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: Iker Perez del Palomar Sustatxa <iker.perez@codethink.co.uk>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/hwmon/lm75.rst

@@ -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

@@ -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