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authorGuenter Roeck <linux@roeck-us.net>2015-02-24 17:32:40 +0300
committerGuenter Roeck <linux@roeck-us.net>2015-03-09 19:59:35 +0300
commitfd044868e8056720b52d41bb61da0fbf7f04fd50 (patch)
tree4440674d809de22cfa4516570287294e420141d5 /drivers/hwmon
parent0ea2f1db8e6888029b781bbaf68547e2e0996402 (diff)
downloadlinux-fd044868e8056720b52d41bb61da0fbf7f04fd50.tar.xz
hwmon: (it87) Don't configure 16 bit fan counters it not necessary
On IT8728F, IT8771E, and IT8772E, fans counters are always 16 bit and don't need to be configured for it. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/it87.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c
index ed25e4bab978..e8cbefb9c96d 100644
--- a/drivers/hwmon/it87.c
+++ b/drivers/hwmon/it87.c
@@ -2463,9 +2463,12 @@ static void it87_init_device(struct platform_device *pdev)
}
data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
- /* Set tachometers to 16-bit mode if needed, IT8603E (and IT8728F?)
- * has it by default */
- if (has_16bit_fans(data) && data->type != it8603) {
+ /*
+ * Set tachometers to 16-bit mode if needed. IT8603E, IT8728F,
+ * IT8771E (guesswork), and IT8772E have it by default.
+ */
+ if (has_16bit_fans(data) && data->type != it8603 && data->type != it8728
+ && data->type != it8771 && data->type != it8772) {
tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
if (~tmp & 0x07 & data->has_fan) {
dev_dbg(&pdev->dev,