Commit 557c7ffa authored by Daniel Mack's avatar Daniel Mack Committed by Guenter Roeck
Browse files

hwmon: (lm75) add support for PCT2075 

The NXP PCT2075 is largely compatible with other chips already supported
by the LM75 driver. It uses an 11-bit resolution and defaults to 100 ms
sampling period. The datasheet is here:

  https://www.nxp.com/docs/en/data-sheet/PCT2075.pdf



Signed-off-by: default avatarDaniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20190711124504.7580-2-daniel@zonque.org


[groeck: Documentation update]
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 5ac6badc

Documentation/hwmon/lm75.rst

+4 −2
Original line number Diff line number Diff line
@@ -119,9 +119,9 @@ Supported chips: 


	       http://www.ti.com/product/tmp275



  * NXP LM75B

  * NXP LM75B, PCT2075



    Prefix: 'lm75b'

    Prefix: 'lm75b', 'pct2075'



    Addresses scanned: none
@@ -129,6 +129,8 @@ Supported chips: 


	       http://www.nxp.com/documents/data_sheet/LM75B.pdf



               http://www.nxp.com/docs/en/data-sheet/PCT2075.pdf



Author: Frodo Looijaard <frodol@dds.nl>



Description

drivers/hwmon/lm75.c

+10 −0
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ enum lm75_type { /* keep sorted in alphabetical order */ 
	max6626,

	max31725,

	mcp980x,

	pct2075,

	stds75,

	stlm75,

	tcn75,
@@ -317,6 +318,10 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id) 
		data->resolution = 9;

		data->sample_time = MSEC_PER_SEC / 8;

		break;

	case pct2075:

		data->resolution = 11;

		data->sample_time = MSEC_PER_SEC / 10;

		break;

	case mcp980x:

		data->resolution_limits = 9;

		/* fall through */
@@ -397,6 +402,7 @@ static const struct i2c_device_id lm75_ids[] = { 
	{ "max31725", max31725, },

	{ "max31726", max31725, },

	{ "mcp980x", mcp980x, },

	{ "pct2075", pct2075, },

	{ "stds75", stds75, },

	{ "stlm75", stlm75, },

	{ "tcn75", tcn75, },
@@ -466,6 +472,10 @@ static const struct of_device_id __maybe_unused lm75_of_match[] = { 
		.compatible = "maxim,mcp980x",

		.data = (void *)mcp980x

	},

	{

		.compatible = "nxp,pct2075",

		.data = (void *)pct2075

	},

	{

		.compatible = "st,stds75",

		.data = (void *)stds75

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