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hwmon: (shtc1) fix shtc1 and shtw1 id mask
author
Dan Robertson
<dan@dlrobertson.com>
Thu, 5 Sep 2019 01:45:54 +0000
(
01:45
+0000)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Mon, 27 Jan 2020 13:46:46 +0000
(14:46 +0100)
[ 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>
drivers/hwmon/shtc1.c
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diff --git
a/drivers/hwmon/shtc1.c
b/drivers/hwmon/shtc1.c
index decd7df995abfa2b40381b7b1be251051b6023e5..2a18539591eaffec4f6e2c70e0a0a313ca77ad4f 100644
(file)
--- 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 0x
1
f
+#define SHTC1_ID_REG_MASK 0x
3
f
/* delays for non-blocking i2c commands, both in us */
#define SHTC1_NONBLOCKING_WAIT_TIME_HPM 14400