hwmon: (ntc_thermistor) Add support for ncpXXwf104

This patch adds support for the ntc thermistor NCPXXWF104 series.

Cc: Jean Delvare <jdelvare@suse.de>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

5 files changed, 52 insertions, 4 deletions

diff --git a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
index fcca8e744f41..a04a80f9cc70 100644
--- a/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
+++ b/Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt
@@ -9,6 +9,7 @@ Requires node properties:
         "murata,ncp21wb473"
         "murata,ncp03wb473"
         "murata,ncp15wl333"
+        "murata,ncp03wf104"
 
 /* Usage of vendor name "ntc" is deprecated */
 <DEPRECATED>    "ntc,ncp15wb473"
diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor
index c5e05e2900a3..1d4cc847c6fe 100644
--- a/Documentation/hwmon/ntc_thermistor
+++ b/Documentation/hwmon/ntc_thermistor
@@ -2,8 +2,10 @@ Kernel driver ntc_thermistor
 =================
 
 Supported thermistors from Murata:
-* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333
-  Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333'
+* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473,
+  NCP15WL333, NCP03WF104
+  Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473',
+  'ncp15wl333', 'ncp03wf104'
   Datasheet: Publicly available at Murata
 
 Supported thermistors from EPCOS:
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index 25d9e72627e9..4542ffc5468a 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -1106,8 +1106,8 @@ config SENSORS_NTC_THERMISTOR
           send notifications about the temperature.
 
           Currently, this driver supports
-          NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, and NCP15WL333
-          from Murata and B57330V2103 from EPCOS.
+          NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333,
+          and NCP03WF104 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 68800115876b..fca92912269e 100644
--- a/drivers/hwmon/ntc_thermistor.c
+++ b/drivers/hwmon/ntc_thermistor.c
@@ -53,6 +53,7 @@ static const struct platform_device_id ntc_thermistor_id[] = {
         { "ncp03wb473", TYPE_NCPXXWB473 },
         { "ncp15wl333", TYPE_NCPXXWL333 },
         { "b57330v2103", TYPE_B57330V2103},
+        { "ncp03wf104", TYPE_NCPXXWF104 },
         { },
 };
 
@@ -135,6 +136,43 @@ static const struct ntc_compensation ncpXXwl333[] = {
         { .temp_c       = 125, .ohm     = 707 },
 };
 
+static const struct ntc_compensation ncpXXwf104[] = {
+        { .temp_c       = -40, .ohm     = 4397119 },
+        { .temp_c       = -35, .ohm     = 3088599 },
+        { .temp_c       = -30, .ohm     = 2197225 },
+        { .temp_c       = -25, .ohm     = 1581881 },
+        { .temp_c       = -20, .ohm     = 1151037 },
+        { .temp_c       = -15, .ohm     = 846579 },
+        { .temp_c       = -10, .ohm     = 628988 },
+        { .temp_c       = -5, .ohm      = 471632 },
+        { .temp_c       = 0, .ohm       = 357012 },
+        { .temp_c       = 5, .ohm       = 272500 },
+        { .temp_c       = 10, .ohm      = 209710 },
+        { .temp_c       = 15, .ohm      = 162651 },
+        { .temp_c       = 20, .ohm      = 127080 },
+        { .temp_c       = 25, .ohm      = 100000 },
+        { .temp_c       = 30, .ohm      = 79222 },
+        { .temp_c       = 35, .ohm      = 63167 },
+        { .temp_c       = 40, .ohm      = 50677 },
+        { .temp_c       = 45, .ohm      = 40904 },
+        { .temp_c       = 50, .ohm      = 33195 },
+        { .temp_c       = 55, .ohm      = 27091 },
+        { .temp_c       = 60, .ohm      = 22224 },
+        { .temp_c       = 65, .ohm      = 18323 },
+        { .temp_c       = 70, .ohm      = 15184 },
+        { .temp_c       = 75, .ohm      = 12635 },
+        { .temp_c       = 80, .ohm      = 10566 },
+        { .temp_c       = 85, .ohm      = 8873 },
+        { .temp_c       = 90, .ohm      = 7481 },
+        { .temp_c       = 95, .ohm      = 6337 },
+        { .temp_c       = 100, .ohm     = 5384 },
+        { .temp_c       = 105, .ohm     = 4594 },
+        { .temp_c       = 110, .ohm     = 3934 },
+        { .temp_c       = 115, .ohm     = 3380 },
+        { .temp_c       = 120, .ohm     = 2916 },
+        { .temp_c       = 125, .ohm     = 2522 },
+};
+
 /*
  * The following compensation table is from the specification of EPCOS NTC
  * Thermistors Datasheet
@@ -219,6 +257,8 @@ static const struct of_device_id ntc_match[] = {
                 .data = &ntc_thermistor_id[4] },
         { .compatible = "epcos,b57330v2103",
                 .data = &ntc_thermistor_id[5]},
+        { .compatible = "murata,ncp03wf104",
+                .data = &ntc_thermistor_id[6] },
 
         /* Usage of vendor name "ntc" is deprecated */
         { .compatible = "ntc,ncp15wb473",
@@ -567,6 +607,10 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
                 data->comp = b57330v2103;
                 data->n_comp = ARRAY_SIZE(b57330v2103);
                 break;
+        case TYPE_NCPXXWF104:
+                data->comp = ncpXXwf104;
+                data->n_comp = ARRAY_SIZE(ncpXXwf104);
+                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 0a6de4ca4930..aed170588b74 100644
--- a/include/linux/platform_data/ntc_thermistor.h
+++ b/include/linux/platform_data/ntc_thermistor.h
@@ -27,6 +27,7 @@ enum ntc_thermistor_type {
         TYPE_NCPXXWB473,
         TYPE_NCPXXWL333,
         TYPE_B57330V2103,
+        TYPE_NCPXXWF104,
 };
 
 struct ntc_thermistor_platform_data {