From 4a2d78822fdf1556dfbbfaedd71182fe5b562194 Mon Sep 17 00:00:00 2001 From: "amy.shih" Date: Mon, 18 Jun 2085 15:57:19 +0000 Subject: [PATCH] hwmon: (nct7904) Fix incorrect temperature limitation register setting of LTD. According to kernel hwmon sysfs-interface documentation, temperature critical max value, typically greater than corresponding temp_max values. Thus, reads the LTD_HV_HL (LTD HIGH VALUE HIGH LIMITATION) and LTD_LV_HL (LTD LOW VALUE HIGH LIMITATION) for case hwmon_temp_crit and hwmon_temp_crit_hyst. Reads the LTD_HV_LL (HIGH VALUE LOW LIMITATION) and LTD_LV_LL (LOW VALUE LOW LIMITATION) for case hwmon_temp_max and hwmon_temp_max_hyst. Signed-off-by: amy.shih Link: https://lore.kernel.org/r/20850618155720.24857-1-Amy.Shih@advantech.com.tw Signed-off-by: Guenter Roeck --- drivers/hwmon/nct7904.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/hwmon/nct7904.c b/drivers/hwmon/nct7904.c index 76372f20d71a..ce688ab4fce2 100644 --- a/drivers/hwmon/nct7904.c +++ b/drivers/hwmon/nct7904.c @@ -398,22 +398,22 @@ static int nct7904_read_temp(struct device *dev, u32 attr, int channel, } return 0; case hwmon_temp_max: - reg1 = LTD_HV_HL_REG; + reg1 = LTD_HV_LL_REG; reg2 = TEMP_CH1_W_REG; reg3 = DTS_T_CPU1_W_REG; break; case hwmon_temp_max_hyst: - reg1 = LTD_LV_HL_REG; + reg1 = LTD_LV_LL_REG; reg2 = TEMP_CH1_WH_REG; reg3 = DTS_T_CPU1_WH_REG; break; case hwmon_temp_crit: - reg1 = LTD_HV_LL_REG; + reg1 = LTD_HV_HL_REG; reg2 = TEMP_CH1_C_REG; reg3 = DTS_T_CPU1_C_REG; break; case hwmon_temp_crit_hyst: - reg1 = LTD_LV_LL_REG; + reg1 = LTD_LV_HL_REG; reg2 = TEMP_CH1_CH_REG; reg3 = DTS_T_CPU1_CH_REG; break; @@ -507,22 +507,22 @@ static int nct7904_write_temp(struct device *dev, u32 attr, int channel, switch (attr) { case hwmon_temp_max: - reg1 = LTD_HV_HL_REG; + reg1 = LTD_HV_LL_REG; reg2 = TEMP_CH1_W_REG; reg3 = DTS_T_CPU1_W_REG; break; case hwmon_temp_max_hyst: - reg1 = LTD_LV_HL_REG; + reg1 = LTD_LV_LL_REG; reg2 = TEMP_CH1_WH_REG; reg3 = DTS_T_CPU1_WH_REG; break; case hwmon_temp_crit: - reg1 = LTD_HV_LL_REG; + reg1 = LTD_HV_HL_REG; reg2 = TEMP_CH1_C_REG; reg3 = DTS_T_CPU1_C_REG; break; case hwmon_temp_crit_hyst: - reg1 = LTD_LV_LL_REG; + reg1 = LTD_LV_HL_REG; reg2 = TEMP_CH1_CH_REG; reg3 = DTS_T_CPU1_CH_REG; break; -- 2.30.2