2e/0x2f need to be mutex protected.
- */
-static struct it87_dmi_data gigabyte_ab350_gaming = {
-       .sio4e_broken = true,
-       .sio_mutex = "\\_SB.PCI0.SBRG.SIO1.MUT0",
-};
-
 /*
  * On the Shuttle SN68PT, FAN_CTL2 is apparently not
  * connected to a fan, but to something else. One user
@@ -3874,41 +3837,6 @@ static struct it87_dmi_data nvidia_fn68pt = {
 };
 
 static const struct dmi_system_id it87_dmi_table[] __initconst = {
-       {
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
-                       DMI_MATCH(DMI_BOARD_NAME, "AB350-Gaming-CF"),
-               },
-               .driver_data = &gigabyte_ab350_gaming,
-       },
-       {
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
-                       DMI_MATCH(DMI_BOARD_NAME, "AB350-Gaming 3-CF"),
-               },
-               .driver_data = &gigabyte_ab350_gaming,
-       },
-       {
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
-                       DMI_MATCH(DMI_BOARD_NAME, "AB350M-D3H-CF"),
-               },
-               .driver_data = &gigabyte_ab350_gaming,
-       },
-       {
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
-                       DMI_MATCH(DMI_BOARD_NAME, "AX370-Gaming K7"),
-               },
-               .driver_data = &gigabyte_ab350_gaming,
-       },
-       {
-               .matches = {
-                       DMI_MATCH(DMI_SYS_VENDOR, "Gigabyte Technology Co., Ltd."),
-                       DMI_MATCH(DMI_BOARD_NAME, "AX370-Gaming 5"),
-               },
-               .driver_data = &gigabyte_ab350_gaming,
-       },
        {
                .matches = {
                        DMI_MATCH(DMI_BOARD_VENDOR, "nVIDIA"),
@@ -3932,37 +3860,11 @@ static int __init sm_it87_init(void)
        if (dmi)
                dmi_data = dmi->driver_data;
 
-       if (dmi_data) {
-               it87_sio4e_broken = dmi_data->sio4e_broken;
-#ifdef __IT87_USE_ACPI_MUTEX
-               if (dmi_data->sio_mutex) {
-                       static acpi_status status;
-
-                       status = acpi_get_handle(NULL, dmi_data->sio_mutex,
-                                                &it87_acpi_sio_handle);
-                       if (ACPI_SUCCESS(status)) {
-                               it87_acpi_sio_mutex = dmi_data->sio_mutex;
-                               pr_debug("Found ACPI SIO mutex %s\n",
-                                        dmi_data->sio_mutex);
-                       } else {
-                               pr_warn("ACPI SIO mutex %s not found\n",
-                                       dmi_data->sio_mutex);
-                       }
-               }
-#endif /* __IT87_USE_ACPI_MUTEX */
-       }
-
        err = platform_driver_register(&it87_driver);
        if (err)
                return err;
 
        for (i = 0; i < ARRAY_SIZE(sioaddr); i++) {
-               /*
-                * Accessing the second Super-IO chip can result in board
-                * hangs. Disable until we figure out what is going on.
-                */
-               if (blacklist && it87_sio4e_broken && sioaddr[i] == 0x4e)
-                       continue;
                memset(&sio_data, 0, sizeof(struct it87_sio_data));
                isa_address = 0;
                err = it87_find(sioaddr[i], &isa_address, &sio_data);
Cloned from https://github.com/groeck/it87.git