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Commit 54ce3a0d authored by Joseph McNally's avatar Joseph McNally Committed by Guenter Roeck
Browse files

hwmon: (ntc_thermistor) Add support for ncpXXxh103 



This patch adds support for the Murata NCP15XH103 thermistor series.

Signed-off-by: default avatarJoseph McNally <jmcna06@gmail.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 92417dad

Documentation/devicetree/bindings/hwmon/ntc_thermistor.txt

+1 −0
Original line number Diff line number Diff line
@@ -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"

Documentation/hwmon/ntc_thermistor

+2 −2
Original line number Diff line number Diff line
@@ -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:

drivers/hwmon/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -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.

drivers/hwmon/ntc_thermistor.c

+44 −0
Original line number Diff line number Diff line
@@ -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);

include/linux/platform_data/ntc_thermistor.h

+1 −0
Original line number Diff line number Diff line
@@ -28,6 +28,7 @@ enum ntc_thermistor_type { 
	TYPE_NCPXXWL333,

	TYPE_B57330V2103,

	TYPE_NCPXXWF104,

	TYPE_NCPXXXH103,

};



struct ntc_thermistor_platform_data {