From c81ac5970095a62139f4904e638c304b220e76e5 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 21 Jan 2011 09:42:17 +0100 Subject: [PATCH] hwmon: (w83627ehf) Fix max_output and step_output readings [extraction from commit da2e025590cf7038440132d4bbc967a579b11112 upstream] The value of max_output and step_output registers isn't read from the respective registers. As a result, zero values are returned to the user through the respective sysfs attributes, instead of the actual fan control settings. The problem is fixed by updating the fan max output and fan step output information from data in registers. Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare Signed-off-by: Paul Gortmaker --- drivers/hwmon/w83627ehf.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 0dcaba9b7189..dc53e6180455 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -524,7 +524,7 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) } } - for (i = 0; i < 4; i++) { + for (i = 0; i < data->pwm_num; i++) { /* pwmcfg, tolerance mapped for i=0, i=1 to same reg */ if (i != 1) { pwmcfg = w83627ehf_read_value(data, @@ -546,6 +546,17 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) W83627EHF_REG_FAN_STOP_OUTPUT[i]); data->fan_stop_time[i] = w83627ehf_read_value(data, W83627EHF_REG_FAN_STOP_TIME[i]); + + if (W83627EHF_REG_FAN_MAX_OUTPUT[i] != 0xff) + data->fan_max_output[i] = + w83627ehf_read_value(data, + W83627EHF_REG_FAN_MAX_OUTPUT[i]); + + if (W83627EHF_REG_FAN_STEP_OUTPUT[i] != 0xff) + data->fan_step_output[i] = + w83627ehf_read_value(data, + W83627EHF_REG_FAN_STEP_OUTPUT[i]); + data->target_temp[i] = w83627ehf_read_value(data, W83627EHF_REG_TARGET[i]) & -- 2.39.5