Hi Guenter,
Le 18/02/2022 à 07:58, Guenter Roeck a écrit :
Add support for Texas Instruments TMP464 and TMP468 temperature sensor
ICs.
TI's TMP464 is an I2C temperature sensor chip. This chip is similar
to TI's TMP421 chip, but with 16bit-wide registers (instead of
8bit-wide registers). The chip has one local sensor and four remote
sensors. TMP468 is similar to TMP464 but has one local and eight
remote sensors.
Originally-from: Agathe Porte <agathe.porte@xxxxxxxxx>
Cc: Agathe Porte <agathe.porte@xxxxxxxxx>
Cc: Krzysztof Adamski <krzysztof.adamski@xxxxxxxxx>
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
v4:
- Fixed reading n-factor information from devicetree
[Use of_property_read_u8 instead of of_property_read_s32 to read the
property value, and write n-factor value into the upper 8 bit of the
n-factor register]
Changing n-factor with DT seems to work:
temp2_input=38500 (nfactor=10)
temp2_input=35500 (nfactor=-10)
Driver probes just fine with this attribute set.
+static int tmp464_probe_child_from_dt(struct device *dev,
+ struct device_node *child,
+ struct tmp464_data *data)
+
+{
+ struct regmap *regmap = data->regmap;
+ u32 channel;
+ u8 nfactor;
+ s32 val;
val is not used according to the compiler, and thus should be removed
(module does not compile with -Werror)
PS: TMP464 samples will be sent by DHL today and should arrive to you on
Feb, 23rd.
Best regards,
Agathe.
