hwmon: (lm70) Add support for TI TMP122/124
Add support for Texas Instruments TMP122/124 which are nearly identical to
their TMP121/123 except that they also support programmable temperature
thresholds.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
index 52c5cdd..543556d 100644
--- a/drivers/hwmon/lm70.c
+++ b/drivers/hwmon/lm70.c
@@ -46,6 +46,7 @@
#define LM70_CHIP_TMP121 1 /* TI TMP121/TMP123 */
#define LM70_CHIP_LM71 2 /* NS LM71 */
#define LM70_CHIP_LM74 3 /* NS LM74 */
+#define LM70_CHIP_TMP122 4 /* TI TMP122/TMP124 */
struct lm70 {
struct spi_device *spi;
@@ -92,7 +93,7 @@ static ssize_t temp1_input_show(struct device *dev,
* Celsius.
* So it's equivalent to multiplying by 0.25 * 1000 = 250.
*
- * LM74 and TMP121/TMP123:
+ * LM74 and TMP121/TMP122/TMP123/TMP124:
* 13 bits of 2's complement data, discard LSB 3 bits,
* resolution 0.0625 degrees celsius.
*
@@ -106,6 +107,7 @@ static ssize_t temp1_input_show(struct device *dev,
break;
case LM70_CHIP_TMP121:
+ case LM70_CHIP_TMP122:
case LM70_CHIP_LM74:
val = ((int)raw / 8) * 625 / 10;
break;
@@ -143,6 +145,10 @@ static const struct of_device_id lm70_of_ids[] = {
.data = (void *) LM70_CHIP_TMP121,
},
{
+ .compatible = "ti,tmp122",
+ .data = (void *) LM70_CHIP_TMP122,
+ },
+ {
.compatible = "ti,lm71",
.data = (void *) LM70_CHIP_LM71,
},
@@ -191,6 +197,7 @@ static int lm70_probe(struct spi_device *spi)
static const struct spi_device_id lm70_ids[] = {
{ "lm70", LM70_CHIP_LM70 },
{ "tmp121", LM70_CHIP_TMP121 },
+ { "tmp122", LM70_CHIP_TMP122 },
{ "lm71", LM70_CHIP_LM71 },
{ "lm74", LM70_CHIP_LM74 },
{ },