Fwd: [PATCH 1/2] hwmon: (lm75) Add support for TMP75B

[Iker Perez del Palomar <iker.perez@codethink.co.uk>]

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>
---
  Documentation/hwmon/lm75 |  5 +++--
  drivers/hwmon/lm75.c     | 13 +++++++++++++
  2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index 010583608f12..baf052935761 100644
--- a/Documentation/hwmon/lm75
+++ b/Documentation/hwmon/lm75
@@ -47,8 +47,8 @@ Supported chips:
      Addresses scanned: none
      Datasheet: Publicly available at the ST website
             https://www.st.com/resource/en/datasheet/stlm75.pdf
-  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, 
TMP175, TMP275
-    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 
'tmp75', 'tmp75c', 'tmp275'
+  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75B, 
TMP75C, TMP175, TMP275
+    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 
'tmp75', 'tmp75b', 'tmp75c', 'tmp275'
      Addresses scanned: none
      Datasheet: Publicly available at the Texas Instruments website
                 http://www.ti.com/product/tmp100
@@ -56,6 +56,7 @@ Supported chips:
                 http://www.ti.com/product/tmp105
                 http://www.ti.com/product/tmp112
                 http://www.ti.com/product/tmp75
+               http://www.ti.com/product/tmp75b
                 http://www.ti.com/product/tmp75c
                 http://www.ti.com/product/tmp175
                 http://www.ti.com/product/tmp275
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index 62acb9f16ec5..1b5c32cbdc62 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -32,6 +32,7 @@
  #include "lm75.h"


+
  /*
   * This driver handles the LM75 and compatible digital temperature 
sensors.
   */
@@ -59,6 +60,7 @@ enum lm75_type {        /* keep sorted in alphabetical 
order */
      tmp175,
      tmp275,
      tmp75,
+    tmp75b,
      tmp75c,
  };

@@ -378,6 +380,12 @@ 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:
+        clr_mask |= 1 << 15;        /* not one-shot mode */
+        data->resolution = 12;
+        data->sample_time = MSEC_PER_SEC / 32;
+        break;
+
      case tmp75c:
          clr_mask |= 1 << 5;        /* not one-shot mode */
          data->resolution = 12;
@@ -438,6 +446,7 @@ static const struct i2c_device_id lm75_ids[] = {
      { "tmp175", tmp175, },
      { "tmp275", tmp275, },
      { "tmp75", tmp75, },
+    { "tmp75b", tmp75b,},
      { "tmp75c", tmp75c, },
      { /* LIST END */ }
  };
@@ -537,6 +546,10 @@ static const struct of_device_id lm75_of_match[] = {
          .data = (void *)tmp75
      },
      {
+        .compatible = "ti,tmp75b",
+        .data = (void *)tmp75b
+    },
+    {
          .compatible = "ti,tmp75c",
          .data = (void *)tmp75c
      },

-- 
2.11.0

-- 
Iker Perez del Palomar, Software Engineer
Codethink Ltd                             35 Dale St, Manchester M1 2HF
http://www.codethink.co.uk/          Manchester, M1 2JW, United Kingdom
We respect your privacy.   See https://www.codethink.co.uk/privacy.html