[lm-sensors] [PATCH] lm75: Add support for the TMP75C

[lm-sensors] [PATCH] lm75: Add support for the TMP75C

[Ben Gardner]

The TMP75C has a different control register layout and only supports
12-bit temperature samples (0.0625 deg C).
The continuous sample rate is ~12 Hz.

Signed-off-by: Ben Gardner <gardner.ben@gmail.com>
---
 Documentation/hwmon/lm75 | 5 +++--
 drivers/hwmon/lm75.c     | 7 +++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
index 67691a0..ac95edf 100644
--- a/Documentation/hwmon/lm75
+++ b/Documentation/hwmon/lm75
@@ -42,8 +42,8 @@ Supported chips:
     Addresses scanned: none
     Datasheet: Publicly available at the ST website
                http://www.st.com/internet/analog/product/121769.jsp
-  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP175, TMP275
-    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp275'
+  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, TMP175, TMP275
+    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75c', 'tmp275'
     Addresses scanned: none
     Datasheet: Publicly available at the Texas Instruments website
                http://www.ti.com/product/tmp100
@@ -51,6 +51,7 @@ 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/tmp75c
                http://www.ti.com/product/tmp175
                http://www.ti.com/product/tmp275
   * NXP LM75B
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index fe41d5a..84b6ccc 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -57,6 +57,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
 	tmp175,
 	tmp275,
 	tmp75,
+	tmp75c,
 };
 
 /* Addresses scanned */
@@ -280,6 +281,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		data->resolution = 12;
 		data->sample_time = HZ / 2;
 		break;
+	case tmp75c:
+		clr_mask |= 1 << 5;		/* not one-shot mode */
+		data->resolution = 12;
+		data->sample_time = HZ / 4;
+		break;
 	}
 
 	/* configure as specified */
@@ -343,6 +349,7 @@ static const struct i2c_device_id lm75_ids[] = {
 	{ "tmp175", tmp175, },
 	{ "tmp275", tmp275, },
 	{ "tmp75", tmp75, },
+	{ "tmp75c", tmp75c, },
 	{ /* LIST END */ }
 };
 MODULE_DEVICE_TABLE(i2c, lm75_ids);
-- 
1.9.1


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Re: [lm-sensors] [PATCH] lm75: Add support for the TMP75C

[Guenter Roeck]

On 10/07/2015 07:55 PM, Ben Gardner wrote:
> The TMP75C has a different control register layout and only supports
> 12-bit temperature samples (0.0625 deg C).
> The continuous sample rate is ~12 Hz.
>
> Signed-off-by: Ben Gardner <gardner.ben@gmail.com>

Applied.

Thanks,
Guenter

> ---
>   Documentation/hwmon/lm75 | 5 +++--
>   drivers/hwmon/lm75.c     | 7 +++++++
>   2 files changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/hwmon/lm75 b/Documentation/hwmon/lm75
> index 67691a0..ac95edf 100644
> --- a/Documentation/hwmon/lm75
> +++ b/Documentation/hwmon/lm75
> @@ -42,8 +42,8 @@ Supported chips:
>       Addresses scanned: none
>       Datasheet: Publicly available at the ST website
>                  http://www.st.com/internet/analog/product/121769.jsp
> -  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP175, TMP275
> -    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp275'
> +  * Texas Instruments TMP100, TMP101, TMP105, TMP112, TMP75, TMP75C, TMP175, TMP275
> +    Prefixes: 'tmp100', 'tmp101', 'tmp105', 'tmp112', 'tmp175', 'tmp75', 'tmp75c', 'tmp275'
>       Addresses scanned: none
>       Datasheet: Publicly available at the Texas Instruments website
>                  http://www.ti.com/product/tmp100
> @@ -51,6 +51,7 @@ 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/tmp75c
>                  http://www.ti.com/product/tmp175
>                  http://www.ti.com/product/tmp275
>     * NXP LM75B
> diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
> index fe41d5a..84b6ccc 100644
> --- a/drivers/hwmon/lm75.c
> +++ b/drivers/hwmon/lm75.c
> @@ -57,6 +57,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
>   	tmp175,
>   	tmp275,
>   	tmp75,
> +	tmp75c,
>   };
>
>   /* Addresses scanned */
> @@ -280,6 +281,11 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
>   		data->resolution = 12;
>   		data->sample_time = HZ / 2;
>   		break;
> +	case tmp75c:
> +		clr_mask |= 1 << 5;		/* not one-shot mode */
> +		data->resolution = 12;
> +		data->sample_time = HZ / 4;
> +		break;
>   	}
>
>   	/* configure as specified */
> @@ -343,6 +349,7 @@ static const struct i2c_device_id lm75_ids[] = {
>   	{ "tmp175", tmp175, },
>   	{ "tmp275", tmp275, },
>   	{ "tmp75", tmp75, },
> +	{ "tmp75c", tmp75c, },
>   	{ /* LIST END */ }
>   };
>   MODULE_DEVICE_TABLE(i2c, lm75_ids);
>


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