* [PATCH AUTOSEL 4.20 09/52] hwmon: (nct6775) Fix fan6 detection for NCT6793D
[not found] <20190311195516.137772-1-sashal@kernel.org>
@ 2019-03-11 19:54 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2019-03-11 19:54 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Guenter Roeck, Chris Siebenmann, Sasha Levin, linux-hwmon
From: Guenter Roeck <linux@roeck-us.net>
[ Upstream commit 2a2ec4aa0577ec0b7df2d1bde5c84ed39a8637cb ]
Commit 2d99925a15b6 ("hwmon: (nct6775) Separate fan/pwm configuration
detection for NCT6793D") accidentally removed part of the code detecting
if fan6 is enabled or not. As result, fan6 is no longer detected on Asus
PRIME Z370-A. Restore the missing detection code.
Fixes: 2d99925a15b6 ("hwmon: (nct6775) Separate fan/pwm configuration detection for NCT6793D")
Reported-by: Chris Siebenmann <cks@cs.toronto.edu>
Cc: Chris Siebenmann <cks@cs.toronto.edu>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/hwmon/nct6775.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 4adec4ab7d06..59ee01f3d022 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -3594,7 +3594,8 @@ nct6775_check_fan_inputs(struct nct6775_data *data)
fan5pin |= cr1b & BIT(5);
fan5pin |= creb & BIT(5);
- fan6pin = creb & BIT(3);
+ fan6pin = !dsw_en && (cr2d & BIT(1));
+ fan6pin |= creb & BIT(3);
pwm5pin |= cr2d & BIT(7);
pwm5pin |= (creb & BIT(4)) && !(cr2a & BIT(0));
--
2.19.1
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