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authorDan Robertson <dan@dlrobertson.com>2019-09-05 04:45:54 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-27 16:51:12 +0300
commit16a9af68d48cc51501e2a780fc2ffbbf3690c4ce (patch)
tree5488cdc259ecfc2ff8676c158c392412cce88d12 /drivers/hwmon
parentf91139e250fcbf294b095d53497c7d8da8d6c62b (diff)
downloadlinux-16a9af68d48cc51501e2a780fc2ffbbf3690c4ce.tar.xz
hwmon: (shtc1) fix shtc1 and shtw1 id mask
[ Upstream commit fdc7d8e829ec755c5cfb2f5a8d8c0cdfb664f895 ] Fix an error in the bitmaskfor the shtc1 and shtw1 bitmask used to retrieve the chip ID from the ID register. See section 5.7 of the shtw1 or shtc1 datasheet for details. Fixes: 1a539d372edd9832444e7a3daa710c444c014dc9 ("hwmon: add support for Sensirion SHTC1 sensor") Signed-off-by: Dan Robertson <dan@dlrobertson.com> Link: https://lore.kernel.org/r/20190905014554.21658-3-dan@dlrobertson.com [groeck: Reordered to be first in series and adjusted accordingly] Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/hwmon')
-rw-r--r--drivers/hwmon/shtc1.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/hwmon/shtc1.c b/drivers/hwmon/shtc1.c
index decd7df995ab..2a18539591ea 100644
--- a/drivers/hwmon/shtc1.c
+++ b/drivers/hwmon/shtc1.c
@@ -38,7 +38,7 @@ static const unsigned char shtc1_cmd_read_id_reg[] = { 0xef, 0xc8 };
/* constants for reading the ID register */
#define SHTC1_ID 0x07
-#define SHTC1_ID_REG_MASK 0x1f
+#define SHTC1_ID_REG_MASK 0x3f
/* delays for non-blocking i2c commands, both in us */
#define SHTC1_NONBLOCKING_WAIT_TIME_HPM 14400