hwmon: (ntc_thermistor) Add support for ncpXXxh103

This patch adds support for the Murata NCP15XH103 thermistor series.

Signed-off-by: Joseph McNally <jmcna06@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
index a04a80f..c3b9c4c 100644 (file)
--- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
+++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
@@ -10,6 +10,7 @@ Requires node properties:
        "murata,ncp03wb473"
        "murata,ncp15wl333"
        "murata,ncp03wf104"
+       "murata,ncp15xh103"
 
 /* Usage of vendor name "ntc" is deprecated */
 <DEPRECATED>   "ntc,ncp15wb473"

diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor
index 1d4cc84..8b9ff23 100644 (file)
--- a/Documentation/hwmon/ntc_thermistor
+++ b/Documentation/hwmon/ntc_thermistor
@@ -3,9 +3,9 @@ Kernel driver ntc_thermistor
 
 Supported thermistors from Murata:
 * Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473,
-  NCP15WL333, NCP03WF104
+  NCP15WL333, NCP03WF104, NCP15XH103
   Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473',
-  'ncp15wl333', 'ncp03wf104'
+  'ncp15wl333', 'ncp03wf104', 'ncp15xh103'
   Datasheet: Publicly available at Murata
 
 Supported thermistors from EPCOS:

diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 852c8a8..7a437ce 100644 (file)
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1141,7 +1141,7 @@ config SENSORS_NTC_THERMISTOR
 
          Currently, this driver supports
          NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333,
-         and NCP03WF104 from Murata and B57330V2103 from EPCOS.
+         NCP03WF104 and NCP15XH103 from Murata and B57330V2103 from EPCOS.
 
          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 feed306..faa6e8d 100644 (file)
--- a/drivers/hwmon/ntc_thermistor.c
+++ b/drivers/hwmon/ntc_thermistor.c
@@ -54,6 +54,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
        { "ncp15wl333", TYPE_NCPXXWL333 },
        { "b57330v2103", TYPE_B57330V2103},
        { "ncp03wf104", TYPE_NCPXXWF104 },
+       { "ncp15xh103", TYPE_NCPXXXH103 },
        { },
 };
 
@@ -173,6 +174,43 @@ static const struct ntc_compensation ncpXXwf104[] = {
        { .temp_c       = 125, .ohm     = 2522 },
 };
 
+static const struct ntc_compensation ncpXXxh103[] = {
+       { .temp_c       = -40, .ohm     = 247565 },
+       { .temp_c       = -35, .ohm     = 181742 },
+       { .temp_c       = -30, .ohm     = 135128 },
+       { .temp_c       = -25, .ohm     = 101678 },
+       { .temp_c       = -20, .ohm     = 77373 },
+       { .temp_c       = -15, .ohm     = 59504 },
+       { .temp_c       = -10, .ohm     = 46222 },
+       { .temp_c       = -5, .ohm      = 36244 },
+       { .temp_c       = 0, .ohm       = 28674 },
+       { .temp_c       = 5, .ohm       = 22878 },
+       { .temp_c       = 10, .ohm      = 18399 },
+       { .temp_c       = 15, .ohm      = 14910 },
+       { .temp_c       = 20, .ohm      = 12169 },
+       { .temp_c       = 25, .ohm      = 10000 },
+       { .temp_c       = 30, .ohm      = 8271 },
+       { .temp_c       = 35, .ohm      = 6883 },
+       { .temp_c       = 40, .ohm      = 5762 },
+       { .temp_c       = 45, .ohm      = 4851 },
+       { .temp_c       = 50, .ohm      = 4105 },
+       { .temp_c       = 55, .ohm      = 3492 },
+       { .temp_c       = 60, .ohm      = 2985 },
+       { .temp_c       = 65, .ohm      = 2563 },
+       { .temp_c       = 70, .ohm      = 2211 },
+       { .temp_c       = 75, .ohm      = 1915 },
+       { .temp_c       = 80, .ohm      = 1666 },
+       { .temp_c       = 85, .ohm      = 1454 },
+       { .temp_c       = 90, .ohm      = 1275 },
+       { .temp_c       = 95, .ohm      = 1121 },
+       { .temp_c       = 100, .ohm     = 990 },
+       { .temp_c       = 105, .ohm     = 876 },
+       { .temp_c       = 110, .ohm     = 779 },
+       { .temp_c       = 115, .ohm     = 694 },
+       { .temp_c       = 120, .ohm     = 620 },
+       { .temp_c       = 125, .ohm     = 556 },
+};
+
 /*
  * The following compensation table is from the specification of EPCOS NTC
  * Thermistors Datasheet
@@ -260,6 +298,8 @@ static const struct of_device_id ntc_match[] = {
                .data = &ntc_thermistor_id[5]},
        { .compatible = "murata,ncp03wf104",
                .data = &ntc_thermistor_id[6] },
+       { .compatible = "murata,ncp15xh103",
+               .data = &ntc_thermistor_id[7] },
 
        /* Usage of vendor name "ntc" is deprecated */
        { .compatible = "ntc,ncp15wb473",
@@ -609,6 +649,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
                data->comp = ncpXXwf104;
                data->n_comp = ARRAY_SIZE(ncpXXwf104);
                break;
+       case TYPE_NCPXXXH103:
+               data->comp = ncpXXxh103;
+               data->n_comp = ARRAY_SIZE(ncpXXxh103);
+               break;
        default:
                dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
                                pdev_id->driver_data, pdev_id->name);

diff --git a/include/linux/platform_data/ntc_thermistor.h b/include/linux/platform_data/ntc_thermistor.h
index aed1705..698d0d5 100644 (file)
--- a/include/linux/platform_data/ntc_thermistor.h
+++ b/include/linux/platform_data/ntc_thermistor.h
@@ -28,6 +28,7 @@ enum ntc_thermistor_type {
        TYPE_NCPXXWL333,
        TYPE_B57330V2103,
        TYPE_NCPXXWF104,
+       TYPE_NCPXXXH103,
 };
 
 struct ntc_thermistor_platform_data {