[PATCH v6 4/5] iio: temperature: tmp117: add TI TMP116 support

[Marco Felsch <m.felsch@xxxxxxxxxxxxxx>]

The TMP116 is the predecessor of the TMP117. The TMP116 don't support
custom offset calibration data, instead this register is used as generic
EEPROM storage as well.

Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
---
v6:
- fix compiling
v5:
- no changes
v4:
- split into two patches
  - 1st) handle fallback (Jonathan)
  - 2nd) this one, adding the support for tmp116
v3:
- use switch case within probe() as well
- don't hide smbus_read error within tmp117_identify()
- add dedicated compatible
v2:
- no changes

 drivers/iio/temperature/tmp117.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/temperature/tmp117.c b/drivers/iio/temperature/tmp117.c
index 8a3992d9ee937..9bfb818c3bf1d 100644
--- a/drivers/iio/temperature/tmp117.c
+++ b/drivers/iio/temperature/tmp117.c
@@ -32,9 +32,11 @@
 #define TMP117_REG_DEVICE_ID		0xF
 
 #define TMP117_RESOLUTION_10UC		78125
-#define TMP117_DEVICE_ID		0x0117
 #define MICRODEGREE_PER_10MILLIDEGREE	10000
 
+#define TMP116_DEVICE_ID		0x1116
+#define TMP117_DEVICE_ID		0x0117
+
 struct tmp117_data {
 	struct i2c_client *client;
 	s16 calibbias;
@@ -109,6 +111,14 @@ static const struct iio_chan_spec tmp117_channels[] = {
 	},
 };
 
+static const struct iio_chan_spec tmp116_channels[] = {
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE),
+	},
+};
+
 static const struct iio_info tmp117_info = {
 	.read_raw = tmp117_read_raw,
 	.write_raw = tmp117_write_raw,
@@ -125,6 +135,7 @@ static int tmp117_identify(struct i2c_client *client)
 		return dev_id;
 
 	switch (dev_id) {
+	case TMP116_DEVICE_ID:
 	case TMP117_DEVICE_ID:
 		return dev_id;
 	}
@@ -172,6 +183,11 @@ static int tmp117_probe(struct i2c_client *client)
 	indio_dev->info = &tmp117_info;
 
 	switch (dev_id) {
+	case TMP116_DEVICE_ID:
+		indio_dev->channels = tmp116_channels;
+		indio_dev->num_channels = ARRAY_SIZE(tmp116_channels);
+		indio_dev->name = "tmp116";
+		break;
 	case TMP117_DEVICE_ID:
 		indio_dev->channels = tmp117_channels;
 		indio_dev->num_channels = ARRAY_SIZE(tmp117_channels);
@@ -183,12 +199,14 @@ static int tmp117_probe(struct i2c_client *client)
 }
 
 static const struct of_device_id tmp117_of_match[] = {
+	{ .compatible = "ti,tmp116", .data = (void *)TMP116_DEVICE_ID },
 	{ .compatible = "ti,tmp117", .data = (void *)TMP117_DEVICE_ID },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, tmp117_of_match);
 
 static const struct i2c_device_id tmp117_id[] = {
+	{ "tmp116", TMP116_DEVICE_ID },
 	{ "tmp117", TMP117_DEVICE_ID },
 	{ }
 };
-- 
2.30.2