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authorGuenter Roeck <linux@roeck-us.net>2012-01-27 17:43:59 +0400
committerGuenter Roeck <guenter.roeck@ericsson.com>2012-02-05 06:08:23 +0400
commit585c0fd8216e0c9f98e2434092af7ec0f999522d (patch)
tree77da351a59212e1752aee600c0db0017bc3da79f /drivers/hwmon
parent62aa2b537c6f5957afd98e29f96897419ed5ebab (diff)
downloadlinux-585c0fd8216e0c9f98e2434092af7ec0f999522d.tar.xz
hwmon: (w83627ehf) Fix number of fans for NCT6776F
NCT6776F can select fan input pins for fans 3 to 5 with a secondary set of chip register bits. Check that second set of bits in addition to the first set to detect if fans 3..5 are monitored. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # 3.0+ Acked-by: Jean Delvare <khali@linux-fr.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/w83627ehf.c23
1 files changed, 20 insertions, 3 deletions
diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
index 2dfae7d7cc5b..4d383e7e051d 100644
--- a/drivers/hwmon/w83627ehf.c
+++ b/drivers/hwmon/w83627ehf.c
@@ -1920,9 +1920,26 @@ w83627ehf_check_fan_inputs(const struct w83627ehf_sio_data *sio_data,
fan4min = 0;
fan5pin = 0;
} else if (sio_data->kind == nct6776) {
- fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
- fan4pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x01);
- fan5pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x02);
+ bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80;
+
+ superio_select(sio_data->sioreg, W83627EHF_LD_HWM);
+ regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE);
+
+ if (regval & 0x80)
+ fan3pin = gpok;
+ else
+ fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40);
+
+ if (regval & 0x40)
+ fan4pin = gpok;
+ else
+ fan4pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x01);
+
+ if (regval & 0x20)
+ fan5pin = gpok;
+ else
+ fan5pin = !!(superio_inb(sio_data->sioreg, 0x1C) & 0x02);
+
fan4min = fan4pin;
} else if (sio_data->kind == w83667hg || sio_data->kind == w83667hg_b) {
fan3pin = 1;