Adding upstream version 5.10.209.upstream/5.10.209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 48 insertions, 0 deletions

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+Kernel driver lm95245
+=====================
+
+Supported chips:
+
+  * TI LM95235
+
+    Addresses scanned: I2C 0x18, 0x29, 0x4c
+
+    Datasheet: Publicly available at the TI website
+
+	       https://www.ti.com/lit/ds/symlink/lm95235.pdf
+
+  * TI / National Semiconductor LM95245
+
+    Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d
+
+    Datasheet: Publicly available at the TI website
+
+	       https://www.ti.com/lit/ds/symlink/lm95245.pdf
+
+Author: Alexander Stein <alexander.stein@systec-electronic.com>
+
+Description
+-----------
+
+LM95235 and LM95245 are 11-bit digital temperature sensors with a 2-wire System
+Management Bus (SMBus) interface and TruTherm technology that can monitor
+the temperature of a remote diode as well as its own temperature.
+The chips can be used to very accurately monitor the temperature of
+external devices such as microprocessors.
+
+All temperature values are given in millidegrees Celsius. Local temperature
+is given within a range of -127 to +127.875 degrees. Remote temperatures are
+given within a range of -127 to +255 degrees. Resolution depends on
+temperature input and range.
+
+Each sensor has its own critical limit. Additionally, there is a relative
+hysteresis value common to both critical limits. To make life easier to
+user-space applications, two absolute values are exported, one for each
+channel, but these values are of course linked. Only the local hysteresis
+can be set from user-space, and the same delta applies to the remote
+hysteresis.
+
+The lm95245 driver can change its update interval to a fixed set of values.
+It will round up to the next selectable interval. See the datasheet for exact
+values. Reading sensor values more often will do no harm, but will return
+'old' values.