diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2015-02-06 18:55:36 -0800 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2015-03-15 08:54:18 -0700 |
| commit | 25cdd99deb927c2753759ead21710303c499a4e0 (patch) | |
| tree | cec61ccd6659b31070a26053ffe4a9dbf2e591d0 | |
| parent | d2a14ea51a4d7e506b2ebac2c57a32ad577ed693 (diff) | |
| download | linux-25cdd99deb927c2753759ead21710303c499a4e0.tar.bz2 | |
hwmon: (nct6775) Enable auxiliary fan monitoring on ASRock Z77 Pro4-M
Auxiliary fan monitoring is not enabled on ASRock Z77 Pro4-M
with BIOS version 2.00 if booted in UEFI Ultra-FastBoot mode.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/nct6775.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 0445a52379e7..4fcb48103299 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -57,6 +57,7 @@ #include <linux/err.h> #include <linux/mutex.h> #include <linux/acpi.h> +#include <linux/dmi.h> #include <linux/io.h> #include "lm75.h" @@ -3199,6 +3200,26 @@ nct6775_check_fan_inputs(struct nct6775_data *data) pwm6pin = false; } else if (data->kind == nct6776) { bool gpok = superio_inb(sioreg, 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; + superio_outb(sioreg, SIO_REG_ENABLE, + data->sio_reg_enable); + } + } + } if (data->sio_reg_enable & 0x80) fan3pin = gpok; |