Murata Manufacturing Co., Ltd is the vendor for
NTC (Negative Temperature coefficient) based Thermistors.
But, the driver extensively uses "NTC" as the vendor name.
This patch corrects the vendor name also updates the
compatibility strings according to the vendor-prefix.txt
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@xxxxxxxxxxx>
Cc: Guenter Roeck <linux@xxxxxxxxxxxx>
---
This changes is needed for the following reasons
1. The vendor prefix "ntc" is not defined in vendor-prefixes.txt
Thus, giving an error when checked with scripts/checkpatch.pl
2. Murata Manufacturing Co., Ltd. Is the vendor for the
NTC (Negative Temperature Coefficient) based thermistors.
Hence, "murata" is the right vendor-prefix, Not "ntc".
3. NTC is a technology used, But the prefix "ntc" is wrongly
and heavily used in the driver and the documentation.
.../devicetree/bindings/arm/samsung/exynos-adc.txt | 2 +-
.../devicetree/bindings/hwmon/ntc_thermistor.txt | 12 ++++++------
Documentation/hwmon/ntc_thermistor | 8 ++++----
drivers/hwmon/Kconfig | 5 +++--
drivers/hwmon/ntc_thermistor.c | 12 ++++++------
5 files changed, 20 insertions(+), 19 deletions(-)
diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
index 5d49f2b..832fe8c 100644
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
@@ -48,7 +48,7 @@ adc@12D10000 {
/* NTC thermistor is a hwmon device */
ncp15wb473@0 {
- compatible = "ntc,ncp15wb473";
+ compatible = "murata,ncp15wb473";
pullup-uv = <1800000>;
pullup-ohm = <47000>;
pulldown-ohm = <0>;
diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
index c6f6667..4e9f344 100644
--- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
+++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
@@ -3,11 +3,11 @@ NTC Thermistor hwmon sensors
Requires node properties:
- "compatible" value : one of
- "ntc,ncp15wb473"
- "ntc,ncp18wb473"
- "ntc,ncp21wb473"
- "ntc,ncp03wb473"
- "ntc,ncp15wl333"
+ "murata,ncp15wb473"
+ "murata,ncp18wb473"
+ "murata,ncp21wb473"
+ "murata,ncp03wb473"
+ "murata,ncp15wl333"
- "pullup-uv" Pull up voltage in micro volts
- "pullup-ohm" Pull up resistor value in ohms
- "pulldown-ohm" Pull down resistor value in ohms
@@ -21,7 +21,7 @@ Read more about iio bindings at
Example:
ncp15wb473@0 {
- compatible = "ntc,ncp15wb473";
+ compatible = "murata,ncp15wb473";
pullup-uv = <1800000>;
pullup-ohm = <47000>;
pulldown-ohm = <0>;
diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor
index 3bfda94..057b770 100644
--- a/Documentation/hwmon/ntc_thermistor
+++ b/Documentation/hwmon/ntc_thermistor
@@ -1,7 +1,7 @@
Kernel driver ntc_thermistor
=================
-Supported thermistors:
+Supported thermistors from Murata:
* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333
Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333'
Datasheet: Publicly available at Murata
@@ -15,9 +15,9 @@ Authors:
Description
-----------
-The NTC thermistor is a simple thermistor that requires users to provide the
-resistance and lookup the corresponding compensation table to get the
-temperature input.
+The NTC (Negative Temperature Coefficient) thermistor is a simple thermistor
+that requires users to provide the resistance and lookup the corresponding
+compensation table to get the temperature input.
The NTC driver provides lookup tables with a linear approximation function
and four circuit models with an option not to use any of the four models.
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 08531a1..154851b 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1052,7 +1052,7 @@ config SENSORS_PC87427
will be called pc87427.
config SENSORS_NTC_THERMISTOR
- tristate "NTC thermistor support"
+ tristate "NTC based thermistor support from Murata"
depends on !OF || IIO=n || IIO
help
This driver supports NTC thermistors sensor reading and its
@@ -1060,7 +1060,8 @@ config SENSORS_NTC_THERMISTOR
send notifications about the temperature.
Currently, this driver supports
- NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333.
+ NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333
+ from Murata.
This driver can also be built as a module. If so, the module
will be called ntc-thermistor.
diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c
index e76feb86..6c38fc8 100644
--- a/drivers/hwmon/ntc_thermistor.c
+++ b/drivers/hwmon/ntc_thermistor.c
@@ -163,15 +163,15 @@ static int ntc_adc_iio_read(struct ntc_thermistor_platform_data *pdata)
}
static const struct of_device_id ntc_match[] = {
- { .compatible = "ntc,ncp15wb473",
+ { .compatible = "murata,ncp15wb473",
.data = &ntc_thermistor_id[0] },
- { .compatible = "ntc,ncp18wb473",
+ { .compatible = "murata,ncp18wb473",
.data = &ntc_thermistor_id[1] },
- { .compatible = "ntc,ncp21wb473",
+ { .compatible = "murata,ncp21wb473",
.data = &ntc_thermistor_id[2] },
- { .compatible = "ntc,ncp03wb473",
+ { .compatible = "murata,ncp03wb473",
.data = &ntc_thermistor_id[3] },
- { .compatible = "ntc,ncp15wl333",
+ { .compatible = "murata,ncp15wl333",
.data = &ntc_thermistor_id[4] },
{ },
};
@@ -534,7 +534,7 @@ static struct platform_driver ntc_thermistor_driver = {
module_platform_driver(ntc_thermistor_driver);
-MODULE_DESCRIPTION("NTC Thermistor Driver");
+MODULE_DESCRIPTION("NTC based Thermistor Driver from Murata");
MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:ntc-thermistor");
--
1.7.9.5
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