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Commit 39abe9d8 authored by Iker Perez del Palomar Sustatxa's avatar Iker Perez del Palomar Sustatxa Committed by Guenter Roeck
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hwmon: (lm75) Add support for TMP75B 



The TMP75B has a different control register, supports 12-bit
resolution and the default conversion rate is 37 Hz.

Signed-off-by: default avatarIker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent be889be7

Documentation/hwmon/lm75.rst

+4 −2
Original line number Diff line number Diff line
@@ -93,9 +93,9 @@ Supported chips: 


	       https://www.st.com/resource/en/datasheet/stlm75.pdf



  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, TMP175, TMP275

  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75B, TMP75C, TMP175, TMP275



    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75c', 'tmp275'

    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75b', 'tmp75c', 'tmp275'



    Addresses scanned: none
@@ -111,6 +111,8 @@ Supported chips: 


	       http://www.ti.com/product/tmp75



	       http://www.ti.com/product/tmp75b



	       http://www.ti.com/product/tmp75c



	       http://www.ti.com/product/tmp175

drivers/hwmon/lm75.c

+11 −0
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ 
	tmp175,

	tmp275,

	tmp75,

	tmp75b,

	tmp75c,

};
@@ -354,6 +355,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) 
		data->resolution = 12;

		data->sample_time = MSEC_PER_SEC / 2;

		break;

	case tmp75b:  /* not one-shot mode, Conversion rate 37Hz */

		clr_mask |= 1 << 15 | 0x3 << 13;

		data->resolution = 12;

		data->sample_time = MSEC_PER_SEC / 37;

		break;

	case tmp75c:

		clr_mask |= 1 << 5;		/* not one-shot mode */

		data->resolution = 12;
@@ -414,6 +420,7 @@ static const struct i2c_device_id lm75_ids[] = { 
	{ "tmp175", tmp175, },

	{ "tmp275", tmp275, },

	{ "tmp75", tmp75, },

	{ "tmp75b", tmp75b, },

	{ "tmp75c", tmp75c, },

	{ /* LIST END */ }

};
@@ -512,6 +519,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = { 
		.compatible = "ti,tmp75",

		.data = (void *)tmp75

	},

	{

		.compatible = "ti,tmp75b",

		.data = (void *)tmp75b

	},

	{

		.compatible = "ti,tmp75c",

		.data = (void *)tmp75c